Home

Black Box LES1203A-11G Remote Starter User Manual

Contents

1. 2 EIERN mt ME 32 POIs qe tais 33 Range Je TEN 35 Antenna di etait t oia 36 Step 1 Visually Aligning the antennas eeenennnnnnnennnnn 36 Step 2 Activating the front panel EE DS 3 entr tit 36 Step 3 Fine tuning the adjustment of the antenna using RSSI Measurement 37 Synchronizing Co located Modem Unit reete merenti ree rn ndn cie eec 40 Step T Installing We ANENA S mea SERRE PERSE eda ple ES Cota 41 Step 2 Setting the relevant 41 Step 3 Connecting the dto pen PR tede oe reden 43 4 49 SALES 0118 965 5100 P 2 048Mbps Wireless Modem D P 44 Set up and Configuration f BOCDOTISs aeree cox pae rect tra nene a reas renean 44 Accessing the Set up and Configuration Functions sese 44 Main MENU UPC RR 44 Patamet rs MENU c 45 Counters and Tracers Menu scd coros vd db Ta y OA i 45 Mode and Access Control DR PE GU QU 45 i i 46 cit ent cn 46 Parameters vem aha prude aah th 46 To access the Parameters Menu uu c
2. BLACK BOX 2 048Mbps Wireless Modem G703 MWU2000 G703 X 21 MWU2000 X21 35 MWU2000 V35 Directional Antennas with 10 m of cable 12dBi Transmit 12dBi Receive MWU2000 1212 12dBi Transmit 18dBi Receive MWU2000 1218 12dBi Transmit 24dBi Receive MWU2000 1224 2 048Mbps Wireless Modem TECHNICAL SALES FAX ADDRESS WEB 0118 965 6000 0118 965 5100 0118 965 5001 464 Basingstoke Road Reading Berkshire RG2 0QN www blackbox co uk 2 048Mbps Wireless Modem How To Contact your Local Black Box Italy Black Box Italia S P A Tel 0227400280 Fax 0227400219 Web Site www blackbox it Deutschland Black Box Deutschland Tel 0811 5541 0 Fax 0811 5541 499 Web Site www blackbox deutschland com Switzerland Datacom Black Box Services AG Tel 0554517070 Fax 0554517075 Web Site www black box ch Netherlands Black Box Datacom BV Tel 03032417799 Fax 0302414746 Web Site www blackbox nl Belgium Black Box Tel 027258550 Fax 027259212 Web Site www blackbox be 2 49 SALES 0118 965 5100 w Australia Black Box Catalog Australia PTY LTD Tel 0398797100 Fax 0398702955 Brazil Black Box Do Brasil Tel 011 5515 4000 Fax 011 5515 4002 Web Site www blackbox com br Canada Black Box Canada Corp Tel 0416 736 8000 Fax 0416 736 7348 Web Site www blackbox com Mexico Black Box De Mexico S A de C V Tel 05 420 0100 Fax 05 420 0123 Web Site
3. 2 048Mbps Wireless Modem Remote Frame Alarm In fractional E1 applications an indication from the connected end equipment that it was unsuccessful in synchronizing with the 2 048Mbps Wireless Modem Check the cable which connects the end equipment to the modem Yellow alarm In fractional T1 applications an indication from the connected end equipment that it was unsuccessful in synchronizing with the 2 048Mbps Wireless Modem Check the cable that connects the end equipment to the modem Frame slip In Fractional 1 or Fractional T1 applications indicates lack of compatibility between the clocks of the 2 048Mbps Wireless Modem and the end equipment Configure properly the clocks in the end equipment Remote BreezeLINK Unsync In Fractional 1 or Fractional T1 applications indicates a temporary incidence of a very noisy radio channel Repeated occurrences indicate a very noisy radio channel a hardware problem e g clocks with excessive jitter or a problem related to configuration of clocks Correction Check the quality of the radio link If the quality is low try to improve it Otherwise the unit should be checked by an authorized Black Box technician Too many BPV CV In Fractional El applications too many Bipolar code violations indicates selection of bipolar AMI line code in the 2 048Mbps Wireless Modem when the end equipment uses HDB3 line code In Fractional 1 applications too many Bipolar code violations
4. applicable pulse mask requirements of the DSX 1 standard the Pulse Shape Parameter should be set according to the line length option 1 to 5 2 048Mbps Wireless GOC Figure C 6 Fractional TI CSU Network Interface In several applications the 2 048Mbps Wireless Modem might be connected to CSU DSU equipment as shown in Figure C 7 This type of connection may be chosen because of a technical e g a special MUX interface not supported by 2 048Mbps Wireless Modem or other reason This type of connection is referred to as a CSU network connection and the Line Length Parameters menu should be set according to the sensitivity level of the CSU DSU option 6 to 8 125 TECHNICAL 0118 931 2233 lt gt 2 048Mbps Wireless Modem Fractional E1 T1 Back to Back Configuration EUTI 2 048Mbps 1 1 1 L 1 1 i Wireless 2 048Mbps 2 048Mbps Wireless Modem Master Wireless Wireless Modem Modem Master Modem 2 048Mbps Ed Cross RJ 45 cable Network ID 1 Network 10 2 Hopping Seq 1 Hopping Seq 2 Figure C 7 Fractional 1 1 Back to Back Configuration Echo Cancellation in Fractional E1 T1 Applications Regular telephony systems use 4 wires circuits one pair for the transmitted signal microphone and one pair for the received signal earphone The transmission system is comprised of a single pair 2 wires and a hybrid component used for the required conversion from 4 to 2 wires and vice ver
5. Maximum Unregulated Range Table Antenna Alignment In order to function properly and to provide quality results the modems on either side of the link must have a stable RF link The alignment procedure is performed in three steps First you visually align the antennas on both sides of the link Next you activate the Radio and Line LEDs on the front panels of the units which show basic synchronization by a process of adjusting the antennas Finally you fine tune the adjustment of the antenna using the RSSI Received Signal Strength Indication measurement procedure described below For more information on pre installation Site Survey mode and post installation tests Counters and Tracers menu see Chapter 3 Step 1 Visually Aligning the antennas 1 Loosen the screws on the U bolt that fasten the antenna to the mast or the bolts on the wall mount and slowly move the antenna up and down elevation and from side to side azimuth until the antenna points roughly in the direction of the site on the other side of the link For long distance links or when it is not possible to see the remote location use a GPS or a map and a compass for the first alignment 2 Tighten the screws on the U bolt or the bolts on the wall mount Note Repeat for each antenna Rx and Tx on both units Step 2 Activating the front panel LEDs Two pairs of LEDs on the 2 048Mbps Wireless Modem front panel are lit when the units are synchronized When the
6. Standards US FCC Part 15 247 UL UL C Europe CEPT T R 10 01 ETS 300 328 CE TUV GS 104 49 SALES 0118 965 5100 24 2 048Mbps Wireless Modem Antennas Sets One transmit antenna one receive antenna Standard Antennas e low 8 5dBi 8 5dBi e Basic 12 dBi 12dBi e Medium Gain 12dBi 18dBi e High Gain 12 24dBi TPA 24 Technical Specifications Models used with 2 048Mbps Wireless Modem 24 LL TPA 24 LH Input Power TPA 24 LL 10dBm 0dBm Lowinput TPA 24 LH 0dBm 10dBm High input Output Power 24 dBm 250mW fixed output level Input Impedance 500 Output Impedance 500 Operating Temperature 20 C to 50 Power Requirements 12V 420 mA power is supplied via the RF cable Connectors IN N type Male OUT N type Female Dimensions 70mm x 150mm x 25mm 2 8 x 6 x 1 Operating Environment For outdoor indoor use LNA 10 Technical Specifications Gain 10dB Noise Figure 1 5dB Typ 2dB Max Response Flatness 1 5dB Max RF Input Level 15dBm Input Impedance 50 Output Impedance 500 105 TECHNICAL 0118 931 2233 lt gt 2 048Mbps Wireless Modem Connectors LNA 10 RF IN N type female RF OUT N type male Signal and Power IN not in use e Signal and Power OUT F type female Power Inserter To CONV F type female To TV F type female not in use Power Supply Required Voltage 12V to 28Vdc Required Current 20mA Operating Temperatur
7. To check error rate on end equipment 1 From the Counters and Tracers menu select Watch Alarms 2 If the Modem rate too low for RADIO BUFFER ERROR RATE alarm appears this indicates that the difference between the LIU clock rate and the modem rate 15 too low to correct all radio errors To solve this problem mprove the radio link quality reduce error rate Decrease the LIU clock rate Increase the modem rate 3 If the Delay setting may be too short to correct all errors alarm appears this indicates that long bursts of errors overcome or nearly overcome the error correction mechanism To solve this problem Increase the link delay 4 If no alarm appears this indicates that the errors are not a result of errors on the radio link but rather a configuration or a physical cable problem with the end equipment Use the Loopback mode in the LIU Parameters menu to locate the source of the problem For X 21 RS 530 and V 35 verify that the DCE Internal Clock or DCE External Clock or DTE settings on each unit is matched by the DCE DTE configuration of the end equipment e For El Fractional and Fractional verify that the line coding scheme used by the 2 048Mbps Wireless Modem and the end equipment are the same 88 49 SALES 0118 965 5100 2 048Mbps Wireless Modem For El and Fractional verify that the balanced unbalanced configuration of the LIU set by the jumpers on the LIU board ma
8. details 0 Straight 2100Hz tone default 1 Phase reversed 2100Hz tone 2 2100Hz VPA tone See Echo canceler disabling method below 0 Set Echo cancellation on voice channels 1 Clear Echo cancellation on voice channels Enter numbers between 1 to 31 separated by a comma Two dots are used to indicate a range e g 1 8 11 Set Echo cancellation to channel 1 and all channels from 8 to 11 Enter numbers between 1 to 31 separated by a comma Two dots are used to indicate a range e g 1 8 11 Remove Echo cancellation from channel 1 and all channels from 8 to 11 See Fractional El Alarm Buffer below for details Two methods may be used to indicate to the end equipment of an alarm condition following loss of synchronization e Bit 3 of TS Time Slot 0 Under normal conditions this bit is always set to 0 Upon identification of an alarm condition it 15 set to 1 e Unframed all ones The transmitted signal comprises a continuous sequence of ones without any ramming or other signalling messages The Remote alarm method should be set in accordance with the configuration of the end equipment TECHNICAL 0118 931 2233 49 49 2 048Mbps Wireless Modem Long haul Short haul This parameter determines the sensitivity of the receiver circuits in the line interface to the end equipment If the distance between modem and the end equipment is up to 500 meters it should be set to 0 short haul If the distance
9. select Parameters Info Screen 2 In the Parameters Info Screen verify that The Clock Rate on both units is the same e The LIU type definition matches the LIU that you are using For X 21 RS 530 and V35 verify that the DCE Internal Clock or DCE External Clock or DTE on each unit matches the jumper setting on the LIU board For Fractional or T1 verify that the same channels are used in both sides of the link 86 49 SALES 0118 965 5100 2 048Mbps Wireless Modem 3 For X 21 RS 530 and V 35 configured as DCE External Clock or DTE verify that The end equipment is defined as DTE or DCE accordingly The end equipment is connected to the unit In the Counters and Tracers menu select Watch Alarms Verify that the alarm monitor checks that the clock rate setting of the end equipment matches the clock rate setting of the unit 4 For Fractional E1 Verify that the line coding selected HDB3 AMI matches the setting of the end equipment Verify that echo cancellation is not activated on channel 0 n CAS Channel Associated Signalling systems verify that echo cancellation is not activated on channel 16 Check correct connection of the cable connecting the unit to the end equipment Verify that the LOS LED is not On Check that the balanced unbalanced configuration of the LIU module jumpers setting matches the setting of the end equipment 5 For Fractional T1 Verify that the line co
10. Parameters 2 048Mbps Wireless Modem supports full management of the remote unit providing that there is a working link between the two units Therefore the user should refrain from making changes to the remote units that may result in a complete loss of the link The Remote Parameters menu gives you access to the following parameters e Switch to remote monitor e Switch to local monitor e PING remote unit Download remote database to remote unit 65 TECHNICAL 0118 931 2233 lt gt 2 048Mbps Wireless Modem Copy local database and download to remote unit Menu Options Notes 1 Switch to remote Enter 1 digit monitor 2 Switch to local Enter 0 or 1 Switch back to local monitor monitor remote database will be lost 1 Do not switch back to local monitor 3 PING remote unit Enter digit Po 4 Download remote Enter 0 or 1 0 Download database database to remote changes will take effect unit Do not download database yet 5 Copy local database Enter 0 or 1 Copy local database and and download to download to remote unit remote unit changes will take effect Do not copy database and download to remote unit yet Table 3 12 REMOTE Parameters Menu Options Switch to Remote Monitor When selecting option 1 Switch to remote monitor in the REMOTE Parameters Menu the database of the remote unit starts loading into the local unit This process takes some time and the time
11. The unit will reset after this message Table 4 1 Error Messages Source Problem 8 One or more links function properly are synchronised but when adding another link performance degrades Probable cause Incorrect configuration of all units connected by the synchronization cable Physical problems with the synchronization cable To check the configuration of each unit 1 In the Counters and Tracers menu select Watch Alarms and make sure no alarms regarding synchronization are present 2 From the Parameters menu select Parameters Info Screen 3 Verify that all units are configured as Master and each has a different Network I D 92 lt gt SALES 0118 965 5100 2 048Mbps Wireless Modem 4 Verify that the following parameters are the same in both units Hopping Standard and Hopping Sequence Clock Rate and Modem Rate 5 Check that the number of links to synchronize parameter is greater or equal to the number of connected units Problem 9 The fractional E1 T1 link is synchronised but one or some systems that are connected to the end equipment i e telephone fax voicemail is not working properly Probable cause ncorrect configuration of the channels selected in the modem Echo cancellation is activated on data signaling channels Non matching tone disabling method The link delay is too high e Too many errors If the telephone s does not work properly 1 Verify that echo cancella
12. Using the same time resolution as the Time Tracer Errors versus Time this graph displays the maximum number of consecutive errors in each time unit At the top of the graph appears information on the maximum number of consecutive errors identified during the tracing period and how much time passed since this event Each column in the graph represents the relative number of consecutive errors in the relevant time period The graph displays the history of the last 69 time units according to the defined resolution Set Time Tracer Resolution option 7 in the Counters and Tracers Menu or the history since the last time the Time Tracer was reset see also page 76 This tracer is very important since long bursts of consecutive errors can pass the ARQ error correction algorithm uncorrected The above tracer shows when these long bursts occurred and their length The longest isolated burst of consecutive errors tolerated by the ARQ algorithm depends on the delay setting The following table displays for each delay setting the maximum number of consecutive errors and blocked frequency channels resulting in no errors at the LIU due to the ARQ algorithm Delay Setting No of errored No of blocked E ESSEN Table 3 17 Delay Setting Set Time Tracer Resolution When the Time Tracer is displayed you can view up to 69 traced time intervals To set the time intervals 1 In the Counters and Tracers menu type 7 The Set Time Tracer Resoluti
13. a comma Use two dots to indicate a range e g 2 5 7 means remove echo cancellation from channels 2 5 6 and 7 6 In Fractional T1 applications both units should be configured to use the same channels In applications with voice channels both units should be configured to use echo cancellation in the same channels To Configure Channels Fractional T1 1 From the Main menu select 1 to access the Parameters menu 2 From the Parameters menu type 1 to select the LIU Parameters menu 3 From the LIU Parameters menu type 4 to select the Fractional 1 Parameters menu 4 From the Fractional 1 Parameters menu type 1 to select the Add Remove channels menu 5 From the Add Remove Channels menu type 1 to select the Add Channels menu 6 View the current active channels If channels that should be used are not included enter the numbers of the channels that should be added Enter numbers between 1 to 24 separated by a comma Use two dots to indicate a range e g 1 8 11 14 means add channels 1 8 9 10 11 and 14 7 From the Add Remove Channels menu type 2 to select the Remove Channels menu 8 View the current active channels If channels that should not be used are included enter the numbers of the channels that should be removed from the list Enter numbers between 1 to 24 separated by a comma Use two dots to indicate a range e g 2 5 7 means remove channels 2 5 6 and 7 To Configure Channels with Echo Cancellation Fractio
14. an EI T1 Wireless Modem to 1 1 end equipment For each possible connection the indications given by the 2 048Mbps Wireless Modem unit and the expected end equipment behaviour are described The RJ 45 balanced four wire interface is also discussed The second part of this appendix provides information about E1 T1 LIU board jumper settings In addition some explanation is provided on T1 CSU DSU applications E1 T1 Connections and Common Problems Link Setup The set up includes two 2 048Mbps Wireless Modem units each connected to end equipment One end equipment unit is the source of the clock and is called CO Central Office The other unit uses loopback timing 1 e lock on the CO clock and return it and is called PBX The modem connected to the CO is configured as Master and the other modem as Slave 2 048Mbps 2 048Mbps Wireless Wireless Modem 1 Modem 2 Figure B 1 E1 T1 Application Table B 1 summarizes the possible connections and the resulting behaviour 114 49 SALES 0118 965 5100 24 Master Slave Connection 1 Master 2 Slave 1 Slave 2 Master TX RX Pairs Connection OK OK 2 048Mbps Wireless Modem Comments eee ee connection meme works Reversed LIU Clock Not Drift indicated synchronized LOS can be indicated Synchronized TIP RING Connection Modem End LED Status Equipment Behavior Modem Monitor Alarm e Reversed but E1 T1 fram
15. by water hazardous terrain or difficult weather conditions e Is simple to install giving immediate communication ability to remote sites e Links headquarters with branch offices Provides a back up link for cable connections 2 048Mbps Wireless Modem Components The 2 048Mbps Wireless Modem is comprised of four main components e Line Interface Unit Modem e Radio Antennas These components are described in detail in the following sections 11 TECHNICAL 0118 931 2233 lt gt 2 048Mbps Wireless Modem Line Interface Unit The Line Interface Unit connects the 2 048Mbps Wireless Modem to the WAN or to the DTE Data terminal Equipment Any data voice or video system can be connected to the 2 048Mbps Wireless Modem using standard interfaces e T1 DSX 1 Line code B8ZS or Bipolar AMI e El G703 Line code HDB3 or Bipolar AMI Fractional DSX 1 Line code B8ZS or Bipolar AMI e Fractional G703 Line code HDB3 or Bipolar AMI e RS 530 digital interface This interface also supports X 21 using an additional adapter cable e V 35 digital interface The Line Interface Unit consists of an internal Network Interface Card and the applicable connectors mounted on the rear panel of the unit The 2 048Mbps Wireless Modem can be ordered with the following optional Line Interfaces RS530 The rear panel connection is made with a D Type 25 pins female connector Figure 1 4 2 048Mbps Wireless Modem R
16. clock frequency to set value WARNING DPLL is noisy due to bad link conditions or noisy input clock Indicates that bad link conditions prevent the slave unit from synthesizing a stable LIU clock Check the link and the clock WARNING Too many links to Reduce requested number synchronize The specified number of links to synchronize is too high for the selected hopping standard Reduce the number of links to synchronize 80 49 SALES 0118 965 5100 24 2 048Mbps Wireless Modem Message WARNING Net I D too high relevant only regarding synchronization Description The Net I D for a link that should be synchronized is higher that the requested number of links to synchronize Correction Adjust the Net I D Message WARNING Difference in parameter s between two units Description Different setting of parameters in the two units forming the links This message will be followed by more details as follows Normal Test Mode Setting one of the units is in Test mode and the other one is set to Normal mode HOP Standard Setting different HOP standards setting are used in the two units HOP Sequence setting different hopping sequences are selected in the two units Test Sequence channels different sequences used in test mode Clock Rate different clock rates selected in the two units Delay Setting different link delay settings in the two units Master Slave setting both units are defined as Master Ech
17. configuration functions as described in Chapter 3 Note A unit running software version 1 7 is not compatible and cannot be connected in a link to a unit running software version 1 6 and earlier Antennas Cables and Accessories There is a variety of standard antennas cable types and RF accessories for different gain levels available Antennas Basic Antenna Uni 8 5 The basic antenna has a gain of 8 5 dBi Low alignment accuracy is required because of the relatively large beam width 75 degrees horizontal 50 degrees vertical It is intended for indoor or outdoor installation in locations with relatively short distances between sites UNI 8 5 dimensions are 101 x 95 x 32 mm 4 x 3 75 x 1 25 in 22 49 SALES 0118 965 5100 24 2 048Mbps Wireless Modem Figure 2 2 Basic 8 5 dBi Antenna Showing Installation screws Medium Gain 12dBi Antenna Uni 12 This medium gain antenna has a relatively wide beam width 22 degrees It is intended for both indoor and outdoor installations with medium distances between sites UNI 12 Antenna dimensions are 15 x 15 x 38 cm 6 x 6x 15in 23 TECHNICAL 0118 931 2233 5 2 048Mbps Wireless Modem Figure 2 3 Medium Gain 12dBi Antenna Medium Gain 18dBi Antenna Uni 18 This medium gain antenna has a medium beamwidth 14 degrees which increases the sensitivity to inaccurate alignment but decreases the influence of multipath propagation fading It is intended for ou
18. indicates selection of Bipolar AMI line code in the modem when the end equipment uses BHZS line code Configure the line code correctly 78 49 SALES 0118 965 5100 Message Description Correction Radio Alarms Message Description Correction Message Description Correction Message Description Message Description Correction 2 048Mbps Wireless Modem RLOS framer un synchronized In Fractional 1 applications the wireless modem was unsuccessful in synchronizing with the end equipment Check the cable that connects the end equipment to the modem Check that parameters of the modem and end equipment match each other e g framing method and line coding WARNING RSSI based on channel tracer more than maximum allowed power The radio receives too much power from one or more channels Use a lower gain receive antenna or a low power setting or a lower gain transmit antenna on the transmitter at the opposite end WARNING RSSI based on channel tracer below reception threshold The radio does not receive enough power on one or more channels Use a higher gain receive antenna use a higher gain transmit antenna or a Transmit Power Amplifier at the opposite end or reduce losses in the RF cables WARNING RSSI based on channel tracer indicates fade margin less than 10dB There is less than 10dB fade margin on the power received by the radio on one or more channels Correctio
19. link rate of 3 Mbps maximal power level input should not exceed 25 dBm Cable k T 1 Range m Range m Range m Range m length ty A for 1536 to for 768 to for 384 to for 64 to m zai zai 2048 Kbps 1472 Kbps 704 Kbps 320 Kbps modem modem modem modem rate 3Mbps rate 2Mbps rate rate IMbps 0 5Mbps Table 2 4 European Range Table Cable Cable type Tx Ant Rx Ant Range Range Range Range length Gain dB Gain dB miles miles for miles miles for ft for 1536 768 to for 384 64 to 320 to 2048 1472 Kbps to 704 Kbps Kbps modem Kbps modem Modem rate modem rate rate 2Mbps rate 0 5Mbps 3Mbps 1Mbps 8 LMR 200 8 5 500 ft ft m 0 9 20 RG 8 U9913 12 1 los RG 8 U9913 18 0 4 0 7 RG 8 U9913 S 2 2 LMR 600 RG 8 U9913 TP LNA Hs 5 RG 8 U9913 TPA 18 LNA 3 5 RG 8 U9913 12 24 LNA Table 2 5 USA Range Table 35 TECHNICAL 0118 931 2233 49 2 048Mbps Wireless Modem Cable Cable type Rx Ant Range m Range m Range m Range m length for 1536 for 768 to for 384to for 64 to m to 2048 1472 704 Kbps 320 Kbps Kbps Kbps modem modem modem modem rate rate rate rate IMbps 0 5Mbps 3Mbps 2Mbps 20 Heliax 18 1000 2000 5000 6500 20 Heliax 24 4000 8000 10000 14000 20 Heliax 18 5000 10000 15000 20000 20 Heliax 24 24 LNA 15000 20000 30000 35000 Table 2 6
20. of the modem and the end equipment Remote BreezeLINK Unsync Indicates a temporary incidence of a very noisy radio channel Repeated occurrences indicate either a very noisy radio channel or a hardware problems e g clocks with excessive jitter or a problem related to configuration of clocks Too many BPV CV Too many Bipolar code violations indicates selection of Bipolar AMI line code in the modem when the end equipment uses B8ZS line code When an alarm is detected a note appears at the bottom of the display Note An alarm has been activated and the message ALARM EXISTS is displayed on the menu header see Figure 3 1 In addition the TEST LED will blink 57 TECHNICAL 0118 931 2233 5 V 35 RS530 X 21 Parameter Menu 2 048Mbps Wireless Modem View current selection To change enter a number N for a clock rate of N 64 Kbps 1 Clock Rate 2 DCE DTE View current selection Enter 0 1 or 2 to change settings View current selection Enter 0 or Transmit Clock Polarity 1 to change settings View current selection Enter 0 or Receive Clock Polarity to change settings Any number 1 32 For example Enter N 4 for 256 kbps 0 DTE V 35 amp RS 530 1 DCE Internal Clock V 35 amp RS 530 amp X 21 2 DCE External Clock V 35 amp RS 530 3 DTE X 21 See DCE DTE below for more information 0 Positive Edge default l Negative Edge See Clock Polarity below for
21. select the LIU Parameters menu 2 to select the MCP Parameters menu Type 3 to select the Modem and Radio Parameters menu Type 4 to select the Remote Parameters menu 5 to select the Load Default Values menu Type 6 to select the Parameters Info Screen 1 Follow the instructions on the screen 46 49 SALES 0118 965 5100 2 048Mbps Wireless Modem 2 Press Esc at any stage to return to the previous menu if you press Esc before making any selection the message Loading cancelled old value retained appears Note You can operate all the Setup and Configuration sub menus by using these procedures and by following the instructions on the screens LIU Parameters Menu The LIU Parameters menu gives you access to the following sub menus e E Parameters Menu select if an E1 LIU is used e Fractional Parameters Menu select if a Fractional LIU is used e Parameters Menu select if an LIU is used Fractional Parameters Menu select if a Fractional LIU is used e V 35 RS 530 X 21 Parameters Menu Select if a V 35 RS 530 X 21 LIUis used Loopback Mode ine Interface Unit type set at factory and should not be changed unless LIU changes E1 Parameters Menu Menu Item Options Notes l Line Coding View current selection 0 AMI Enter 0 or to change 1 HDB3 default settings A Alarm Buffer View El Alarms if any See Alarm Buffer bel
22. synchronization of collocated units and RSSI measurement using a DVM 8 49 SALES 0118 965 5100 2 048Mbps Wireless Modem Product Description The 2 048Mbps Wireless Modem is a high speed full duplex wireless modem employing two separate RF channels for simultaneous transmission and reception of data Using Frequency Hopping Spread Spectrum Radio Frequency modulation the 2 048Mbps Wireless Modem permits robust and reliable wireless communication between remote sites where a physical wired connection would be impossible impractical or too expensive The 2 048Mbps Wireless Modem 2048 supports data Transfer at speeds of up to 2 048 Mbps A DSP modem with adaptive equalization provides a dependable communication link even in bad line of sight conditions The compact dimensions of the 2 048Mbps Wireless Modem permit easy installation The unit is housed in a 1U half 19 enclosure for simple and time saving installation Optional line adapters enable interfacing of T1 El Fractional El Fractional T1 RS 530 V 35 or X 21 digital terminal equipment A built in echo canceller provides improved voice quality in voice applications using the Fractional E1 T1 line interface unit An RS232 V 24 interface 15 provided for local and remote status monitoring diagnostics and configuring system parameters The system operates in the 2 4 GHz ISM band allowing license free installation 9 BLACK BOX PWR TEST Qul Figure 1 3 2 048Mbps Wireless Modem Re
23. when using synchronization Figure 1 8 2 048Mbps Wireless Modem Connections El or Fractional LIU 17 TECHNICAL 0118 931 2233 4e 2 048Mbps Wireless Modem Installation Antennas and Accessories Package Components The 2 048Mbps Wireless Modem is shipped from factory with the following components The 2 048Mbps Wireless Modem Power cord 110 220 VAC models AC connector not supplied Monitor cable e Synchronization cable for collocated units e Cable adapter for DTE V 35 and X 21 only e This user s guide Installing the 2 048Mbps Wireless Modem General The following steps provide a guide to the correct installation and configuration of the unit 1 The 2 048Mbps Wireless Modem should be located indoors and positioned as close as possible to the antennas 2 Connect the unit to the end equipment If the data interface on the DTE is either V 35 or X 21 a cable adapter should be used as follows V35 25 pin D Type connector to modem s 34 pin V35 to DTE X21 25 pin D Type connector to modem s 15 pin D Type connector to DTE 3 Connect the antennas as follows Connect the receive antenna to RX connector Connect the transmit antenna to the TX connector 4 Connect the 2 048Mbps Wireless Modem to the power Outlet 5 If you are using the 48 VDC model open the two screws on the rear panel and slide out the board a few centimetres to allow easy access to the terminal block Verify that the wires are securely connec
24. 0 Jumper configuration J1 PC0442 Figure A 6 DCE External Clock Jumpers 111 TECHNICAL 0118 931 2233 4e 2 048Mbps Wireless Modem DTE Options 1 DTE Supported by V 35 RS 530 Jumper configuration PC0442 Figure A 7 DTE V 35 and RS 530 2 DTE Supported by X 21 Jumper configuration PC0442 Figure A 8 DTE X 21 Setting the DCE DTE Mode Parameter To set the DCE DTE mode 1 From the Setup and Configuration Main menu type 1 to access the Parameters menu 2 From the Parameters menu type 1 to access the LIU Parameters menu 3 From the LIU Parameters menu type 5 to access the V 35 RS 530 X 21 menu 4 From the V 35 RS 530 X 21 menu type 2 to access the DCE DTE menu 5 Select the required mode as follows Type 0 for DTE V 35 and RS 530 mode Type 1 for DCE internal clock Type 2 for DCE external clock 112 4e SALES 0118 965 5100 2 048Mbps Wireless Modem Type 3 for DTE X 21 mode Valid selections are in accordance with following guidelines DCE internal clock V 35 amp Rs 530 amp X 21 Supported by V 35 RS 530and X 21 DCE external clock V 35 amp RS 530 Supported by V 35 and RS 530 e DTE V 35 amp RS 530 Supported by V 35 RS 530 e DTE X 21 Supported by X 21 113 TECHNICAL 0118 931 2233 lt gt 2 048Mbps Wireless Modem Appendix B E1 Applications Introduction This appendix describes some of the possible ways to connect
25. 0 representing 2 500GHz depending on hopping sequence setting Note In the diagram I represents channel number 10 2 represents channel 20 and so on channels 5 15 and so forth are marked as while the other channels are marked as The height of the column signs represents the relative signal strength At the top of the graph the maximum and minimum RSSI levels are given in dBm An empty column indicates that this is the channel s with the minimal RSSI channel 47 in the example above A column with a sign at the bottom channel 39 in the example above represents a channel that is either blocked or is not included in the hopping sequence Note This graph is used only for measuring an operational link Note that it measures the received energy in the band including possible emissions from other sources See 82 for further information on measuring the energy received from undesired sources For good fade margin RSSI levels should allow for at least a 10 dB margin above the minimal level determined by the sensitivity at the applicable rate The following table provides the RSSI levels required for 10dB fade margin Table 3 16 RSSI Levels Note The maximum RSSI level must not exceed 10dBm 25dBm for a Radio Link Rate of 3Mbps Channel Tracer Errors Per Channel In the Counters and Tracers menu type 3 to view the Channel Tracer errors per channel graph Maz errors 0 105 percent on channel 13 Bo
26. 2 048Mbps Wireless Modem E1 T1 Back to Back Configuration 1 1 2 048Mbps 2 048Mbps 2 048Mbps Wireless Wireless Wireless Wireless Modem Slave 2 048Mbps Modem Master Modem Slave Modem Master Cross RJ 45 cable Network ID 1 Network 10 2 Hopping Seq 1 Hopping Saq 2 Figure B 8 EI T1 Back to Back Configuration 119 TECHNICAL 0118 931 2233 lt gt 2 048Mbps Wireless Modem Appendix C Fractional E1 T1 Applications Introduction This appendix explains under which conditions it is recommended to use the Fractional 1 1 LIU It also describes some of the possible ways to connect a Fractional 1 1 2 048Mbps Wireless Modem to Fractional 1 1 end equipment For each possible connection the indications given by the modem unit and the expected end equipment behaviour are described The RJ 45 balanced four wire interface is also discussed This appendix also provides information about Fractional E1 T1 LIU board jumper settings Some explanations are provided on T1 CSU DSU applications The last part of this appendix provide explanations on echo cancellation and its use in voice channels When to Use the Fractional E1 T1 LIU The Fractional 1 1 LIU can only be used in applications in which the end equipment supports framed data streams in accordance with E1 CEPT 1 or T1 DSX 1 standards The Fractional E1 T1 LIU cannot be used with unframed 1 1 data streams e g with routers It is recommende
27. 2 480 MHz Australia 2 402 2 448 MHz Canada 2 452 2 482 MHz Israel 2 420 2 455 MHz Japan 2 473 2 495 MHz France 2 449 2 482 MHz Table 5 3 Frequency Bandwidth According to Country Standard Transmitter Output Power 16dBm typical 15dBm minimum at the antenna port in high power mode 2dBm typical at the antenna port in low power mode 96 5 SALES 0118 965 5100 2 048Mbps Wireless Modem Maximum Spurious Level 60dBc Receiver Sensitivity The receiver sensitivity as a function of the radio BER is determined according to Table 5 4 Note that the radio error rate does not include the error correction algorithm which can improve sensitivity by up to 3dB depending on the settings of the unit Modem rate Sensitivity dBm Sensitivity Sensitivity Mpbs at BER 1E 4 dBm at BER dBm at BER Table 5 4 Receiver Sensitivity as a Function of the Radio BER Receiver Sensitivity e Retransmission of packets with errors e Elastic buffer to maintain continuous data flow The Radio BER improvement for the various bit rates at the default delay setting is according to the following graph 97 TECHNICAL 0118 931 2233 49 2 048Mbps Wireless Modem BER improvement at various bit rates Figure 5 1 Radio BER Improvement Modem rate Mbps System gain dB Table 5 5 System Gain Maximum Receive Level 10dBm for modem rates 0 5Mbps 1Mbps 2Mbps 25dBm for modem rate of 3Mbps Recommended Receiv
28. 4 monitor interfaces on the rear panel of the 2 048Mbps Wireless Modem The local monitor allows you to access the set up parameters from an ASCII ANSI terminal or from a PC running a terminal emulation program such as the Windows Hyper Terminal or Procomm Use the following settings e Baud rate 9600 e Data bits 8 e Stop bits 1 e Parity None e Flow control None e Connector Available Com port Connect the terminal to the monitor interface of the 2 048Mbps Wireless Modem The monitor appears displaying the main menu Main Menu When the Setup and Configuration screen appears the main menu is displayed providing general status information and access to other menus 44 49 SALES 0118 965 5100 2 048Mbps Wireless Modem Master or Slave Local or Remote Normal Test or Site Survey Hardware version V 2 Master Local monitor SRevision 1 7 System is in Normal Mode Parameters Menu Counters and Tracers Menu Mode and Access Control Menu System Reset Testing Menu password required Figure 3 1 Main Menu Note Hardware version 2 includes all features of Hardware version 1 plus co location support through synchronization and RSSI test point Parameters Menu This menu enables the authorized user to set the main system parameters LIU parameters setting Line Interface Unit Parameters MCP parameters setting Management and Control Parameters Radio and Modem Parameters set
29. 5100 2 048Mbps Wireless Modem Appendix D Installing Other Types of Receive 2 1 128 128 Appendix E Pin Elit dir etra te hen bote e a Ro coder o RD 130 E1 T1 and Fractional E1 T1 Pin Connections ascensu eset asin eva feta cedens 130 LIU RS 530 Connector cosa cere echo p ended ete e hates 130 LIU D 25 to V 35 Cable Pin ASSIGFIRIBDES rhe or PR rn ode Di 131 LIU D 25 to X 21 Cable Pin ASSIQHMGINS trs 132 7 TECHNICAL 0118 931 2233 5 2 048Mbps Wireless Modem Introduction About this Manual The following summary will help you quickly locate the information you need in this User Manual This introductory chapter contains a description of the product its main features components and benefits Chapter 2 Installation and Antennas provides the basic installation guidelines lists the different antennas cables and RF accessories gives a description of the available antenna sets guides you in selecting the correct antenna or antenna set for specific applications explains how to align the antennas for optimal performance and how to synchronize two or more co located 2 048 Wireless modems units Chapter 3 Setup and Configuration explains how to access the system monitoring and configuration functions lists the statistical information the sys
30. 65 5100 24 2 048Mbps Wireless Modem X 21 Interface Data Rate 64 2048 Kbps N x 64 Type Synchronous Data RS 422 levels Connector D type 15 pins female An adapter cable connected to the 25 pins D Type connector on the RS 530 X 21 LIU Echo Canceller Fractional E1 T1 Meets ITU T recommendations G 165 and G 168 Front Panel LED Indicators General Power TEST Line Data Link Status LOS Loss of Signal T1 E1 only AIS Alarm Indication Signal T1 E1 only Data Link Activity RXD TXD Radio Rx Sync Tx Sync Connectors Antenna 2 x SMA Female Power AC Appliance Inlet or 48 VDC terminal block DTE Modular Monitor D Type 9 pins female In Out 2 x molex jack 4 pin mate with FCC 68 plugs Synchronization 103 TECHNICAL 0118 931 2233 lt gt 2 048Mbps Wireless Modem Q CTRL future RJ 45 8 pin female option RSSI Test point for DVM accuracy 20 Power 100 240 VAC or 18 72 VDC 25 W max Management Monitoring diagnostics and configuration Interface V 24 RS 232 9 pins D Type female connector Access using a locally connected ASCII terminal or remotely via dial up modem Remote unit management through the wireless link Mechanical Specifications Dimensions Standard 1U half 19 7 7 x 9 6 x 1 7 195mm x 244mm x 44mm Weight 2 2 Ib 1 Kg Environmental Specifications Operating Temperature Operating 0 55 C 32 o 1300 F Humidity 5 to 90 non condensing
31. 7 LIU Alarms In the Counters and Tracers menu type A to display the alarms of the monitored unit Message Description Correction Message Description Correction Message Description Correction Message Description Correction Input CLK to LIU is 0 Appears in a unit with V 35 RS 530 X 21 hardware that is configured in software as an 1 unit Select the correct LIU type in the LIU parameters menu LOS all zeros signal Indicates an all zeros signal to an 1 1 or a Fractional E1 T1 LIU This may be caused by a cable problem or because the end equipment is not connected to the unit Check the cable and or the connection of the end equipment to the unit AIS Indicates an all ones signal to an 1 1 or a Fractional 1 1 LIU This may be caused by a problem in the cable which connects the end equipment Check the cable which connects the end equipment No Input CLK to LIU clock Set End Equipment to source Appears in V 35 RS 530 X 21 units that are configured as DCE EXTERNAL CLOCK or as DTE indicates that the end equipment does not supply a clock to the LIU Configure the end equipment to supply the clock and connect it to the modem 77 TECHNICAL 0118 931 2233 lt gt Message Description Correction Message Description Correction Message Description Correction Message Description Message Description Correction
32. EV RO E 84 Troubleshooting Droblents drg sOltOTIS uiae des ecoute odia st 84 Problem 1 Two units are connected together but there is no radio link between them 84 Problem 2 Poor performance of radio 85 Problem 3 There is a radio link but LUI does not operate or is not synchronised 86 Problem 4 There is a radio link and the LIU Operates but the equipment does not GVM OZ aes geet E orc tuta tau 87 Problem 5 The radio link is stable but the error rate on the end equipment is Unacceptable fp tan dor avari err terra tie 88 Problem 6 The radio link is fine but the voice quality data rate is poor or the end equipment loses synchronization from time to 89 Problem 8 One or more links function properly are synchronised but when adding another link performance degrades eerren 92 5 TECHNICAL 0118 931 2233 5 2 048Mbps Wireless Modem Problem 9 The fractional E1 T1 link is synchronised but one or some systems that are connected to the end equipment i e telephone fax voicemail is not working DIO DENY sca EE 93 Techical aaa 95 Wireless Modem Technical Specifications eere 95 WOME IG aiuta DE RR que Rr bea og RUE 95 Radio emunt metre teh ft
33. If channels that should not be used are included enter the numbers of the channels that should be removed from the list Enter numbers between 1 to 31 separated by a comma Use two dots to indicate a range e g 2 5 7 means remove channels 2 5 6 and 7 To Configure Channels with Echo Cancellation Fractional E1 1 From the Fractional El Parameters menu type 8 to select the Add Remove Echo Cancellation on voice channels menu 2 From the Add Remove Echo Cancellation on voice channels menu type 1 to select the Set Add Channels menu 3 View the current list of channels with echo cancellation If channels that should be used with echo cancellation are not included enter the numbers of the channels that should be added Enter numbers between 1 to 31 separated by a comma Use two dots to indicate a range e g 1 8 11 14 means set echo cancellation to channels 1 8 9 10 11 and 14 Note In systems with Channel Associated Signalling CAS echo cancellation should not be set on channel 16 which is used for signalling 20 49 SALES 0118 965 5100 24 2 048Mbps Wireless Modem 4 From the Add Remove Echo Cancellation on voice channels menu type 2 to select the Clear Remove Channels menu 5 View the current list of channel with echo cancellation If channels in which echo cancellation should not be used are included enter the numbers of the channels that should be removed from the list Enter numbers between 1 to 31 separated by
34. If lamp fails to light check the power cable and connectors Test System self test Green LED should light all the time after power supply is connected If LED fails to light disconnect from power supply wait a few moments and try again If self test fails repeatedly contact Black Box technical support The TEST LED will blink upon identification of any alarm condition Refer to pages 77 82 for more information on alarm conditions Line Loss Of Signal E1 T1 and Fractional E1 T1 only Red LED lights when the modem loses line signal from WAN or DTE The main reason for loss of signal is a physical cable problem 1 Check the cables and connectors linking the unit with the WAN or the DTE 2 If these are OK check WAN or DTE functionality 15 TECHNICAL 0118 931 2233 4e 2 048Mbps Wireless Modem AIS Alarm Indication Signal E1 T1 and Fractional E1 T1 only Red LED lights when WAN or DTE control frame is received by the modem indicating that information that should be sent by the modem is not received by the DTE or the WAN The main reason for alarm indication signal is a physical cable problem 1 Check the cables and connectors linking the unit with the WAN or the DTE 2 If these are OK check WAN or DTE functionality RXD and TXD Orange RXD and TXD LEDs indicate that data present at the LIU connector is sent over the RF link to the remote LIU connector this does not indicate that end equipment exists or is synchr
35. LEE E E auo sgg ae gu Ht yo RF psg guo s HHH SB RH Agee gus s RE wg AHH mss H RE BRR BHURRBHRERHR 242222 22224222 ss Hit any key gt Figure 3 10 Errors Per Channel Graph 73 TECHNICAL 0118 931 2233 4e 2 048Mbps Wireless Modem Each column represents the percent of RADIO ERROR BUFFERS in each of the RF channels out of all the buffers that were transmitted on the channel A sign at the bottom represents a channel that is not included in the set of hopping frequencies On top of the graph information is provided on the channel with the highest error rate Max errors in percentage and the number of the channel with the maximum error rate The distribution of errors by the channel graph is useful to identify problematic channels with an unacceptable error rate Under normal conditions the error rate should be similar for all channels and recommended to be no more than about 296 Clear System Counters and Channel Tracer In the Counters and Tracers menu type 4 to clear the Systems Counters and the information accumulated in the Channel Tracer graphs The System Counters and Channel Tracer graphs display information accumulated since the last time they were cleared Time Tracer Errors versus Time In the Counters and Tracers menu type 5 to display the Time Tracer errors over time graph Max error
36. RC6 bits may be used by the receiving equipment to determine correct reception of all bits sent to it There are two common CRC6 procedures e n accordance with the ANSI AT amp T and ITU T standards In accordance with the Japanese JT 704 standard Set CRC Usage in accordance with the CRC6 procedure used by the connected end equipment Bit 7 Zero Suppression When using AMI line code the occurrence of too many successive zeros should be avoided to ensure accurate reconstruction of the data Some devices use a method known as zero suppression This method forces bit 7 of each 8 bit channel to 1 if all the bits in the original channel are zero If the connected end equipment uses the bit 7 zero suppression method this parameter should be set to 1 Force bit 7 zero suppression Otherwise see also Pulse Density Enforcer below it should be set to 0 no suppression If the line code used is B8ZS it must be set to 0 no suppression When transmitting data non voice it must be set to 0 no suppression unless the data is preconditioned not to send all zero bytes Pulse Density Enforcer When using AMI line code the occurrence of too many successive zeros should be avoided to ensure accurate reconstruction of the data Some devices use a method known as Pulse Density Enforcer according to ANSI T1 403 This method checks the number of ones and upon detecting too many successive zeros it forces certain bit s to one If the connected e
37. Radio LEDs are both lit it is an indication that the radio link is synchronized and when the Line RXD and TXD LEDs are lit it is an indication that the line to the DTE is synchronized 36 5 SALES 0118 965 5100 2 048Mbps Wireless Modem To activate the front panel LEDs 1 If the LEDs are not lit loosen the screws on the U bolt that fasten the Rx and Tx antennas to the last or the bolts on the wall mount and slowly move the antennas up and down elevation and from side to side azimuth until all four LEDs are lit Radio RX Sync and TX Sync Line RXD and TXD 2 Tighten the screws on the U bolt or the bolts on the wall mount Step 3 Fine tuning the adjustment of the antenna using RSSI Measurement The RSSI Receive Signal Strength Indicator enables to fine tune antenna alignment by supplying a measured value of the signal received by the unit Maximizing the RSSI value optimises performance The RSSI value can be viewed using the local monitor as described on page 72 The RSSI per channel feature displays in graphic format the strength of the received signal on each of the RF channels in use The modem also enables to collect a measurement of the average RSSI using a DVM digital voltmeter connected to the RSSI test pin in the rear panel of the unit The measured DC voltage is relative to the RSSI value as indicated in Figure 2 15 The 2 048Mbps Wireless Modem enables to perform RSSI measurement using a DVM also near the Rece
38. The access rights revert from authorized technician to user when any incorrect password is given in this or the next option Note User access rights enable access to Set up and Configuration functions Only Site Survey Mode The Site Survey test gives you an indication of the electromagnetic environment It can also be used prior to final installation in order to determine the best location for the equipment and antennas During the Site Survey test the 2 048Mbps Wireless Modem does not transmit and a link cannot be established Only one unit is required for Site Survey The Site Survey graph presents the history of the received signal s strength on each of the frequency channels only channels included in the selected hopping set are monitored and it performs a function similar to a spectrum analyser Received Interference Level Spectrum Analysis Based on the results you can search for better location or try to identify and remove the source of the interfering signals 82 SALES 0118 965 5100 24 2 048Mbps Wireless Modem Max rani 94 dEn Min caai 103 dEm rn 4 x 95 g x g g g amp g g g t8 g d ft 7 fs Sh S dug HF fr f TF F PRHO fii ESSI FF 208 x 0050 s gs3s63sx2639 s usrs ssi e ssres 3 Pesce be sist sie sacibie R gcrecigrntygreuqd Ss 4 Sf ee ee ee egy Figure 3 14 Site Survey Graph The minimum measurable RSSI of the system is approximately 103 dBm An RSSI leve
39. Type 4 to clear the System Counters and the Channel Tracer Type 5 to display Time Tracer errors versus time Type 6 to display maximum number of consecutive traced errors versus time Type 7 to set the Time Tracer resolution Type 8 to display the Reset Counter Type 9 to clear the Reset Counter Type A to display Alarms 69 TECHNICAL 0118 931 2233 lt gt 2 048Mbps Wireless Modem System Counters In the Counters and Tracers menu type 1 to display the System Counters TX BUFFERS RX BUFFERS ERROR BUFFERS BUFFER ERROR RATE NOT ACK BUFFERS TX BUFFERS RX BUFFERS ERROR BUFFERS NO RX BUFFERS BUFFER ERROR 00e 00 0321 CO ORN O 00e 00 IU IU IU U DI DI DI DI DI D t key gt Figure 3 7 2 048Mbps Wireless Modems Counter display The System Counters give you statistical information on the quality of communications with the terminal equipment LIU side and with the other end of the wireless link Radio side The data stream received transmitted from to the 2 048Mbps Wireless Modems is divided internally in the 2 048Mbps Wireless Modem into buffers and the statistics are based on these buffers The data is accumulated continuously until the System Counters are cleared Thus the numbers represent the accumulated results since the last time the counters were Cleared The 2 048Mbps Wireless Modem uses an Automatic Retra
40. al Also referred to as all zeros signal indicates that no signal is received from the data equipment AIS Alarm Indication Signal No signal is received by the connected end equipment Remote Frame Alarm Indication from the connected end equipment that it is not able to synchronize with the modem Frame slip Indicates lack of compatibility between the clocks of the modem and the end equipment 50 49 SALES 0118 965 5100 2 048Mbps Wireless Modem Remote BreezeLINK Unsync Indicates a temporary incidence of a very noisy radio channel Repeated occurrences indicate either a very noisy radio channel or a hardware problem e g clocks with excessive jitter or a problem related to configuration of clocks Too many BPV CV Too many Bipolar code violations indicates selection of Bipolar AMI line code in the modem when the end equipment uses HDB3 line code When an alarm is detected a note appears at the bottom of the display Note An alarm has been activated and the message ALARM EXISTS is displayed on the menu header see Figure 3 1 In addition the TEST LED blinks T1 Parameters Menu Menu Action Options Notes Item l Line View current 0 AMI Coding selection B8ZS default Enter 0 or to change View current DSX 1 DSU line length of 0 133 feet selection Enter default one digit from 0 DSX 1 DSU line length of 133 266 feet to 5 2 DSX 1 DSU line length of 266 399 feet 3 DSX 1 DSU line leng
41. al installation with a 20 Meter Heliax cable the use of an LNA 10 results in an improvement of 5dB to the total link margin in comparison to the same installation when not using the LNA 10 1 Connect the LNA 10 RF input directly to the output of the receiving antenna 2 Attach the LNA 10 RF output directly to the RF cable going down to the Rx connector on the 2 048Mbps Wireless Modem unit 3 Connect the RG 59 coaxial cable between the CONV connector of the power inserter and the Signal and Power out connector on the LNA 10 30 4e SALES 0118 965 5100 2 048Mbps Wireless Modem Receive RCV Antenna Figure 2 9 LNA 10 Cable Connection Diagram The power supply PS and Power Inserter are supplied with the LNA 10 The RG 59 coaxial cable with F type connector is not supplied and must be purchased separately Note See Appendix C for installing other types of receive amplifiers AL 1 Lightning Arrestor The AL 1 Lightning Arrestor is used to protect transmitters and receivers from transients originating from lightning or EMP The AL 1 is gas tube based and is not radioactive The gas discharge tube can sustain several transients if the time period between transients is sufficient to allow the tube to cool down See page 106 for further information Installing the AL 1 Lightning Arrestor 1 Connect the antenna to the AL 1 input as shown in Figure 2 15 2 Connect the AL 1 ground connector to the building s safety
42. ar Panel 9 TECHNICAL 0118 931 2233 4e 2 048Mbps Wireless Modem Main Features of the 2 048Mbps Wireless Modem Wireless Connectivity The 2 048Mbps Wireless Modem provides a wireless data link The DSP modem with adaptive equalization provides robust and reliable communication overcoming problems caused by fading or interfering signals Seamless Communication A full duplex system with independent transmitting and receiving modems and RF channels allows seamless two way communication Versatility The 2 048Mbps Wireless Modem can transfer any kind of data voice or video transmissions and can be operated together with most types of bridges routers and multiplexers The system supports the 1 1 communication standards and with the appropriate Line Interface Unit is compatible with any other communication link standards and operates transparently to data protocols Fractional 1 1 applications with voice channels are supported by a special line interface unit incorporating a built in echo canceller for improved voice quality Error Free Data Transfer Spread Spectrum Frequency Hopping gives reliable low BER Bit Error Rate data transfer and protection against interference Error correction is provided by ARQ Automatic Retransmission Queuing High Speed Communication High data rates enable fast time saving communication The 2 048Mbps Wireless Modem supports full rate of 2048 Kbps full rate of 1544 Kbps and transp
43. arent synchronous speeds of n x 64 Kbps Easy Control and Monitoring Eight LED indicators are provided for system status monitoring Simple easy to use management menus provide configuration and diagnostics for both the local and remote unit via an RS 232 V 24 connection For further information on LED indicators see pagel5 Remote Management 2 048Mbps Wireless Modem enables management of each unit from the other unit through the Radio link 10 49 SALES 0118 965 5100 2 048Mbps Wireless Modem RSSI Antenna reception can be fine tuned by checking the strength of the received signal To check signal strength connect a Digital Voltmeter DVM to the Receive Signal Strength Indicator RSSI test point on the rear panel of the2 048Mbps Wireless Modem Co location This option enables to simultaneously establish a number of co located links in star or parallel topology when they are synchronized in frequency via a synchronizing cable Using this option may be restricted by regulation in certain countries Choice of Antennas Cables and RF Accessories Several optional types of antennas cables and RF accessories are provided allowing selection of the RF components best suited for different applications 2 048Mbps Wireless Modem Benefits Provides a cost effective alternative to leased telephone cable service e Saves the expense of costly wire or fibre optic cable installation Connects off shore installations and sites separated
44. ay arise either single link problems or co located link problems The possible problems are e Two units are connected but there is no radio link between them Poor performance of a radio link e There is a radio link but the LIU does not operate or is not synchronized e There is a radio link and the LIU operates but the end equipment does not synchronize e The radio link is stable but the error rate on the end equipment is unacceptable The radio link is fine but the voice quality data rate is poor or the end equipment loses synchronization from time to time e The system resets with an error message e One or more links function are synchronized but when adding another link performance degrades The Fractional E1 T1 link is synchronized but one or some systems that are connected to the end equipment i e telephone fax voice mail is not working properly This chapter helps you to identify the source of the problems and provides a recommended solution Use this chapter as guidelines to troubleshooting but remember that at any given site more than one of these problems can arise and in different variations Troubleshooting problems and solutions Problem 1 Two units are connected together but there is no radio link between them Probable cause Wrong unit configuration RF installation problems 84 SALES 0118 965 5100 2 048Mbps Wireless Modem To check the configuration of each unit 1 F
45. bps Wireless Modem is configured as Master DTE except in applications with an X 21 interface e 2 048Mbps Wireless Modem B is configured as Slave DCE internal clock RS 530 V 35 X 21 Back to Back Configuration Siave DCE Master DTE Slave DCE Master DCE interna Clock toros Interna Clock Internal Clock Direct Cable Network ID 1 Network 10 2 Hopping Seq 1 Hopping Seq 2 Figure A 4 RS 530 V 35 X 21 Back to Back Configuration Setting the Jumper Configuration for the LIU V 35 and LIU RS 530 X 21 Boards You can access the jumpers by opening the two screws of the rear panel and carefully sliding out the boards The jumpers are located at the upper side of the LIU board close to the D 25 connector Disconnect all cables including the power cable from the unit before opening The LIU configuration is set by both software and hardware Software setting is done in the DCE DTE menu in the LIU parameters sub menu of the Parametersmenu Hardware setting is done by jumpers on the LIU V 35 or the LIU RS 530 X 21 circuit board The following settings are available 110 4e SALES 0118 965 5100 2 048Mbps Wireless Modem DCE Options 1 DCE internal clock Supported by V 35 RS 530 and X 21 123 o cn PC0442 Moss Figure A 5 DCE Internal Clock Jumpers 4 E a 4 E 4 4 M Jumper configuration 2 DCE external clock Supported by V 35 and RS 53
46. d to use the Fractional E1 T1 LIU in applications with voice channels and to take advantage of the built in echo canceller to achieve an improved voice quality The Fractional 1 1 LIU may also be used in applications without voice channels However the cost of the Fractional E1 T1 LIU is higher than that of the regular E1 T1 LIU In some cases the use of the Fractional E1 T1 LIU in non voice fractional E1 T1 applications should be preferred as it may improve the quality of the link and increase the achievable range An El link is comprised of 32 channels of 64 Kbps each A T1 link is comprised of 24 channels In Fractional 1 1 applications any number of links up to the maximum of 32 1 or 24 may be used for transmission of a data fax or voice channels The data stream of a regular fractional E1 T1 link is at the full rate of 2048 E1 1544 T1 Kbps When the 2 018Mbps Wireless Modem is used it transmits only the channels that are in actual use typically resulting in a lower link data rate For example in a fractional application with 4 channels in use the effective data rate of the modem is 320Kbps 4 data channels plus 1 channel for frame alignment signals TSO and the default modem rate is just 0 5Mbps vs modem rate of 3Mbps required for a regular El link The distance achievable with a modem rate of 0 5Mbps is approximately 4 to 5 times the distance achievable with a modem rate of 3Mbps Thus a significant improv
47. database All changes will take effect 1 Do not download database yet Reset the remote unit for the changes to take effect Copy database and download to remote unit Typically this is the simplest fastest and safest procedure for changing parameters in the remote unit assuming that parameters of the local and remote units are the same The remote unit will automatically adapt its Master Slave parameter if the parameter in the database is Master the remote unit will change its setting to Slave and vice versa When selecting 5 in the REMOTE Parameters Menu the Copy local database and download to remote unit selection menu appears 0 Copy database and download to remote unit All changes will take effect 1 Do not copy database and download to remote unit yet Reset the remote unit for the changes to take effect Load Default Values Menu The Load Default Values menu gives you access to the following options e Cancel Operation e Load Values 67 TECHNICAL 0118 931 2233 lt gt 2 048Mbps Wireless Modem 1 Load default values Enter digit 0 Cancel operation 1 Load values Loads the factory default values for all Parameters menus Change takes effect after system Reset Table 3 13 Load Default Values Menu options Note The Hopping Standard and LIU type parameters are fixed and are not affected by this operation Parameter Info Screen Option 6 in the Parameters menu opens the Info Screen wh
48. dem Separate DSP Transmit and Receive Modems The physical layer connection is established by two DSP Digital Signal Processing modems Each modem is dedicated to one direction of the link transmit or receive Adaptive Equalization The time dispersion of the transmitted signal caused by multipath propagation causes inter symbol interference ISI To compensate for the ISI an adaptive equalizer is included in the modem 13 TECHNICAL 0118 931 2233 4e 2 048Mbps Wireless Modem ARQ Based Error Correction The 2 048Mbps Wireless Modem uses an Automatic Retransmission Queuing ARQ mechanism to detect errors in received data and to request retransmission The use of ARQ results in a significant improvement in performance overcoming problems caused by interfering signals Radio Full Duplex The radio uses full duplex communication transmitting and receiving simultaneously Spread spectrum Frequency Hopping Using Spread Spectrum Frequency Hopping a technique that changes the frequency of the carrier over a hundred times per second the radio hops in a pre defined sequence through up to 79 channels in the 2 4 2 5 GHz band The number of channels and the frequency band are determined by the specific model and relevant local regulations Frequency hopping provides reliable communication at low bit error rates as well as increased bandwidth and interference avoidance Output Power Radio power output is 16dBm min at an
49. ding selected B8ZS AMI matches the setting of the end equipment e Verify that the framing method configuration ESF D4 matches the setting of the end equipment Check correct connection of the cable connecting the unit to the end equipment Verify that the LOS LED is not On e Verify that the pulse shape setting matches the actual length of the cable connecting the unit to the end equipment Problem 4 There is a radio link and the LIU Operates but the equipment does not synchronize Probable cause Problem with the cable connecting the unit and the end equipment To check the cable connecting the unit and the end equipment 1 From the Parameters menu select Parameters Info Screen 87 TECHNICAL 0118 931 2233 5 2 048Mbps Wireless Modem 2 For X 21 RS 530 and V 35 verify that The DCE Internal clock or DCE External clock or DTE setting on each unit is matched by the DCE DTE configuration of the end equipment The clock rate setting of the end equipment matches the clock rate setting of the unit 3 For El T1 Fractional E1 Fractional T1 verify that e The line coding scheme used by the 2 048Mbps Wireless Modem and the end equipment are the same For El or Fractional E1 verify that the Balanced Unbalanced configuration of the LIU set by the jumpers on the LIU board matches that of the end equipment Problem 5 The radio link is stable but the error rate on the end equipment is unacceptable
50. e 20 C to 50 C Dimensions 60mm x 35mm x 25mm 2 3 x 1 3 x 1 Operating Environment LNA 10 outdoor indoor Power Supply indoor Power Inserter indoor Technical specifications are listed as provided by the manufacturer AL 1 Technical Specifications Turn on voltage 75 Insertion loss 0 3dB typical DC path from input to output existing Operating Temperature 55 C to 70 Dimensions 67 5mm x 25mm x 25mm 2 7 x 1 x 1 Connectors Antenna Port N type Female Equipment Port N type Female 106 49 SALES 0118 965 5100 24 2 048Mbps Wireless Modem Operating Environment Indoor Outdoor Grounding One of the female type N connectors is mounted directly through a hole in the shelter wall and held in place with a lockwasher and nut 107 TECHNICAL 0118 931 2233 4e 2 048Mbps Wireless Modem Appendix A V 35 RS 530 X 21 Applications DCE DTE Configuration The following is a description of the possible configurations when connecting V 35 RS 530 X 21 end equipment to the 2 048Mbps Wireless Modem The configurations described are applicable to software version 1 5 and up with a V 35 RS 530 X 21 LIU equipped with jumpers for setting the mode of operation V 35 RS 530 X 21 Standards These standards define the operation of a communications channel consisting of end equipment units connected to the communications channel by a modem The standards define DATA circuits and LOCK circuits to time th
51. e 3 4 The Modem initialisation string is sent after each modem reset via the monitor port The initialisation string is a set of commands called commands which configure the dial up modem s operation 1 Dial up ud Modems 2048Mbps Wireless Modems Disp Figure 3 4 Central Site Management Using a Dial up Modem The initialisation string can configure the modem for several operational modes such as auto answer for incoming calls or dialling a certain phone number all according to the modem specification 62 49 SALES 0118 965 5100 2 048Mbps Wireless Modem The following commands are set as a default initialisation string in the modem AT amp f n 6699 The meaning of this string is initialising default configuration means new line An example for a more informative initialisation string is AT amp nATSO 1 nAT amp K0 nATS23 3B nATQ1 n This default string is consistent with a few modem types for example MICROCOM desktop The meaning of the above string is as follows e AT amp T Initialise default configuration e ATSO 1 Auto Answer after one ring e AT amp KO Disable flow control e ATS23 3B Rate initialisation set to 9600bps e ATQI No messages are output It is possible to change the modem initialisation string to configure it to specific modes and to adopt it to different modems most AT commands are generic but some vary from modem to modem In order to d
52. e Level 10dB above sensitivity threshold for an adequate fade margin Adjacent Channel Rejection Adjacent channel rejection indicates the difference in dB between the power level of an interfering RF signal and the power level of a desired signal where the interfering signal 98 4e SALES 0118 965 5100 2 048Mbps Wireless Modem causes a degradation of 3db in the sensitivity of the receiver The graph below displays the adjacent channel rejection of the modem receiver as a function of the frequency separation Delta F in MHz between the frequency of the interfering signal and the desired signal 70 60 5 50 5 40 9 o g 2 p 10 2 0 9 10 20 30 40 Figure 5 2 Adjacent Channel Rejection Separate between TX and RX frequencies Minimum 12MHz for sensitivity degradation of 1dB 99 TECHNICAL 0118 931 2233 4e 2 048Mbps Wireless Modem Maximum Number of Links to Synchronize Country Standard Max number of Links to synchronize USA FCC Europe ETSI Table 5 6 Maximum Number of Synchronized Links Filter Curves Filter curves for the transmitter and receiver are shown in the graph below Note that the receiver contains two cascaded filters of this type Jog M AQ amp 3 2467 JE i i STAAT 006 005 660 kHz 2 Zo 566 O00 Figure 5 3 Filter Curves 100 lt gt SALES 0118 965 5100 2 048Mbps Wireles
53. e frequency channels It is recommended to have RADIO BUFFERS ERROR RATE under 2 2e 2 High error rate indicates bad reception conditions High error rate combined with a relatively high number of not received buffers indicates weak radio signal or existence of an interfering signal source The Error correction algorithm graph indicates the expected Bit Error Rate after error correction of the Wireless Modem versus RADIO BUFFERS ERROR RATE See the description of the Error correction algorithm in the Technical Specification Channel Tracer RSSI per channel In the Counters and Tracers menu type 2 to view the Channel Tracer RSSI per channel graph Max rssi 45 dim Min resi 43 dim PPAR A a ey Abe Nassshbgsg E Ha ae Bae eee Eid PRA a eo PRAHA SRR AR oe eee A A ae a nae Aa Ae A SHPO EAHA A A ee ee Pe ee ee ee en ee ee et eee Hit any key gt Figure 3 9 RSSI Per Channel Graph 72 49 SALES 0118 965 5100 2 048Mbps Wireless Modem The RSSI per channel test displays in graphic format the strength of the received signal on each of the RF channels used by the 2 048Mbps Wireless Modem Each vertical column represents the level of the received RF signal on one of the channels Available channels are from 0 to 100 0 representing 2 400GHZ and 10
54. e slips occur OK LIU Clock No alarms Drift Reversed LIU clock No alarms Synchronized drift but E1 T1 frame slips occur Reversed LIU clock LOS can be Not LOS can be indicated Table B 1 E1 T1 Connections Wrong does not work Wrong and dangerous since it seems right and the frame slips can be rare Wrong and dangerous as above Wrong and does not work In addition to the faults mentioned in the above table there is a possibility of a cable being disconnected or shortened Both these situations usually result in LOS indication either by the modem or by the end equipment E1 T1 LIU Jumper Settings The LIU default setting is El balanced or balanced unless an El unbalanced configuration is specified The following diagrams show the jumper configurations on the LIU board for each configuration option TECHNICAL 0118 931 2233 4e 115 2 048Mbps Wireless Modem E1 T1 LIU Lins Interface Unit Figure B 2 EI TI Board Location To access the jumpers 1 Disconnect all cables including the power cable from the unit 2 Loosen and remove the two screws on the rear panel Carefully slide out the boards The jumpers are located at the bottom side of the LIU board shown in Figure B 3 3 Turn the boards over loosen and remove the three screws connecting the LIU board to the main board 4 Unscrew and remove the nuts and the spring washers from the Tx and Rx c
55. ear Panel RS 530 X 21 LIU and V 35 LIU V 35 The rear panel connection is a D Type 25 pins female connector the same as the RS 530 connector see Figure 1 4 An additional cable plugs into this connector and comprises the D Type 25 pins male connector on one end and a 34 pins female Winchester type V 35 connector on the other end X 21 The rear panel connection is a D Type 25 pins female connector the same as the RS 530 connector See Figure 1 4 An additional cable plugs into this connector and comprises the D Type 25 pins male connector on one end and a D Type 15 pins female X 21 connector on the other end 12 49 SALES 0118 965 5100 2 048Mbps Wireless Modem E1 The rear panel connector module consists of one E1 CEPT 1 balanced RJ 45 connector and two unbalanced 2 x BNC connectors Fractional E1 with Echo Cancellation The rear panel connector module consists of one E1 CEPT 1 balanced RJ 45 connector and two unbalanced 2 x BNC connectors Figure 1 5 2 048Mbps Wireless Modem Rear Panel E1 LIU and Fractional LIU T1 The rear panel connector module consists of one T1 DSX 1 balanced RJ 45 connector Fractional T1 With Echo Cancellation The rear panel connector module consists of one T1 DSX 1 balanced RJ 45 connector Figure 1 6 2 048Mbps Wireless Modem Rear Panel 1 LIU and Fractional T1 LIU Refer to Appendix E for a description of the E1 T1 and Fractional E1 T1 pin assignments Mo
56. eception periods e From the Counters and Tracers menu select Set Time Tracer resolution to view the Time Tracer time resolution Change the resolution to zoom in or zoom out in order to locate and understand the error bursts 89 TECHNICAL 0118 931 2233 lt gt 2 048Mbps Wireless Modem Problem 7 The system resets with an error message Use the following table to determine the source of the error messages 90 49 SALES 0118 965 5100 LIU SCC Tx Error LIU SCC Rx Error PCM SCC Tx Error PCM SCC Rx Error PCM master doesn t receive PCM slave doesn t receive ne Tx counter increment no counters increment 2 048Mbps Wireless Modem Description The unit at the remote site fails to synchronize its hopping sequence with the local unit and therefore both units will reset This usually happens because of poor RF ink conditions Internal error Usually indicates HW or configuration problem Internal error Usually indicates HW or configuration problem Internal error Usually indicates HW or configuration problem Internal error Usually indicates a HW or configuration problem No reception due to poor RF link conditions or non consistent definitions of parameters on both sides of the link No reception due to poor RF link conditions or noa consistent definitions of paramesers on both sides of the link Poor RF link conditions caused by too many consecutive f
57. ected in the modem matches the capabilities of the fax equipment Fax machines and some protocols used by specific PBX auxiliary systems Voice mail auto attendant etc might be highly sensitive to errors It is recommended to achieve a good link with a LIU BUFFER ERROR RATE of 10 5 or better Fax machines and some protocols used by specific PBX auxiliary systems Voice mail auto attendant etc might be highly sensitive to link delay It is recommended to use a one way delay that does not exceed 1 second 127 TECHNICAL 0118 931 2233 lt gt 2 048Mbps Wireless Modem Appendix D Installing Other Types of Receive Amplifiers General The 2 048Mbps Wireless Modem supports other types of Receive Amplifiers which are not supplied by Black Box Following are some tips regarding installation of different types of Receive Amplifiers The installation of other types of Receive Amplifiers is usually similar to the installation of the LNA 10 2 048Mbps Wireless Modem can be set to provide 12 VDC power via the Receive RF cable There are two ways to supply 12 VDC to the receive amplifier e Separate DC input e DC input through the RF cable To separate DC input 1 Connect the RF Power Cable to the Bias T unit 2 Connect RF Output from the Bias T unit to RF output in the Receive Amplifier 3 Connect DC Output from the Bias T unit to DC input in the Receive Amplifier 2 048Mbps Wireless Modem Figure D 1 Separate DC inp
58. em The end equipment is normally called DTE and the modem is normally called DCE A DTE connects to a DCE DTE or DCE assignments define the direction of the DATA CLOCK and CONTROL circuits supported by the standard Table 1 describes the possible configurations DTE name gt gt Normal lt TX CLOCK RX CLOCK TX DATA RX DATA EXT CLOCK RX CLOCK Table A 1 Possible DTE DCE Configurations Configuration Options The 2 048 Mbps Wireless modem can be configured either as a DTE or as a DCE The configuration is set by jumpers on the LIU board and through theRS 232 monitor It is important to note that modem assumes that the clock frequency on both sides of the link is exactly the same therefore the clock frequency can be forced on the Master side of the link only Possible configurations are described in Table A 2 108 lt gt SALES 0118 965 5100 2 048Mbps Wireless Modem Typical 2 048Mbps 2 048Mbps 2 048Mbps Application Wireless Modem Wireless Modem Wireless Modem v 35 RS 530 21 un eu Setting Setting Setting Setting Setting Setting Standard Monitor DCE DCE DCE DCE DCE DCE Configuration Internal Internal Internal Internal Internal internal Clock Clock Clock Clock Clock A 5 A 5 A 5 A 5 A 5 Synchronize Monitor DCE DCE DCE DTE DCE to Network External Internal intemal Clock Clock Clock See Fig See Fig A 8 A 5 Connect Monitor DCE DTE DCE TX and RX 1o a
59. ement in achievable distance may be available through the use of the Fractional E1 T1 LIU compared with performance achievable with the regular E1 T1 LIU 120 49 SALES 0118 965 5100 2 048Mbps Wireless Modem The following table provide details on effective data rate and default modem rate for Fractional E1 T1 applications In general effective data rate for N used channels is 3 1 x 64 Kbps For example if the user needs 8 channels the modem will effectively transmit a data rate of 8 1 64 576Kbps In fractional T1 applications the modem will add a full 64Kbps channel for signalling The maximal data rate of the modem for a 24 channel T1 is therefore 1600Kbps vs the 1544Kbps of a regular T1 In Fractional Elusing Common Channel Signalling CAS as is also the case with a regular using CAS channel 0 is always used for frame alignment signals and a maximum of 31 channels is available to the user with a maximum data rate of 2048Kbps Number of Number of Wireless Modem s Default Channels available effective channels data rate Modem to the user transmitted by Kbps rate the Wireless Modem to 4 El or TI 128 to 320 0 5Mbps Table C 1 Channels Characteristic The default modem rate for both regular and regular El is 3Mbps Therefore an improvement in achievable distance is available through using the Fractional E1 T1 LIU for any number of channels up to 22 Fractional EI T1 Connections and Common Problems L
60. ess Modem he internal data queues have overflowed This might happen in Ei T units because of failure to loop back the clock at the end equipment on the slave side The unit will reset This message is printed when DIP SW2 is set by the user in order to force reloading of default values Reset DIP SW2 to eliminate the message This message indicates HW failure or too many non driver failure powered units connected to the synchronization connector and loading it MASTER Cannot collect enough consecutive non errored PCM buffers or Slave Cannot collect enough consecutive non errored PCM buffers his message can result from poor RF link conditions or from a mismatch between the HOPPING SEQUENCE setting on the two sides of the link Slave cannot lock DPLL This message can result from poor RF link conditions or from a mismatch between the CLOCK RATE RS 530 V 35 X 21 or Channels Fractional setting on the two sides of the link The unit will reset after this message ReSync LIU his message can result from loss of synchronization with the end equipment either by the local or the far end BreezeL INK unit It can he an indication of a physical problem in the interconnecting cable or mismatch in setting of LIU and end equipment parameters The unit will reset after this message ReSvync DPLL his message can result fram losing clock synchronization with the end equipment due to a LOS condition
61. essi ies tiit ne reversi rb roni i 46 To make selections using the Parameters menu sssrinin 46 LIU Parameters Melilla ecrit Mo resi dedi tcd tan 4 MCP Parameters MP iactu Duae n e echa ka fecha 60 Radio and Modem Parameters nitide 64 2 aou nd echt rm o haeres vo eder ra i o a eR nade dod 65 Load Default Values Me rs rece crisp Focen i ters eot ret qa resi i visa 67 Parameter MTS ROUES du Xem 68 Counters and Tracers brote datas deret dde 69 System Counte Ssnin ituri perte ioa s eva t ti ode 70 Channel Tracer RSSI perchanfiel sos th e Mol pa Fu oe GP 72 Channel Tracer Errors Chanel oto ec po 13 Clear System Counters and Channel Tracer esseere 74 Time Tracer Errors Versus TIME oid nts cit eerte tp ec a 74 Set Time Tracer Resolution sais T5 Reset COUPS ase 16 Clear Reset CODI dr poco Ara Ves RP d Feud 16 Mia EPA Tam cane ach etna Coles 71 Mode and Access Control MenU d aeidost nd e dr tan LR ve e np RS 82 Change ACCES S RIGS ei uio pME eiu ciat titt MEET a a 82 Site Survey 82 System nate 83 Troubles Galante 84 e A Dt cc Do
62. etermine the initialisation string you must obtain the user s manual of the dial up modem you plan to use and locate the correct AT commands resembling the ones in the default string above Then you must enter the new initialisation string accordingly The maximum length of the string is 50 characters For example if you wish to add to the above example a command that will cause the dial up modem to dial the phone number 1234567 using DTMF tone dialling after every reset of the modem use the following string AT amp nATSO 1 nAT amp KO nATS23 3B nATOI nNATDT 1234567 n To check that the wireless modem received your new modem string reset the wireless modem on power up you should see your string printed on the monitor To physically connect a dial up modem to the 2 048Mbps Wireless Modem use a straight RS 232 cable 9 pin male for the Wireless modem side and 25 pin male for the modem side this is the most common interface for modems This cable is NOT compatible to the monitor cable supplied with the 2 048Mbps Wireless Modem unit To activate the dial up modem first connect the RS 232 cable to the monitor interface of the Wireless Modem and then the modem and then re start the wireless modem when the modem is on Note Dial up modems and connection cables can be obtained from Black Box 63 TECHNICAL 0118 931 2233 lt gt 2 048Mbps Wireless Modem Radio and Modem Parameters Menu The Radio and Modem Parameters menu gives y
63. from 1 16 sure that each link has its own unique Network ID default is 1 If you are using synchronization of co located units number consecutively from 1 2 Master Slave Enter 0 or For EI TI equipment the Master BreezeLINK must be connected to the end equipment which is the source of the clock 0 Master 1 Slave default See Master Slave below for more information 3 Total Link Enter one digit 0 Minimum delay Delay from 0 4 1 Short delay 2 Normal delay default 3 Medium delay 4 Long delay See Total Link Delay below for more information Modem Enter up to 50 printable For more details see Modem Initialization Initialization ASCII characters String below String 5 Number of Enter up to 2 decimal digits 0 Disable Synchronization Links to from 0 to 12 Synchronize 1 Synchronize as many links as possible 2 12 Number of links to synchronize See Section 2 6 for more information Table 3 9 MCP Parameters Menu Options Master Slave In synchronous data communications systems all components of the link should operate using the same clock The Master unit provides the clock and the Slave unit reconstructs it from the data received from the master unit Total Link Delay In order to improve performance the 2 048Mbps Wireless Modem uses an Automatic Retransmission Queuing ARQ mechanism that enables to detect errors in the received data and to request retransmission of that data The ARQ
64. gher modem rate can significantly improve performance in the presence of interference Hoping Sequence Current HOPPING SEQUENCE and HOPPING STANDARD are displayed The number of available hopping sequences depends on the Hopping Standard of each country The Hopping Standard is set in the factory If several links in the same area are used without using the synchronization feature select a different hopping sequence for each pair of 2 048Mbps Wireless Modems Master and Slave units must use the same hopping sequence If co located units are synchronized the same hopping sequence should be used for all units or else the synchronized units will interfere with each other as though not synchronized the synchronization process verifies that each pair uses a sequence that is sufficiently shifted in frequency relative to sequences used by other pairs Add Remove Channels from Test Sequence Selection of this option in the RADIO and MODEM Parameters menu opens the Add Remove Channels from Test Sequence menu This menu allows you to determine the specific channels to be used when Test Sequence is used as the Hopping Standard Test Sequence should only be used as the Hopping Standard by authorized Black Box technicians Any changes to the Test Sequence channels shall have no effect when regular Hopping Standards are being used Therefore do not attempt to select this option or to modify the test sequence channels under normal conditions REMOTE
65. ground 3 Connect the antenna from the AL 1 output to the antenna input in the modem 31 TECHNICAL 0118 931 2233 4e 2 048Mbps Wireless Modem 2 048Mbps Wireless Modem Figure 2 10 AL 1 Cable Connection Diagram Cable Types Thin Cable This is a relatively thin and flexible cable However its attenuation is relatively high Impedance is 50W Outer diameter is 5mm 0 195 Thick Cable This cable 15 thicker heavier and less flexible than the thin cable However its attenuation 1s less than that of the thin cable Impedance is 50W Outer diameter is 10 8mm 0 425 Low Loss Cable This cable is thicker heavier and more expensive However its attenuation is very low Impedance is 50W Outer diameter is 12 5mm 0 5 The following table provides details on the attenuation of standard cables available from Black Box Cable Type Attenuation dB m Attenuation dB 100ft of of standard cable US cables Thin cable RG 58 1 0 dB m LMR 200 17 dB 100ft Thick cable RG 214 0 6 dB m RG 8 U9913 9 dB 100ft Low loss cable Heliax 0 15 dB m LMR 600 4 5 dB 100ft Table 2 3 Attenuation of Standard Cables 32 4e SALES 0118 965 5100 2 048Mbps Wireless Modem Professional Installers Only Antennas whether installed indoors or out are to be installed ONLY by experienced antenna installers that are familiar with local buildings and safety codes and wherever necessary are licensed by appropriate government regulato
66. he centers as Master 42 49 SALES 0118 965 5100 2 048Mbps Wireless Modem i a E i 1 Lu a 1 i i Master Modems Slave Modems Figure 2 20 Several Co located 2 048Mbps Wireless Modems in a center to center configuration Step 3 Connecting the Master units Establishing synchronization is a Hot Plug In process You can add a new link without interfering with the normal operation of the working link s provided the relevant parameters are properly set as described above e e e e e o8 Figure 2 21 Connecting Units for Synchronization Use a standard FCC 68 4 pin plug male to FCC 68 4 pin plug male telephone cable with two twisted pairs supplied by Black Box to interconnect the Master units that should be synchronized Figure 2 22 Synchronization Cable 43 TECHNICAL 0118 931 2233 49 2 048Mbps Wireless Modem Set up and Configuration Set up and Configuration Functions This section explains how to access and set the Set up and Configuration functions that are provided for the 2 048Mbps Wireless Modem The main parameters to set are e Line interface unit set up parameters Management control parameters Modem set up parameters Radio set up parameters Accessing the Set up and Configuration Functions You can access the Set up and Configuration functions by connecting a terminal to the RS232 V 2
67. he Master Slave mode and the Number of Links to synchronize according to these guidelines e Configure all units connected by the synchronization cable as Master Configure the units on the other side of the link as Slave e All units should have the same Modem rate Hopping standard Hopping sequence and Number of links to synchronize It is not possible to synchronize two 2 048Mbps Wireless Modems that have different modem rates 41 TECHNICAL 0118 931 2233 49 2 048Mbps Wireless Modem e Set Number of links to synchronize to a value greater or equal to the actual number of connected links This setting is not necessary for the Slave units Note Selecting the option Synchronize as many links as possible may result in less than optimal performance Use this option only in situations where co located links are added and or deleted frequently Use the following table to determine the maximum number of links to synchronize Country Standard Max number of Links to synchronize One Antenna Duplexer Table 2 7 Maximum Number Synchronized Links e Set Network I D for the links consecutively from 1 up to the Number of links to synchronize assign a different Network I D for each link Note You can access the above parameters through the Setup and Configuration Menu in Chapter 3 e If several links are established between two centers define the units in one of t
68. he TPA 24 LL receives input power in the range of 10dBm to 0dBm The TPA 24 LH receives an input power of OdBm to 10dBm Both models then amplify the input power to a fixed output level of 24dBm 250mW The TPA 24 gets its DC power supply from the modem transmitter through the RF cable When used in compliance with ETSI regulations the TPA 24 can be connected to cables and antennas resulting in a total transmitted power of 20dBm 100 mW EIRP See page 105 for further information 27 TECHNICAL 0118 931 2233 4e 2 048Mbps Wireless Modem Installing the TPA 24 1 Install the TPA 24 as close as possible to the transmitting antenna 2 048Mbps Wireless Modem f antenna antenna mast Figure 2 6 TPA 24 Connections Diagram 2 Set the transmitter DC power supply of the 2 048Mbps Wireless Modem to 12V using the internal jumpers according to Figure 2 15 Liu Line Interface Unit Figure 2 7 Jumper Setting for 12 VDC Power Supply Via the Transmit Radio 28 4e SALES 0118 965 5100 2 048Mbps Wireless Modem Note Installations exceeding regulations set by local authorities expose the installer and the user to potential legal and financial liabilities LNA 10 Low Noise Receive Amplifier The LNA 10 is a high performance low noise preamplifier designed to enhance fringe area reception and to provide additional gain on the receive antenna especially when using long cable runs The exceptionally small size a
69. ich presents information on the current status of main parameters of either the local or the remote unit depending on local remote monitoring status Press any key to return to the Parameters menu Local Unit Parameters Unit is Master V 35 RS 530 X 21 DCE External clock NET I D is 13 Synchronize 0 links Clock Rate 64Kb S Modem Rate 0 5Mb S Link Delay 45 0mS Normal Hop Sequence 0 Hit any key Figure 3 5 Example of a Typical Info Screen 68 4e SALES 0118 965 5100 2 048Mbps Wireless Modem Counters and Tracers Menu To access the Counters and Tracers Menu e From the Main Menu type 2 The Counters and Tracers Menu appears lay System Counters lay Channel Tracer RSSI per channel lay Channel Tracer Errors per channel Clear System Counters and Channel Tracer Display Time Tracer Errors versus time Display Time Tracer Consecutive errors versus H zi Set Time Tracer resolution Display Reset Counter 9 Clear System Reset Counter System Reset A Watch Alarms 1 2 3 4 5 6 ti 7 8 Figure 3 6 Counters and Traces Menu To make selections from the Counters and Tracers Menu e At the Select Option prompt type the number that corresponds to the option you require Type 1 to display the System Counters Type 2 to display Channel Tracer RSSI Received Signal Strength Indication per channel Type 3 to display Channel Tracer errors per channel
70. ies 11 2 048Mbps Wireless Modem Benefits eee 11 2 048Mbps Wireless Modem ite i ette e EH te e red t oe tdt oss 11 eR 12 mE 14 PINON Va eai o ois todo ance 14 Front Panel ROI eant e ibn ies hax 15 LGU Re Sia 15 Taree 15 i eue E ADS Pew Chiba Aoi DR E t eh a 16 2 048Mbps Wireless Modem 17 Installation Antennas and ACCBSSOTIBS aac re rni rada cen eund 18 Package COMP ON CLUS auod centes titu tin ttt 18 Installing the 2 048Mbps Wireless Modem enne 18 f m 18 To Configure the Unitas Master eti rude eir rd resa 19 To Configure Channels Fractional ET toe Eph cd er v be ed 20 To Configure Channels with Echo Cancellation Fractional 1 20 To Configure Channels with Echo Cancellation Fractional 1 21 Antennas Cables and ACESSS OPES 22 A aate utut a hu 22 RE ACCOSSOIIBS apte Ar bere v e halb qu aoc a I
71. ine tune the antenna alignment using a DVM near the receive antenna The modems can be configured send a DC signal through the RCV antenna connector This signal is proportional to the RSSI voltage which is present at the RSSI output on the rear panel 1 Set a Bias T connection before the Receive Antenna 2 048Mbps Wireless Modem Figure 2 16 A Bias T connection for RSSI measurement near the Receive Antenna 2 Set the jumpers in the Receive module of the 2 048Mbps Wireless Modem to the RSSI position 38 4e SALES 0118 965 5100 2 048Mbps Wireless Modem LIU Line Interface Unit Figure 2 17 Jumper Setting for RSSI measurement via the Receive RF Cable 3 Connect a DVM to the DC port of the Bias T 4 Loosen the screws on the U bolt that fasten the receive antenna to the mast or the bolts on the wall mount and slowly move the antenna up and down elevation and from side to side azimuth until you get a maximum RSSI reading on the DVM 5 Tighten the screws on the U bolt or the bolts on the wall mount Note If you remove the Bias T connection after the fine tuning process you must set the Jumpers in the Receive module back to the default position NC otherwise the modem will not function In addition damage might be caused to the modem if the Receive Antenna is connected directly to the Receive cable and the jumpers are not in the default position 39 TECHNICAL 0118 931 2233 lt gt 2 048Mbps Wirele
72. ink Set up The set up includes two 2 048Mbps Wireless Modems each connected to end equipment One end equipment unit is the source of the clock and is called CO Central Office The other unit uses loopback timing i e lock on the CO clock and return it and is called PBX The modem connected to the CO is configured as Master and the other modem as Slave 2 048Mbps Tx 2 Modem 1 Figure C 1 Fractional EI TI Application 121 TECHNICAL 0118 931 2233 4e 2 048Mbps Wireless Modem Table C 2 summarizes the possible connections and the resulting behaviour Slave Connection Connection Monitor Alarm LED Status Equipment Connection Message BON connection 2 Slave Reversed None No alarms Synchronized Wrong but works Reversed LIU Clock LOS can be Wrong Drift indicated does not LOS can be work indicated OK 1 Slave OK LIU Clock No alarms Synchronized Wrong and 2 Master Drift but E1 TI dangerous frame slips since it occur scems right and the frame slips can be rare Reversed LIU clock No alarms Synchronized Wrong and drift but E1 T1 dangerous frame slips as above occur LIU clock LOS can be Not Wrong and drift indicated synchronized does not LOS can be work indicated Table C 2 Fractional El T1 Connections In addition to the faults mentioned in the above table there is a possibility of a cable being disconnected or shortened Both these situations usual
73. ion for the LIU V 35 and RS 530 X 21 Boards 110 DCE NES 111 DTE asco ca aee EU Las 112 Setting the DCE DTE Mode Parameter ds Ro ub ri esed 112 Appendix BEL 1 s e eu errat kc tet ont tn bor senten bett olv e 114 lone HI EIC 114 E1 T1 Connections and Common Problems Link Setup sse 114 EXIT ILIDAUmper seus ucciso ker 115 TAS UJDS UA DDICAUONS onsite n eti rete a quiae fuiflet idet 118 ETTIBaceto BackConnglabi rizis uode ot i GEB oid ER C eod i p UD 119 Appendix C Fractional 1 1 ra 120 120 When to Use the Fractional 1 1 rei ond de 120 Fractional EILIV Jumper Settings caisses enne deal atrii ina teet 122 1 CSU DSU ABDIICGHOnS oiii de de o oc 125 Fractional 1 1 Back to Back CONTIQUESUOTI uode ra d a dee sa ertt nre Phe dba 126 Echo Cancellation in Fractional E 1 T1 Applications een 126 Potential Problems in Fractional E1 T1 Applications enn 127 6 49 SALES 0118 965
74. is more than 500 meters it should be set to 1 long haul to compensate for losses by increasing the sensitivity of the receiver circuits by approximately 30 dB CRC4 Usage When there is a need for an enhanced error monitoring capability bit 1 of each frame is used for a Cyclic Redundancy Check 4 CRC4 procedure Bit 1 of each frame is used for CRC4 bits and other related information such as a CRC4 alignment sequence to verify identification of the CRC4 bits These bits are the result of a certain calculation performed on all the bits of the applicable sub multiframe 8 frames CRC4 bits may be used by the receiving equipment to determine proper reception of all bits sent to it If the end equipment does not use CRC4 these bits may be used for other purposes and the CRC4 Usage parameter should be set to 0 CRC4 not used If the end equipment uses CRC4 or if it is not known whether the end equipment uses CRCA this parameter should be set to 1 Auto detect CRC4 Echo Canceller disabling method Set these parameters in accordance with the echo cancellation disabling method used by the end equipment see also appendix C e Straight 2100Hz tone 0 The most popular method based on transmitting a straight 2100Hz tone Phase reversed 2100Hz tone 1 2100Hz tone with phase reversals for improved differentiation from voice signals e 2100Hz VPA tone 2 A tone in the range 2000 2100Hz Fractional E1 Alarm Buffer LOS Loss Of Sign
75. it indicating on the quality of the received signal at the other side of the link The number of buffers transmitted by the radio The number of buffers received by the radio The number of buffers with errors received by the radio before ARQ error correction including buffers that were not received at all The number of buffers that were not received at all were lost RADIO ERROR BUFFERS RATE RADIO ERRORS BUFFER divided by RADIO RX BUFFERS Table 3 14 Buffers Name and Description Under normal conditions the number of LIU TX BUFFERS is approximately 2 equal to the number of LIU RX BUFFERS Under normal conditions communication with the end equipment is not subject to any interruptions and LIU ERROR BUFFERS as well as the LIU BUFFERS ERROR RATE should be 0 Note Buffer Error Rate is different from Bit Error Rate Each buffer contains between 40 to 300 bytes depending on modem rate A buffer with errors means errors in between I to all bits in the buffer Thus the Bit Error Rate may be any number between the Buffer Error Rate and the Buffer Error Rate divided by number of bits in the buffer number of bytes times 8 71 TECHNICAL 0118 931 2233 49 2 048Mbps Wireless Modem Modem Rate Buffer Size Mbps Bytes Table 3 15 Modem Rate Vs Buffer Size A high number of RADIO NO RX BUFFERS that are relative to the number of the RADIO ERROR BUFFERS indicates the existence of problems in one or mor
76. ive Antenna This procedure simplifies the tuning process by allowing easier reading of the RSSI level while moving the antenna The RSSI measurement with DVM or monitor indicates the strength of reception In order to maximize the reception strength the receive antenna and the transmit antenna on the remote site of the link must be aligned facing each other until maximum signal quality is obtained This procedure should be repeated on the modems on both sides of the link Note The RSSI measurement indicates the strength of received signal in the 2 4 2 5 GHz band Verify that you are not aligning the antenna towards an undesired source of energy in this band See also page 82 To fine tune the antenna alignment using a DVM connected directly to the unit 1 Connect one of the DVM probes to the RSSI test pin Connect the other probe to the case chassis Figure 2 14 RSSI measurement connection diagram 37 TECHNICAL 0118 931 2233 4e 2 048Mbps Wireless Modem 2 Loosen the screws on the U bolt that fasten the receive antenna to the mast or the bolts on the wall mount and slowly move the antenna up and down elevation and from side to side azimuth until you receive a maximum RSSI reading on the DVM See Figure 2 15 3 Tighten the screws on the U bolt or the bolts on the wall mount RSSI Measurment dBm Vs V Test point voltage Input power dBm Figure 2 15 RSSI test point accuracy To f
77. l higher than 103 indicates interference The difference between the level of interference to 103 dBm affects the sensitivity in that frequency In the above graph the channel with the most interferences channel 46 has the maximum RSSI level of 94 dBm while the minimal RSSI level of the system is 103 dBm The difference is 9 dB Therefore the sensitivity of the device in that frequency decreases by approximately 9 dB To enter the Site Survey Mode select 2 in the Mode and Access Control Menu and reset the unit The system start collecting information on received interference levels in applicable channels and displays the histogram To exit the Site Survey Mode select 3 in the Mode and Access Control Menu and reset the unit Note The main menu header indicates whether you are in Site Survey Mode or in Normal Mode System Reset Menu You should reset the system after making any set up changes To access the System Reset menu In the Main menu at the Select Option prompt type 4 The System Reset menu appears Select 0 if you do not want to reset the system yet Select 1 to reset the system Note Reset the system if you made any changes in the local and or remote unit parameters Verify the proper setting for re establishing the link after thenew parameters take effect 83 TECHNICAL 0118 931 2233 4e 2 048Mbps Wireless Modem Troubleshooting Introduction In the process of establishing a link various problems m
78. ld for the modem rate in use It is preferable to keep the received power level at least 10 dB above the threshold for an adequate fade margin If the received power level is not sufficient check RF installation and increase the antenna gain use cables with lower loss or add a Transmit Power Amplifier or an LNA 7 Type 3 Display Channel Tracer errors per channel to check packet error rate A channel that has adequate RSSI but many errors indicates the presence of an interfering signal at that frequency or incorrect configuration of the unit Interference from a Direct Sequence Spread Spectrum or narrowband radio equipment usually occupies a well defined frequency range and therefore is easy to detect and avoid Interference from a Frequency Hopping radio equipment is harder to detect with the channel tracer To correct the configuration From the Parameters menu select Parameter Info Screen The following parameters must be identical on both units Hopping Standard Hopping Sequence Modem Rate Problem 3 There is a radio link but LUI does not operate or is not synchronised Probable cause Both sides of the link are not synchronized at radio level Wrong unit configuration To check synchronization at radio level 1 From the Counters and Tracers menu select Display system counters 2 Verify that both Radio TX buffers and Radio RX buffers are advancing in time To check each unit configuration 1 From the Parameters menu
79. length of 266 399 feet 3 DSX 1 DSU line length of 399 533 feet 4 DSX 1 DSU line length of 533 655 feet 5 CSU interface Sensitivity level 7 5dB 6 CSU interface Sensitivity level 154 7 CSU interface Sensitivity level 22 5dB 8 CSU interface Sensitivity level 0dB See Pulse Shape below for details 0 ANSUVAT amp T ITU T default Japanese JT 704 See CRC6 Usage below for details 53 2 048Mbps Wireless Modem View current selection Enter 0 1 to change 7 Bit 7 Zero Suppression 8 Pulse Density Enforcer Echo canceler disabling method 0 Add Remove Echo cancellation on voice channels 0 1 Set Echo cancellation on voice channels View current selection Enter 0 or to change applicable only with AMI line code View current selection Enter 0 or to change settings Enter to Set Add channels Enter 2 to Clear Remove channels View current channels with Echo cancellation Enter additional channels to have Echo cancellation after next Reset 54 4e SALES 0118 965 5100 0 No bit 7 zero suppression default 1 Force bit 7 zero suppression See Bit 7 Zero Suppression below for details 0 Disable Pulse Density Enforcer default 1 Enable Pulse Density Enforcer See Pulse Density Enforcer below for details 0 Straight 2100Hz tone default 1 Phase reversed 2100Hz tone 2 2100Hz VPA tone See Echo canceler di
80. ly result in LOS indication either by the 2 048Mbps Wireless Modem or by the end equipment Fractional E1 LIU Jumper Settings The Fractional LIU default setting is balanced unless a Fractional El unbalanced configuration is specified The following diagrams show the jumper configurations on the Fractional E1 LIU board for each configuration option 122 4e SALES 0118 965 5100 2 048Mbps Wireless Modem E1 T1 LIU Line Interface Unit Power Supply Figure C 2 Fractional El Board Location To access the jumpers 1 Disconnect all cables including the power cable from the unit 2 Loosen and remove the two screws on the rear panel Carefully slide out the boards The jumpers are located at the upper side of the LIU board shown in Figure C 3 3 Set the jumpers according to diagrams C 3 to C 4 123 TECHNICAL 0118 931 2233 4e 2 048Mbps Wireless Modem Figure C 3 Fractional 1 Unbalanced Coax connector 75 W Figure C 4 Fractional E1 balanced RJ 45 connector 120 W 124 lt gt SALES 0118 965 5100 2 048Mbps Wireless Modem Fractional T1 CSU DSU Applications In most Fractional T1 applications the 2 048Mbps Wireless Modem replaces the CSU DSU or OCU used in regular wired connections 2 048Mbps Wireless Modem CLCC Figure C 5 Fractional TI DSU Network Interface This type of connection is referred to as a DSU network connection In order to meet the
81. mechanism breaks the data into fragments called buffers and adds a Cyclical Redundancy Check CRC code which enables detection of errors in the received fragment A header providing unique identification as well as Acknowledge Not Acknowledge response is attached to each fragment 61 TECHNICAL 0118 931 2233 49 2 048Mbps Wireless Modem In order to maintain a continuous flow of reconstructed received data transferred to the terminal equipment a delay must be introduced The longer the delay the more effective the ARQ mechanism A longer delay can improve performance in applications not sensitive to delay The same delay settings must be configured on both Master and Slave modems In voice applications select the maximum acceptable delay It is recommended to use an echo canceller This allows use of a higher delay and improves performance Some data communications protocols are sensitive to delay Select the appropriate delay while taking into consideration the relevant performance The actual value of the link delay is dependent on the modem rate and data rate configuration and is displayed when setting the total link delay Modem Initialisation String In order to enable remote site management it is possible to connect an external dial up modem to the 2 048Mbps Wireless Modem instead of a local monitor This feature is usually used to allow remote management of the local and remote wireless units from a central location see Figur
82. more information 0 Positive Edge Negative Edge default See Clock Polarity below for more information Table 3 5 V 35 RS 530 X 21 Parameters Menu Items and Actions DCE DTE The current selection is displayed or a NOT DEFINED message if a different LIU is used Table 3 6 displays DCE DTE functionality options Functional Description Option in monitor Jumper Position V 35 RS 530 X 21 DCE internal clock V 35 RS 530 DCE external clock DCE internal clock DCE external clock Figure A 5 Figure A 6 V 35 RS 530 DTE Table 3 6 DCE DTE Functionality Options DTE V 35 and RS 530 Figure A 7 58 49 SALES 0118 965 5100 2 048Mbps Wireless Modem See Appendix A for details on DCE DTE options and for instructions on setting the LIU jumpers according to the end equipment configuration Unless specially ordered the 2 048Mbps Wireless Modem with a V 35 or RS 530 X 21 LIU is supplied from the factory with the settings DCE internal clock Clock Polarity The current selection is displayed or a NOT DEFINED message if a different LIU is used The selection determines if data bits are sampled on the negative or positive edge of the clock signal Non standard sampling negative edge for Transmit Clock and positive edge for Receive Clock should be selected only if a non standard terminal equipment is used operating in accordance with a non standard definition Loopback Mode Menu Loopback M
83. move channels 2 Line Coding Enter to Add channels Enter 2 to Remove channels View current active channels Enter additional channels to become active after next Reset View current active channels Enter channels to be removed from list of active channels after next Reset View current selection Enter 0 or to change 52 lt gt SALES 0118 965 5100 1 Add channels 2 Remove channels Enter numbers between 1 to 24 separated by a comma Two dots are used to indicate a range e g 1 8 11 Add channel 1 and all channels from 8 to 11 Enter numbers between 1 to 24 separated by a comma Two dots are used to indicate a range e g 1 8 11 Remove channel and all channels from 8 to 11 0 AMI 1 BZS default 2 048Mbps Wireless Modem 3 Superframe method 4 D4 yellow alarm method 5 Pulse Shape 6 CRC6 Usage View current selection Enter 0 or to change View current selection Enter 0 or to change View current selection Enter one digit from 0 to 8 View current selection Enter 0 or to change applicable only with ESF Superframe method TECHNICAL 0118 931 2233 4e 0 D4 ESF default See Superframe method below for details 0 D4 bit 2 mode default D4 F bit mode See D4 yellow alarm method below for details 0 DSX 1 DSU line length of 0 133 feet default DSX 1 DSU line length of 133 266 feet 2 DSX 1 DSU line
84. n Use a higher gain receive antenna use a higher gain transmit antenna or a Transmit Power Amplifier at the opposite end or reduce losses in the RF cables WARNING Modem rate too low for RADIO BUFFER ERROR RATE based on counters The difference between the modem rate and the LIU rate is too small to allow the ARQ error correction protocol to correct all the errors Increase the modem rate decrease the LIU rate or improve the error rate on the radio by improving the quality of the RF link 79 TECHNICAL 0118 931 2233 4e Message Description 2 048Mbps Wireless Modem WARNING Delay setting may be too short to correct all errors The selected delay setting might be too short to allow the ARQ to correct the bursts of radio errors present Correction Increase the delay setting or identify and eliminate the cause of the bursts by using the tracers General Alarms Message Description Correction Message Description Correction Message Description Correction Message Description Correction WARNING LIU Clock drift Check clock configuration In EI T1 configuration failure to set the clock source of the end equipment connected to the slave unit to loop back mode Check the clock configuration WARNING LIU Clock frequency differs from set value Indicates a clock rate different from the one specified in a V 35 RS 530 X 21 unit configured as DCE EXTERNAL CLOCK or as DTE Correct
85. nal T1 1 From the Fractional El Parameters menu type 0 to select the Add Remove Echo Cancellation on voice channels menu 2 From the Add Remove Echo Cancellation on voice channels menu type 1 to select the Set Add Channels menu 3 View the current list of channels with echo cancellation If channels in which echo cancellation should be used are not included enter the numbers of the channels that should be added Enter numbers between 1 to 24 separated by a comma Use two dots to indicate a range e g 1 8 11 14 means set echo cancellation to channels 1 8 9 10 11 and 14 21 TECHNICAL 0118 931 2233 5 2 048Mbps Wireless Modem 4 From the Add Remove Echo Cancellation on voice channels menu type 2 to select the Clear Remove Channels menu 5 View the current list of channel with echo cancellation If channels in which echo cancellation should not be used are included enter the numbers of the channels that should be removed from the list Enter numbers between 1 to 31 separated by a comma Use two dots to indicate a range e g 2 5 7 means remove echo cancellation from channels 2 5 6 and 7 6 Activate the new settings by selecting 4 from the Main Menu System Reset to reset the unit after configuration The system must be reset for the modified parameters to take effect 7 Verify link functionality using the LED indicators See page 15 for LEDs description 8 Further configuration may be done using the setup and
86. nd equipment uses the Pulse Density Enforcer method this parameter should be set to 1 Enable Pulse Density Enforcer Otherwise see Bit 7 Zero Suppression above it should be set to 0 Disable Pulse Density Enforcer If the line code used is B8ZS it must be set to 0 Disable Pulse Density Enforcer When transmitting data non voice it must be set to 0 Disable Pulse Density Enforcer unless the data is preconditioned not to send all zero bytes Echo Canceler Set this parameters in accordance with the echo cancellation disabling method used by the end equipment see also appendix C 56 49 SALES 0118 965 5100 2 048Mbps Wireless Modem e Straight 2100Hz tone 0 The most popular method based on transmitting a straight 2100Hz tone e Phase reversed 2100Hz tone 1 2100Hz tone with phase reversals for improved differentiation from voice signals e 2100Hz VPA tone 2 A tone in the range 2000 2100Hz Fractional T1 Alarm buffer The possible alarms are LOS Loss Of Signal Also referred to as all zeros signal indicates that no signal is received from the data equipment AIS Alarm Indication Signal Signal is not received by the data equipment RLOS framer un synchronized The modem does not succeed to synchronize with the end equipment Yellow alarm Indication from the connected end equipment that it does not succeed to synchronize with the modem Frame slip Indicates lack of compatibility between the clocks
87. nd lightweight of the LNA 10 enables it to be directly mounted on the antenna by means of the female RF IN connector Power is obtained through an RG 59 coaxial cable connected to the power supply The LNA 10 incorporates internal lightning and voltage surge protection See page 105 for further information The LNA improves performance by improving the Noise Figure NF of the system as defined by the following formula LNA Improvement NF without LNA NF with LNA Use this formula with absolute values not dB Consider the following typical configuration Antenna Figure 2 8 Achievable improvement through the use of LNA 10 To calculate the achievable improvement through the use of the LNA 10 use the following formulas NF without LNA NF2 NF3 1 G2 NF with LNA NFI NF2 1 G1 1 G1 G2 Where NFI Noise Figure of LNA 10 1 4 29 TECHNICAL 0118 931 2233 4e 2 048Mbps Wireless Modem NF2 Noise Figure of the cable Loss of cable NF3 Noise Figure of the modem 2 8 G1 Gain of LNA 10 10 G2 Gain of the cable 1 Loss of cable values above are taken in absolute value not dB Use the following table to quickly determine the improvement of the LNA given different cable loss For convenience the LNA Improvement value is converted to logarithmic values dB Cable Type Cable Length LNA Improvement Table 2 2 LNA Improvement table For example in a typic
88. nother V 35 amp Internal V 35 amp Internal Intemal clock modem link RS 530 Clock RS 530 Clock supplied to Clock DTE must See Fig See Fig See Fig See Fig See Fig have the A 7 A 5 A 7 A 5 5 Description Table A 2 Configuration Slave can also be configured as DCE with external clock provided that the external clock supplied by the DTE is identical to the clock supplied by the 2 048Mbps Wireless Modem Standard Configuration End equipment 2 048Mbps 2 048Mbps End equipment configured as Wireless Wireless configured as DTE Modem DTE A B B Figure A 1 Standard modem Application Both wireless modem units are configured as DCE internal clock Either unit A or B can be defined as the Master unit Synchronizing your Modem to Another Network Another en poe re Network DTE B DTE A B Figure A 2 Modem Synchronized to Another Network 109 TECHNICAL 0118 931 2233 4e 2 048Mbps Wireless Modem e DTE A supplies the Master clock Modem A is configured as Master DCE external clock e Modem B is configured as Slave DCE internal clock Connecting your 2 048Mbps Wireless Modem to another modem End equipment 2 048Mbps 2 048Mbps End equipment To configured as Wireless Wireless configured as another pre Modes OTE modem Figure A 3 Modem configured as DCE Modem A is defined as a DCE It supplies the clock for the 2 048Mbps Wireless Modems e 2 048M
89. nsmission Queuing ARQ mechanism that enables to detect errors in the received data and to request retransmission of that data The ARQ mechanism breaks the data into fragments called buffers and adds a Cyclical Redundancy Check CRC code which enables detection of errors in the received fragment A header providing unique identification as well as Acknowledge Not Acknowledge response is attached to each fragment Figure 3 8 displays the 2 048Mbps Wireless Modem system counters flow Radio f Modem 1A LUI RX pi an ndun ias Figure 3 8 2 048Mbps Wireless Modem System Counters flow ps LEE Ul TA B Rulis Detection Buts Radio Error LUI Error Buffers Buffers End Equipment JajuauuDe J ap 18juauDe 4 70 49 SALES 0118 965 5100 2 048Mbps Wireless Modem The following is a table of the buffers and their description J TX BUFFERS The number of buffers transmitted to the line interface J RX BUFFERS The number of buffers received from the line interface JERROR BUFFERS The number of buffers with errors sent to the line interface after the ARQ error correction algorithm LIU BUFFER ERROR RATE RADIO NOT ACK BUFFERS RADIO TX BUFFERS RADIO RX BUFFERS RADIO ERROR BUFFERS RADIO NO RX BUFFERS LIU ERROR BUFFERS divided by LIU TX BUFFERS The number of buffers that were transmitted from the unit Radio TX buffers but were not acknowledged by the other un
90. o Canceler parameters in a fractional 1 1 application different echo canceler parameters disabling method are selected in the two units 1 1 Channel Selection in a fractional E1 T1 application different channels are selected in the two units Echo Canceler Channels in a fractional EI Tl application a difference in the channels in which echo cancellation is used in the two units 1 1 Parameters setting different parameters used in the two units in a 1 1 application Correction Configure the parameters properly Note HOP Standard setting can only be configured by an authorized Black Box technician 81 TECHNICAL 0118 931 2233 4e 2 048Mbps Wireless Modem Mode and Access Control Menu The Mode and Access Control menu enables to define the access rights It also enables access to the Site Survey Mode for surveying the applicable electromagnetic environment of the site this does not require a password Mode and Access menu 1 Change Access Rights 2 Enter Site Survey Mode System Reset 3 Exit Site Survey Mode System Reset Figure 3 13 Mode and Access Control menu Change Access Rights The Change Access Rights option displays the current rights and determines whether the user has access rights to 2 048Mbps Wireless Modem Testing menus This option is available to authorized technicians only To enable access to the Testing menu type the Password 8 printable ASCII characters
91. ode View current status 0 No Loopback default Enter 0 or to 1 Loopback Mode change settings See Loopback Mode below for more information Table 3 7 Loopback Mode Menu Items and Actions If you are in loopback mode a loopback is performed on the LIU input and also on the LIU side connected to the modem as described in Figure 3 3 P Receive Modem End Equipment 1 BreezeLINK 121 Figure 3 3 Loopback Mode In this situation the local Tx data is diverted back to the local Rx side of the DTE and the remote Tx data is diverted back to the remote Rx side The loopback mode is useful for pinpointing the source of certain problems For example if data is transmitted by the end equipment in the loopback mode but nothing is received by the end equipment then there is a problem either in the cable s connecting the end equipment to the Wireless Modem or in the end equipment itself When the end equipment supports local loopback testing this helps to identify whether the source of the problem is in the end equipment or in the connection Problems in the modem itself can be identified in a similar fashion assuming that reception conditions are normal See Chapter 4 for more details 59 TECHNICAL 0118 931 2233 4e 2 048Mbps Wireless Modem For fractional E1 T1 the LIU card performs the loopback Both clock and data are looped back When the Master modem is set for loopback operation the clock starts drifting fr
92. om the clock of the end equipment under normal conditions the system clock is supplied by the Master end equipment Eventually this will lead to error messages and the link will be disconnected Therefore loopback tests on the Master side should be as short as possible and should be limited to 1 to 2 minutes at the most It is recommended to avoid performing loopback test on the Master unit in Fractional 1 1 applications or alternatively to switch the master slave definitions of both sides for the duration of the test For V 35 LIU and RS 530 X 21 LIU configured to operate with an external clock the end equipment or alternatively a BER meter should be connected to the unit during the test in order to supply the required clock Line Interface Unit Type Menu Menu Item Options Notes Line Interface View selection Enter 1 This parameter is set in the factory Unit type 3or 5 to change Change it if the LIU is replaced by settings a different type EI Fractional El TI I 2 3 4 Fractional TI 5 V 35 RS 530 X 21 Table 3 8 Line Interface Unit Type Menu Options MCP Parameters Menu The MCP Parameters menu gives you access to the following parameters e Network ID Master Slave Total Link Delay Modem Initialisation String e Number of Links to Synchronize 60 4e SALES 0118 965 5100 2 048Mbps Wireless Modem 1 Network ID Enter up to two decimal If you are using more than one link make digits
93. on screen shows displaying the current resolution 75 TECHNICAL 0118 931 2233 4e 2 048Mbps Wireless Modem 2 Select a new resolution You can enter up to 11 characters in hh mm ss ss format For example to display a tracer of 69 minutes set the Time Tracer resolution to 00 01 00 0 Note Each time you define a new resolution the time tracer graphs are reset Reset Counters In the Counters and Tracers menu type 8 to view the Reset Counters The following information is displayed RESET COUNTER The number of times the system was reset since the last time the Reset Counter was cleared CAUSE OF LAST RESET The cause of the last reset Possible causes are Normal Error Condition A normal reset following an error burst A normal reset is defined as a reset that may occur during regular operation and does not necessarily indicate a problem unless its rate of occurrence is too high Loss of Power A normal reset following an interruption in the power supply Unexpected Internal Error Unexpected assertion of HW reset line Unexpected Loss of CPU clock Unexpected software reset Unexpected assertion of SW reset line the Unexpected causes indicate HW problems that must be checked by Black Box engineer Clear Reset Counter In the Counters and Tracers menu type 9 to clear the Reset Counter 76 49 SALES 0118 965 5100 2 048Mbps Wireless Modem Watch Alarms Alarms for V1
94. onized Radio Rx Sync Green LED lights indicating radio receiving link active TX Sync Green LED lights indicating radio transmission link active After power on of the 2 048Mbps Wireless Modem configured as Master the unit immediately starts transmitting At this stage the TX Sync LED on the Master is on while the RX Sync LED is off After power on of the 2 048Mbps Wireless Modem configured as Slave the unit starts to search for a transmitting Master At this stage both RX Sync and TX Sync LEDs on the Slave are off After the Slave synchronizes with a transmitting Master it immediately starts transmitting Now both RX Sync and TX Sync LEDs on the Slave are on The RX Sync LED on the Master is on after reception from the transmitting Slave is established Failure of radio link reception or transmission may indicate one of the following e A problem in the radio configuration parameters network ID for example e A problem in the radio path obstacles for example e Antennas need adjustment 16 49 SALES 0118 965 5100 2 048Mbps Wireless Modem 2 048Mbps Wireless Modem Connectors Figure 1 8 shows how to connect the 2 048Mbps Wireless Modem to its antennas the power supply and to external equipment To voice dala equipment To To receive transmit antenna antenna To power To terminal monitor supply To from other RSSI test point to NC future co located units DVM option
95. onnectors For easier removal of the LIU board unscrew the small metal panel holding the LIU connectors 5 Carefully separate the LIU board from the main board taking care not to damage the P1 and P2 pins 6 Set the jumpers according to diagrams B 3 to B 5 116 49 SALES 0118 965 5100 2 048Mbps Wireless Modem Figure B 4 El balanced RJ 45 connector 120 W LIU G 703 Figure B 5 T1 balanced RJ 45 connector 100 W 117 TECHNICAL 0118 931 2233 lt gt 2 048Mbps Wireless Modem T1 CSU DSU Applications In most T1 applications the 2 048Mbps Wireless Modem replaces the CSU DSU or OCU used in regular wired connections 2 048Mbps Wireless Modem QUU Figure B 6 TI DSU Network Interface This type of connection is referred to as DSU network connection In order to meet the applicable pulse mask requirements of the DSX 1 standard the Pulse Shape Parameter should be set according to the line length 2 048Mbps Wireless Figure B 7 TI CSU Network Interface In several applications the modem may be connected to CSU DSU equipment as shown in Figure B 7 This type of connection may be chosen because of a technical e g a special MUX interface not supported by 2 048Mbps Wireless Modem or some other reason This type of connection is referred to as a CSU network connection and the Line Length Parameters menu should be set accordingly option 6 118 49 SALES 0118 965 5100
96. ou access to the following parameters Modem Rate Hopping Sequence e Transmit Power e Test Sequence Add Remove Channels menu 1 Modem rate Enter 1 digit information 2 Hopping Enter 1 decimal See Hopping Sequence below for Sequence digit from 0 to 3 more information 3 Transmit Power Enter or 2 1 High 15dBm default 2 Low 2 dBm Use 2 Low if working with a Transmit Power Amplifier connected by a short RF cable in order to reduce the level of power input into the amplifier 4 Add Remove See Add Remove Channels from Channels from Test Test Sequence below Sequence Table 3 10 Radio and Modem Parameters Menu Options Modem Rate The modem rate is set automatically according to the selected LIU Data Rate Clock Rate according to the following table DTE Data Rate Kbps Default Modem Rate Mbps a oS Table 3 11 Default Modem Rate According to Selected LIU Data Rat 64 4e SALES 0118 965 5100 2 048Mbps Wireless Modem Changing the modem rate above the default value results in the following e The higher the modem rate the lower the sensitivity Achievable distances decrease as the modem rate increases e The higher the modem rate relative to the LIU data rate the higher the effective bandwidth Better use is made of the frequency diversity capability inherent to the frequency hopping mechanism In conclusion providing that the received signal level is sufficient selecting a hi
97. ow for details Table 3 1 E1 Parameters Menu Items and Actions 47 TECHNICAL 0118 931 2233 49 2 048Mbps Wireless Modem E1 Alarm Buffer The Possible alarms are LOS all zeros signal Loss Of Signal No signal is received from the data equipment AIS Alarm Indication Signal No signal is received by the connected end equipment When an alarm is detected a note appears at the bottom ofthe display Note An alarm has been activated and the message ALARM EXISTS is displayed on the menu header see Figure 3 1 In addition the TEST LED will blink Fractional EI Parameters Manu See also Appendix C 1 Add Remove Channels 1 1 Add channels 1 2 Remove channels 2 Line Coding 3 Remote alarm method 4 Long haul Short haul 5 Balanced Un Balanced Enter to Add channels Enter 2 to Remove channels View current active channels Enter additional channels to become active after next Reset View current active channels Enter channels to be removed from list of active channels after next Reset View current selection Enter 0 or to change settings View current selection Enter 0 or to change settings View current selection Enter 0 or to change settings View current selection Enter 0 or to change settings If changed set LIU jumpers see manual 48 5 SALES 0118 965 5100 1 Add channels 2 Remove channels Enter numbers between to 31 sepa
98. pecifications Wireless Modem Technical Specifications Models 2 048Mbps Wireless Modem For data rates of up to 2 048 Mbps with E1 T1 RS 530 V 35 or X 21 interface 512Kbps Wireless Modem For data rates of up to 512kbps with RS 530 V 35 or X 21 interface Call Black Box for a quote for this model Radio and Modem Specifications Radio Type Full duplex point to point independent transmit and receive radio channels Transmission Technique Frequency Hopping Spread Spectrum radio Hopping Rate 160 hops per second Hopping Steling time 200uS max Spectrum Utilization and Modulation Table 5 1 details the Spectrum utilization and modulation Modem Bit Modulation Modem symbol Spectrum utilization rate Mb S rate Kb S bits Hz 2 GFSK 1000 4 GFSK 1000 8 GFSK 1000 Table 5 1 Spectrum Utilization and Modulation 95 TECHNICAL 0118 931 2233 49 2 048Mbps Wireless Modem The modem rate is selected automatically by the selected LIU Data Rate Clock Rate according to the following table DTE Data Rate Kbps Default Modem Rate Mbps Table 5 2 Default Modem Rate According to Selected LIU Data Rate Channel Bandwidth The bandwidth for each channel is 20dBc at 500KHz from carrier regardless of bit rate System Bandwidth 2400 2500MHz Different frequency bandwidth is available according to the different country standards Country Standard Frequency Bandwidth 2 402 2 480 MHz Europe ETSI 2 402
99. ragment errors Internal error Usually indicates HW or configuration problem No reception due to poor RF link conditions Both TX and RX counters do net increment Advanced ET T1 LIU not detected MASTER will reset or Advaneed EIT1 LIU not detected SLAVE will reset Unable to synchronize advanced E1 T1 LIU Frame syne missing at advanced E1 TI LIU This message can be the result of defining the LIU as a Fractional Et Fractional T 1 when the actual LIU is different If the unit does have the correct LIU this may indicate hardware problem Turn the power off and than turn it hack on If the problem persists refer to an authorized technician The unit will reset after this message This message may indicate hardware problem in Fractional ENTE system Turn the power off and than tum it back on If the problem persists refer to an authorized technician The unit will reset after this message This message indicates that the unit has not been able to synchronize with the end equipment The link will be set up without synchronization Due to lack of synchronization the unit will reset after several minutes These few minutes may be used to try to correct the configuration of the remote side if necessary via the remote parameters management capahility 9 TECHNICAL 0118 931 2233 49 Queue runaway Loading defaults to NVRAM DIP SW2 is set CPU synchronization 2 048Mbps Wirel
100. rated by a comma Two dots are used to indicate a range e g 1 8 11 Add channel 1 and all channels from 8 to 11 Enter numbers between I to 31 separated by a comma Two dots are used to indicate a range e g 1 8 11 Remove channel and all channels from 8 to 11 0 AMI 1 HDB3 default 0 Bit 3 of TS 0 default Unframed all ones See Remote alarm method below for details 0 Short haul default Long haul See Long haul Short haul below for details 0 Balanced 120 Ohm default 1 Un Balanced 75 Ohm 2 048Mbps Wireless Modem 6 CRC4 Usage 7 Echo canceler disabling method 8 Add Remove Echo cancellation on voice channels 8 1 Set Echo cancellation on voice channels 8 2 Clear Echo cancellation on voice channels Alarm Buffer Table 3 2 Fractional E1 parameters Menu Items and Actions Remote Alarm Method View current selection Enter 0 or to change settings View current selection Enter 0 or to change settings Enter 1 to Set Add channels Enter 2 to Clear Remove channels View current channels with Echo cancellation Enter additional channels to have Echo cancellation after next Reset View current channels with Echo cancellation Enter channels to be removed from list of channels with Echo cancellation after next Reset View Fractional El Alarms if any 0 CRC4 not used 1 Auto detect CRC4 default See CRC4 Usage below for
101. required is even longer if the quality of the link is poor Once the remote database is loaded you can view or change the parameters of the remote unit At this state an indication of being in Remote Monitor mode appears at the end of the first line of each menu Switch to Local Monitor When selecting 2 in the REMOTE Parameters Menu the Switch to local monitor menu appears 0 Switch back to local monitor remote database will be lost Do not switch back to local monitor Note If parameters of the remote units were changed select 4 in the REMOTE Parameters Menu Download remote database to remote unit before switching back to local monitor mode Note that this takes effect only after resetting the unit 66 5 SALES 0118 965 5100 2 048Mbps Wireless Modem Ping Remote Unit The remote management process involves transfer of large quantities of data between the units in addition to normal data and signals Since this transfer can take a long time the PING mode is used to verify that there is a working link between the two units and that remote management operation is feasible Entering this mode causes transmission of a short PING remote message followed shortly by a PONG received message indicating the existence of a remote management link Download remote database to remote unit When selecting 4 in the REMOTE Parameters Menu the Download remote database selection menu appears 0 Download
102. rom the Parameters menu select Parameters Info Screen 2 Verify that one unit is configured as Master and the other as Slave 3 Verify that the following parameters are set identically on both units e Network I D Hopping Standard and Hopping Sequence Modem Rate To check RF Installation e Verify that the TX and RX cables are connected correctly and that the antennas are aligned Check the TX radio High Low power setting If you use a Diplexer Verify that TX and RX connectors are not reversed Verify that the One Antenna Standard Diplexer is the selected hopping sequence f you use the Transmit Power Amplifier TPA 24 Check the 12 VDC power supply jumpers on the Modem transmitter Check the power level of the Transmit Power Amplifier TPA 24 e If you use an LNA check the LNA power supply connection e If all the above are correct but there is still no radio link Measure RF power at the RX radio connector Measure RF power at the TX radio connector Problem 2 Poor performance of radio link To check radio link performance 4 From the main menu select the Counters and Tracers menu 5 In the Counters and Tracers menu type 4 to clear the System Counters and the Channel Tracer 6 Type 2 Display Channel Tracer RSSI per channel to check RSSI per channel 85 TECHNICAL 0118 931 2233 lt gt 2 048Mbps Wireless Modem The received power should be above the reception thresho
103. rs Failure to do so may void the Product Warranty and will certainly expose the end user to legal and financial liabilities Black Box are not liable for injury damage or violation of government regulations associated with the installation of antennas Antenna Sets Black Box offers a variety of antennas cables RF accessories and installation accessories The following is a short list of sets available Please consult technical support for more details Examples of Black Box Antenna Sets Figure 2 11 Wall Mount with Azimuth Alignment Only 33 TECHNICAL 0118 931 2233 lt gt 2 048Mbps Wireless Modem Figure 2 13 One 12dBi Antenna 34 4e SALES 0118 965 5100 2 048Mbps Wireless Modem Range Tables Use the following tables to calculate the antennas and cables that will best suit your transmit receive range requirements assuming line of sight between 2 048Mbps Wireless Modem Master and Slave units The tables are based on the assumption that the default modem rate is being used If a modem rate higher than the default rate is being used the achievable range should be estimated according to the actual modem rate Note When selecting antennas cables and RF accessories for your specific link note that exceeding the recommended power level of the input signal to the 2 048Mbps Wireless Modem may significantly reduce performance Maximal power level input into the Rx port should not exceed 10 dBm For links with a radio
104. s 0 001 percent on time 1 0 0 Figure 3 11 Time Tracer Errors vs Time Graph The graph displays the Radio Error Buffers Rate over time up to the present moment using the resolution defined in Set Time Tracer Resolution option 7 in the Counters and Tracers Menu Information on the maximum error rate in the tracing period and how much time passed since this event occurred appears at the top of the graph Each column in the graph represents the relative error rate in the relevant time period A column with 10 signs represents the channel with the maximal error rate and the height number of signs of each of the other columns represents the error rate in each channel relative to the above maximum This graph is useful for identifying the existence of time dependent interference e g activation of a nearby transmitting device at a specific time every day The graph displays the history of the last 69 time units according to the defined resolution or the history since the last time the Time Tracer was reset see also page 76 Time Tracer Max Consecutive Errors versus Time In the Counters and Tracers menu type 6 to view the Time Tracer Max Consecutive Errors versus Time graph 74 49 SALES 0118 965 5100 2 048Mbps Wireless Modem T7 roux X recs 64 era eens fens fens 44 meme no ne ne 3 Mit a Figure 3 12 Time Tracer Max Consecutive Errors Graph
105. s Modem Frequency Accuracy 15ppm Noise Figure 5dB max Total Link Display Controllable between 14ms to 156ms depending on the Data and Radio rates Line Interface Specifications Data Rates Full Duplex Nx64Kbps 64 128 2048kbps N x 64Kbps 64 128 2048 Kbps LIU Options T1 Interface Data Rate 1544 Kbps Type DSX 1 meets CCITT G 703 and G 823 Connector RJ 45 Line Mode Bipolar AMI or B8ZS Impedance 1000 E1 Interface Data Rate 2048 Kbps Type CEPT I meets CCITT G 703 and G 823 Connector 2 x BNC unbalanced RJ 45 balanced Line Code HDB3 or AMI Impedance 75 unbalanced 120Q balanced 101 TECHNICAL 0118 931 2233 lt gt 2 048Mbps Wireless Modem Fractional T1 Interface Data Rate 1544 Kbps Type DSX 1 meets CCITT G 703 G 704 and G 823 Connector RJ 45 Line Mode Bipolar AMI or B8ZS Impedance 1000 Fractional E1 Interface Data Rate 2048 Kbps Type CEPT I meets CCITT G 703 G 704 and G 823 Connector 2 x BNC unbalanced RJ 45 balanced Line Code HDB3 or AMI Impedance 759 unbalanced 120Q balanced V 35 Interface Data Rate 64 2048 Kbps N x 64 Type Synchronous Data V 35 levels Connector Winchester 34 pins female An adapter cable connected to the 25 pins D Type connector on the V 35 LIU RS 530 Interface Data Rate 64 2048 Kbps N x 64 Type Synchronous Data RS 422 levels Connector D type 25 pins female 102 49 SALES 0118 9
106. sa The operation of the hybrid circuit is highly dependent on the impedance of the transmission lines and since this impedance may vary optimal performance of the hybrid cannot be assured This imperfection results in the generation of an echo signal the transmitted signal at a level that is determined by the quality of the hybrid and the actual impedance of the line In short distance links the echo generated in the far end has a negligible impact on the user since the delay time is insignificant However in some long distance links and in many wireless links this delay may be significant and can reduce the quality of the communications People are used to hearing themselves while speaking However they will be very uncomfortable when hearing themselves after a delay of more than several milliseconds Telephone PBX Multiplexer with an echo canceller Figure C 8 The Source of Echo in Telephony 126 lt gt SALES 0118 965 5100 2 048Mbps Wireless Modem Echo cancellers circuits are used in long distance and some wireless links to solve the echo problem The operation of echo cancellers is based on estimation of the interfering echo signal that is added to the desired signal and subtraction of a similar signal thus cancelling or significantly reducing the interfering echo signal Regular voice channels are used in many applications for modem and fax communications These devices have a built in special echo canceller as
107. sabling method below 0 Set Echo cancellation on voice channels 1 Clear Echo cancellation on voice channels Enter numbers between to 24 separated by a comma Two dots are used to indicate a range e g 1 8 11 Set Echo cancellation to channel 1 and all channels from 8 toll 2 048Mbps Wireless Modem 0 2 Clear Echo View current channels with Enter numbers between cancellation on Echo cancellation Enter 1 to 24 separated by a voice channels channels to be removed comma Two dots are from list of channels with used to indicate a range Echo cancellation after e g 1 8 11 Remove next Reset Echo cancellation from channel 1 and all channels from 8 to 11 Alarm Buffer View Fractional Alarms For details see if any Fractional Alarm Buffer below Superframe Method Each frame transmitted to or received from the end equipment is comprised of 193 bits numbered 1 to 193 Bit numbers 2 to 193 are used for data The first bit of each frame is designated an F bit and is used for purposes such as frame alignment performance monitoring CRC check and providing a data link There are two alternative methods for allocation of F bits ESF A 24 frame multiframe F bits provide frame alignment signal FAS a 4Kbps data link with the connected equipment DL and CRC 6 block check field D4 A 12 frame multiframe F bits provide frame and multiframe alignment signal No CRC or data link Set
108. ss Modem LIU Line Interface Unit Figure 2 18 Default position NC of the Jumpers in the Receive Module Synchronizing Co located Modem Units When two or more 2 048Mbps Wireless Modem units are co located you should perform the following procedures in order to allow optimal performance These procedures enable synchronization of the hopping sequences used by the links and ensure sufficient separation between frequencies used by the links at any given time 40 49 SALES 0118 965 5100 2 048Mbps Wireless Modem 2 048Mbps Wireless Modem Slave 2 048Mbps Li 2 048Mbps Wireless e Wireless es Modem Slave Master units I I I I I L L I Modem Slave L L I I L Figure 2 19 Several Co located modems in a star configuration Note On the Master side the 2 048Mbps Wireless Modem units with a SW version 1 6 and and HW version 2 must be used On the Slave side 2 048Mbps Wireless Modem units with a SW version 1 6 and up can be used with either HW version 2 or previous HW version Step 1 Installing the Antennas Install the antennas of the co located units to minimize interference The antennas of the different units should be located as far from each other as possible and no antenna should be located in the radiating direction of any of the other antennas Step 2 Setting the relevant parameters Set the Modem Rate the Network I D t
109. tches that of the end equipment Problem 6 The radio link is fine but the voice quality data rate is poor or the end equipment loses synchronization from time to time Probable cause e There is an echo on the voice channels created by the end equipment Low data rate on a high bandwidth link which results from the transmission delay of the link or from errors on the link End equipment loses synchronization even on a link featuring low radio bit error rate due to long bursts of errors To reduce echo on voice channels 1 From the MCP Parameters menu select Total Link Delay 2 Select a reduced delay setting Note The better the radio link quality the lower the delay that can be set without introducing errors Where the delay cannot be reduced an external echo canceller is required In fractional EI TI applications use the built in echo canceller to reduce echo in voice channels To improve data rate 1 From the MCP Parameters menu select Total Link Delay The Total Link Delay parameter controls the trade off between error rate and delay 2 Select the required delay setting and test how the new setting affects your performance Note Low delay implies less correction on the raw radio error rate To view isolated bursts of errors e From the Counters and Tracers menu select Display Timer Tracer errors versus time and Display Time Tracer max consecutive errors versus time to view isolated bursts of errors or noisy r
110. tdoor installations over medium to long distances It is probably the best choice for most medium to long range applications UNI 18 Antenna dimensions are 41 x 51 x 38 cm 16 x 20x 15 in 24 49 SALES 0118 965 5100 2 048Mbps Wireless Modem Figure 2 4 Medium Gain 18dBi Antenna High Gain Antenna Uni 24 The gain of this antenna is 24dBi It has a narrow beam width 7 5 degrees which increases the sensitivity to alignment inaccuracy but decreases the influence of multipath propagation fading It is intended for outdoor installations for large distances UNI 24 Antenna dimensions are 61 x 91 x 38cm 24 x 36 x 15in 25 TECHNICAL 0118 931 2233 4e 2 048Mbps Wireless Modem Antenna Basic Medium Medium High Gain Characteristics Antenna Gain Gain Antenna 8 5dBi Antenna Antenna 24dBi 12dBi 18dBi Gain level medium medium high Beam width very wide medium narrow Required low medium high high alignment accuracy Multipath high medium low low sensitivity Antenna size small small medium large Antenna cost medium medium Table 2 1 Antenna Characteristics RF Accessories TPA 24 Transmit Power Amplifier The TPA 24 amplifies the transmit power to a fixed output of 24 dBm 250 mW The TPA 24 is especially useful when long RF cable runs are required The TPA 24 also simplifies antenna alignment by enabling the use of wider dispersion transmit antennas The TPA 24 comes in two models TPA 24 LL and TPA 24 LH T
111. te V 35 RS 530 X 21 only 1 From the Main menu select 1 to access the Parameters menu 2 From the Parameters menu type 1 to select the LIU Line Interface Unit Parameters menu 3 From the LIU Parameters menu type 5 The V 35 RS 530 X 21 sub menu opens 19 TECHNICAL 0118 931 2233 5 2 048Mbps Wireless Modem 4 From the V 35 RS 530 X 21 Parameters menu type 1 The Clock Rate sub menu opens 5 Select the required clock rate according the required data rate of n x 64kb S For example Type 1 for 64 Kbps Type 8 for 512 Kbps 8 x 64 Type 32 for 2048 Kbps 32 x 64 Model BL512 allows data rates up to 512 Kbps only To Configure Channels Fractional E1 1 From the Main menu select 1 to access the Parameters menu 2 From the Parameters menu type 1 to select the LIU Parameters menu 3 From the LIU Parameters menu type 2 to select the Fractional E1 Parameters menu 4 From the Fractional E1 Parameters menu type 1 to select the Add Remove channels menu 5 From the Add Remove Channels menu type 1 to select the Add Channels menu 6 View the current active channels If channels that should be used are not included enter the numbers of the channels that should be added Enter numbers between 1 to 31 separated by a comma Use two dots to indicate a range e g 1 8 11 14 means add channels 1 8 9 10 11 and 14 7 From the Add Remove Channels menu type 2 to select the Remove Channels menu 8 View the current active channels
112. ted and in the correct polarity according to Figure 2 1 18 49 SALES 0118 965 5100 2 048Mbps Wireless Modem Figure 2 1 2 048Mbps Wireless Modem Rear Panel Showing 48 VDC Connector 6 For two 2 048Mbps Wireless Modems to communicate with one another one side of the link must be configured in Master mode with the unit at the other side of the link configured in Slave mode Units are shipped from factory with a default setting of Slave In an or T1 configuration the Master modem must be located on the same side as the E1 or T1 master of the external equipment that provides the system clock Other basic parameters that should be configured for a quick start are e The clock rate V3 5 RS 530 X 21 only Both units must use the same clock rate e Select channels Fractional E1 T1 only Both units must use the same channels e Select channels with echo cancellation Fractional 1 1 with voice channels only Both units must be configured to use echo cancellation in the same channels To Configure the Unit as Master 1 From the Main menu select 1 to access the Parameters menu 2 From the Parameters menu type 2 to select the MCP Parameters menu 3 From the MCP Parameters menu type 2 The Master slave sub menu opens 4 Select the required configuration as follows Type 0 for master Both units must be configured to operate at the same required clock rate For 1 and 1 the rate 15 set in factory To Set the Clock Ra
113. tem configuration parameters and the various system diagnostic tests All explanations refer to software version 1 7 Chapter 4 Troubleshooting provides some useful troubleshooting tips Chapter 5 Technical Specifications lists system specifications of the 2 048Mbps Wireless Modem and accessories Appendix A V 35 RS 530 X 21 Applications contains a description of possible configurations when connecting V 35 RS 530 X 21 end equipment to the 2 048Mbps Wireless Modem Appendix B E1 T1 Applications describes ways to connect an EI T1 2 048Mbps Wireless Modem to 1 end equipment Appendix C Fractional E1 T1 Applications describes the relevant parameters for Fractional E1 T1 applications including the importance of using echo cancellation with voice channels Appendix D Installing Other Types of Receive Amplifiers provides tips on installation of different types of receive amplifiers which are supported by the 2 048Mbps Wireless Modem but are not supplied by Black Box Note This manual describes 2 048Mbps Wireless Modems with hardware version 2 that are running software version 1 7 A 2 048Mbps Wireless Modem running software version 1 7 should be only used in links where the same software version is running on the other modemt It is not recommended to run software version 1 7 on hardware version 1 since many features available in software version 1 7 are not supported This includes support of FractionalEl and Fractional TI LIUs
114. tenna port Power emitted from antenna is up to 36dBm EIRP US version or 20 dBm EIRP European version In Low power mode power output is 2dBm Antennas There is a variety of standard antennas and cable types for different gain levels Antenna Types Basic antenna antenna gain of 8 5dBi Medium gain antennas antenna gain is either 12dBi or 18dBi High gain antenna antenna gain is 24dBi Cable Types e Thin cable this cable is thin and flexible but its attenuation is relatively high e Thick cable this cable is heavier and less flexible its attenuation is lower Low loss cable this cable 1s thicker heavier and more expensive but its attenuation is very low 14 49 SALES 0118 965 5100 24 2 048Mbps Wireless Modem For further information on antennas cables and related accessories see Chapter 2 Installation antennas and Accessories Antenna Interface Antenna interface to the 2 048Mbps Wireless Modem is via two SMA connectors on the rear panel Transmit antenna should be connected to TX and Receive antenna to RX Front Panel Indicators The front panel of the 2 048Mbps Wireless Modem contains eight LED indicators for monitoring general functionality DTE line functionality and radio functionality BLACK Live PWR TEST 05 y A e Figure 1 7 2 048Mbps Wireless Modem Front Panel General PWR On Off Green lamp lights when power supply is connected
115. th of 399 533 feet DSX 1 DSU line length of 533 655 feet CSU interface For more information see Pulse Shape below A Alarm View TI Alarms For details see Alarm Buffer below Buffer if any Table 3 3 T1 Parameters Menu Items and Actions Pulse Shape The current selection is displayed the NOT DEFINED message is displayed if LIU used is not T1 The selection should be made according to the length of the line connecting the terminal equipment to the 2 048Mbps Wireless Modem and according to the type of application CSU or DSU network interface The selection affects the pulse mask used in the interface according to the requirement specified in the applicable standard DSX 1 for DSU network interface ANSI T1 403 for CSU network interface See Appendix B for more details about CSU and DSU network interfaces T1 Alarm Buffer The possible alarms are LOS all zeros signal Loss Of Signal No signal is received from the data equipment AIS Alarm Indication Signal Signal is not received by the data equipment 51 TECHNICAL 0118 931 2233 4e 2 048Mbps Wireless Modem When an alarm is detected a note appears at the bottom ofthe display Note An alarm has been activated and the message ALARM EXISTS is displayed on the menu header see Figure 3 1 In addition the TEST LED will blink Fractional T1 Parameters Menu See also Appendix C 1 Add Remove Channels 1 1 Add channels 1 2 Re
116. the echo canceller designed for regular voice signal is inadequate for cancellation of modem fax signals Thus the echo canceller used in a voice circuit should be disabled when the channel is used for transmission of voice or fax signals To support identification of modem and fax signals by echo canceller circuits these devices transmit a signal at 2100Hz Upon detection of such a signal the echo canceller will be disabled for the duration of the presence of this signal Some modem fax devices use a 2100Hz signal with phase reversal reducing the probability of identifying a voice signal as a 2100Hz tone Another method for disabling echo cancellation is VPA Voice Path Assurance based on identification of a continuous tone in the 2000 2100Hz range Echo cancellation should not be used in non voice channels as it may interfere with proper reception of data or signalling information Potential Problems in Fractional E1 T1 Applications Echo cancellation should not be used in channels carrying data or signalling This includes channel 0 in Fractional El channel 16 in Fractional El systems using CAS Channel Associated Signalling or any other channel s that may be used to transfer signalling information between both sides of the link This may also be true for some channels that are used by voice mail auto attendant or other PBX systems In systems where fax equipment is being used it should be verified that the tone disabling method sel
117. this parameter to 0 D4 or 1 ESF in accordance with the connected end equipment D4 Yellow Alarm Method Yellow alarm is an indication using the D4 multiframe method that the sending equipment is unsuccessful in synchronizing with the receiving equipment There are two methods of transmitting the yellow alarm message e D4 bit 2 mode Setting bit number 2 of all channels to 1 e D4 F bit mode Setting a specific F bit to 1 Set the D4 yellow alarm method to 0 bit 2 mode or 1 F bit mode in accordance with the configuration of the connected end equipment Pulse Shape The current selection is displayed the NOT DEFINED message is displayed if LIU used is not T1 The selection should be made according to the length of the line connecting the terminal equipment to the 2 048Mbps Wireless Modem and according to the type of application CSU or DSU network interface The selection affects the pulse mask used in the 55 TECHNICAL 0118 931 2233 4e 2 048Mbps Wireless Modem interface as per the requirement specified in the applicable standard DSX 1 for DSU network interface ANSI T1 403 for CSU network interface See Appendix C for more details about CSU and DSU network interfaces CRC6 Usage The F bits in an ESF multiframe see Superframe method above provide Cyclic Redundancy Check 6 CRC6 information These bits are the result of a certain calculation performed on all the bits of the previous multiframe 24 frames C
118. ting Radio and Modem Parameters REMOTE parameters viewing and or setting parameters of the remote unit Load Default Values loading the factory default values e Parameters Info Screen viewing the status of main parameters Counters and Tracers Menu This menu enables you to view system statistics and alarms Mode and Access Control Menu The Mode and Access Control menu enables to define the access rights It also enables access to the Site Survey Mode for surveying the applicable electromagnetic environment of the site this does not require a password 45 TECHNICAL 0118 931 2233 49 2 048Mbps Wireless Modem System Reset Resetting the system from the System Reset menu implements all the changes made to the parameters of all the Setup and Configuration functions Testing This menu is for authorized Black Box technical staff only Parameters Menu You can access most of the items for configuring your 2 048Mbps Wireless Modem from the parameters Menu To access the Parameters Menu In the Main menu at the Select Option prompt type 1 The Parameters menu appears ters menu IU Parameters MCP Parameters RADIO and MODEM Parameters REMOTE Parameters Load Default Values Parameter Info Screen Figure 3 2 Parameters Menu To make selections using the Parameters menu At the Select Option prompt type the number that corresponds to the option you require e Type 1 to
119. tion is not active on channel s carrying signalling information 2 Check that all the relevant channels are selected in both 2 048Mbps wireless Modems If Fax es does not work properly 1 Verify that the tone disabling method selected in the 2 048Mbps Wireless Modem matches the capabilities of the fax equipment 2 Check the errors in the LIU link Some fax equipment are highly sensitive to errors and too many errors may even cause automatic disconnection It is recommended that the LIU BUFFER ERROR RATE will not exceed 10 5 3 Check that the one way delay of the link does not exceed one 1 second If necessary try to decrease the delay If voice mail auto attendant other PBX systems features does not work properly 1 Verify that echo cancellation does not interfere with proper operation of the relevant voice channels If necessary disable echo cancellation on this channel s 2 Check sensitivity of the protocol used by the relevant application to the delay of the link Try to decrease the link delay to solve the problem 93 TECHNICAL 0118 931 2233 5 2 048Mbps Wireless Modem 3 Check that the error rate of the LIU link is not too high It is recommended that the LIU BUFFER ERROR RATE should not exceed 10 5 Contact Black Box Should you still have problems contact your local Black Box of the phone numbers are listed at the front of this manual 94 49 SALES 0118 965 5100 2 048Mbps Wireless Modem Technical S
120. us ntl dette um La a 95 Transmission cease 95 Line Interface Specifications 101 Front Panel LED WGC AUG ES aate re detec tica ii 103 dE 103 Mechanical Specifications eade df nerd etu dedo 104 Environmental Specifications lus det ntn etait ew tia dae 104 SEatid als cr ruriia tiles atus Uus eoa Prost upa ed deep 104 Antennas a lero t rid sued cu masons Ra 105 TPA 24 Technical udin dani addict toti rates chen de a e 105 LNA 10 Technical Specifications de 105 AL 1 Technical Specifications ide tata hides e ex eae castri opas 106 Appendix A V 35 RS 530 X 21 Applications saccos eraot tart bd oe n le e leen 108 DCEIDTE ConDIduPabllo To e ahs ceca vraie aset oc she idee rebos Dis te ah cash cece vaca sane 108 NESS ROO SU 05 21 S Onda Savini cidit ruth odis eus ag Coh e rv Fk 108 PET 108 2 048Mbps Wireless Modem Standard 109 Connecting your 2 048Mbps Wireless Modem to another modem 110 RS 530M 35 21 Back to Back COntigUFetio Disce der osse rper Ru t Vuoi 110 Setting the J umper Configurat
121. ut Using Bias T Unit Connection Diagram 4 Set the jumper Jp1 in the Rx Radio module to 12 VDC 128 lt gt SALES 0118 965 5100 P 2 048Mbps Wireless Modem Figure D 2 Jumper Setting for 12 VDC Power Supply To supply DC input through the RF cable 1 Connect the RF Power Cable directly to the RF input in the Receive Amplifier 2 Set the jumper Jp1 in the Rx Radio module to 12 VDC Wireless Modem Figure D 3 Receive Amplifier powered via the RF cable Connection Diagram 129 TECHNICAL 0118 931 2233 4e 2 048Mbps Wireless Modem Appendix E Pin Assignments 1 1 and Fractional E1 T1 Pin Connections ho mme O Table E 1 1 1 and Fractional E1 T1 Pin Connections LIU RS 530 Connector Pin Assignments SOURCE SIGNAL PIN PIN SIGNAL SOURCE DESIGNATION NO NO DESIGNATION 13 Clear to Send Return 12 Transmit Signal Element Timing B Return 11 Ext Transmit Signal Element Timing B Return 10 Received Line Signal Detector B Return 9 Receiver Signal Element Timing B Return DTE Ext Transmit Element Timing A Return DTE Ready B T TER 8 Received Line Signal Detector A DCE E eady 7 Signal Ground Common Return Request to Send B 6 DTE Local Loopbect 5 Clear to Send AJ DCE DCE Recei
122. ver Signal Element Timing A 4 Request to Send A DTE Return Received Data B 3 Received Data A DCE DCE Transmit Signal Element A 2 Transmitted Data A DTE Return Transmitted Data B 1 Shield Common Figure E 1 LIU RS 530 Pin Assignments 130 4e SALES 0118 965 5100 2 048Mbps Wireless Modem LIU D 25 to V 35 Cable Pin Assignments D 25 LIU side v 85 1 A 2 P DUE 16 KOKA T V 9 d 498 X 24 U 1 ARAMA y 19 z Y 12 OOL AA 4 C 5 D 6 E 7 8 20 H Figure E 2 LIU D 25 to V 35 Cable Pin Assignments 131 TECHNICAL 0118 931 2233 4e 2 048Mbps Wireless Modem LIU D 25 to X 21 Cable Pin Assignments D25 LIU side 015 X 21 1 1 2 VAN 4 9 3 4 11 Ar 3 e XA To B 8 Esos Y 9 ED 1 3 4 X KOOL Figure E 3 LIU D 25 to X 21 Cable Pin Assignments 132 lt gt SALES 0118 965 5100
123. www blackbox com mx Japan Black Box Catalog Tel 03 3820 5011 Fax 03 3820 5010 Web Site www blackbox co jp France Black Box Catalogue Tel 0145606700 Fax 0145606747 Web Site www blackbox fr Spain Black Box Comunicaciones S A Tel 3491 663 0200 Fax 34 91 661 84 35 Web Site www blackbox es 2 048Mbps Wireless Modem U S A Black Box Corporation Tel 724 746 5500 Fax 724 746 0746 Web Site www blackbox com Chile Black Box Chile Tel 00 562 223 8811 Fax 00 562 225 1002 Web Site www Blackbox cl TECHNICAL 0118 931 2233 5 2 048Mbps Wireless Modem Contents 8 aa 8 Prod ctDeschptio tsi ia ded pnus edd ck can ostende Ede burst d tic 9 Main Features of the 2 048Mbps Wireless Modem eene 10 Wireless COME CONVEY Sasaki a Post re chee nd ore o depo decies n do aaa 10 Seamless Cornmrilea b iss c censeo iate Pu be ted ERU ee y Lai Ue 10 MEELIS RUT S acto LM A 10 Eir r Free D ata Mac un deca Ud 10 High Speed brat ent du 10 11 iuto dpa anche a a pe dia c 11 Choice of Antennas Cables and RF Accessor

Download Pdf Manuals

Related Search

Related Contents

Untitled  Page 1 Page 2 ー]プロコントレーサーの概要 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・P  Handleiding ComfoSense Manual ComfoSense  Electrónica    CARTE Rabbit  

Copyright © All rights reserved. Failed to retrieve file