USER MANUAL I
Contents
1. OE ene GEN 7 D wee I v RD JA RCV b 7 J C RD DTE A DTE or DTE B Digital Interface Figure 13 DSU Loopback amp 2047 BERT Line Interface 4 6 1 To Execute 2047 BERT Step 1 Enter DEVICE DIAGNOSTIC screen then press Enter DEVICE DIAGNOSTIC Step 2 Use Left arrow or Right arrow to choose BERT 2047 G64KC Y then press Enter 28 I DSL128 USER S MANUAL Step 3 Step 4 Step 5 Step 6 BERT 2047 G64KC Use Left arrow or Right arrow to choose RUN then press Enter BERT 2047 G64KC STOP RUN RST The 2047 BERT has executed successfully when the LCD shows as below The RUN SEC counter should be increasing and the BERT LED should be on RUN SEC XXXXX ERR XXXXX Use Left arrow or Right arrow to choose STOP to stop counting or RST to reset counter then press Enter BERT 2047 G64KC STOP RUN RST IF you choose STOP the counters will stop If you choose RST the counters will reset to zero and begin counting again RUN SEC XXXXX ERR XXXXX 29 I DSL128 USER S MANUAL Appendix A Specifications Items Notes Type Full duplex with adaptive echo cancellation Line coding 2B1Q da Line Type Unconditioned twisted pair 19 26 AWG interfaca Surge Protection Meets FCC Part 68 Type A g2. CSU LOOP REMOTE 2B D and the Loop LED is turned on CSU LOOP REMOTE B1 OK CSU LOOP REMOTE B2 OK CSU LOOP REMOTE 2B D OK Use Left arrow or Right arrow to choose RTN then press Enter CSU LOOP RTN B1 B2 2B D When the LCD shows CSU LOOP REMOTE RTN OK the CSU loopback has been released The Loop LED is then turned off 23 I DSL128 USER S MANUAL CSU LOOP REMOTE RTN OK 4 4 3 2 NT Mode Step 1 Enter DEVICE DIAGNOSTIC screen then press Enter DEVICE DIAGNOSTIC Step 2 Use Left arrow or Right arrow to choose CSU LOOPBACK then press Enter CSU LOOPBACK Step 3 Use Left arrow or Right arrow to choose AUTO or OFF then press Enter CSU LOOP AUTO OFF 4 5 DSU Loopback When you initiate the DSU loopback test the transmitting unit will send a loopback message specified by ITU T V 54 to the receiving unit Either the local or remote site can initiate the test When the receiving unit receives a valid loopback message from the transmitting unit it will send back an acknowledgement message and execute a DSU loopback This tests the B1 B2 or B1 B2 channel as well as the condition of the DSL When the DSU loopback is activated the Loop LED will be turned on It will be turned off when a valid release pattern is received 24 I DSL128 USER S MA
3. The 051128 5 front panel Figure 4 consists of the following LCD module LED module Pushbutton module Figure 4 I DSL128 front panel I DSL128 USER S MANUAL 13 11 LCD Display LCD Function Note Show status and setups 1 English display 2 Backlight 3 16 X 2 character display Table1 Function of the LCD 1 3 1 2 LED Indictors for DSL 128 LED s Function Color Status Note Power Power Indicator Green On Power normal Error Bit error detection Red Off Port G64KC 2047 BERT closed or no error detection Sync DSL Indicator Green Off System and remote unsynchronized On System and remote synchronized Blink System detect DSL side CRC error NEBE BERT Error Rate Test Red Off 2047 BERT test On 2047 BERT test Loop Testing indicator Yellow Off System functioning normally On jSystem in testing mode TX Data transmitting Green Off No data transmission from DTE to port G64KC On Data transmission from DTE to port G64KC RX Datareceiving Green Off No data transmission from port G64KC to DTE On Data transmission from port DTE A to DTE Table 2 Function of the LED indictors 1 3 1 3 Push Buttons Button Function Esc Exit Left Arrow Left Right Arrow Right Enter Enter Confirm Table 3 Function of the LCD push button I DSL128 USER S MANUAL 1 3 2 Rear Panel
4. DSL 128 will restart after 3 seconds RESTART DEVICE AFTER 3 SECONDS I DSL128 USER S MANUAL 3 5 Load Default Settings For factory default settings please refer to Table 5 Step 1 Step 2 Step 3 Step 4 Enter DEVICE CONFIGURATION screen then press Enter DEVICE CONFIGURATION Use Left arrow or Right arrow to choose LOAD DEFAULT SETTINGS then press Enter LOAD DEFAULT SETTINGS Use Left arrow or Right arrow to choose YES then press Enter LOAD DEFAULT NO YES The LCD will display the following message and the 051 128 will load default settings from EEROM and restart after 3 seconds LOAD DEFAULT amp RESTART DEVICE I DSL128 USER S MANUAL 4 Maintenance The 05 128 provides a user friendly interface The user can utilize the LCD and four push buttons Left arrow Right arrow Esc Enter on the front panel to view system status local The DSL128 provides four kinds of loopback and one built in BERT function These can be used to maintain diagnose and test system and loop performance without any other equipment The following screens can be displayed Show Status Local Loopback Digital Loopback CSU Loopback DSU Loopback BERT G64KC 2047 Note 1 The CSU and DSU loopbacks will work properly under the DSL environment with a 10 bit error rate Note 2 The Digital CSU and DSU loopbacks could be activated onl
5. Figure 7 Local Loopback DTE Digital Interface Line Interface I DSL128 USER S MANUAL 4 2 1 To Execute Local Loopback Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Enter DEVICE DIAGNOSTIC screen then press Enter DEVICE DIAGNOSTIC Use Left arrow or Right arrow to choose LOCAL LOOPBACK then press Enter LOCAL LOOPBACK Use Left arrow or Right arrow to choose ON then press Enter LOCAL LOOP OFF ON The local loopback is executed successfully when the LCD shows LOCAL LOOP and both the SYNC and Loop LED s are lit Otherwise it shows LOCAL LOOP FAILED meaning the local loopback was not activated LOCAL LOOP OK LOCAL LOOP FAILED Use Left arrow or Right arrow to choose OFF then press Enter LOCAL LOOP OFF ON When the local loopback has been released successfully the LCD shows LOCAL LOOP RELEASE OK The Loop LED is turned off and the system returns to initial state LOCAL LOOP RELEASE OK I DSL128 USER S MANUAL 4 3 Digital Loopback When the digital loopback is activated it will test the transmitting receiving functions of the DSL128 when using a DSL condition The digital loopback function is only executable when the DSL connection is synchronized with the remote site When this test is executed a
6. The DSL128 s rear panel Figure 5 consists of the following DTE Interface e DSL Interface Power Interface Figure 5 The I DSL128 rear panel Each interface has the following functions Label Function POWER Power switch AC IN Power inlet input voltage 90 264V AC 10VA DSL 2B1Q Line interface port DTE A Co directional interface port Table 4 Function of the rear panel I DSL128 USER S MANUAL 1 3 8 DTE Interface The DS L128 family provides a single DTE interface as follows G 703 Co Directional G64KC The DTE interface of the 051 128 is fixed at 64Kbps 1 3 4 DSL Interface 1 3 4 1 1 3 42 DSL Characteristics Line coding 2B1O Type Full duplex with adaptive echo cancellation Impedance 1350 Physical line type Unconditioned twisted pair 19 26AWG Conforms to ANSI T1 601 1992 DSL Connector The I DSL128 s DSL interface provides a 2 wire RJ45 for ISDN basic rate U interface 1 3 4 3 DSL Protection There are surge protectors current limiters and fuses for the primary protection and zener diodes and a diode bridge for secondary protection The I DSL128 conforms to FCC Part 68 Type A amp B 13 44 Sealing Current NT mode The DSL 128 provides a closed loop for sealing current The loop resistance is about 334Q LT mode The 05 128 emulates a constant current source It outputs a DC current of less than 20mA with a voltage of 42V 56VD
7. features Support for 64Kbps of bandwidth for high speed data applications One DTE port One LCD panel and four push buttons Ability to display and configure local and remote system parameters Three system clock sources Loop timing Internal timing External timing From DTE interface Four loopback functions Local loopback W Digital loopback CSU loopback DSU loopback Built in 2047 BERT pattern generator and receiver for each DTE port AC or DC power input depending on model I DSL128 USER S MANUAL 1 2 Applications for 05 128 The following sections show you the possible applications for the DSL128 The l DSL128 delivers dedicated digital access to remote users when they are connected to a central office over a PCM Advance D4 Channel Bank AD4 Digital Loop Carrier DLC system or U loop ISDN repeater Figure 1 PCM AD4 PCM AD4 DTE OCU x OCU DP DP DIE Sc TISA CL ISa Figure 1 I DSL128 connects with multiplexer system The DSL128 can serve as a 64Kbps limited distance modem for leased line application Figure 2 DSL DTE DTE 871 ISC 1 A v STT ISA Figure 2 I DSL128 leased line application I DSL128 USER S MANUAL 1 3 Hardware Overview DSL128 Figure Overview of the DSL128 1 3 1 Front Panel
8. C The l DSL 128 can protect itself when the DSL loop shorts or when it connects with another current source I DSL128 USER S MANUAL 1 4 Factory Default Setup for the DSL128 The I DSL128 is supplied with a default setup which is used when it is first started up The default configuration is as follows System Parameters Default Setup DTE port G64KC LT NT NT DATA RATE 64K CLOCK SOURCE Loop Table5 System Default Setup 2 Installation The following shows the rear panel of the DSL128 and the connection diagram do Do p d Power Power DSL Line G 703 Switch Inlet Connector Co directional AC shown Line Connector Figure 6 DSL128 back panel connections I DSL128 USER S MANUAL To install the DSL128 proceed as follows Step 1 Connecting the DSL128 to the DSL U interface Connect the DSL port labeled Line on the rear panel to the remote site Step 2 Connecting the G64KC to other co directional equipment Connect the DTE port labeled Data on the rear panel to the co directional equipment using twisted pair cable Step 3 Connecting the Power Adaptor to your I DSL128 Connect the power to the port labeled AC 90 264V AC on the rear panel of your I DSL128 Step 4 Turning on the power Turn on the power switch labeled POWER on the rear panel of your 05 128 The PWR LED lights up to indicate the power is normal All the LED s on the front panel except for the PWR LED will bli
9. NUAL V 54 DSU Loopback Local Site Remote Site I DSL128 I DSL128 ES N s x y E Nc J S DTE DTE A DTE Line Interface Digital Interface Figure 10 DSU Loopback There are four modes can be chosen by the user DISABLE Ignore ITU T V 54 pattern from remote ENABLE Detect ITU T V 54 pattern from the remote site and execute the corresponding activation or release of DSU loopback automatically REQ REMOTE LOOP Send ITU T V 54 loopback pattern to the remote site to activate remote DSU loopback REQ REM RELEASE Send ITU T V 54 release pattern to remote site to release remote DSU loopback 4 5 1 To Execute DSU Loopback 45 1 1 Request Remote Loopback and Release Step 1 Enter DEVICE DIAGNOSTIC screen then press Enter DEVICE DIAGNOSTIC Step 2 Use Left arrow or Right arrow to choose DSU LOOPBACK V 54 G64KC then press Enter DSU LOOPBACK V 54 G64KC Step 3 Use Left arrow or Right arrow to choose REQ REMOTE LOOP for request for remote CSU loopback then press Enter DSU LOOP G64KC REQ REMOTE LOOP 25 I DSL128 USER S MANUAL Step 4 Step 5 Step 6 4 5 1 2 Step 1 Step 2 Step 3 The DSU loopback is executed successfully when the LCD shows REQUEST OK and the Loop LED is turned on Otherwise the LCD shows REQUEST FAIL and the Loop LED is off DSU LOO
10. P G64KC REQUEST OK DSU LOOP G64KC REQUEST FAIL Use Left arrow or Right arrow to choose REO REM RELEASE to request the remote CSU loopback release then press Enter DSU LOOP G64KC REQ REM RELEASE When the DSU loopback has been released successfully the LCD shows REQ REM RELEASE and Loop LED is off DSU LOOP G64KC REM LOOP RELEASE Disable and Enable DSU Loopback Function Enter DEVICE DIAGNOSTIC screen then press Enter DEVICE DIAGNOSTIC Use Left arrow or Right arrow to choose DSU LOOPBACK V 54 G64KC then press Enter DSU LOOPBACK V 54 G64KC Use Left arrow or Right arrow to choose DISABLE for disabling CSU loopback function or ENABLE for enabling CSU loopback function then press Enter DSU LOOP G64KC DISABLE DSU LOOP G64KC ENABLE 26 I DSL128 USER S MANUAL 4 6 2047 BERT There is one built in 2047 BERT test pattern generator and receiver in each DTE port of the DSL128 You can easily use the testing mechanism and other loopback functions to check the status of system itself the DSL and the remote equipment Figure 11 12 13 Note The 2047 BERT function is not available under the following conditions Time slot you wish to use occupied by Digital Loopback test Time slot you wish to use occupied by CSU loopback test initiated from remote site D
11. T Mode There are two modes available for the user AUTO Automatically detect EOC messages from the LT and execute the corresponding activation or release of CSU loopback OFF Ignore EOC messages from the LT Note 1 When the CSU loopback is activated the assigned DSL payloads B1 B2 Channels or 2B D are occupied in a testing mode so the DSU loopback of the corresponding DTE ports and 2047 BERT are disabled at the local site Note 2 If the I DSL 128 is set to OFF the system will release all the CSU loopbacks When the CSU loopback is activated the Loop LED will be turned on It will be turned off when the unit receives a valid RTN command All CSU replies loopbacks from the NT will be latching permitting multiple EOC loopback messages to be in effect simultaneously When the NT receives the RTN message all the CSU loopbacks are released 22 I DSL128 USER S MANUAL 4 4 3 To Execute CSU Loopback 4 4 3 1 Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 LT Mode Enter DEVICE DIAGNOSTIC screen then press Enter DEVICE DIAGNOSTIC Use Left arrow or Right arrow to choose CSU LOOPBACK then press Enter CSU LOOPBACK Use Left arrow or Right arrow to choose B1 B2 or 2B D then press Enter CSU LOOP RIN B1 B2 2B D The CSU loopback is executed successfully when the LCD shows CSU LOOP REMOTE B1 CSU LOOP REMOTE B2 OK or
12. TE port you wish to use occupied by DSU loopback test initiated from remote site When 2047 BERT function is activated the BERT LED is turned on the assigned DTE port off and the timer activated Users may check the RUN TIME and BIT ERR results on the LCD RUN TIME The elapsed time with range from 0 to 65535 seconds If results are out of this range a sign appears to the left of the digits BIT ERR The error bit count with range from 0 to 65535 bits If results are out of this range a sign appears to the left of the digits For each bit error the counter will add one and the ERR LED will blink If the bit errors are too numerous to synchronize the 2047 BERT pattern or there is no data input the BIT ERR will display NO SYNC and the bit error counter will stop counting Local Loopback amp Local Site Remote Site I DSL128 2047 BERT I DSL128 om 7 2047 GEN omw RD 2047 E A N RD M M P Re P 2 iow il Line Interface Digital Interface Figure 11 Local Loopback amp 2047 BERT 27 I DSL128 USER S MANUAL eoc CSU Loopback amp Local Site LT Remote Site NT I DSL128 2047 BERT I DSL128 ECC ERES a E 4 N Z N NV p IN E Ke y DTE B1 or B2 or 2B D DTE Line Interface Digital Interface Figure 12 CSU Loopback amp 2047 BERT V 54 DSU Loopback amp
13. USER MANUAL I DSL 128 Single Port Leased Line Modem DSL128 ur D 0 UM UM A ore TO RD tms m The information in this publication has been carefully checked and is believed to be entirely accurate at the time of publication The company assumes no responsibility however for possible errors or omissions or for any consequences resulting from the use of the information contained herein The company reserves the right to make changes in its products or product specifications with the intent to improve function or design at any time and without notice and is not required to update this documentation to reflect such changes The company makes no warranty representation or guarantee regarding the suitability of its products for any particular purpose nor does The company assume any liability arising out of the application or use of any product and specifically disclaims any and all liability including without limitation any consequential or incidental damages The company products are not designed intended or authorized for use in systems or applications intended to support or sustain life or for any other application in which the failure of the product could create a situation where personal injury or death may occur Should the Buyer purchase or use a The company product for any such unintended or unauthorized application the Buyer shall indemnify and hold The company and its officers employees subsidiaries affil
14. iates and distributors harmless against all claims costs damages expenses and reasonable attorney fees arising out of either directly or indirectly any claim of personal injury or death that may be associated with such unintended or unauthorized use even if such claim alleges that The company was negligent regarding the design or manufacture of said product TRADEMARKS Microsoft is a registered trademark of Microsoft Corp HyperTerminal is a registered trademark of Hilgraeve Inc WARNING This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference in which case the user will be required to correct the interference at his own expense NOTICE 1 The changes or modifications not expressively approved by the party responsible for compliance could void the user s authority to operate the equipment 2 Shielded interface cables and AC power cord if any must be used in order to comply with the emission limits CISPR PUB 22 Class A COMPLIANCE This device complies with EMC directive of the European Community and meets or exceeds the following technical
15. ill not be saved in system I DSL128 USER S MANUAL 3 1 LT NT Step 1 Step 2 Step 3 Step 4 Step 5 Enter DEVICE CONFIGURATION screen then press Enter DEVICE CONFIGURATION Use Left arrow or Right arrow to choose CHANGE SETUP then press Enter CHANGE SETUP Use Left arrow or Right arrow to choose LT NT screen then press Enter CHANGE SETUP LT NT Use Left arrow or Right arrow to choose LT or NT then press Enter LT NT LT NT The LCD will show one of the following messages to indicate successful completion LT NT LT MODE LT NT NT MODE I DSL128 USER S MANUAL 3 2 Data Rate Step 1 Enter DEVICE CONFIGURATION screen then press Enter DEVICE CONFIGURATION Step 2 Use Left arrow or Right arrow to choose CHANGE SETUP then press Enter CHANGE SETUP Step 3 Use Left arrow or Right arrow to choose DATA RATE then press Enter CHANGE SETUP DATA RATE note G 703 64K co directional must have fixed data rate of 64Kbps The timeslot may be selected as either B1 or B2 channel and must match on both local and remote units Step 4 Use Left arrow or Right arrow to choose the G64kC time slot B1 or B2 then press Enter G64KC G64KC 64K B1 64K B2 G64KC OFF I DSL128 USER S MANUAL 3 3 Clock Mode The I DSL128 provides three options for
16. k The CSU loopback is a testing function controlled from the unit in the LT mode The LT unit the local site in Figure 9 sends loopback messages through an EOC specified by ANSI T1 601 and the NT unit the remote site in Figure 9 executes the loopback function when it receives a valid loopback command The loopback tests the local and remote units and the DSL This procedure may be performed without using other personnel The digital loopback requires two or more people eoc CSU Loopback Local Site LT Remote Site NT I DSL128 I DSL128 TD TD RD E Sa 2 RD DTE or B2 or 2B D DTE Line Interface Digital Interface Figure 9 CSU Loopback 4 4 1 LT Mode There are four kinds of EOC loopback messages that can be chosen Return To Normal RTN 1111 1111 Operate B1 Channel Loopback 0101 0001 Operate B2 Channel Loopback 0101 0010 Operate 2B D Loopback 0101 0000 When you specify the eoc loopback message it is sent continuously with the address 000 When one of the operate messages activates the CSU loopback the TST LED will be turned on It will be turned off when the RTN message is sent Note When the CSU loopback is activated the assigned DSL payloads B1 B2 Channels or 2B D are occupied in a testing mode so the digital loopback and DSU loopback of the corresponding DTE ports are disabled at the local site 21 I DSL128 USER S MANUAL 4 4 2 N
17. l Overview 1 2 Applications for DSL 128 1 3 Hardware Overview 1 4 Factory Default Setup for the I DSL 128 Installation icontiguralidn s M Q JA Data Rate dre S Clock Mod senarrei eee oL x EPIS e vaut DA Restart Device diii ore rene E Soo ape uox a onsets 3 5 Load Default Settings T Maintenance eA 2 1 SNOW Bes Roue 4 2 Local Loopback eed e eaae INO an ue ed 4 3 Digital Loopback ade e e sa 44 CSU Egopback sixes ss cies enr exe hano qud eV aE a AS DSU Loopback 535 oro NOIRS OE HIDE Ver el utu Res Appendix ToU Den AES IS PRA a EDEN VERE Table of Contents Table of Contents I DSL128 USER S MANUAL 2 Introduction to the DSL 128 The 051 128 is a stand alone data circuit terminating equipment DCE unit that connects data terminal equipment DTE to the digital data network DDN The I DSL128 utilizes 2B1O line coding and echo cancellation technique for full duplex operation at synchronous 64Kbps or 128Kbps transmission rate over 2 wire unconditioned twisted pair The I DSL128 family consists of the following Single DTE port The I DSL128 family provides the type of DTE interfaces as following e V35 EFIA 530 e V 36 RS 449 1 1 General Overview The I DSL128 is a stand alone leased line modem with the following
18. ll the payloads B1 and B2 Channels are looped and the Loop LED is lit and the DTE ports are turned off Note When the digital loopback is activated all the DSL payloads B1 and B2 Channels are occupied into a testing mode So CSU DSU loopback and 2047 BERT are disabled in the local site Digital Loopback Local Site Remote Site I DSL128 I DSL128 fe SNC ra gt ON E ES EE X1 DTE DTE Line Interface Digital Interface Figure 8 Digital Loopback I DSL128 USER S MANUAL 4 3 1 To Execute Digital Loopback Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Enter DEVICE DIAGNOSTIC screen then press Enter DEVICE DIAGNOSTIC Use Left arrow or Right arrow to choose DIGITAL LOOPBACK then press Enter DIGITAL LOOPBACK Use Left arrow or Right arrow to choose B1 B2 then press Enter DIGITAL LOOP OFF B1 B2 Digital loopback is executed successfully when LCD shows DIGITAL LOOP 1 2 and the Loop LED is lit DIGITAL LOOP B1 B2 OK Use Left arrow or Right arrow to choose OFF then press Enter DIGITAL LOOP OFF B1 B2 When the digital loopback has been released successfully the LCD shows DIGITAL LOOP RELEASE OK The Loop LED is turned off DIGITAL LOOP RELEASE OK 20 I DSL128 USER S MANUAL 4 4 CSU Loopbac
19. nk for five seconds The LCD will show the following DSL 128 After blinking for five seconds the LED s will turn off and the I DSL128 will begin a self test The local system tries to synchronize with the remote site After the initial setup you can modify the configuration by using the LCD and the four push buttons Left arrow Right arrow Esc Enter on the front panel I DSL128 USER S MANUAL 3 Configuration You can change the DSL 128 s configuration from the local site only You can change any of these 5 settings 1 LT NT 2 DATA RATE time slot 3 CLOCK SOURCE 4 RESTART DEVICE 5 LOAD DEFAULT SETTING Note 1 Item 3 only shows up in the LT mode While setting up the items 1 2 the LCD will indicate current system settings by a 2 sion If the user needs to change the settings just use Left arrow or Right arrow to move the cursor blinking to the preferred option then press Enter to confirm the operation After this the gt sign will point to the new setting and indicate the device configuration has been change successfully The user may press Esc to leave any operating screen If there are any settings changed before you leave the current screen the system will remind user to save the changes The screen displays this message SAVE SETUP NO YES If you choose YES the settings will be saved in system If you choose NO or press Esc the settings w
20. or future standardization 7 No Connection Reserved for future standardization 8 No Connection Reserved for future standardization Data Connector and Pin Designations Signal Pin Direction Description Function Protective 4 Chassis Ground Ground 10 May be isolated from Signal Ground Signal 8 Common Signal Ground Ground Transmitted 3 To I DSL128 Serial Co directional data from Data 11 DTE Received 1 Fm I DSL128 Serial Co directional data at the Data 9 output of the I DSL128 receiver 31 Transmission Units CTC Union Technologies Co Ltd Far Eastern Vienna Technology Center Neihu Technology Park 8F No 60 Zhouzi Street Neihu Taipei Taiwan Phone 886 2 2659 1021 Fax 886 2 2799 1355 E mail info ctcu com http Awww ctcu com
21. standard EN 55022 Limits and Methods of Measurement of Radio Interference Characteristics of Information Technology Equipment This device complies with CISPR Class A WARNING This is a Class A product In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures CE NOTICE Marking by the symbol CE indicates compliance of this equipment to the EMC directive of the European Community Such marking is indicative that this equipment meets or exceeds the following technical standards EN 55022 1994 A1 1995 A2 1997 Class A and EN61000 3 2 1995 EN61000 3 3 1995 and EN50082 1 1997 CTC Union Technologies Co Lid Far Eastern Vienna Technology Center Neihu Technology Park SF No 60 Zhouzi St Neihu Taipei 114 Taiwan Phone 886 2 2659 1021 FAX 886 2 2799 1355 I DSL 128 Single Port Leased Line Modem User Manual Version 1 1 September 2005 Released for first printing This manual supports the following models I DSL128 This document is the first official release manual Please check CTC Union s website for any updated manual or contact us by E mail at info ctcu com Please address any comments for improving this manual or to point out omissions or errors to marketing Q ctcu com Thank you The information contained in this document may be updated at any time without notice N Introduction to the DSL 128 1 1 Genera
22. system clock sources W Loop timing Internal timing W External timing From Data interface G64KC Note 1 Clock mode can only be configured when the system in the LT mode Note 2 When the system in the LT mode it can be configured only as internal or external timing G64KC Note 3 When the system in the NT mode loop timing is fixed Step 1 Step 2 Step 3 Step 4 Step 5 Enter DEVICE CONFIGURATION screen then press Enter DEVICE CONFIGURATION Use Left arrow or Right arrow to choose CHANGE SETUP then press Enter CHANGE SETUP Use Left arrow or Right arrow to choose CLOCK SOURCE screen then press Enter CHANGE SETUP CLOCK SOURCE Use Left arrow or Right arrow to choose INT for internal timing or G64KC for external timing then press Enter CLOCK SOURCE INT G64KC The LCD will show one of the following messages to indicate successful completion CLOCK SOURCE INTERNAL CLOCK SOURCE FROM G64KC I DSL128 USER S MANUAL 3 4 Restart Device Step 1 Step 2 Step 3 Step 4 Enter DEVICE CONFIGURATION screen then press Enter DEVICE CONFIGURATION Use Left arrow or Right arrow to choose RESTART DEVICE then press Enter RESTART DEVICE Use Left arrow or Right arrow to choose YES then press Enter RESTART DEVICE NO YES The LCD will show the following message and the
23. t B Connector RJ45 Number of Ports 1 DTE Data Rate Synchronous 64Kbps Interface Connector G 703 64K Co Directional 4 wire twisted pair 2 wire mode Renee Up to 5 5Km over 26 AWG P 5 Up to 7 0Km over 24 AWG Meet ANSI 1 601 and ETSI 080 standard loop Internal Clock Source Line G64KC eoc Fully detect EOC message defined by ANSI T1 601 Local loopback Digital loopback Puaenosue ll Soapbacks ITU T V 54 DTE loopback ANSI T1 601 CSU loopback 2047 BERT DTE G64KC Keypad 4 operation keys Esc Left arrow Right arrow Enter Front Panel LED 7 status LED s PWR SYNC Loop BERT Data Ix Rx ERR LCD 16 X 2 with backlight AC Input 90 264V AC 47 63Hz Power DC Input 18 60VDC Consumption gt 10 Physical Dimensions 19 5X4 8X16 8 cm W XH X D Mounting Desk top stackable AS omens Temperature 0 50 C Humidity 0 95 RH non condensing EMI Meets IEC CISPR22 Class A Meets FCC Part 15 Subpart B Class A 30 I DSL128 USER S MANUAL Appendix B DSL Connector and Pin Designations PIN NUMBER FUNCTION NOTES 1 No Connection Reserved for future standardization 2 No Connection Reserved for future standardization 3 No Connection Reserved for future standardization 4 Signal Tip or ring of pair to and from the network interface 5 Signal Tip or ring of pair to and from the network interface 6 No Connection Reserved f
24. y when the DSL is synchronized Note 3 The system will release the Digital CSU and DSU loopbacks when the DSL is out of sync 4 1 Show Status The I DSL128 can display system status of the local or remote site 18 items available LT NT mode Data Port Number Clock mode G64KC speed Local loopback Digital loopback CSU loopback DSU Loopback G64KC BERT G64KC I DSL128 USER S MANUAL 4 1 1 To View System Status Step 1 Enter SHOW STATUS screen then press Enter SHOW STATUS Step 2 Use Left arrow or Right arrow to check the system current status MODE XX PORT NUMBER XX CLOCK MODE XXXXXX G64KC SPEED XXXXXX LOCAL LOOPBACK XXXXXX DIGITAL LOOPBACK XXXXXX CSU LOOPBACK XXXXXX DSU LOOP G64KC XXXXXX BERT G64KC XXXXXX I DSL128 USER S MANUAL 4 2 Local Loopback When the local loopback is activated it will utilize the local site of the 051 128 see Figure 7 This will test the transmitting receiving functions of the local site During this test the remote unit will lose DSL synchronization When the local loopback test is released the system will restart and return to its initial state During the local loopback testing period the TST and ACT LED s will be lit Local Loopback Local Site Remote Site I DSL128 I DSL128 di d s NX NL Tc AN TD TD RD X Do V PA No p de m DTE
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