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Verilink TAC 2010 User Manual

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1. If the loop up code reaches the far CSU and it is optioned to respond to loop up codes then the far CSU enters a line loop condition Now the local CSU receives whatever it is sending NOTE Whenever the Inband Up command is used to send a loop up code to a far end CSU the Inband Down command must be used later to send the loop down code Otherwise the far end CSU will be left in a looped condition Verilink TAC 2010 User Manual Sending a Pattern Results Test Failures Diagnostics Begin transmitting a test pattern by using the qrss command Verify that the pattern received matches the pattern being transmitted by using the show cntr command Figure 5 4 Sending and Receiving Pattern Test pattern sent D ni TAC 2010 Far CSU ends pattern Test pattern received Checks pattern al in Line Loop If the QRSS pattern is received with no errors the Test Error Counter does not increment If the Test Error Counter does increment one of the following applies e Thefar end CSU never went into a loopback and therefore the test pattern being transmitted is not being received at all This would cause the Test Error Counter to increment at a rapid and steady rate e The far end CSU went into a loopback but the pattern received at the local TAC 2010 does not match the pattern transmitted In this case the Test Error Counter might increment in uneven amounts at virtually any rate
2. VERILINK NCC NODE CONTROLLER at 1 1 FW Rev 4 75 SITE NAME NODE ID 0 SHELF 1 2 3 4 5 6 7 8 9 10 11 BR B 1M C D C D C D c D 2 3 4 KEY C CSU D DIU F DIU DDS B DIU DBU R SRD I IDCSU T TU S SMDS V VCU S shelf slot D diagnostics N near element 0 node administration F far element M monitor alarms OFF C configuration A almto net mgr OFF P performance X system log off 1 1 NEAR TAC 2010 gt Select the CSU Select the TAC 2010 CSU in slot 5 by using the Shelf Slot command 1 Type S and press ENTER 2 The prompt for the Shelf Slot command is presented 3 Type 1 5 and press ENTER 4 The prompt line is redisplayed with the slot number changed 1 5 and the module identified as a TAC 2010 at the bottom of the screen CSU When installing aTAC 2010 moduleto be used with any type of DIU Configuration 21xx module always configure the CSU module before configuring anything on the DIU 21xx module When the DIU 21xx is configured it is connected logically to a CSU At that instant the DIU gets information from the CSU as to which data bus in the shelf midplane to use If the CSU has not been configured yet the DIU 21xx will not get a correct bus assignment This is why the CSU should be configured first Type C and press ENTER The Configuration Menu is presented Verilink TAC 2010 User Manual 2 3 Quick Set Up Figure 2 3 TAC 2010 Configuration Menu X
3. Connect an optional external clock source using either a TTL Transistor Transistor Logic level 0 to 5V or balanced RS 422 signal The clock must be at 1 544 Mbit s Alarm Relay Rear Connect an external alarm system which will trigger on either a relay closure using NO and COM leads or an open using NC and COM leads The relay in the TAC 2010 module supports Form C relay specifications Verilink TAC 2010 User Manual 1 5 Overview 1 6 Verilink TAC 2010 User Manual zu Chapter Quick Set Up This section details a quick step by step procedure for configuring the TAC 2010 For this quick configuration guide the following assumptions are made That you are adding the TAC 2010 and asingle DIU 2130 DSU module to an existing installation in a Multi line shelf That the specific Multi line shelf used is an MLS 2200 and the new modules are being placed in slots 5 and 6 That you are dividing the bandwidth of an ESF B8ZS T1 evenly between the two data ports of the DIU 2130 That one of the data ports is used for a router and the other data port is for a time division multiplexer That you are using an NCC 2020 controller card in slot 1 of shelf 1 Figure 2 1 Example Configuration y Router Cloud Time Division Multiplexer It is most likely that this procedure will not match your configuration exactly Use
4. Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated by the supplier Any repairs or alterations made by the user to this equipment or equipment malfunctions may give the telecommunications company cause to request the user to disconnect the equipment Users should ensure for their own protection that the electrical ground connections of the power utility telephone lines and internal metallic water pipe system if present are connected together This precaution may be particularly important in rural areas Caution Users should not attempt to make such connections themselves but should contact the appropriate electric inspection authority or electrician as appropriate This equipment is intended to be installed only in a Restricted Access Location that meets the following criteria Access can only be gained by service personnel or users who have been instructed about the reasons for the restrictions applied to the location and about any precautions that must be taken Access can only be gained through the use of a lock and key or other means of security and is controlled by the authority responsible for the location When handling this equipment follow these basic safety precautions to reduce the risk of electric shock and injury Follow all warnings and instructions marked on the product and in the manual Unplug the hardware from the wall outlet before cleaning Do no
5. SF AMI SCC 2020 TAC 2010 41 NCC 2020 Canned configuration 2 EQPT ESF AMI NET ESF AMI SCC 2020 TAC 2010 42 NCC 2020 Canned configuration 3 EQPT SF AMI NET SF B8ZS SCC 2020 TAC 2010 43 NCC 2020 Canned configuration 4 EQPT SF B8ZS NET SF B8ZS SCC 2020 TAC 2010 44 NCC2020 Canned configuration 5 EQPT ESF B8ZS NET ESF B8ZS SCC 2020 TAC 2010 45 NCC 2020 The configuration of the selected module having been previously NCC 2130 stored is restored to the module from the NCC Not supported by SCC modules 46 NCC 2020 The configuration of the module selected in steps 1 and 2 of this NCC 2130 thumbwheel command sequence is stored in the NCC If the module is replaced or loses its configuration later command 45 may be used to restore it Not supported by SCC modules 3 14 Verilink TAC 2010 User Manual Configuration Code Applies to Description 47 NCC 2020 NCC 2130 SCC 2020 SCC 2130 TAC2010 TAC 2130 Network LBO 0 dB Typical value use when a T1 installed by a local Bell carrier is terminated in a smart jack network termination device or the first repeater is 2000 to 3000 feet away 48 NCC 2020 NCC 2130 SCC 2020 SCC 2130 TAC2010 TAC 2130 Network LBO 7 5 dB Attenuates transmit signal by 7 5db USE ONLY IF NO SMART JACK IS PRESENT Implies that the first active device repeater T3 mux far CSU is 1000 to 2000 feet away 49 NCC 2
6. T1 devices send a yellow alarm to alert the far end device when they are in a red alarm condition such as Loss Of Signal LOS Loss Of Frame LOF or Alarm Indication Signal AlS received all ones keep alive To resolve a problem with received yellow alarms find the trouble in the transmit path of the CSU which is receiving the yellow alarm BPV A bipolar violation is a sequence of two or more consecutive pulses of the same polarity If aT1 is designed to support B8ZS but some portion of the facility is configured for AMI in error the AMI portion of the T1 may attempt to fix the intentional bipolar violations used to represent 8 or more zeroes ona B8ZS T1 This may manifest as BPVs or BPVs with CRC 6 errors To verify that a T1 which is intended to be B8ZS is actually configured properly test the facility with a pattern of all zeroes CSU reports no errors but DTE reports errors In some data applications using DSU functions a condition is reported in which the CSU does not report errors but the customer Data Terminal Equipment DTE does report errors This usually results from transmit data sampling errors at a DSU interface at the opposite end of the circuit from the DTE reporting the errors If a CSU DSU samples a zero when the DTE actually presented a one the transmitting CSU creates CRC checksum data based on the improperly sampled bit s The data does not change on the T1 facility and the receiv
7. 0 86 0 7 0 23 0 39 0 55 0 71 0 87 0 8 0 24 0 40 0 56 0 72 0 88 0 9 0 25 0 41 0 57 0 73 0 89 0 10 0 26 0 42 0 58 0 74 0 90 0 11 0 27 0 43 0 59 0 75 0 91 0 12 0 28 0 44 0 60 0 76 0 92 0 13 0 29 0 45 0 61 0 77 0 93 0 14 0 30 0 46 0 62 0 78 0 94 0 15 0 31 0 47 0 63 0 79 0 95 0 16 0 32 0 48 0 64 0 80 0 96 0 1 5 NEAR TAC 2010 gt 4 4 Verilink TAC 2010 User Manual 24 Hour Severely Errored Seconds Performance Monitoring Severely Errored Seconds pose a Serious threat to the integrity of your data Since a T1 offers a maximum of 1 536 Mbit s an error rate over 320 per second becomes significant Severely errored seconds can also result from Out of Frame OOF conditions During an OOF event all user data is lost A typical 24 Hour Severely Errored Seconds Report is shown in Figure 4 5 Figure 4 5 24 Hour Severely Errored Seconds 24 HOUR SES PERFORMANCE DATA Name Tech Pubs TAC 2010 96 0 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 Site Valid Intervals SES in 24 Hours 1 0 17 0 2 0 18 0 3 0 19 0 4 0 20 0 5 0 21 0 6 0 22 0 7 0 23 0 8 0 24 0 9 0 25 0 10 0 26 0 11 0 27 0 12 0 28 0 13 0 29 0 14 0 30 0 15 0 31 0 16 0 32 0 1 5 NEAR TAC 2010 gt 2 oO oO OOOO O Oo O Oo Oo Oo O Seconds in Current Interval in Current Interval SES 6 3 98 1 49 50 51
8. 5 A P 1 5 CSU CONFIGURATION lt lt el lt lt framing SF format AMI jitt buf 40 BITS eq cre REGEN xcode yel TO NET distance 0 133 exit menu save csu config diu bus NONE prm OFF NEAR TAC 2010 gt FW Rev 1 4 HW Fab 0 8 Type TAC 2010 K keep alive AIS lt lt net lt lt T almthld DEF W framing ESF F format AMI J jitt buf 40 BITS R net cre REGEN Y xcode yel OFF L 1b0 0 DB I idle code ONES gt gt net gt gt sense Z density 12 8 07 C1 C5 canned config Q restore csu config B diu clock THRU 2 4 The factory default values for the TAC 2010 are shown The unit is in CSU mode DIU bus NONE and the network interface shown at top right is set for ESF framing and AMI line coding format The DSX 1 Equipment interface shown at top left is set for SF D4 framing and AMI line code For this quick set up the equipment interface is not being used as it would be in CSU mode or drop and insert mode Because this example will use all 24 timeslots for data on a DIU 2130 module Mux mode is required 1 Type A and press ENTER The prompt for bus selection appears DSU Bus 1 NONE 2 A 3 B 4 C 5 B D8l EQ 6 A D amp l NET gt Select 2 to use Data Bus A This means that the CSU and the DIU 2130 will use Data Bus A in the shelf to pass data back and forth The CSU is now in Mux mode The EQPT LED ch
9. 52 53 54 55 56 57 58 59 60 61 62 63 64 1 2 oO O O OOO O co co co 2 Coco oOo oOo O 12 48 46 65 66 67 68 69 70 71 72 73 74 75 76 11 78 79 80 2 oO O O 2 2 O O O O O OO O 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 231 oooooooo eoocoooeooeo O 0 Verilink TAC 2010 User Manual 4 5 Performance Monitoring 24 Hour Unavailable Seconds Figure 4 6 24 Hour Unavailable Seconds After ten Severely Errored Seconds in a row the CSU begins to count Unavailable Seconds As the name suggests the error rate in this condition is considered to be so high that the T1 circuit should be treated as though it were not available Once a CSU begins counting Unavailable Seconds it continues to do so until ten consecutive seconds pass all of which are error free or have a lower error rate than a Severely Errored Second A typical 24 Hour Unavailable Seconds display is shown in Figure 4 6 Seconds in Current Interval UAS in Current Interval 24 HOUR UAS PERFORMANCE DATA 6 3 98 Site Name Tech Pubs TAC 2010 1 1 Valid Intervals 96 UAS in 24 Hours 0 1 0 17 0 33 0 49 0 2 0 18 0 34 0 50 0 3 0 19 0 35 0 51 0 4 0 20 0 36 0 52 0 5 0 21 0 37 0 53 0 6 0 22 0 38 0 54 0 7 0 23 0 39 0 55 0 8 0 24 0 40 0 56 0 9 0 25 0 41 0 57 0 10 0 26 0 42 0 58 0 11 0 27 0 43 0 59 0 12 0 28 0 44
10. T timing source chnl 01 02 03 04 Dp port Lead Toggles Forced Ports Mp mode Sp scram hdlc inv Kp clocking Gp LOS lead Ep enable loop Np near oopback Fp far loopback 1 6 DIU 2130 gt CONFI GURATI ON DIAGNOSTIC MENU Q restore config X exit menu 0 0 CSU 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DTR DSR RTS CTS DCD l gt Port 1 Port 2 Statistics 56K 56K FW HW Rev 1 6 0 8 N N N N Battery OK ST ST DTE Intf V 35 V 35 NONE NONE Data bus NONE YES YES Tp test and monitor BEC OFF OFF Pp monitor leads and status OFF OFF A enable alarm reporting YES 2 6 NOTE For the remainder of this chapter you will not be instructed to press ENTER each time Generally the ENTER key is used after each command or value entry The CSU command is used to assign the DIU 2130 module to the CSU with which it will be used The TAC 2010 CSU module in slot 5 will be used for the CSU in this example Type C At the prompt enter shelf gt type 1 At the prompt enter slot gt type 5 This selects the TAC 2010 in slot five of shelf one as the CSU for this DIU 2130 module The Timing Source defaults to CSU meaning that the DIU 2130 will derive its transmit clock from the source selected in the CSU configuration recovered network clock in this example This is correct for this example In the middle of the disp
11. U UAS 4 2 Unavailable Seconds 4 6 V Verifying A T1 5 8 view alarm buffer 3 3 Y yellow alarms 3 5 Verilink TAC 2010 User Manual October 1999 P N 880 503298 001 Al VERILINK VERILINK CORPORATION 127 JETPLEX CIRCLE MADISON ALABAMA 35758 TEL 800 837 4546
12. use Procedure 1 Original b No You have an intermediate version TAC 2010 use Procedure 2 Intermediate Procedure 1 If the battery is surrounded by a black plastic socket you can Original interrupt the battery and reset the module to default configuration by inserting athin piece of cardboard such as a business card between the battery and the contact which connects to the positive pole See Figure 3 4 Figure 3 4 Original Version Contact 3 10 Verilink TAC 2010 User Manual Configuration Procedure 2 If the battery is directly behind the three LEDs but not in a black Intermediate plastic socket it is soldered directly to the printed circuit board To reset the module to default momentarily short the positive and negative poles of the battery The positive pole is the top and the negative pole is the lower portion of the battery Briefly short them to each other using a short jumper wire the blade of a pocket screwdriver or a paper clip See Figure 3 5 Figure 3 5 Intermediate Version Position a paper clip against both battery segments to short battery Battery gt gt Segments gt IN OUT NET EQPT Verilink TAC 2010 User Manual 3 11 Configuration Procedure 3 The current version of the TAC 2010 is easily recognized by the Current absence of an RJ 11 modular connector on the front panel The current TAC 2010 has a berg jumper which completes the battery circuit By momenta
13. 0 60 0 13 0 29 0 45 0 61 0 14 0 30 0 46 0 62 0 15 0 31 0 47 0 63 0 16 0 32 0 48 0 64 0 1 5 NEAR TAC 2010 gt 13 13 03 65 66 67 68 69 70 11 72 73 74 75 76 11 78 79 80 2 2 2 2 2 OO OO OO O Oo oo 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 7 OOOO O OO OO O O co oO Oo Oo 86 0 4 6 Verilink TAC 2010 User Manual 24 Hour Loss of Frame Count Performance Monitoring A loss of frame synchronization on a T1 circuit causes a loss of all user data as long as the Out of Frame OOF condition continues The 24 Hour Loss of Frame Count indicates how many seconds per fifteen minute interval were during an Out of Frame condition These are seconds during which no user data passed Since there are 900 seconds in a fifteen minute period the value for any one interval will never exceed 900 A typical 24 Hour LOFC display is shown below in Figure 4 7 Figure 4 7 24 Hour Loss of Frame Count 96 0 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 Site Name Valid Intervals LOFC in 24 Hours 1 0 17 0 2 0 18 0 3 0 19 0 4 0 20 0 5 0 21 0 6 0 22 0 7 0 23 0 8 0 24 0 9 0 25 0 10 0 26 0 11 0 27 0 12 0 28 0 13 0 29 0 14 0 30 0 15 0 31 0 16 0 32 0 1 5 NEAR TAC 2010 gt 24 HOUR LOFC PERFORMANCE DATA 6 3 98 13 28 48 Tech Pubs TAC 2010 1 1 Seconds
14. 2020 Stops QRSS pattern and sends inband CSU loop down code to far end NCC 2130 SCC 2020 SCC 2130 TAC2010 TAC 2130 62 DIU 2140 Uses timeslot 24 on the assigned CSU Sets all 5 data ports to 9 6 kbit s 63 DIU 2140 Selects split timing RX clock TX clock typical value 64 DIU 2140 Selects single source timing RX clock TX clock 65 DIU 2140 Sets DTE timing option for all synchronous data ports to ST 66 DIU 2140 Sets DTE timing option for all synchronous data ports to ST 67 DIU 2140 Sets DTE timing option for all synchronous data ports to TT 68 DIU 2140 Sets RTS to normal operation For synchronous data ports data is transmitted ONLY if the DTE asserts RTS ignored in Async default 69 DIU 2140 Sets RTS to forced on requires version 1 1 DIU 2140 firmware data is sent regardless of actual state of RTS from DTE This behavior always applies to Async ports 80 DIU 2130 Sets Data Port 1 to tail circuit timing Note that TAC 2130 T and TAC NCC 2130 2130 S modules do not support tail circuit timing external timing or SCC 2130 TIU 2850 timing TAC 2130 81 DIU 2130 Canned configuration 1 assigns all 24 timeslots to data port 1 NCC 2130 SCC 2130 TAC 2130 Verilink TAC 2010 User Manual Configuration Code Applies to Description 82 DIU 2130 Canned configuration 2 assigns timeslots 1 12 to data port 1 and NCC 2130 timeslots 13 24
15. 5 1 In this example the word PULSES appears on both the equipment left and network right sides of the display When the word PULSES appears alone that interface has no alarms Figure 5 1 Diagnostics Menu CSU DIAGNOSTIC X exit menu __eq loops__ R repeater E equip FW Rev 1 4 HW Fab 0 8 Type TAC 2010 es A A ses lt lt net lt lt l r PULSES a ml el cs Jee ee eee eee eee eee ee fesse gt gt net gt gt Y enable loops Z reset alarm T test time 15 SEC __err counter__ _ net signals__ __net loops __ A show cntr 1 qrss L line B clear cntr 2 3 in 24 P payload 3 1 in 8 U inband up N end tests 4 all 1s D inband down 1 5 NEAR TAC 2010 gt 5 2 Since a T1 circuit operates by sending pulses to represent a logical one the indication PULSES means that the TAC 2010 does see pulses on both the equipment left side and network right side interfaces Therefore of all the messages which might appear on this menu in upper case characters PULSES is the only message which does not represent an alarm condition Pulses are the logical opposite of a Loss of Signal LOS condition Figure 5 2 below shows the result of disconnecting the T1 circuit from a TAC 2010 module The word PULSES no longer appears on the right side where network status is indicated Instead alarm conditions are reported including ALARM FRAME LOSS CRC ERRO
16. CSU and feeds it directly into the receive circuitry of the CSU If the CSU is transmitting bad data it will now receive bad data and the problem will be located the CSU If the CSU is transmitting good data but the receive circuitry is defective the signal received will fail and the CSU will declare an alarm Use the R command on the Diagnostics Menu to initiate a repeater loopback A warning message appears Service Affecting Are you sure Y N Press y because you are sure During a repeater loopback test the NET LED on the CSU should be green and the EQPT LED should be amber The STAT LED will usually turn red because of a transient bit error condition which occurs at the instant the test begins Ignore the STAT LED when conducting loopback tests on a CSU If the EQPT LED blinks amber to red during a repeater loopback errors are being detected in the DSX 1 data presented by the local equipment Verify cabling and option compatability If the NET LED is not green during a repeater loopback test contact Verilink Technical Support for assistance If the repeater loopback test passes the CSU is not defective For troubleshooting tips related to non CSU problems see Table 5 6 Verilink TAC 2010 User Manual Diagnostics Table 5 6 Troubleshooting Tips Trouble Suggestion Signal loss Verify that a T1 circuit is connected to the network port Verify that a proper cable is used T1 circuits use
17. Frame Count an accumulated value equal to the number of times that a Loss of Frame has been declared Loss of frame is declared when either LOS Loss of Signal or OOF Out of Frame is true for two to three seconds LOF is cleared only after 10 seconds with LOS and OOF clear Definitions Acronym ES BES SES UAS LOFC One Hour Network The One Hour Network function produces a 24 hour summary for each of the parameters described in Table 4 1 above Also shown are counts for each of the same alarm conditions for the preceeding hour in four 15 minute intervals Figure 4 2 One Hour Network Report 4 2 ONE HOUR PERFORMANCE DATA 6 3 98 12 10 44 Site Name Tech Pubs TAC 2010 ELEMENT ID 1 1 Valid Intervals 96 Seconds in Current Interval 464 ES UAS BES SES LOFC 0 0 0 0 0 24 Hour Total 0 0 0 0 0 Current Interval 0 0 0 0 0 Interval 1 0 0 0 0 0 Interval 2 0 0 0 0 0 Interval 3 0 0 0 0 0 Interval 4 1 5 NEAR TAC 2010 gt Verilink TAC 2010 User Manual Performance Monitoring 24 hour Errored The 24 hour Errored Seconds selection on the Performance Seconds Monitoring Menu displays the errored second counts for each of the last 96 fifteen minute intervals Errored seconds are the least serious of the error conditions tracked by the CSU A typical errored seconds display is shown below in Figure 4 3 Figure 4 3 24 Hour Errored Seconds 24 HOUR ES PERFORMANCE DATA 6 3 98 12 25 26 Site Name
18. Monitoring Menu is only available with an ESF T1 CRC 6 error checking used to detect errored seconds is only present on an ESF T1 The Performance Monitoring Menu is accessed by typing P while at the TAC 2010 Main Menu The Performance Monitoring Menu offers six options to display information and a Reset Registers command to clear all stored information Figure 4 1 Performance Monitoring Menu PERFORMANCE MONI TORING N 1 hour network E 24 hour es B 24 hour bes S 24 hour ses U 24 hour uas L 24 hour lofc R reset registers X exit menu 1 5 NEAR TAC 2010 gt Verilink TAC 2010 User Manual 4 1 Performance Monitoring The acronyms shown on the Performance Monitoring Menu are described in Table 4 1 below Table 4 1 Performance Monitoring Menu Acronyms Meaning Errored Second any second during which one or more bit errors have been detected Bursty Errored Seconds a second having between 2 and 319 CRC 6 error events Bursty errored seconds are not counted when an SES or UAS is counted Severely Errored Second a second with 320 or more CRC 6 error events or one or more OOF Out of Frame events Unavailable Second any second during which an Unavailable Signal State occurs An Unavailable Signal State condition is declared after ten consecutive SES and clears only after ten consecutive seconds which are not Severely Errored Seconds Loss of
19. NCC type node controllers This feature is not supported in the SCC series Q restore csu config Restores stored configuration If the configuration for a module has been previously stored in an NCC a replacement module can be placed in the same slot and sent the stored configuration A diu bus Selects both the 1 NONE no data bus CSU is in CSU mode Mode in which the CSU will operate 2 A Mux mode using data bus A CSU Mux or Drop 3 8_Mux mode using data bus B and Insert as well as which midplane data 4 C Mux mode using data bus C bus if any will be used to exchange 5 B D amp l EQ Drop and Insert mode toward equipment data with any DIU some DSX 1 timeslots routed to local DIU Rarely or never 21xx modules used In Mux mode the 6 A D amp NET Drop and Insert toward the Net some TAC 2010 EQPT LED network timeslots routed to DSX 1 port some others to one is always green or more DIU modules This is typical drop and insert B diu clock Selects the source of 1 THRU The CSU derives transmit clock from the transmit the Transmit Clock used by the CSU to transmit data toward the T1 network Note that in CSU mode DIU Bus NONE this option is ignored The TAC 2010 performs as though THRU timing were selected In Drop and Insert mode use of THRU timing is suggested In Mux mode if the far end CSU is set for INT clock or if the carrier is using a DACS to pro
20. REGEN OFF 0 DB 12 80z C5 canned config restore csu config diu clock THRU Configuration Menu Commands Some of the commands on the CSU Configuration Menu are shown on both the left and right sides of the screen Commands that are used for both DSX 1 equipment and T1 network ports are repeated on both the equipment and the net side of the diagram Command prompts for these options present pairs of values the value for the equipment side is followed by the value for the network side For example if connecting a D4 SF channel bank to an ESF T1 circuit the SF ESF framing selection is used Table 3 4 below describes the TAC 2010 CSU Configuration Menu options 3 4 Verilink TAC 2010 User Manual Table 3 4 CSU Configuration Options Configuration Menu Option Description Instructions W framing Selects T1 framing First value DSX 1 equipment second value T1 circuit mode for both DSX 1 equipment port and 1 SF SF D4 equipment and a D4 T1 T1 network port 2 ESF SF ESF equipment and a D4 T1 Selection for the Equipment side must 3 SF ESF D4 equipment and an ESF T1 match the 4 ESF ESF ESF equipment and an ESF T1 configuration of the DSX 1 equipment 5 UF UF unframed equipment on an unframed T1 never use this option on a T1 circuit provided by a telephone Selection for the T1 company network side must ma i match the type of T1 6 SF ZBT D4
21. Tech Pubs TAC 2010 1 1 Valid Intervals 96 Seconds in Current Interval 627 ES in 24 Hours 23 ES in Current Interval 0 1 0 17 0 33 0 49 0 65 0 81 0 2 0 18 0 34 0 50 0 66 0 82 0 3 0 19 3 35 0 51 0 67 0 83 0 4 0 20 0 36 0 52 0 68 0 84 0 5 0 21 0 37 0 53 0 69 0 85 0 6 0 22 0 38 0 54 0 70 0 86 0 7 0 23 0 39 0 55 0 71 0 87 0 8 0 24 0 40 0 56 0 72 0 88 0 9 0 25 0 41 0 57 0 73 0 89 0 10 0 26 0 42 0 58 0 74 0 90 0 11 0 27 0 43 0 59 0 75 0 91 0 12 0 28 0 44 5 60 0 76 0 92 0 13 0 29 0 45 0 61 0 11 0 93 0 14 0 30 0 46 0 62 0 78 15 94 0 15 0 31 0 47 0 63 0 79 0 95 0 16 0 32 0 48 0 64 0 80 0 96 0 1 5 NEAR TAC 2010 gt Verilink TAC 2010 User Manual 4 3 Performance Monitoring 24 Hour Bursty Bursty Errored Seconds are more severe than errored seconds and Errored Seconds can cause some applications to lose sessions or suffer excessive retransmissions A typical 24 Hour Bursty Errored Seconds display is shown in Figure 4 4 Figure 4 4 24 Hour Bursty Errored Seconds 24 HOUR BES PERFORMANCE DATA 6 3 98 12 43 46 Site Name Tech Pubs TAC 2010 1 1 Valid Intervals 96 Seconds in Current Interval 829 BES in 24 Hours 0 BES in Current Interval 0 1 0 17 0 33 0 49 0 65 0 81 0 2 0 18 0 34 0 50 0 66 0 82 0 3 0 19 0 35 0 51 0 67 0 83 0 4 0 20 0 36 0 52 0 68 0 84 0 5 0 21 0 37 0 53 0 69 0 85 0 6 0 22 0 38 0 54 0 70
22. accepts your double click the STAT LED on the selected module will stop blinking green to off and will return to some other state If the STAT LED on the module continues to blink green to off the NCC or SCC did not accept your double click Try double clicking again at a faster or slower Verilink TAC 2010 User Manual 3 13 Configuration rate If you are not successful within 60 seconds of the time you selected the module in step 2 the module will timeout and return to its normal state If this happens start over with step 1 of this procedure Thumbwheel Table 3 5 lists the commands available through the front panel Commands thumbwheels Table 3 5 Thumbwheel Switch Commands Code Applies to Description 01 to 30 Anyof first Selects a module in the indicated slot up to slot 30 A node controlled 30 by an NCC module may contain a maximum of 30 modules A node modules controlled by an SCC may have up to 52 modules but only the first 30 modules can be selected with the thumbwheel switches 31 NCC 2020 Accesses the controller functionality of the NCC or SCC node NCC 2130 controller not the T1 CSU portion For an NCC or SCC in slot 1 of SCC 2020 shelf 1 use address 01 to set CSU options SCC 2130 32 NCC 2020 Resets the modem interface by sending the configured modem NCC 2130 initialization string to the DB 9 modem port SCC 2020 SCC 2130 40 NCC 2020 Canned configuration 1 EQPT SF AMI NET
23. an NCC 2020 or the other modules it controls refer to the Node Manager for Windows 95 User Manual Thumbwheel Switches Thumbwheel Procedure Thumbwheel switches are present on the front panel of the NCC and SCC type node controller modules They are provided as a measure of last resort for configuring the application modules Whenever possible use the Craft interface or a network management program instead of the thumbwheels A four step procedure is used for each thumbwheel command 1 Set the thumbwheel to the number 01 through 30 equal to the slot number of the module to be configured If anode consists of multi line shelves the first slot in shelf two would be numbered as 14 and the last slot 26 In anode consisting of all dual line shelves the first left hand slot of a second shelf is number 03 2 Rapidly press the EXE pushbutton twice as if double clicking a mouse If the NCC or SCC accepts your double click the STAT LED on the selected module will begin to blink green to off If the STAT LED does not begin to blink try double clicking again at a slightly faster or slower rate Do not proceed to step 3 until the STAT LED on the desired module begins to blink Once the STAT LED does begin to blink do steps 3 and 4 within 60 seconds or the procedure will time out 3 Set the thumbwheel switches to the command value to be used per Table 3 5 below 4 Double click the EXE pushbutton again If the NCC or SCC module
24. conditions as well as offering command options which may be used to establish and terminate loopbacks and test patterns A typical way of using the Diagnostics Menu might involve the following steps 1 Establish a loopback somewhere in the circuit path 2 Start transmitting atest pattern 3 Observe the test error counter to see if the test pattern is received as it was sent a If no errors are observed move the point of loopback further away to test more of the circuit path or b If errors are observed move the point of loopback closer to determine the source of the problem 4 Stop the test pattern drop all loopbacks then a Place the Tl circuit back into service if all tests passed or b Contact the appropriate vendor if a problem is found In addition to offering the ability to put up and take down loopbacks and test patterns the Diagnostics Menu provides information about the current status of the DSX 1 equipment interface and DS 1 network interface The top half of the Diagnostics Menu includes a drawing made up of ASCII characters representing the operation of the CSU The equipment interface is shown on the left and the network interface is shown on theright To the left and right of the drawing of a framer status information is represented by words displayed in upper case characters Verilink TAC 2010 User Manual 5 1 Diagnostics Diagnostics Menu A sample of the Diagnostics Menu is shown in Figure
25. equipment on a Zero Bit Time Slot Insertion installed by the T1 There are no ZBTSI T1 circuits Do not use this option er Tu 7 ESF ZBT ESF equipment on a ZBTSI T1 There are no P ZBTSI T1 circuits Do not use this option F format Selects AMI or BBZS First value DSX 1 equipment second value T1 circuit for the DSX 1 equipment and T1 1 AMI AMI AMI coded DSX 1 equipment on an AMI T1 network line codes i 2 must meteh 11d 2 AMI B8ZS AMI DSX 1 equipment on a B8ZS T1 equipment settings 3 B8ZS AMI B8ZS DSX 1 equipment on an AMI T1 this InM d h selection is problematic unless the equipment is configured n Mux mode where to use only 56K of each DSO instead of 64K per DSO no DSX 1 equipment is used only the 4 B8ZS B8ZS B8ZS DSX 1 equipment on a B8ZS T1 second parameter is meaningful J jitt buf Jitter Buffer selects 1 16 16 Sets both buffers to 16 bit depth less resilience the size of the jitter to jitter and less delay buffer in bits on the DSX 1 and Network _ 2 40 16 Sets DSX 1 side to 40 bits and network side to 16 sides of the CSU bits Larger buffers are 3 16 40 Sets the DSX 1 side to 16 bits and the network more resistant to a sideto 40 bits ea sane ee 4 40 40 Sets the default value of 40 bit jitter buffer on utters introduce both sides of the CSU less delay R eq crc Selects whether or 1 PASS same type framing on both sides not the CSU will regenerate the CRC 6 2
26. manuals e AS2000 The Basics provides general information about Verilink products e The DIU 2130 User Manual documents a two port DSU often used with the TAC 2010 CSU e Node Manager for Windows 95 User Manual documents the Verilink network management program designed to operate under Windows 95 or Windows NT e Access Manager 2000 User Manual documents the Verilink network management program designed to operate under Windows 3 1 only The TAC 2010 CSU module must be managed by one of five Verilink node controller modules the NCC 2020 NCC 2130 SCC 2020 SCC 2130 or NCM 2000 You can configure the TAC 2010 through an ASCII terminal port Craft interface on the associated node controller Depending on the controller module used you can manage the TAC 2010 using either of two Verilink node management programs or an industry standard SNMP manager Table 1 1 lists the node management programs which can be used with the three types of node controller Verilink TAC 2010 User Manual 1 1 Overview Table 1 1 Node Management Programs Node Controller Module Craft Interface Node Management Programs NCM 2000 Use port labelled Verilink Node Manager or any SNMP manager LOCAL NCC 2020 Use port labelled Verilink Access Manager 2000 or Verilink Node Manager NCC 2130 CRAFT SCC 2020 Use port labelled Verilink Node Manager or any SNMP manager SCC 2130 CRAFT Types of Node Controllers
27. ones Alarm Indication Signal AIS which is often used as a Keep Alive signal on T1 circuits SIGNAL LOSS Loss Of Signal LOS The CSU does not detect any pulses on the port This is the worst possible alarm condition on a T1 port Ignore other alarms and resolve the cause of the LOS first CRC ERRORS Cyclic Redundancy Check errors CRC 6 The CSU detects errors using the CRC 6 feature of ESF framing Applies only to T1 circuits or equipment using ESF framing LOW DENSITY The T1 signal on the port does not meet the required average ones density of 12 5 BPV The CSU is detecting Bipolar Violations on the port Two or more pulses in a row were of the same polarity violating the Alternating Mark Inversion requirement EXT CLK LOSS The CSU is configured to use an external clock signal and that signal is not detected PULSES Not an alarm condition The CSU does see valid pulses on the port When a CSU is in Mux mode PULSES should always be displayed on the equipment side of the menu In Mux mode only synchronous Serial interfaces are used and the CSU does not expect to see any particular framed pattern of pulses Verilink TAC 2010 User Manual 5 3 Diagnostics Diagnostic Commands Table 5 2 There are seventeen command options available on the TAC 2010 diagnostics menu Table 5 2 lists all of these commands Drawings which illustrate the various loopbacks can be found in the manual AS2000 The B
28. pins 1 2 4 and 5 when presented in an RJ 45 connector Use a straight through cable 1 to 1 2 to 2 etc on the network side of the CSU Use a crossover cable on the DSX 1 equipment side The smart jack network termination device may be in a loopback Frame loss In a new installation T1 circuits are often patched out at a carrier s DACS or switch until completely turned up In this case a pattern of unframed all ones AIS is kept on the T1 as a keep alive signal Contact the carrier and request that they normal up the circuit The CSU must be optioned for the same type of framing as the T1 carrier is providing Framing can not be changed arbitrarily by the user Contact the carrier and verify the type of framing used on the T1 CRC errors and BPVs reported on a new installation When a T1 presents symptoms of CRC errors and BPVs with no other alarms it often is traced to problems with wiring inside the customer premise When the smart jack is a considerable distance from the CSU over 50 feet there is the risk that the high level hot signals in the transmit pair will induce echo into the lower level long signals in the receive pair This condition is called crosstalk and is a leading cause of T1 problems As telephone carriers move toward a policy of housing all smart jacks in one location within commercial buildings crosstalk related complaints are becoming more common To prevent crosstalk relate
29. the receive pair for the same signal to be returned This test pattern is valid for all T1 circuit types 4 all 1 Starts all ones pattern The CSU transmits a framed pattern of all ones and monitors receive data for the same pattern Use of this pattern is suggested whenever Because it produces maximum current levels this test is any T1 circuit is especially good at finding some problems like bad repeater tested cards or resistive punchdown connections All ones is a valid test on all T1 circuits L line Initiates a line Line loopback faces the T1 circuit All data received from the loopback T1 circuit is sent back to the T1 circuit This is the same loopback which occurs when a CSU receives a loop up code from the network P payload Initiates a payload Payload loopback faces the T1 circuit like the line loopback loopback eres p A payload loopback passes through more of the CSU circuitry while the line loopback occurs closer to the network port U inband up Sends a standard CSU Under normal circumstances sending the line loop up code loop up code toward the far end CSU will cause the far end CSU to enter a line loopback state D inband down Sends a standard CSU loop down code to the far end CSU Under normal circumstances sending the line loop down code will terminate a line loopback state in the far end CSU Verilink TAC 2010 User Manual 5 5 Diagnostics Front Panel LEDs This section d
30. to n x 56 kbit s as required for an AMI T1 NCC 2130 SCC 2130 TAC 2130 DIU 2131 91 DIU 2130 Unassigns port 1 timeslot s NCC 2130 SCC 2130 TAC 2130 DIU 2131 92 DIU 2130 Unassigns port 2 timeslot s DIU2131 Verilink TAC 2010 User Manual 3 17 Configuration Code Applies to Description 99 NCC 2020 Resets password for the Craft interface to the default condition no NCC 2130 password SCC 2020 SCC 2130 00 ALL Clears the address command Releases currently selected module Use this command if you change your mind after selecting a module in step two or if you select the wrong module accidentally or to practice double clicking 3 18 Verilink TAC 2010 User Manual o Chapter 4 Performance Monitoring Once the TAC 2010 is installed the performance monitoring routines allow you to monitor the performance of the T1 circuit The TAC 2010 maintains a history of the T1 circuit performance for the previous 24 hours and offers the ability to examine various tables Performance statistics can be viewed in a Craft interface session As described by the various technical publications which define ESF Extended SuperFrame the TAC 2010 maintains performance records in 15 minute intervals After a TAC 2010 has been operating for 24 hours there are 96 of these 15 minute intervals stored in the CSU registers Performance Monitoring Menu Most of the information accessible under the Performance
31. zusammengeschaltet sind m ssen weiterhin den Vorschriften EN60950 1992 A4 1997 Absatz 6 2 f r Telecommunications Netz Spannung TNV Schaltkreize entsprechen This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications Le pr sent appareil num rique n met pas de bruits radio lectriques d passant les limites applicables aux appareils num riques de la class A prescrites dans le R glement sur le brouillage radio lectrique dict par le minist re des Communications du Canada The Industry Canada label indentifies CS 03 certified equipment This certification means that the equipment meets certain telecommunications network protective operational and safety requirements Industry Canada does not guarantee the equipment will operate to the user s satisfaction Before installing this equipment users should ensure that it is permissible to be connected to the facilities of the local telecommunications company The equipment must also be installed using an acceptable method of connection In some cases the company s inside wiring associated with a single line individual service may be extended by means of a certified connector assembly telephone extension cord The customer should be aware that compliance with the above conditions may not prevent degradation of service in some situations
32. 020 NCC 2130 SCC 2020 SCC 2130 TAC2010 TAC 2130 Network LBO 15 dB Attenuates transmit signal by 15db USE ONLY IF NO SMART JACK IS PRESENT Implies that the first active device repeater T3 mux far CSU is O to 1000 feet away 50 NCC 2020 SCC 2020 TAC 2010 Selects DSX 1 Equipment cable length of 0 132 ft 51 NCC 2020 SCC 2020 TAC 2010 Selects DSX 1 Equipment cable length of 133 265 ft 52 NCC 2020 SCC 2020 TAC 2010 Selects DSX 1 Equipment cable length of 266 398 ft 53 NCC 2020 SCC 2020 TAC 2010 Selects DSX 1 Equipment cable length of 399 532 ft 54 NCC 2020 SCC 2020 TAC 2010 Selects DSX 1 Equipment cable length of 533 655 ft 55 NCC 2020 SCC 2020 TAC 2010 DIU 2140 Sets data bus to NONE CSU mode default 56 NCC 2020 SCC 2020 TAC 2010 DIU 2140 Sets data bus to A Mux mode 57 NCC 2020 SCC 2020 TAC 2010 DIU 2140 Sets data bus to B Mux mode Verilink TAC 2010 User Manual 3 15 Configuration Code Applies to Description 58 NCC 2020 Sets data bus to C Mux mode SCC 2020 TAC 2010 DIU 2140 59 NCC 2020 Sends in band CSU loop up code to far end CSU This should cause the NCC 2130 far end CSU to enter a Line Loopback condition SCC 2020 SCC 2130 TAC2010 TAC 2130 60 NCC 2020 Sends framed QRSS to far end NCC 2130 SCC 2020 SCC 2130 TAC2010 TAC 2130 61 NCC
33. 1 2 In an AS2000 node only one node controller module is required Additional T1 CSU functions can use TAC 2010 CSU modules Verilink s family of AS2000 node controllers includes the following modules The NCM 2000 is an SNMP node controller It does not contain any type of T1 CSU See the NCM 2000 User Manual for full details The NCC 2020 is a TAC 2010 T1 CSU with the addition of a node controller function See the NCC 2020 User Manual for full details The NCC 2130 is a TAC 2130 IDCSU Integrated T1 CSU DSU with the addition of a node controller function See the NCC 2130 User Manual for full details The SCC 2020 is a TAC 2010 T1 CSU with the addition of an SNMP node controller function See the SCC 2020 User Manual for full details The SCC 2130 is a TAC 2130 IDCSU Integrated T1 CSU DSU with the addition of an SNMP node controller function See the SCC 2130 User Manual for full details Verilink TAC 2010 User Manual Compatible Modules Overview The TAC 2010 defaults to CSU only mode It can be configured to use a shelf midplane to pass channelized data timeslots to an optional DSU module Table 1 2 Compatible DSU Modules Module Type Usage DIU 2130 DSU DSU with two synchronous serial interface ports for connection of Data Terminal Equipment DTE May be used with TAC 2010 including the TAC 2010 portion of an NCC 2020 DIU 2130 DBU DSU DSU with a single synchronous ser
34. 9 Craft Cable p n 458 102119 008 DB 9 female RJ 11 modular Usage pin 3 pin 3 Transmit Data pin 2 pin 4 Receive Data pin 5 pin 5 Signal Ground Log In Log in to the node controller module If you need details on how to log in refer to the user manual for your NCC SCC or NCM controller module The top or Main Menu is displayed Figure 3 1 Typical Controller Main Menu SITE NAME NODE ID 0 SHELF 1 2 3 VERILINK NCC NODE CONTROLLER at 1 1 FW Rev 4 75 lt SLOT gt 4 5 6 7 8 9 10 11 12 13 1M C D C D C D c D 2 3 4 KEY C CSU D DIU F DIU DDS B DIU DBU R SRD IDCSU T TU S SMDS V VCU S shelf slot N near element F far element C configuration P performance D diagnostics 0 node administration M monitor alarms OFF A almto net mgr OFF X system log off 1 1 NEAR TAC 2010 gt Use this menu to navigate from card to card or choose option menus for the current card NOTE Menus shown in this manual are from an NCC module Similar menus are presented by the SCC and NCM type controllers The Main Menu commands are detailed in Table 3 3 3 2 Verilink TAC 2010 User Manual Table 3 3 NCC 2020 Main Menu Commands Configuration Menu Option Description Instructions S shelf slot Used to navigate from module to module within a node Enter the shelf number and slot number of the desired module use a comma de
35. If the test passes consider doing the same test with a different pattern Some patterns will fail on a T1 that passes other test patterns See Table 5 2 for details on the various patterns If the test fails consider one of these alternatives e Use a loopback closer to the local CSU The telephone carrier may be able to put up loopbacks at various locations along the path of the T1 circuit Start at the far end and work your way back to the local CSU e If it appears that the local CSU is defective try using a repeater loopback Send a test pattern while the local CSU is in repeater loopback The test pattern never leaves the CSU because it is receiving what it is sending If this test passes the CSU is probably OK e If aproblem is identified but not resolved by this procedure go on to the next section Troubleshooting Verilink TAC 2010 User Manual 5 9 Diagnostics Troubleshooting Repeater Loopback Tips 5 10 When it is known that a problem exists in a T1 network application a different approach is suggested In the verification procedure above the initial test passed data through the entire T1 circuit including both local and far end CSUs This was done because no troubles were expected With trouble known to exist begin by establishing what is good Start with a repeater loopback test in the local CSU The repeater loopback test takes the transmit data just as it is about to leave the network port of the
36. N 04DU9 BN RJ 48C jack 1 544 Mbit s SF B8ZS 04DU9 DN 1 544 Mbit s ANSI ESF 04DU9 1KN 1 544 Mbit s ANSI ESF B8ZS 04DU9 1SN Ifthe unit appears to be malfunctioning inform the telco and disconnect it from the network lines until the source of trouble is determined to be your equipment or the telephone line If your equipment needs repair it should not be reconnected until it is repaired The unit has been designed to prevent harm to the network If the telephone company finds that the equipment is exceeding tolerable parameters it can temporarily disconnect service In this case the telephone company will provide you advance notice if possible If the telephone company alters its equipment in a manner that can affect the use of this device it must give you warning so that you have the opportunity to maintain uninterrupted service You will be advised of your right to filea complaint with the FCC Verilink TAC 2010 User Manual Lithium Battery English Francais Espa ole Deutsch No customer is authorized to repair this equipment regardless of warranty status All repairs must be performed by Verilink or an authorized agent It is the responsibility of users requiring service to report the need for service to Verilink or to one of our authorized agents The lithium battery referred to in the following notices is contained inside the clock chip DANGER The battery can explode if incorrectly replaced
37. NET TO EQ ESF equipment on a non ESF T1 error checking used J San in ESF framing on 3 EQ TO NET non ESF equipment on an ESF T1 both one or no 4 BOTH use in Drop and Insert mode if equipment and T1 sides are both ESF Y xcode yel Selects whether 1 OFF use for same type framing on both sides or to have yellow alarms will be the CSU drop yellow alarms with dissimilar framing translated from the D4 bit 2 method to 2 NET TO EQ ESF equipment and non ESF T1 the ESF FDL method 3 EQ TO NET D4 equipment on an ESF T1 4 BOTH not used Verilink TAC 2010 User Manual 3 5 Configuration Menu Option Description Instructions M distance Cable length option Choices are 1 0 133 2 133 266 3 266 399 4 399 533 used to increase DSX 5 533 655 Select the value that most nearly equals the 1 signal strength length of the cable between the CSU and the local DSX 1 when DSX 1 cable is equipment long L Ibo Line build out is used 1 0 db use this value if a smart jack network termination to reduce the signal device has been installed by the telephone carrier or if the strength being sent first active device on the T1 is between 2 000 and 3 000 to the T1 network feet away New T1 circuits 2 7 5 db use this value only if there is no smart jack and installed by a the first repeater is 1 000 to 2 000 feet away telephone compan in ae USA will a 3 15 db use this val
38. RS and SIGNAL LOSS NOTE Whenever a T1 CSU reports Signal Loss it will report other alarms as well The other alarms are caused by the signal loss condition Ignore the other alarms and find the cause of the Signal Loss to restore the T1 to service Verilink TAC 2010 User Manual Diagnostics Figure 5 2 Diagnostics Menu CSU DIAGNOSTIC FW Rev 1 4 HW Fab 0 8 Type TAC 2010 Je ALARM FRAME LOSS EEE lt lt eq lt S lt eee ee ee eee flere ee ee ee eee ee lt lt net lt lt l r SIGNAL LOSS la l m CRC ERRORS PULSES l lel l gt gt eq A gt gt a 22 25 X exit menu Y enable loops Z reset alarm T test time 15 SEC __eq loops _ __err counter__ __net signals__ __net loops __ R repeater A show cntr 1 qrss L line E equip B clear cntr 2 3 in 24 P payload 3 lin 8 U inband up N end tests 4 all 1s D inband down 1 5 NEAR TAC 2010 gt Status Messages The status messages which may appear on the Diagnostics Menu are listed in Table 5 1 below Table 5 1 Diagnostic Menu Status Messages Message Meaning ALARM Yellow Alarm RAI The CSU is receiving a Remote Alarm Indication Signal on the port This signal is sent by a device in a red alarm condition such as AIS LOS or LOF FRAME LOSS Out Of Frame OOF The CSU does not detect a valid framed signal on the port If pulses are also present may indicate receipt of unframed all
39. Replace only with the same or equiv alent type recommended by the manufacturer Dispose of used batteries according to the manufacturer s instructions DANGER To avoid electrical shock in case of failure the power supply must be installed by a professional installer The terminal labeled with the ground symbol on the power supply must be connected to a permanent earth ground CAUTION Interconnecting circuits must comply with the requirements of EN60950 1992 A4 1997 Section 6 2 for telecommunications network voltages TNV circuits ATTENTION Une explosion peut se produire si la batterie est remplac e d une facon incorrecte Remplacez la seulement avec le m me mod le de batterie ou un mod le quivalent selon les recommendations de manufacture Disposez de les batteries us es selon les instructions de manufacture ATTENTION Pour viter choc lectrique en cas de insucc s la provision de pouvoir doit tr install par un installeur professionnel Le terminal de la provision de pouvoir mar qu du symbol de terre doit connect a un circuit de terre permanent PRUDENT Les circuits doivent tr interconnect s de mani re ce que quipement continue a tr en agr ment avec EN60950 1992 A4 1997 Section 6 2 pour les circuits de voltage de liaisons d changes r seau par les t l communications TNV apr s les connections de circuits ATTENCION La bateria puede ex
40. Verilink TAC 2010 User Manual October 1999 P N 880 503298 001 Al ll nnn a IOAN ee A A INN Ar x gt 2 N OUT VERILINK Copyright Notice Trademarks FCC Requirements Copyright 1999 Verilink Corporation All rights reserved This document does not create any express or implied warranty about Verilink or about its products or services Verilink s sole warranty is contained in its product warranty The end user documentation is shipped with Verilink s products and constitutes the sole specifications referred to in the product warranty Verilink has made reasonable efforts to verify that the information contained herein is accurate but Verilink assumes no responsibility for its use or for any infringement of patents or other rights of third parties that may result The customer is solely responsible for verifying the suitability of Verilink s products for its use Specifications are subject to change without notice Verilink is a registered trademark of Verilink Corporation Access System 2000 WANscope VeriStats and FrameStart are trademarks of Verilink Corporation Any named products herein are trademarks of their respective companies This equipment has been tested and found to comply within the limits for a Class A digital device pursuant to Part 15 of the Federal Communications Commission FCC rules These limits are designed to provide protection against h
41. ale RJ 45 connector and placing two short jumper wires where a cable would normally go One jumper is placed from pin one to pin five the other jumper connects pin 2 to pin 4 See Figure 5 5 for a drawing of a T1 loopback plug NOTE When using a T1 loopback plug it may be necessary to temporarily change the timing selection in the CSU If the CSU is set to recover network clock it will be trying to recover a clock it is trying to recover The clock frequency will drift For this test set the CSU clock source to Internal Remember to change it back after the test Figure 5 5 T1 Loopback Plug RJ 45 Connector u Cable Side RJ 45 plug held with plastic latching tab unseen at bottom Verilink TAC 2010 User Manual 5 13 Diagnostics 5 14 Verilink TAC 2010 User Manual Numerics 1 in 8 test 5 5 1 544 MHz clock 3 7 24 Hour Bursty Errored Seconds 4 4 24 hour Errored Seconds 4 3 24 Hour Loss Of Frame Count 4 7 24 Hour Severely Errored Seconds 4 5 24 Hour Unavailable Seconds 4 6 3 in 24 test 5 4 458 102119 008 3 2 458 501788 008 3 1 62411 3 6 64K per DSO 3 5 96 fifteen minute intervals 4 3 A A D amp I NET 3 9 Access System 2000 1 1 ALARM 5 3 Alarm reporting 3 8 Alarm Status 5 1 Alarm threshold 3 6 AMI or B8ZS 3 5 AT amp T 54016 3 6 B B8ZS 3 6 balanced clock signal 3 7 bantam jacks 1 3 4 2 busy to a PBX 3 9 C 3 3 Cable length option 3 6 can
42. anges from red to green Type F and press ENTER The prompt for line format appears Line Format eq net 1 AMI AMI 2 AMI B8ZS 3 B8ZS AMI 4 B8ZS B8ZS gt Select 4 for B8ZS since the Equipment side interface is not used selection 2 would also work The default value for the density enforcement selection is not correct for a B8ZS T1 Use the Z command and select 1 to change it to NONE B8ZS was developed to eliminate the need for density enforcement Verilink TAC 2010 User Manual Configuring the DIU 2130 Configuration Menu Quick Set Up 5 For this example a Network Service Provider NSP the phone company is providing a timing signal with a Digital Access and Cross connect System DACS This is usually the case where an inter exchange carrier long distance company is involved When the carrier provides a timing signal all other devices on the T1 must use that signal to derive their transmit clock Use the B command for the DIU timing options and select 5 for NET recovered NETwork clock 6 There are no more changes required to the default CSU configuration to configure this example Use the X command to return to the controller Main Menu For this example the TAC 2010 is used with a DIU 2130 module in slot 6 of a Multi line shelf The TAC 2010 connects directly to the T1 circuit and provides CSU functionality The DIU 2130 presents two synchronous Serial interfaces
43. aning Solid Green The CSU has been loaded with the Test Set 2000 test program using AM2000 Solid A test is in progress and no errors are detected a test signal is Yellow currently being transmitted to the circuit by the CSU and the received pattern matches the transmitted pattern Solid Red Some alarm condition has occurred within the last fifteen minutes on either the Network or Equipment interface Flashing Power up self test has failed Verify that the rear CIM module is Red to Off of a correct type CIM 2010 or CIM 2015 Flashing Errors have been received during a test a test signal is being Red to transmitted and the pattern received does not match the pattern Yellow sent Not Lit No alarms have occurred within the last fifteen minutes This is the normal state for the Stat LED The NET network LED is a tri color indicator with six states as follows Table 5 5 Net LED States State Meaning Solid Green A normal signal is being received from the network all OK Solid The CSU is looped toward the network via a line loopback LLB Yellow or payload loopback PLB and no errors are being received from the network Solid Red Continuous errors are being received on the network interface e g LOS LOF RAI AIS Flashing Bipolar violations or CRC 6 errors are being received on the Red to network interface Green Flashing The CSU is looped toward the network and errors ar
44. anna nnnnnnnnnnn ann 4 4 24 Hour Severely Errored Seconds c cocccccnccoconnconcnncnncnncnnnnarcnnnnncnnnnnnnannninns 4 5 24 Hour Unavailable Seconds VV 4 6 24 Hour Loss Of Frame Count nenn 4 7 Reset Register S tnt un ere nina nee rn 4 7 Diagnostics 00 terne nue een 5 1 Using Diagnostics u na e dense TE 5 1 Verilink TAC 2010 User Manual vi Alarm SEALUS 52 62sec a e ern san rn estate 5 1 Diagnostics Menu as 5 2 Status Messages aaa e 5 3 Diagnostic Commands sis 5 4 Front Panel LEDS coi o iia 5 6 EQPT LED nu el sen 5 6 STAT LED ana A een 5 7 NET LED cio Io ur 5 7 Test Procedure amp s nu an een Ener nern Han eng 5 8 Verifying a Tl Renee en 5 8 Troubleshooting 3 He 5 10 Tips errena a SR 5 10 Verilink TAC 2010 User Manual zu Chapter Scope Installation Information Related Verilink Documents Management Options Overview This user manual describes the TAC 2010 module acomponent of Verilink s Access System 2000 AS2000 platform The TAC 2010 is a T1 Channel Service Unit CSU that can optionally be used with up to 24 Verilink Data Service Unit DSU modules This manual assumes you are already familiar with the AS2000 product line Where appropriate the text refers you to a specific Access System 2000 manual for greater detail For information on installing and replacing shelves modules and power supplies see the manual AS2000 The Basics Refer to the following related AS2000
45. apter 3 Configuration This chapter covers using the Craft interface to configure the TAC 2010 CSU and use of the front panel thumbwheel switches which are present on NCC and SCC type controller modules Using the Craft Interface Craft Port Terminal Setup To access the Craft interface connect a terminal or a computer running a terminal program to the port labeled CRAFT or LOCAL on the front panel of the node controller module Set your terminal parameters to Data Rate 19 2 kbit s Word Size 8 bits Parity None Stop Bits One Flow Control None The Verilink Craft interface does not assert any control leads Verilink provides one of two types of Craft cable Both versions of the Craft cable have an RJ 11 modular connector at one end The original cable has a female DB 25 connector at the other end and a more recent version has a DB 9 female connector Connect the RJ 11 modular connector to the port labeled CRAFT or LOCAL on the front of the node controller module The original Craft cable pinout is shown in Table 3 1 Table 3 1 Verilink Craft Cable p n 458 501788 008 DB 25 female RJ 11 modular Usage pin 2 pin 3 Transmit Data pin 3 pin 4 Receive Data pin 7 pin 5 Signal Ground An alternative Craft cable designed for direct connection to a PC COM port uses DB 9 and RJ 11 connectors See Table 3 2 for pinouts Verilink TAC 2010 User Manual 3 1 Configuration Table 3 2 DB
46. armful interference in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the user manual can cause harmful interference to radio communications There is no guarantee that interference will not occur in a particular installation If this equipment causes harmful interference to radio or television reception which can be determined by turning the equipment off and on try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help This equipment complies with Part 68 of the FCC Rules On the rear side or bottom of the unit is a label that contains the FCC registration number and other information If requested provide this information to the telephone company All direct connections to the network lines must be made using standard plugs and jacks compliant with Part 68 The following tables list the applicable registration jack universal order codes USOCs facility interface codes FICs and service order codes SOCs These are required to order service from the telco For T1 interfaces Port ID REN SOC FIC USOC 1 544 Mbit s SF 6 0
47. asics Diagnostic Commands Menu Option Description Instructions X exit menu Exits to menu above Returns to the TAC 2010 Main Menu Y enable loops Determines whether CSU will respond to received standard CSU loop up codes Normally this selection should be enabled In a telephone carrier central office environment this option might be disabled Z reset alarm Clears alarm history for the current 15 minute interval Extinguishes red LED alarm conditions on front panel of the TAC 2010 CSU after installation or after resolving a service problem T test time Sets the length of time tests and loopbacks will be allowed to run FOREVER is suggested by Verilink ENTER INTERVAL DEFAULT x SEC x MIN x HR FOREVER Type FOREVER or type a numeric value followed by SEC for seconds MIN for minutes HR for hours Example 45MIN R repeater Establishes a repeater loopback Useful for testing local CSU hardware The CSU loops data it is about to transmit back to the receive circuitry Local equipment should see its own signal This test is functionally equivalent to placing a T1 loopback plug into the network port of the CSU E equip Establishes an equipment loopback The local DSX 1 equipment port is looped back directly to the local equipment Useful for verifying cable connections A show cntr Displays test error counter increments for ea
48. ch error detected Used to monitor a test in progress When the CSU transmits a test pattern it expects to receive the same test pattern unaltered either from a loopback or a compatible test signal source B clear cntr Resets test error counter Used to reset the test error counter to zero after a test or before a new test N end tests Ends tests and local loopbacks Used to end any running test patterns as well as terminating any loopbacks in the local CSU 1 qrss Starts QRSS test CSU transmits a Quasi Random test pattern while monitoring the receive pair for the same signal to be returned This test is widely supported by telephone carrier test facilities This test pattern is valid for all T1 circuit types 2 3 in 24 Starts 3 in 24 test CSU transmits a 3 in 24 test pattern while monitoring the receive pair for the same signal to be returned 3 in 24 guarantees that of any 24 bits sent at least 3 will be ones thus strings of twenty one contiguous zeroes are possible Because this pattern may have strings of up to 21 zeroes in a row it may fail on some perfectly good AMI T1 circuits as equipment in the circuit enforces ones density 5 4 Verilink TAC 2010 User Manual Diagnostics Menu Option Description Instructions 3 1in8 Starts 1 in 8 test CSU transmits a 1 in 8 pattern which guarantees one bit of every 8 will be a one while monitoring
49. ctor External T1 Network Timing 1 4 Verilink TAC 2010 User Manual Figure 1 3 LOO XXXXOE LLE NETWORK DB 15 Male T1 Network Port Usage Overview CIM 2015 Back Panel DB 15 Bad NO COM NC EXT TIMING EQUIPMENT Alarm Relay DIN 8 Pin DB 15 Female Connector External Equipment Timing Table 1 4 lists connector details for the front and rear modules Table 1 4 TAC 2010 Connector Ports Port Located Usage Bantam Jacks Front Monitor network signals DSX 1 equipment signals connect T1 test equipment These ports do not reflect line signals unless the module is in CSU mode Use only when in CSU mode DIU bus none The MON pair is used to monitor receive or transmit data and is non intrusive MON NET allows access to the T1 receive data MON EQPT allows access to the CSU transmit data The EQ pair disconnects the DSX 1 equipment and replaces it with the test set Use of EQ IN or EQ OUT will disrupt any service operating on the entire T1 The NET pair disconnects the rest of the CSU from the T1 circuit and allows the test set to replace the CSU Use of NET IN or NET OUT will disrupt any service operating on the T1 Network Rear Connect the T1 line to this port Equipment Rear Connect customer equipment which presents a DSX 1 T1 framed signal often a PBX This port is only used if the module is in CSU mode or drop and insert mode Ext Timing Rear
50. d issues the transmit pair and the receive pair must be isolated from each other The recommended cable for T1 uses individually shielded twisted pairs each pair has shielding around it the cable therefore has two shields inside it one for each pair If shielded twisted pair cable is not available try to route the transmit pair and the receive pair in different cables as they traverse the building If the transmit and receive pairs must be routed through a multi pair cable such as the 25 pair or 50 pair cables found in large office buildings select pairs which are not near each other in the cable Many smart jacks offer an option regeneration This causes the smart jack to increase the amplitude of the signal received from the network before handing it off to the CSU Try to get the carrier to turn on this option CRC errors ESF T1 circuits offer CRC 6 error checking as a means of detecting changes in data which occur on the T1 circuit If CRC errors are reported the errors are occurring at some point between the two CSUs Verify in house wiring as indicated above Contact the carrier and request they monitor the circuit Carriers can monitor a T1 circuit for CRC errors without disrupting user data Verilink TAC 2010 User Manual 5 11 Diagnostics Trouble Suggestion Alarm When a Verilink AS2000 CSU reports ALARM in the Craft interface it is receiving a yellow alarm RAIS on that port
51. despite what the menu may indicate Any DIU 21xx modules present in the shelf are ignored in terms of data flow A TAC 2010 is in CSU mode whenever the DIU bus option is set to NONE A typical use of CSU mode would be for voice only PBX applications In Mux mode the DSX 1 equipment port is not used All 24 timeslots of the T1 signal are available for use by some number of DIU 21xx module s assigned to the CSU The CSU is configured to use one of the three data busses in the midplane of the shelf Any associated DIU 21xx modules use this bus to accept receive data from and present transmit data to the CSU The CSU multiplexes data from up to 24 ports on up to 24 DIU modules into the T1 transmit datastream Verilink TAC 2010 User Manual Drop and Insert Mode Configuration A TAC 2010 module is in Mux mode when the DIU bus option is set to A B or C A typical use of Mux mode would be for data only applications Drop and Insert mode combines the features of CSU mode and Mux mode The DSX 1 equipment port is used for some of the T1 timeslots and data bus A is used to pass other timeslots to some DIU 21xx module s Since the CSU cannot control the transmit data rate of the DSX 1 equipment the CSU is usually configured to recover transmit clock from the DSX 1 datastream THRU timing Drop and Insert mode is established by selecting A D amp l NET for the DIU bus option When this is done a new option field appears in the Conf
52. e being Red to received BPV or CRC 6 Yellow Not Lit The CSU has no power or if other LEDS are lit the CSU is defective Verilink TAC 2010 User Manual 5 7 Diagnostics Test Procedures Verifying a T1 5 8 Far End Loop Testing can be be divided into two categories e Tests which are conducted to verify an installation where no known problems exist e Tests which result from an effort to troubleshoot a problem known to exist Two procedures are described below e In the section Verifying a T1 a method is described to test a T1 circuit when it is expected that no trouble will be found e In the section Troubleshooting a suggested method for finding T1 problems is detailed For this procedure a pattern is sent from a local CSU through the entire transmit path of the T1 circuit to a loopback in afar end CSU then back through the other direction of the T1 circuit First aloop up code is sent then a test pattern is transmitted The data received from the T1 circuit will be compared to the data which was transmitted If the data received is identical to the data which was transmitted the T1 is good and may be placed into service To begin the verification use the Inband Up command on the Diagnostics Menu This causes the local CSU to transmit a loop up code towards the far end CSU Figure 5 3 Sending Loop up Code Loop up code gt Local TAC 2010 Far CSU
53. escribes the function of the TAC 2010 LED indicators EQPT LED 5 6 The EQPT equipment LED is atri color indicator with six states as follows Table 5 3 Equipment LED States State Meaning Solid Green The signal being transmitted by the local DSX 1 equipment is OK or the TAC 2010 card is configured for Mux mode in Mux mode the EQPT LED is always green Solid Yellow The TAC 2010 is in a loop which faces the Equipment port Repeater Loopback or Equipment Loopback Solid Red A continuous error condition exists Loss Of Signal Loss Of Frame Alarm Indication Signal Remote Alarm Indication Signal in the signal or lack of a signal being transmitted by the local DSX 1 equipment Flashing Bipolar Violations CRC 6 Errors or a low density condition Red to Off have been detected in the local DSX 1 equipment transmit signal Flashing The CSU is looped toward the equipment RLB ELB and errors Red to are detected in the data stream being transmitted by the Yellow equipment Not Lit The CSU has no power or if other LEDS are lit the CSU is defective NOTE Solid Red events take priority over Flashing Red events except when a loopback is enabled Verilink TAC 2010 User Manual STAT LED NET LED Diagnostics The STAT CSU status LED is a tri color indicator with six states as follows Table 5 4 Stat LED States State Me
54. for connecting the Data Terminal Equipment DTE and provides DSU functions To configure the DIU 2130 first select it The S shelf slot command is used to navigate from one module to another Type S and press ENTER The prompt for selecting another module appears Type 1 6 and press ENTER The prompt line returns as 1 6 DIU 2130 UPDATE gt this indicates that the DIU 2130 in slot 6 has been selected NOTE Whenever the word UPDATE appears in the command line prompt it indicates that some information has changed since the screen was last refreshed To refresh the screen with current information simply press ENTER Type C and press ENTER to select the DIU 2130 Configuration Menu There is a brief delay as the node controller module attempts to communicate with a CSU module in Shelf 0 Slot O This is the default value for CSU assignment in anew DIU 2130 module NOTE An address of Shelf 0 Slot O is not a valid address Modules are shipped this way so they may be added to a shelf without interfering with any existing applications An error message appears No response from csu 0 0 The error message in this case means that the DIU 2130 is new and has not assigned to a CSU module Ignore this error message Verilink TAC 2010 User Manual 2 5 Quick Set Up Then the DIU 2130 Configuration Menu is displayed Figure 2 4 DIU 2130 Configuration Menu DIU 2130 S save config C CSU
55. g YES 1 6 DIU 2130 gt Lead toggles are used to determine whether the control leads on the synchronous serial interface will function in the normal way or be forced on When the DTE does not assert control leads they can be forced on by typing the three letter abbreviation of the control lead For this example the default values are appropriate Mode is used to determine the data rate of each of the timeslots assigned to the port For an AMI T1 circuit the mode must be 56K For the B8ZS T1 used in this example 64K gives the user greater throughput Use the M1 and M2 commands to set both data ports to 64K per DSO The remaining options are correct for this example The T1 circuit and DTE should now be connected Once the CSU has been connected to the T1 circuit for at least fifteen minutes meaningful performance statistics will be available under the Performance Menu See Chapter 4 for more details Verilink TAC 2010 User Manual 2 7 Quick Set Up 2 8 Within 15 seconds of connecting the T1 circuit the NET LED on the front of the TAC 2010 should change from red to green If it does not the Diagnostics Menu may be used for troubleshooting See Chapter 5 for more information on diagnostics For more information on DIU 2130 modules see the DIU 2130 User Manual The configuration options for the TAC 2010 are covered in detail in Table 3 4 in Chapter 3 of this manual Verilink TAC 2010 User Manual Ch
56. ial interface port and modified firmware which uses the second port to switch the DTE data from port 1 to an external Dial Back Up device which must be configured to dial on DTR DIU 2130 DSU DSU with two synchronous serial interface ports and support for routing 56K NMS of individual timeslots in the telco cloud to remote sites with 56K DDS circuits Uses a shelf midplane to receive transmit data to a CSU module DIU 2140 Sub Rate DSU with five RS 232 interface ports each individually selectable for sync Data or async data which are multiplexed into a single timeslot DSO of the Multiplexer associated T1 CSU Uses a shelf midplane to receive transmit data to a 5 port DSU CSU module Components TAC 2010 Front Panel The complete TAC 2010 assembly consists of a front panel module and a rear panel connector interface module CIM together occupying asingle shelf slot position accessible from the front and back of the AS2000 shelf The CIM is installed from the rear of the shelf into the backplane The TAC 2010 front module is installed from the front The CIM is always installed first and removed last The TAC 2010 module is installed last and removed first using the dual ejector handles The TAC 2010 front panel provides LED indicators and signal access jacks It has dual ejector levers to aid installation and removal of the module NOTE The bantam type signal access jacks provide access to internal signals within the
57. iguration Menu beneath the PRM field as shown in Figure 3 3 Figure 3 3 Select D amp I DSOs Field A diu bus A D amp I NET P prm OFF D select D amp l DS0s 1 24 G Alarm ENABLE This field is used to select the timeslots for data use Any timeslots shown in this field are placed on data bus A for use by a DIU 21xx module The DSX 1 equipment will receive a framed all ones signal in those timeslots making them appear busy to a PBX Timeslots not listed in this field are allowed to pass unmodified to the DSX 1 equipment Verilink TAC 2010 User Manual 3 9 Configuration Clearing Configuration To reset a TAC 2010 to its factory default configuration interrupt the battery used to protect stored configuration information There have been three different versions of the TAC 2010 module Each requires a different method for interrupting the battery backup of stored options Identifying Your Use this procedure to determine which of the three versions of TAC Card 2010 module you have 1 Does the front panel of the TAC 2010 have an RJ 11 modular connector a Yes You have an original or intermediate version of the card Proceed to step 2 b No You have the latest version of the TAC 2010 use Procedure 3 Current 2 The battery is located on the component side of the TAC 2010 module directly behind the three LEDs Is the battery ina black plastic socket a Yes You have an original version TAC 2010
58. in Current Interval 830 LOFC in Current Interval 0 0 49 0 65 0 81 0 0 50 0 66 0 82 0 0 51 0 67 0 83 0 0 52 0 68 0 84 0 0 53 0 69 0 85 0 0 54 0 70 0 86 0 0 55 0 71 0 87 0 0 56 0 72 0 88 0 0 57 0 73 0 89 0 0 58 0 74 0 90 0 0 59 0 75 0 91 0 0 60 0 76 0 92 0 0 61 0 11 0 93 0 0 62 0 78 0 94 0 0 63 0 79 0 95 0 0 64 0 80 0 96 0 Reset Registers The Reset Registers command on the Performance Monitoring Menu is used to clear out all of the accumulated information being held in the ESF registers All of the values in the displays available from the Performance Monitoring Menu are reset to zero the number of valid intervals is reset to zero A typical use of this option would be after installation If a T1 facility has been serviced and it is believed that any problems have been corrected it may be desirable to reset the registers so that any errors reported are known to be new Verilink TAC 2010 User Manual 4 7 Performance Monitoring 4 8 Verilink TAC 2010 User Manual o Chapter 5 Using Diagnostics Alarm Status Diagnostics While installing the TAC 2010 or after it has been placed into service the diagnostic routines allow you to troubleshoot or verify the T1 circuit and Verilink equipment The front panel of the TAC 2010 has three LEDs which give a visual indication of alarm conditions Display elements on the Diagnostics Menu give current information about alarm
59. ing CSU detects no error These types of errors are caused by a broken phase relationship between the transmit clock provided by the DSU and the transmit data provided by the DTE If errors of this type are reported try changing the ST vs INV ST selection for DSU clocking in the DSU at the opposite end of the circuit For more information on DTE clocking issues see the DIU 2130 User Manual Loopback Plug For a completely reliable test of aCSU make a T1 loopback plug and plug it in to the network port The CSU will now receive the signals it is sending If the CSU is sending a defective signal it will receive a defective signal and declare an alarm If the receive circuitry is defective such that it cannot decode a good signal it will be unable to decode the signal it is transmitting and will declare an alarm Thus if a T1 CSU does not declare any alarms with a loopback plug in lieu of the T1 circuit the CSU is not defective This does not rely on any tests built in to the product thereby producing a higher confidence level in the results of the test Verilink TAC 2010 User Manual Diagnostics With a loopback plug in the network port any customer equipment connected to the TAC 2010 or a data port of any DIU module assigned to the CSU should see a loopback condition If the customer equipment can report errors it should indicate that no errors are being received A T1 loopback plug can be made by taking a m
60. lay a line across the screen lists all 24 timeslots The DSO timeslot selection prompt appears at the beginning of the next line Dp The lowercase p is a variable instead of typing p use a port number 1 or 2 For this example timeslots 1 through 12 are to be used on data port number 1 and timeslots 13 through 24 are to be assigned to data port number 2 Type D1 the prompt enter port 1 channels gt appears Verilink TAC 2010 User Manual Quick Set Up Type 1 12 This assigns timeslots one through twelve to data port number one Now type D2 the prompt enter port 2 channels gt appears Type 13 24 Press ENTER by itself to refresh the display with the new DSO assignments Figure 2 5 DIU 2130 Configuration Menu DIU 2130 CONFIGURATION DIAGNOSTIC MENU S save config Q restore config X exit menu C CSU 15 T timing source CSU chnl 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Dp port 01 01 01 01 01 01 01 01 01 01 01 01 02 02 02 02 02 02 02 02 02 02 02 02 Lead Toggles DTR DSR RTS CTS DCD Forced Ports fs l Port 1 Port 2 Statistics Mp mode 56K 56K FW HW Rev 1 6 0 8 Sp scram hdlc inv N N N N Battery OK Kp clocking ST ST DTE Intf V 35 V 35 Gp LOS lead NONE NONE Data bus A Ep enable loop YES YES Tp test and monitor BEC Np near loopback OFF OFF Pp monitor leads and status Fp far loopback OFF OFF A enable alarm reportin
61. limiter 1 2 N near element Selects the local node Used to return from a far end element session F far element Selects the CSU at the remote end of the T1 circuit connected to the current module functions only if ESF FDL has continuity Once you have navigated to the remote CSU you may configure or troubleshoot that module only You will not be able to navigate to other modules in that node unless you are using an SCC type controller module C configuration Selects the Configuration Menu See Figure 3 2 and Table 3 4 below P performance Selects the Performance Menu See Chapter 4 of this manual D diagnostics Selects the Diagnostics Menu See Chapter 5 of this manual O node administration Selects the Node Administration Menu See the user manual for your node controller module M monitor alarms Toggles on off the monitor alarms function If monitor alarms is ON alarm messages are displayed on the Craft interface as they occur No alarm messages are displayed if monitor alarms is OFF A alm to net mgr Enables or disables sending alarms to a network management program See the user manual for your node controller module and network management program Select OFF if there is no path to a network management program Select ON if you are using either Access Manager 2000 or Node Manager and this NCC module is to send alarms to the network
62. manager PC X log off Exits the Main Menu The user is logged off Configuration Menu Inthe Main Menu shown in Figure 3 1 the element C is selected The letter C is defined in the menu key as a CSU For acard in slot 1 of shelf 1 this is an NCC 2020 or SCC 2020 The T1 CSU portion of an NCC 2020 or SCC 2020 is a TAC 2010 card Once an NCC or SCC is installed in a node additional T1 CSU requirements are met by adding TAC 2010 modules Each node group of shelves connected together must have only one type of controller card The first such card should be located in slot 1 of shelf 1 If additional CSU cards are needed use TAC 2010 cards instead of adding more NCC or SCC cards Therefore a C located in the slot 1 shelf 1 position represents an NCC 2020 or SCC 2020 while a C located at some other position represents a TAC 2010 Verilink TAC 2010 User Manual 3 3 Configuration Use the command C to display the Configuration Menu for the element Figure 3 2 CSU Configuration Menu CSU CONFIGURATION ee lt lt eq framing format jitt buf eq crc xcode yel distance SF AMI 40 BITS REGEN TO NET 0 133 X 5 exit menu save csu config A P diu bus NONE prm OFF 1 1 NEAR TAC 2010 gt FW Rev 1 4 HW Fab 0 8 K keep alive T almthld Type TAC 2010 framing format jitt buf net crc xcode yel 1b0 density AMI 40 BITS
63. module If the TAC 2010 is being used with any type of DIU DSU module the signals on the bantam jacks will NOT reflect line signals and this jack field should not be used Verilink TAC 2010 User Manual 1 3 Overview Figure 1 1 TAC 2010 Front Panel Modular jack Equipment present on early Status and versions only Network LEDs Never used Signal access jacks bantam F EQPT STAT NET z 2588 IN OUT IN OUT net eqpt O O O The TAC 2010 front panel has e Three LEDs status indication e Three pairs of bantam jacks see note above e Early versions of the TAC 2010 had an RJ 11 modular connector which is not used TAC 2010 CIMs The TAC 2010 front module must be installed with a rear connector module which provides interface ports The following table lists the connector modules that can be paired with the TAC 2010 T1 CSU front module Table 1 3 TAC 2010 Connector Interface Modules Connector Interface DSX 1 Port Net Port Front Module Module Connector Connector TAC 2010 T1 CSU CIM 2010 RJ 48C RJ 48C CIM 2015 DB 15 DB 15 The following illustrations show the connector interface modules used with the TAC 2010 Figure 1 2 CIM 2010 Back Panel RJ 48C ALARM RELAY gt NO COM NC EXT TIMING w 2 yz a e x x x x e o 2 RJ 48C Alarm Relay DIN 8 Pin RJ 48C Equipment Conne
64. ned config 3 7 Canned configuration 3 7 3 14 CIM 1 3 CIM 2022 1 4 CIM 2052 1 5 CIMs 1 4 clear cntr 5 4 Clearing Configuration 3 10 Configuration 3 1 configuration 3 3 Connecting Terminal 2 2 Craft Cable 3 1 Craft Interface 3 1 CRC ERRORS 5 3 CRC 6 error checking 5 11 crosstalk 5 11 CSU loops 5 4 CSU Mode 3 8 CSU mode 3 7 D D amp I NET 3 7 data bus A 3 7 Index data bus B 3 7 data bus C 3 7 DB 9 Craft Cable 3 2 density enforcement 3 6 derives transmit clock 3 7 Diagnostic Commands 5 4 Diagnostics 5 1 Diagnostics Menu 5 2 distance 3 6 diu bus 3 7 diu clock 3 7 download 3 12 Firmware upgrades 3 12 Drop and Insert mode 3 7 DTE reports errors 5 12 E EEPROMS 3 12 ejector 1 3 enable loops 5 4 end tests 5 4 EQPT LED 3 7 equipment loopback 5 4 ES 4 2 Establish a loopback 5 1 EXT 422 3 7 EXT CLK LOSS 5 3 EXT TTL3 7 external clock 3 7 F factory default 3 10 far element 3 3 Far End Loop 5 8 far end polling 3 8 FDL 3 FOREVER 5 4 format 3 5 FRAME LOSS 5 3 framed pattern of all ones 5 5 framing 3 5 frequency will drift 5 13 Front Panel 1 4 Front Panel LEDs 5 6 IDCSU 1 2 idle code 3 6 inband down 5 5 inband up 5 5 INT clock 3 7 internal oscillator 3 7 Jitter Buffer 3 5 K keep alive 3 6 Verilink TAC 2010 User Manual Index 1 L IbO 3 6 least serious 4 3 LED blinks amber to red 5 10 EQPT LED 5 6 NET LED 5 7 STAT LED 5 7 Line build out 3 6 Line loo
65. nnnnnnnnnnnnnnnnnnnnnnnnnn 1 1 Management Options issues 1 1 Types of Node Controllers ss 1 2 Compatible Modules nie en kennen 1 3 Components usb else 1 3 TAC 2010 FrontPanel naci ennemie 1 3 TAC 2010 CIMS ci iR El 1 4 ud 0 neh USAGE aaa RUE PEEPEREREUEFE RUE FERPRLEPRTLERLEOLDERELLEPFFEDTELTREFRLFEFPEPEPREFRERFEPFRUOFERRETR 1 5 QUICK SetUD La td EI basen hoe 2 1 Connect Lo Craft Pork nn ea 2 2 o A 2 2 Select the CSU nr ae ee re ee 2 3 CSU EohfigufatioNn uses a 2 3 Configuring the DIU 2130 on ea ae 2 5 COMTIQURATION perimta een ee 3 1 Using the Craft intekf ce ui cta ein ira 3 1 Craft Port Terminal Setup ss 3 1 LOG 1 0 erreneren Aiaia a acia 3 2 Configuration Menu ee een ad teed 3 3 Configuration Menu Commands nn 3 4 ee Le eo 3 8 Clearing Configuratio Niera a ar a aia cd ici 3 10 Identifying Your Card uussssssennnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn nenn 3 10 Firmware Upgrade Procedures sis 3 12 Replacing the EEPROM 1 en anne hs 3 12 Network Management Programs cooccccnncccnnnnccnnnnnnnonnnnncnnnnnnonnnaconnnnncnnnninns 3 13 Thumbwheel Switches sise 3 13 Thumbwheel Procedure sise 3 13 Thumbwheel Commands ss 3 14 Performance Monitoring use 4 1 Performance Monitoring Menu us 4 1 D FINITIONS an en re due 4 2 One Hour Network said onda nara oa aoe ee 4 2 24 hour Errored Seconds cece te renee nnnnnnnnnnnnnnnnn 4 3 24 Hour Bursty Errored Seconds ecceceeeeeeeee ee nenn nnnnn
66. ormance response messages received from the network are ignored No messages are sent 2 USER Performance response messages are allowed responses and information stored in the user ESF registers is made available Used by pro active carriers O poll far end If enabled on a point to point ESF T1 far end polling can monitor alarms at a remote CSU 1 yes far end polling is used Requires FDL continuity from end to end A DACS in the T1 usually terminates the FDL making this unusable Note that ESF is required to use this option 2 no far end polling is not supported G Alarm Determines whether or not alarm messages are presented O Disable Alarm reporting is turned off 1 Enable Alarm reporting is enabled Messages will appear on the Craft terminal as alarms occur and clear X exit menu Exit this menu Returns to the TAC 2010 Main Menu Mode CSU Mode Mux Mode 3 8 The TAC 2010 CSU has three distinctly different modes of operation e CSU Mode e Mux Mode e Drop and Insert Mode The mode is determined by the selection for DIU bus on the Configuration Menu In CSU mode the TAC 2010 does not use any data bus in the shelf to pass data to any other module All 24 timeslots in the T1 signal are passed unmodified to the DSX 1 equipment port In the transmit direction the DSX 1 device is the timing source and the CSU behaves as if THRU timing is selected
67. pback 5 5 LOFC 4 2 log off 3 3 Logging On 3 2 Login 2 2 Loopback Plug 5 12 loop down code 5 5 loop up code 5 5 loss of all user data 4 7 Loss Of Frame Count 4 2 LOW DENSITY 5 3 M Main Menu 2 3 Main Menu Commands 3 3 Mode 3 7 Mux Mode 3 8 Mux mode 3 5 3 7 N near element 3 3 network provides a clock 3 7 network termination device 3 6 node 3 3 Node Administration 3 12 O One Hour Network 4 2 ONE HOUR PERFORMANCE DATA 4 2 P Payload loopback 5 5 Performance Response Messages 3 8 phase relationship 5 12 poll far end 3 8 prm 3 8 PULSES 5 3 Q QRSS test 5 4 Quick Set Up 2 1 R regenerate CRC 3 5 regeneration 5 11 repeater 5 4 Repeater Loopback 5 10 Replacing EEPROMs 3 12 reset alarm 5 4 Reset modem interface 3 14 Reset Registers 4 7 reset the test error counter 5 4 restore csu config 3 7 S save csu config 3 7 select D amp I DSOs 3 9 Sending A Pattern 5 9 Sending Loop up Code 5 8 Index 2 SES 4 2 shelf slot 3 3 shielded twisted pairs 5 11 show cntr 5 4 Signal Loss 5 2 smart jack 3 6 ST vs INV ST 5 12 Status Messages 5 3 T T1 framing 3 5 T1 loopback plug 5 12 T1 403 3 6 TAC 2010 1 2 TAC 2130 1 2 Terminal 2 2 Terminal Setup 3 1 Test Error Counter 5 9 test error counter 5 4 test fails 5 9 test passes 5 9 test time 5 4 THRU 3 7 Tips 5 10 TIU 2850 3 7 Transcode Yellow Alarms 3 5 Transmit Clock 3 7 Troubleshooting 5 10 Troubleshooting Tips 5 11
68. plotar si se reemplaza incorrectamente Reemplace la bateria con el mismo tipo de bateria 6 una equivalente recomendada por el manufacturero Dis ponga de las baterias de acuerdo con las instrucciones del manufacturero ATTENCION Para evitar contacto con circuitos que electrocutan la fuente de alimentaci n debe ser instalada por un t cnico profesional La terminal de la fuente de alimentaci n marcada con el s mbolo de tierra debe ser conectada a un circuito de vuelta por tierra permanente PELIGRO Circuitos que se interconectan a la red de telecomunicaciones deben hacerse de tal manera que cumplan con los requisitos estipulados en las especificaciones EN60950 1992 A4 1997 Secci n 6 2 para los voltages de circuitos interconnectados a la Red de Telecomunicaciones TNV despues de terminar las connecciones entre os circuitos VORSICHT Explosionsgefahr bei unsachgem em Ersetzen der Batterie Batterie gleichen Typs und gleicher Qualit t benutzen wie vom Hersteller empfohlen Entsorgung der Batte rie nach Anweisung des Herstellers Verilink TAC 2010 User Manual iii Canadian Requirements Safety Precautions VORSICHT GEFAHR Um keinen Schlag zu erhalten beim Versagen der electrischen Anlage muss der Stro manschluss von einem Elektriker vorgenommen werden Der elektrische Pol verse hen mit dem Erdsymbol muss am Stromanschluss permanent geerdet sein VORSICHT Schaltungen die in den Ger ten
69. rily removing this jumper then re inserting it the module is reset to the default configuration See Figure 3 6 Figure 3 6 Current Version WT4 Battery Backup Enable when jumped Remove jumper from pins 1 amp 2 and reinstall jumper onto pins 1 amp 2 we a a Battery m re Perl il ii a om 0 M Br EQPT NET MON gt NET EQPT J IN OUT gt IN OUT Firmware Upgrade Procedures Firmware upgrades to a TAC 2010 may be done in two ways e Replacing the socketed EEPROM which holds the CSU firmware e Using either Access Manager 2000 or Node Manager to download new code to the module Replacing the The TAC 2010 CSU firmware resides in a socketed EEPROM EEPROM e In a TAC 2010 module which has an unused RJ 11 modular connector on the front panel older versions the firmware resides in socket U11 e In a TAC 2010 module which does not have an RJ 11 connector on the front panel current version the firmware resides in socket U12 3 12 Verilink TAC 2010 User Manual Network Management Programs Configuration Contact Verilink Technical Support if you require a firmware upgrade Both Access Manager 2000 and Node Manager offer download procedures which may be used to upgrade the TAC 2010 CSU For details on using Access Manager 2000 to upgrade a TAC 2010 refer to the Access Manager 2000 User Manual For details on using Node Manager to upgrade
70. s sent in Facilities Data Link when no other traffic is present Z density Selects density 1 NONE no density enforcement Use this value only and enforcement always on a B8ZS T1 technique E 2 12 The CSU begins stuffing ones into the user Density should datastream after 12 consecutive zeroes always be set to ONE on aB8zST1 3 62411 The CSU enforces AT amp T publication 62411 B8ZS allows a full density restrictions average 12 5 minimum ones density 64K per DSO 4 80 0 s The CSU begins stuffing ones into the user Density should never datastream after 80 consecutive zeroes recommended aris NONE on an 5 15 0 s The CSU begins stuffing ones into the user datastream after 15 consecutive zeroes 3 6 Verilink TAC 2010 User Manual Configuration Menu Option Description Instructions C1 C5 canned config Allows selection of any of five complete configurations which all use CSU mode no DIU 21xx and vary according to framing and line coding on EQ and Net sides Canned configuration 1 EQPT SF AMI NET SF AMI Canned configuration 2 EQPT ESF AMI NET ESF AMI Canned configuration 3 EQPT SF AMI NET SF B8ZS Canned configuration 4 EQPT SF B8ZS_ NET SF B8ZS Canned configuration 5 EQPT ESF B8ZS NET ESF B8ZS S save csu config Stores the current CSU configuration Configuration information for other modules in the node can be saved in non volatile RAM in the
71. t has been dropped or if the cabinet has been damaged Verilink s product warranty covers repair or replacement of all equipment under normal use for a five year period from date of shipment Replacement products may be new or reconditioned Any replaced or repaired product or part has a ninety 90 day warranty or the remainder of the initial warranty period whichever is longer Our in house Repair Center services returns within ten working days Verilink offers the following services System Engineers at regional sales offices for network design and planning assistance 800 837 4546 Technical Assistance Center for free 24x7 telephone support during installation maintenance and troubleshooting 800 285 2755 and support verilink com To return a product it must be assigned a Return Materials Authorization RMA number before sending it to Verilink for repair 800 926 0085 ext 2282 Maintenance contracts and leasing plans 800 837 4546 Technical Training on network concepts and Verilink products 800 282 2755 and training verilink com Web site www verilink com This manual was written and illustrated by Steve Rider Contributing Writers and Editors Dave Fradelis David Gardner Marie Metivier and Barbara Termaat Verilink TAC 2010 User Manual Vv vi Verilink TAC 2010 User Manual Table of Contents OvervieW u LED aia 1 1 SCODE aka ne AA aes 1 1 Related Verilink Documents cece tee e eee eee e nenne
72. t use liquid cleaners or aerosol cleaners Use a cloth slightly dampened with water Do not place this product on an unstable cart stand or table It may fall causing serious damage to the product Slots and openings in the shelves are provided for ventilation to protect them from overheating These openings must not be blocked or covered Never place this product near a radiator or heat register This product should be operated only from the type of power source indicated on the marking label and manual If you are unsure of the type of power supply you are using consult your dealer or local power company Do not allow anything to rest on the power cord Do not locate this product where the cord will interfere with the free movement of people Verilink TAC 2010 User Manual Product Warranty Customer Service Publications Staff Do not overload wall outlets and extension cords as this can result in fire or electric shock Never push objects of any kind into the shelves They may touch dangerous voltage points or short out parts that could result in fire or electric shock Never spill liquid of any kind on this equipment Unplug the equipment from the wall outlet and refer servicing to qualified service personnel under the following conditions e When the power supply cord or plug is damaged or frayed e If liquid has been spilled into the product e If the product has been exposed to rain or water If the produc
73. this chapter as a guide to the process of installing your equipment Chapter 3 provides complete details on configuration covering all selectable options Verilink TAC 2010 User Manual 2 1 Quick Set Up Connect to Craft Port Login 2 2 Connect the modular RJ 11 end of the Craft cable to the port labeled CRAFT or LOCAL on the front panel of the node controller module The node controller module is usually installed in slot 1 of shelf 1 Connect the other end of the Craft cable to your PC or terminal If your PC has a DB 9 COM port connector use a standard PC AT serial cable to complete the connection Set your terminal or terminal program to 19 2 kbit s 8 data bits no parity one stop bit and no flow control 1 Press ENTER 2 If the node controller module is an NCC 2020 or NCC 2130 skip to step 5 otherwise proceed to step 3 3 If the node controller module is an NCM 2000 SCC 2020 or SCC 2130 the prompt pSH gt is presented 4 Type craft use lowercase and press ENTER 5 The prompt YOUR PASSWORD is displayed 6 Initially there is no password Press ENTER 7 The Main Menu for the controller module is displayed See Figure 2 2 NOTE The example screens in this chapter are from an NCC 2020 controller module If you are using an NCM or SCC type of node controller the screens presented will be slightly different Verilink TAC 2010 User Manual Quick Set Up Figure 2 2 NCC 2020 Main Menu
74. to data port 2 data port 2 ignored by TAC 2130 SCC 2130 TAC 2130 83 DIU 2130 Canned configuration 3 assigns timeslots 1 8 to data port 1 and NCC 2130 timeslots 9 16 to data port 2 data port 2 ignored by TAC 2130 SCC 2130 TAC 2130 84 DIU 2130 Canned configuration 4 assigns timeslots 1 6 to data port 1 and NCC 2130 timeslots 7 12 to data port 2 data port 2 ignored by TAC 2130 SCC 2130 TAC 2130 85 DIU 2130 Canned configuration 5 assigns timeslots 1 4 to data port 1 and NCC 2130 timeslots 5 8 to data port 2 data port 2 ignored by TAC 2130 SCC 2130 TAC 2130 86 DIU 2130 Canned configuration 6 assigns timeslots 1 2 to data port 1 and NCC 2130 timeslots 3 4 to data port 2 data port 2 ignored by TAC 2130 SCC 2130 TAC 2130 87 DIU 2130 Canned configuration 7 assigns timeslots 1 23 to data port 1 and NCC 2130 timeslot 24 to data port 2 data port 2 ignored by TAC 2130 SCC 2130 TAC 2130 88 DIU 2130 Sets DTE port s clock to TT The data port samples Transmit Data NCC 2130 during the negative going transition of a clock received from the DTE SCC 2130 on the pair Terminal Timing in RS 422 SCTE in V 35 or XTC in RS TAC 2130 232 DIU 2131 89 DIU 2130 Sets DTE port s clock to inverted ST ST The data port samples the NCC 2130 Transmit Data lead during the positive going transition of the transmit SCC 2130 clock signal TAC 2130 DIU 2131 90 DIU 2130 Sets DTE ports
75. ue only if there is no smart jack and smart jack use Odb the first repeater is zero to 1 000 feet away K keep alive Selects the method 1 none no method of keep alive is used in the absence of used to guarantee a valid framed DSX 1 signal Do not use this value on a T1 sufficient pulse circuit provided by a telephone company density is sent to the T1 ES the DSX 1 2 loop when the DSX 1 signal fails the CSU loops data equipment has failed received from the T1 back toward the T1 to meet pulse or is disconnected density requirements The value none 3 ais the CSU sends a pattern of unframed all ones Alarm should not be used _ ndication Signal to the network during a DSX 1 equipment on a commercial T1 __ failure thus alerting the carrier and far end equipment to circuit as it violates trouble on the T1 Br ee amp T 4 fais the CSU sends a framed pattern of all ones This 5 an should not create a T1 level alarm but voice switching T1 403 equipment will see all 24 timeslots in a busy state at the far end T alm thid Selects enabling or 1 disable Alarm threshold function is shut off disabling thresholds 3 2 default Default values for alarm thresholds are enabled 1 idle code Selects idle pattern to 1 flag s idle code of 01111110 is sent in Facilities Data be sent in 4K FDL Link when no other traffic is present used for ESF circuits win only No effect on SF 2 one s idle code of 11111111 i
76. vide a clock then NET recovered network clock is required datastream of the DSX 1 equipment automatically selected in CSU mode recommended in Drop and Insert mode and invalid in Mux mode 2 INT The CSU uses an internal oscillator to generate a 1 544 MHz clock Used only in Mux mode and then only at one end of a T1 on which the carrier uses no DACS 3 EXT 422 The CSU uses a balanced clock signal provided by an external source through the DIN connector on the rear connector module 4 EXT TTL The CSU uses an unbalanced OV to 5V clock signal provided by an external clock source through the DIN connector on the rear connector module 5 NET The CSU uses the clock recovered from receive data on the T1 network port for the transmit clock this is most often the desired option in Mux mode and is required if the network provides a clock uses a DACS 6 EQ The CSU recovers the DSX 1 T1 transmit clock to time the network transmit 7 TIU The CSU uses a clock on data bus C produced by an optional TIU 2850 module installed in the same shelf 8 DIU The CSU uses a clock provided by DTE connected to a data port on a DIU 213x module Tail circuit timing requires this option Verilink TAC 2010 User Manual 3 7 Configuration Menu Option Description Instructions P prm Performance Response Messages may optionally be sent in the 4K FDL portion of an ESF framed T1 1 NO Perf

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