ADTRAN HTU-C M Installation And Maintenance Manual
ADTRAN HTU-C M Installation And Maintenance Manual

ADTRAN HTU-C M Installation And Maintenance Manual

High-bit-rate digital subscriber line transceiver unit
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Contents
1. GENERAL ............................................................................... 1
2. INSTALLATION ...................................................................... 2
3. CONNECTIONS ...................................................................... 3
4. HDSL SYSTEM TESTING ..................................................... 5
5. CONTROL PORT OPERATION ............................................. 7
6. HDSL DEPLOYMENT GUIDELINES ................................. 18
7. TROUBLESHOOTING PROCEDURES .............................. 19
8. MAINTENANCE ................................................................... 19
9. PRODUCT SPECIFICATIONS ............................................. 19
10. WARRANTY AND CUSTOMER SERVICE ...................... 19
Appendix A. HDSL Loopbacks ................................................ A-1
Appendix B. DS0 Blocking ...................................................... B-1
Figures
Figure 1. ADTRAN HTU-C M .................................................... 1
Figure 2. HTU-C M Switch Arrangement .................................... 3
Figure 3. HTU-C M Edge Connector Wiring .............................. 6
Figure 4. HTU-C M Span Powering Diagram ............................ 6
Figure 5. HTU-C M Bantam Jack Arrangement ........................... 6
Figure 6. HDSL Loopbacks .......................................................... 7
Figure 7. RS-232 (DB9) Pin Assignments ................................... 7
Figure 8. Introductory Menu Screen .......................................... 11
Figure 9. HDSL Main Menu Screen ........................................... 11
Figure 10. Current System Status Screen ................................... 12
Figure 11. Performance History Screen ..................................... 13
Figure 12. Loopback Options Screen ......................................... 14
Figure 13. Self Test Options Screen ........................................... 14
Figure 14. Provisioning Screen .................................................. 15
Figure 15. Troubleshooting Display ........................................... 15
Figure 16. Alarm History Screen ................................................ 16
Figure 17. Set Time/Date/Circuit ID Screen .............................. 16
Figure 18. Default Options Screen ............................................. 17
Figure 19. HDSL Deployment Guidelines .................................. 18
Figure A-1. HDSL Loopback Points ........................................ A-1
Figure A-2. HDSL Element State Diagram .............................. A-1
Tables
Table 1. UL/CUL Telecommunications Codes ............................. 2
Table 2. Front Panel Rotary Switch Option Setting1 ................... 4
Table 3. SW6 Option Settings1 .................................................... 4
Table 4. Front Panel Indicators ..................................................... 5
Table 5. Screen Abbreviations ...................................................... 8
Table 6. HDSL Loss Values ........................................................ 18
Table 7. Loop Insertion Loss Data ............................................. 18
Table 8. Troubleshooting Guide ................................................. 19
Table 9. HDSL 220/E220 HTU-C M Specifications ................... 20
Table A-1. HDSL Loopback Control Codes ............................. A-2
61246001L2-5B
Trademarks: Any brand names and product names included in this document are
trademarks, registered trademarks, or trade names of their respective holders.
220/E220 HTU-C M
High-bit-rate Digital Subscriber Line
Transceiver Unit -- Central Office
Installation and Maintenance
Section 61246001L2-5, Issue 2
CLEI Code #T1L3M4NA_ _

Figure 1. ADTRAN HTU-C M

1. GENERAL

The ADTRAN 220/E220 HDSL Transceiver Unit for
the Central Office (HTU-C M), part number
1246001L2, is the Central Office (CO) unit used to
deploy an HDSL T1 circuit using 4-wire metallic
facilities, and span power multiple HDSL elements.
The unit occupies one slot in a standard 220 Office
Repeater Bay or the ADTRAN E220 Shelf.
DSX-1 signals are provided to and received from the
network while 2B1Q HDSL signals are provided to
the local loop. The ADTRAN HTU-C M works in
conjunction with the ADTRAN HTU-R and HRE to
provide a DS1 service up to 36,000 feet on the local
loop.
This HTU-C M works with multiple list versions of
the HDSL unit remote end (HTU-R) and HDSL range
extender (HRE) as listed below:
Part Number
Description
1242004L2
HTU-R T400 CP
1242035L2
HTU-R SA
1242031L2
HRE
1244021L1
Low Voltage HTU-R T400
CP
Section 61246001L2-5B
Issue 2, November 1999
C M
H T U -
2
12 46 00 1L
13 3
0
26 6
EX T
39 9
53 3
AM I
B8 ZS
UF RM
FR M
SF
ES F
EN
NI U LB DIS
EN
EO UT DIS
LB K TIM
H
LP 1
D
TX
S
M
LP 2
O
L
N
RX
DS X
AL M
LB K
TX
E
Q
RX
R
S
2
3
2
1

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Summary of Contents for ADTRAN HTU-C M

  • Page 1: Table Of Contents

    Figure 1. ADTRAN HTU-C M ............ 1 Figure 2. HTU-C M Switch Arrangement ........3 Figure 3. HTU-C M Edge Connector Wiring ......6 Figure 4. HTU-C M Span Powering Diagram ......6 Figure 5. HTU-C M Bantam Jack Arrangement ......6 Figure 1.
  • Page 2: Installation

    50-pin shelf connectors related to each individual slot. 2. Input current at maximum load is 0.7 A The HTU-C M contains an onboard fuse. If the fuse Table 1. UL/CUL Telecommunications Codes opens, it supplies a -48 VDC voltage to the fuse alarm bus and all front panel indicators will be off.
  • Page 3: Connections

    Powering Options operation. In addition, a single position dipswitch Using SW2 (see Figure 2), the HTU-C M can be pack (SW2), is mounted on the board to adjust span optioned for two different span powering modes. By powering voltage.
  • Page 4 Table 2. Front Panel Rotary Switch Option Setting (Default setting are in bold) o i t o i t d l i i t a d l i z i l i r e h t i . t u d l i d l i a r t...
  • Page 5: Hdsl System Testing

    . e t The HTU-C M can be optioned via SW2 to adjust the 4. HDSL SYSTEM TESTING span powering voltage at either less than -140 VDC or The ADTRAN HDSL system provides the ability to -190 VDC.
  • Page 6: Figure 3. Htu-C M Edge Connector Wiring

    SPAN CURRENT HDSL The loopback condition imposed in both cases is a T1 (34) logic level loopback at the point within the HTU-C M LOOP 2 where the DSX-1 signal passes into the HDSL R1 (35) modulators. Figure 6 depicts all of the loopback locations possible with ADTRAN HDSL equipment.
  • Page 7: Control Port Operation

    Figure 6. HDSL Loopbacks must be made through the control port of the shelf controller, not the HTU-C M. Terminal In addition to network-side loopbacks, the HTU-C M operation via the HFAC control port will provides customer-side loopbacks initiated by using vary slightly from that described in the the terminal control port.
  • Page 8 Figure 9, HDSL Main Menu Screen. both the HTU-C M and HTU-R. Type “H” once to view the Current System Status screen for HRE #1; From the Main Menu, the following screens can be type “H”...
  • Page 9 2B1Q signal than the insertion loss measured at a single frequency. ADTRAN HDSL can operate on cables with an excess of 30 dB LOSS. The first number is for the current 15-minute period and the second is the current 24-hour period (Loop 1 and Loop 2 numbers are displayed).
  • Page 10 reviews red, yellow, and blue alarm conditions in the circuit to automatically predict where a fault is located. Once a fault location is suspected, the corresponding portion of the circuit on the screen is highlighted and a message describing the failure will appear.
  • Page 11: Figure 8. Introductory Menu Screen

    AT HTU-C AT HTU-R Press “M” to view Main Menu. Figure 8. Introductory Menu Screen CIRCUIT ID: 01/01/99 00:02:08 ADTRAN HDSL MAIN MENU 1) CURRENT SYSTEM STATUS 2) PERFORMANCE HISTORY 3) ADTRAN INFORMATION 4) LOOPBACK OPTIONS 5) SELF-TEST 6) PROVISIONING...
  • Page 12: Figure 10. Current System Status Screen

    CIRCUIT ID: 01/01/99 00:02:45 LOOP #1 <NETWORK> LOOP #2 CURRENT SYSTEM STATUS LOOP #1 <CUSTOMER>LOOP #2 --------- HTU-C --------- --------- HTU-R --------- 29(29) dB 29(29) dB <- LOSS CUR(MAX) -> 29(29) dB 30(30) dB <- SYNC -> 000/00000 000/00000 <- 15M/24H ->...
  • Page 13: Figure 11. Performance History Screen

    CIRCUIT ID: 01/01/99 00:04:19 24 HOUR REGISTERS PERFORMANCE HISTORY 15 MINUTE REGISTERS ---ES-SES-UAS--- —ES-SES-UAS————ES-SES-UAS- 00000 00000 00000 <-- CURRENT --> 000 000 000 12/31 ----- ----- ----- <-- --> 00:00 --- --- --- 20:00 --- --- --- 12/30 ----- ----- ----- 23:45 --- --- --- 19:45 --- --- --- 12/29 ----- ----- -----...
  • Page 14: Figure 12. Loopback Options Screen

    CIRCUIT ID: 01/01/99 00:05:23 LOOPBACK OPTIONS _____ _____ _____ _____ |HTU-C| |HRE 1| |HRE 2| |HTU-R| --->|-----|<=====>|-----|<=====>|-----|<=====>|-----|<-- NET | | CUST <---|-----|<=====>|-----|<=====>|-----|<=====>|-----|--> |_____| |_____| |_____| |_____| 1) LOOPBACK TO NETWORK AT HTU-C = INACTIVE 2) LOOPBACK TO CUSTOMER AT HTU-C = INACTIVE 3) LOOPBACK TO NETWORK AT HTU-R = INACTIVE 4) LOOPBACK TO CUSTOMER AT HTU-R = INACTIVE...
  • Page 15: Figure 14. Provisioning Screen

    CIRCUIT ID: 01/01/99 00:05:50 PROVISIONING ________________________________________________ ______________________ PROVISIONS CURRENT SETTINGS HARDWARE SETTINGS ——————————————————---------------------——— ————————--------- DSX-1 LINE BUILDOUT 0-133 FEET 0-133 FEET DSX-1/DS1 LINE CODE B8ZS B8ZS DSX-1/DS1 FRAMING NIU LOOPBACK ENABLED ENABLED LOOPBACK TIMEOUT 20 MIN 20 MIN DS1 TX LEVEL 0 dB DS0 BLOCKING 00000000 00000000 00000000...
  • Page 16: Figure 16. Alarm History Screen

    CIRCUIT ID: 01/01/99 00:07:21 T1 Alarm History LOCATION ALARM FIRST LAST CURRENT COUNT -------------------------------------------------------------------------------- HTU-C RED(LOS) (DSX-1) YELLOW BLUE(AIS) HTU-R RED(LOS) (DS1) YELLOW BLUE(AIS) HDSL Span History -------------------------------------------------------------------------------- SPAN 1 LP1 HLOS LP2 HLOS HTU-C LP1 MRGN LP2 MRGN HRE-1 LP1 MRGN LP2 MRGN Press: C to clear history : H to scroll span alarms : M for main menu...
  • Page 17: Figure 18. Default Options Screen

    CIRCUIT ID: 01/01/99 00:07:52 RESET PROVISIONING OPTIONS TO FACTORY DEFAULTS This screen will allow you to reset the provisioning of this HDSL circuit back to the factory defaults. If you do this, the options as shown on the provisioning screen will change to the values that were programmed into this unit from the factory.
  • Page 18: Hdsl Deployment Guidelines

    6. HDSL DEPLOYMENT GUIDELINES Loop loss per Kft for other wire is summarized in Table 6. The ADTRAN HDSL system is designed to provide DS1-based services over loops designed to comply Recommended maximum local loop loss information with carrier service area (CSA) guidelines. CSA for PIC cable at 70°F, 135Ω, resistive termination is...
  • Page 19: Troubleshooting Procedures

    7. TROUBLESHOOTING PROCEDURES 10. WARRANTY AND CUSTOMER SERVICE Table 8 is a troubleshooting guide for the 220/E220 ADTRAN will replace or repair this product within HTU-C M. ten years from the date of shipment if it does not meet its published specifications or fails while in service (see ADTRAN Equipment Warranty, Repair, and Table 8.
  • Page 20 Table 9. HDSL 220/E220 HTU-C M Specifications i t a l l u i l l s r i r i a r i a r e i n i l < , t e l a t < a i l...
  • Page 21: Appendix Ahdsl Loopbacks

    HTU-R and facility data link loopback codes. The operation of the Smartjack loopback initiation. the loopback commands in the ADTRAN HDSL HRE Loopback: A regenerative loopback of the system is compliant with the recommendation to HDSL signal toward the network.
  • Page 22 Loopback Process Description In-band control code sequences are transmitted over the DS1 link by either the unframed or overwrite In general, the loopback process for the HDSL system method. The HDSL elements respond to either elements is modeled on the corresponding DS1 method.
  • Page 23 The Disarmed State is the normal mode of operation. If the NIU loopback feature for the HDSL circuit is Each HDSL element is transparent to the data flow. enabled (see HTU-C Switch Options), the 5-bit in- However, the in-band data flow and the ESF data link band arming sequence (11000) or the 16-bit ESF data are monitored for the arming sequence.
  • Page 24 Transition from Loop-up to Armed State: Any HDSL element can be commanded to move from the loop-up state into the armed state by a single in-band 16-bit deactivate control code sequence. The same deactivation sequence as shown is used for all HDSL elements.
  • Page 25: Appendix Bds0 Blocking

    DS0 channels with information other than an with an idle code. This is a common capability on all 1s idle code, the ADTRAN HDSL system will Fractional T1 CSU/DSU, D4 channel banks, and other block this information from reaching the remote end CPE devices capable of connecting to Fractional T1 of the circuit.

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