ADTRAN HTU-C M Installation And Maintenance Manual Download Page 1

1

Section 61246001L2-5, Issue 2

61246001L2-5B

Section 61246001L2-5B

Issue 2, November 1999

CLEI Code #T1L3M4NA_ _

220/E220 HTU-C M

High-bit-rate Digital Subscriber Line

Transceiver Unit -- Central Office

Installation and Maintenance

Trademarks: Any brand names and product names included in this document are
trademarks, registered trademarks, or trade names of their respective holders.

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

Figure 1.  ADTRAN HTU-C M

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 10A.  Current System Status Screen - HRE ..................... 12
Figure 11.  Performance History Screen ..................................... 13
Figure 11A.  Performance History Screen - HRE ....................... 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

ON

TX

RX

TX

RX

LP1

LP2

DSX

ALM

LBK

B8ZS

FRM

ESF

NIU LB DIS

LBK TIM

EOUT DIS

AMI
UFRM
SF
EN
EN

H

D

S

L

M

O

N

E

Q

HTU-C

M

R

S

2

3

2

1246001

L2

133

EXT

0

399

266

533

Summary of Contents for HTU-C M

Page 1: ...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...

Page 2: ...C to DC converter to derive its internal logic and span powering voltages from the 48 VDC office supply The 220 E220 HTU C M can span power HREs and HTU Rs as listed above When used with Low Voltage H...

Page 3: ...dicators The HTU C M has five faceplate LEDs which indicate operational status Table 4 defines these LEDs Powering Options Using SW2 see Figure 2 the HTU C M can be optioned for two different span pow...

Page 4: ...u o e m i T k c a b p o o L 2 6 W S k c a b p o o L U I N d e l b a n E d e l b a s i D 1 T l a n o i t i d a r t o t d n o p s e r o t t i n u L S D H N A R T D A e h t s m a r g o r p h c t i w s s...

Page 5: ...g n i m r a k c a b p o o l e h T k c a b p o o l n i t o n t u b k c a b p o o l r o f y d a e r d e m r a s i t i n u e v i t c a s i k c a b p o o l C U T H l a c o L The HTU C M can be optioned vi...

Page 6: ...processes First loopback may be activated using the craft interface The Loopback Options Screen which provides for the HTU C M HTU R and HRE loopbacks will be described in subsection 5 Secondly the H...

Page 7: ...troller all remote terminal operation must be made through the control port of the shelfcontroller nottheHTU C M Terminal operation via the HFAC control port will vary slightly from that described in...

Page 8: ...n i d n o c e S 1 S D X S D U I N t i n U e c a f r e t n I k r o w t e N 1 T N S r e b m u n l a i r e S M 5 1 d o i r e p e t u n i m n e e t f i F H 4 2 d o i r e p r u o h r u o f y t n e w T Tabl...

Page 9: ...measured at 200 kHz The LOSS measurement is a better indication of the loop s attenuation of the 2B1Q signal than the insertion loss measured at a single frequency ADTRAN HDSL can operate on cables wi...

Page 10: ...d information on the alarm history of the HDSL and T1 spans Information provided includes alarm location type first and last time date current status and count The Set Time Date Circuit ID menu screen...

Page 11: ...901 Explorer Boulevard Huntsville Alabama 35806 2807 For Information or Technical Support Support Hours Normal 7am 7pm CST Emergency 7 days x 24 hours Phone 800 726 8663 888 873 HDSL Fax 256 963 6217...

Page 12: ...__ ____ ____ X 2 X X 1 X LP2 LP2 X 1 X X 0 X X 0 X Press Z to zero registers X to restart MIN MAX M for Main Menu P for previous view H for HDSL Range Extender 2 HRE view CIRCUIT ID 01 01 99 00 02 45...

Page 13: ...5 20 30 16 30 Press view number to select view 20 15 16 15 Press H to view HRE 2 history Press P for previous view Press B to go back 8 hours Press M to return to the Main Menu CIRCUIT ID 01 01 99 00...

Page 14: ...IVE 2 LOOPBACK TO CUSTOMER AT HTU C INACTIVE 3 LOOPBACK TO NETWORK AT HTU R INACTIVE 4 LOOPBACK TO CUSTOMER AT HTU R INACTIVE 5 LOOPBACK TO NETWORK AT HRE 1 INACTIVE 6 LOOPBACK TO CUSTOMER AT HRE 1 UN...

Page 15: ...______ ______________________ PROVISIONS CURRENT SETTINGS HARDWARE SETTINGS 1 DSX 1 LINE BUILDOUT 0 133 FEET 0 133 FEET 2 DSX 1 DS1 LINE CODE B8ZS B8ZS 3 DSX 1 DS1 FRAMING ESF ESF 4 NIU LOOPBACK ENABL...

Page 16: ...BLUE AIS OK 000 HTU R RED LOS OK 000 DS1 YELLOW OK 000 BLUE AIS OK 000 HDSL Span History SPAN 1 LP1 HLOS OK 000 LP2 HLOS OK 000 HTU C LP1 MRGN OK 000 LP2 MRGN OK 000 HRE 1 LP1 MRGN OK 000 LP2 MRGN OK...

Page 17: ...k 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 After defaulting the options you...

Page 18: ...aximum local loop loss information for PIC cable at 70 F 135 resistive termination is provided in Table 7 0 12 11 10 9 8 7 6 5 4 3 2 1 0 1 2 3 4 WORKING LENGTH OF 26 GAUGE CABLE KFT WORKING LENGTH OF...

Page 19: ...em ADTRAN does not recommend that repairs be performed in the field Repair services may be obtained by returning the defective unit to the ADTRAN Customer Service RMA Department 9 PRODUCT SPECIFICATIO...

Page 20: ...t d n a 1 L 1 4 0 5 4 2 1 N P E R H e g a t l o V w o L N A R T D A e h t h t i w d e t s e T 6 L 6 2 0 6 4 2 1 r e w o P l a t o T n o i t a p i s s i D r e w o P C U T H r e w o P n a p S g n i s u...

Page 21: ...n Appendix A HDSL Loopbacks addition to a separate Smartjack loopback Separate activation sequences are provided for the HTU R and the Smartjack loopback initiation HRE Loopback A regenerative loopbac...

Page 22: ...if an error rate of 1E 03 or better is present States and State Transitions A summary of timeout and control sequences is given in Table A 1 In all control code sequences presented the in band codes...

Page 23: ...0010 HRE Activation Sequence 1100 0111 0100 0001 The designated HDSL element will loop up after receiving the proper activation sequence If the NIU loopback feature for the HDSL circuit is enabled se...

Page 24: ...need to exceed 18 seconds to allow detection and loop down of up to three HDSL elements The deactivation sequence does not disarm the HDSL elements They can still respond to activation sequence contro...

Page 25: ...e code the ADTRAN HDSL system will block this information from reaching the remote end of the circuit This forces information in those DS0 channels to be an all 1s idle code The result of this blockin...

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