61245001L6-5G
Section 61245001L6-5, Issue 7
1
Section 61245001L6-5G
Issue 7, April 2001
CLEI Code # T1L4F5UC _ _
220/E220 Low Voltage HTU-C M R
High-bit-rate Digital Subscriber Line
Transceiver Unit for the Central Office
Installation and Maintenance
1. GENERAL
The ADTRAN 220/E220 HDSL Transceiver
Unit for the Central Office (HTU-C M R),
P/N 1245001L6, is the Central Office (CO) unit
used to deploy an HDSL T1 circuit using 4-wire
metallic facilities. 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 R
works in conjunction with the ADTRAN HTU-R
and HREs to provide a DS1 service up to 36,000
feet on the local loop.
CONTENTS
1. GENERAL ........................................................................... 1
2. INSTALLATION ................................................................ 2
3. CONNECTIONS ................................................................. 5
4. HDSL SYSTEM TESTING ................................................ 6
5. CONTROL PORT OPERATION ....................................... 7
6. HDSL DEPLOYMENT GUIDELINES ............................ 16
7. TROUBLESHOOTING PROCEDURES ......................... 17
8. MAINTENANCE .............................................................. 17
9. PRODUCT SPECIFICATIONS ........................................ 18
10. WARRANTY AND CUSTOMER SERVICE .................. 18
Appendix A. HDSL Loopbacks ............................................ A-1
FIGURES
Figure 1.
ADTRAN HTU-C M R ....................................... 1
Figure 2.
HTU-C M R Switch Arrangement ...................... 4
Figure 3.
HTU-C M R Edge Connector Wiring ................. 5
Figure 4.
HTU-C M R Span Powering Diagram ................ 5
Figure 5.
HTU-C M R Bantam Jack Arrangement ............. 6
Figure 6.
HDSL Loopbacks ................................................ 6
Figure 7.
RS-232 (DB9) Pin Assignments ......................... 7
Figure 8.
Introductory Menu Screen ................................. 10
Figure 9.
HDSL Main Menu Screen ................................. 10
Figure 10.
Current System Status Screen ........................... 11
Figure 10A. Current System Status Screen - HRE ................ 11
Figure 11.
Performance History Screen .............................. 12
Figure 11A. Performance History Screen - HRE .................. 12
Figure 12.
Provisioning Screen ........................................... 13
Figure 13.
Loopback Options Screen ................................. 13
Figure 14.
Self-Test Options Screen ................................... 14
Figure 15.
Troubleshooting Display ................................... 14
Figure 16.
Set Time/Date/Circuit ID .................................. 15
Figure 17.
HDSL Deployment Guidelines ......................... 16
TABLES
Table 1.
Compliance Codes ................................................ 2
Table 2.
SW1 Rotary Switch Option Settings .................... 3
Table 3.
SW2 Option Settings ............................................. 3
Table 4.
SW3 Option Settings ............................................. 3
Table 5.
Front Panel Indicators ........................................... 4
Table 6.
Screen Abbreviations ............................................ 7
Table 7.
HDSL Loss Values .............................................. 16
Table 8.
Loop Insertion Loss Data .................................... 16
Table 9.
Power Consumption Worksheet ......................... 17
Table 10.
Troubleshooting Guide ....................................... 17
Table 11.
Product Specifications ........................................ 19
Table A-1. HDSL Loopback Control Codes ....................... A-2
Table A-2. Inband Addressable Loopback Codes .............. A-3
Figure 1. ADTRAN HTU-C M R
R
S
2
3
2
LP1
LP2
DSX
ALM
LBK
TX
RX
E
Q
DSX-1
LBO
LBK T
IMEOU
T DIS
B8ZS
T1
EN
AMI
FT1
HTU-C
1245001L6
533
399
EXT
0
266
133
CUST
OMER
LOSS
OF S
IGNAL
AIS
LBK
CDI
H
D
S
L
Trademarks: Any brand names and product names included in this document are
trademarks, registered trademarks, or trade names of their respective holders.
