61245023L1-5B
Section 61245023L1-5B, Issue 2
1
1. GENERAL
Functional Overview
The ADTRAN T1 Nx64 HTU-R is a network
terminating unit which uses High-bit-rate Digital
Subscriber Line (HDSL) technology to transport T1
data over copper loops. Each loop operates over a
single pair of copper wire and carries half of the
total bandwidth along with a small amount of
overhead for maintenance and performance
monitoring functions.
Figure 1
is an illustration of
the T1 Nx64 HTU-R.
The T1 Nx64 HTU-R is a standalone unit which
contains an integrated Data Service Unit (DSU).
This eliminates the need for a separate DSU. The
T1 Nx64 HTU-R provides Nx56 kbps or Nx64 kbps
data transmission capability. Possible data rates
range from 64 kbps to 1.536 Mbps and 56 kbps to
1.344 Mbps.
Section 61245023L1-5B
Issue 2, April 2000
CLEI Code # T1L3DEDA_ _
T1 Nx64 HTU-R
Installation and Maintenance
CONTENTS
1. GENERAL .................................................................. 1
2. INSTALLATION ....................................................... 5
3. OPERATION .............................................................. 8
4. PRODUCT SPECIFICATIONS .............................. 14
5. WARRANTY AND CUSTOMER SERVICE ......... 14
IMPORTANT
A. The Nx64 HTU-R can be used in a variety of environments. When using this equipment, follow these basic
safety precautions to reduce the risk of fire, electric shock and personal injury:
1. Do not use this product near water (for example, near a bathtub, washbowl, sink, or laundry tub, in
a wet basement or near a swimming pool).
2. Avoid using this or other telephone equipment (other than the cordless type) during an electrical
storm.
3. Do not use the telephone to report a gas leak in the vicinity of the leak.
4. Use only the power cord, power supply and/or batteries indicated in this document. Do not dispose
of batteries in a fire; check with local codes for possible special disposal instructions.
Figure 1. T1 Nx64 HTU-R
TABLES
Table 1. Front Panel LED Indicators ............................. 4
Table 2. Configuration Options for a Remote (Slave)
Unit ................................................................... 5
Table 3. T1 Nx64 HTU-R HDSL Interface Pin
Assignments ..................................................... 6
Table 4. V.35 Signal Designations ................................. 7
Table 5. Screen Abbreviations ....................................... 9
Table 6. Product Specifications .................................... 14
FIGURES
Figure 1.
T1 Nx64 HTU-R ............................................ 1
Figure 2.
System Configuration for T1 Nx64 HTU-R
Pair Deployment ............................................ 2
Figure 3.
System Configuration for T1 Nx64 HTU-R
Deployment with ADTRAN HTU-C ........... 2
Figure 4.
V.35 to RS-449 Adapter Cable Pinout .......... 3
Figure 5.
HTU-C Rear Panel ........................................ 3
Figure 6.
V.11 to RS-449 Adapter Cable Pinout .......... 8
Figure 7.
Introductory Menu Screen ........................... 10
Figure 8.
HDSL Main Menu Screen ........................... 10
Figure 9.
Current System Status Screen ..................... 11
Figure 10. Loopback Options Screen ........................... 12
Figure 11. Self-Test Options Screen ............................. 12
Figure 12. Provisioning Options Screen ....................... 13
Figure 13. Troubleshooting Screen ............................... 13
PWR
TEST
ALM
ERR
TD
CS
RS
RD
CANCEL
ENTER
T1 HTU-R
