ADTRAN HTU Nx64 User manual

Product Features
■Single V.35 or V.11 DTE
interface
■Nx56 or Nx64 operation
for data rates to 1.536
Mbps
■T1 HDSL line interface
■Easy to use front panel
keypad for unit configura-
tion and monitoring
■Local and remote loop-
back capability
■Extensive built-in
performance monitoring
capabilities
■Built in 511 bit error test
function
■Password protection
■V.54 loopback for end-to-
end testing
■Industry leading five-year
warranty
HTU Nx64
T1 HDSL Network Termination Unit
The ADTRAN HTU Nx64 is an easy to use T1
HDSL network termination unit. The HTU
Nx64 provides a digital interface between T1
HDSL and the user’s Data Terminal Equip-
ment (DTE). The HTU Nx64 is an ideal
solution for such applications as LAN to LAN
bridging, Frame Relay circuit termination,
and video-conferencing. The HTU Nx64 can
be deployed as either a remote unit in opera-
tion with an ADTRAN T1 HDSL central office
unit (HTU-C) or in a point-to-point configu-
ration with another HTU Nx64 in limited
distance campus configuration.
Housed in a compact, durable plastic
housing the HTU Nx64 supports data rates
from 56 kbps to 1.536 Mbps at Nx56 or Nx64
kbps. The HTU Nx64 provides both a V.35
and a V.11 interface for connection to the
end user’s DTE equipment.
Configuration, testing, and performance
monitoring is accomphlished via a user
friendly front panel interface. Complete
configuration and performance information
is available from the front panel keypad and
a two-line by 16-character LCD display. The
front panel interface can also be used to
invoke local and remote loopbacks with or
without 511 bit error rate testing. The HTU
Nx64 also supports configuration and
performance monitoring through a rear
panel control port using a VT100 terminal
emulation.
Network Connection (Configuration 1)
Campus Connection (Configuration 2)

Specifications subject to change without notice. All registered trademarks and trade-
marks mentioned in this publication are the property of their respective owners.
Product Specifications
Network Interface
Line Rate
■ T1 HDSL per Bellcore TA-NWT-001210
LINE Interface
HDSL
■ RJ45
Framing
■ SF/ESF
ESF Format
■ AT&T 54016
■ ANSI T1.403
Line Code
■ 2B1Q
DSO Assignment
■ Contiguous
■ Alternating
HDSL Timing
■ Network
■ Internal
■ DTE
DTE Interface
■ Bit Rate: 56 kbps to 1.536 Mbps,
Nx56 or Nx64 kbps (N=1 to 24)
■ CCITT V.35 (M34F Connector)
■ CCITT V.11 (DB15F Connector)
DTE Transmit Clock
■ Automatic
■ Internal
■ External
Performance Monitor Performance Data
■ BPVs, ES, SES, UAS, Alarms, Errors at DSX-1 (HTU-C)
Tests
■ Local Loopback
■ Remote Loopback
■ V.54 Loopback
■ Built in 511 bit error rate testor
HTU Nx64
T1 HDSL Network Termination Unit
Agency Approvals
■ FCC part 15, Class A
■ UL 1950 3rd edition
Environment
Operating
■ 0 to 50°C (32 to 122°F)
Storage
■ –20 to 70°C (–4 to 158°F)
Relative Humidity
■ Up to 95%, non-condensing
Physical
Dimensions
■ 1.5" H, 9.0" W, 6.25" D
Weight
■ 2 lbs
Power
■ 90-240 V, 50-60 Hz, 5 W
Protection
■ Front panel password protection
Ordering Information
Equipment Part #
HTU Nx64 1245023L1
Printed in the U.S.A.
I61245023L1-8B June 2002
©2002 ADTRAN, Inc. All rights reserved.
ADTRAN, Inc.
Attention:
International Department
901 Explorer Boulevard
Huntsville, Alabama 35806
USA
www.adtran.com
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ADTRAN is a
TL 9000 registered company.
ADTRAN is a
ISO 9001 registered company.