Specifications subject to change without notice. ADTRAN and ISU are trademarks of
ADTRAN, Inc., 5ESS is a registered trademark of Lucent, DMS-100 is a trademark of
Northern Telecom, Windows is a registered trademark of Microsoft Corporation. All other
registered trademarks and trademarks mentioned in this publication are the property of
their respective owners.
Product Specifications
Network Interface
■ RJ-45 for ISDN Basic Rate
U-Interface or S/T-Interface
DTE Interface
■ Two DB-25:each RS-530A/EIA-232 interfaces
■ V.35 interfaces available with RS-530A/
EIA-232-to-V.35 adapters
Dialing Selections
■ Dial Interfaces: two RS-366 interfaces
■ In-band DTE dialing: V.25 bis or AT commands
■ Manual or automatic stored number dialing
■ DTR assertion
Switch Compatibility
■ Lucent 5ESS, NTI DMS-100, NEC
■ National ISDN-1
Diagnostics and Testing
■ Local and remote loopbacks
■ CCITT V.54 Loopback
■ Remote configuration
Data Rates (DTE)
■ Using single DTE interface:
1200 bps to 115.2 kbps asynchronous
2400 bps to 128 kbps synchronous
■ Dual DTE Interfaces
1200 bps to 57.6 kbps asynchronous
2400 bps to 64 kbps synchronous
Data Rates (Network)
■ 64 kbps (1 B channel)
■ 128 kbps (2 B channels)
Protocols
■ CCITT V.120, T-LINK, SAP, Clear Channel,
DSU 57.6 Async, BONDING Mode 1, Fallback,
Async to Sync PPP, RFC1717 Multilink PPP
ISU 2x64Dual Port ISDN Service Unit
ADTRAN, Inc.
Attn: Enterprise Networks
901 Explorer Boulevard
Huntsville, AL 35806
P.O. Box 140000
Huntsville, AL 35814-4000
256 963-8000 voice
256 963-8699 fax
256 963-8200 fax back
General Information
800 9ADTRAN
info@adtran.com
www.adtran.com
Pre-Sales
Technical Support
800 615-1176 toll-free
application.engineer@adtran.com
www.adtran.com/support
Where to Buy
877 280-8416 toll-free
channel.sales@adtran.com
www.adtran.com/where2buy
Post-Sales
Technical Support
888 423-8726
support@adtran.com
www.adtran.com/support
ACES Installation &
Maintenance Service
888 874-ACES
aces@adtran.com
www.adtran.com/support
International Inquiries
256 963 8000 voice
256 963-6300 fax
international@adtran.com
www.adtran.com/international
For the regional office
nearest you, visit:
www.adtran.com/where2buy
Interoperability
■ BONDING compatible inverse multiplexers
■ Switched 56 DSUs, ISUs, ISDN TAs, and PPP-
compatible routers
Environmental
■ Operating Temperature:0° to 50°C, 32° to 122°F
■Storage Temperature:-20° to 70°C, -4° to 158°F
■ Relative Humidity: Up to 90%, non-condensing
Physical
■ Dimensions
Standalone: 2.25" H, 7.5" W, 10" D
■ Weight
Standalone:3.6 lbs
■ Power
115 vAC, 60 Hz,
8 watts max dissipation
Product Includes
■ ISU 2x64
■ 7 foot telephone cable (RI45 to RI11)
■ User Manual
Ordering Information
Equipment Part #
ISU 2x64 U-Interface, 115 vAC 1200051L1
S/T-Interface, 115 vAC 1200051L2
RS-530 to V.35 adapter cable 1200072L1
Printed in the U.S.A.
61200051L1-8F April 2002
©2002 ADTRAN, Inc. All rights reserved.
ADTRAN is a
TL 9000 registered company.
ADTRAN is a
ISO 9001 registered company.