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Specifications subject to change without notice. ISU is a trademark of ADTRAN, Inc. 5ESS is a
registered trademark of  Lucent, DMS-100 is a trademark of Northern Telecom, HP Openview is a
registered trademark of Hewlett Packard Company, Netview is a registered trademark of IBM
Corporation, SunNet Manager is a registered trademark of Sun Microsystems, Inc., all other
marks or trademarks are property of their respective owners.

Product Specifications

Network Interface

■ 

Four RJ-45s for ISDN 2B1Q Basic Rate U-Interface

■ 

Up to four BRIs 

(Maximum of eight 56/64 kbps B channels)

DTE Interface

■ 

V.35

■ 

56 kbps to 512 kbps synchronous data rates

Dialing Selections

■ 

Manual from front panel 

■ 

In-Band DTE Dialing: V.25 bis

■ 

DTR assertion

■ 

From VT100 terminal interface

■ 

RS-366

Protocols

■ 

Multilink PPP

■ 

Clear Channel

■ 

BONDING Mode 1

Switch Compatibility

■ 

National ISDN-1, Lucent 5ESS, NTI DMS-100, NEC

Diagnostic and Testing

■ 

Local and remote loopbacks, V.54 loopback, 

2047 pattern (remote testing for BONDING mode only) 

■ 

Remote configuration 

ISU 512e

512 kbps ISDN Inverse Multiplexer with SNMP

Display

■ 

Two-line x 16-character LCD

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 95%, non-condensing

Physical

■ 

Dimensions:

2.5" H, 7.875" W, 10.5" D

■ 

Weight:

3 lbs

■ 

Power:

115 vAC, 60 Hz, 8 watts maximum dissipation

Product Includes

■ 

Four 7 foot RJ-45 telephone cables

■ 

User Manual

Ordering Information

Equipment

Part #

ISDN Ordering Codes are available to aid in ordering
ISDN lines for this product.

ISU 512e

1203086L1

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

Printed in the U.S.A.

61203086L1-8A May 2002

©2002 ADTRAN, Inc. All rights reserved.

ADTRAN is a 

TL 9000 registered company.

ADTRAN is a 

ISO 9001 registered company.

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