ADTRAN T400 Shelf Brochure

T400 Shelf

Product Features

■ Accommodates up to 12

Type 400 NT1, U-RPM, or
TRI-C circuit packs

■ Available in a 19" and

23" rackmount

■ Supports internal or

external power supplies

■ Accommodates

various powering
and battery systems

■ Facilitates battery

backup of NT1s and
terminal equipment

■ Built-in fuses protect

internal power supplies

■ Provides separate frame

ground to each circuit

■ Wallmount rack

swings out for easy
access to connectors

■ Industry-leading five-year

North American warranty

The ADTRAN®T400 shelf provides a space­saving housing for multiple Type 400 circuit
packs.The T400 shelf can support customer

premises NT1 applications, central office
U-Repeater Powering Module (U-RPM) appli­cations or Total Reach ISDN Central Office
Units (TRI-C). The shelf is effective for large
ISDN installations that prefer housing equip­ment in a centralized location instead of on a
desktop. This provides efficient management
and maintenance of ISDN circuits.

The T400 shelf houses up to 12 NT1s,
U-RPMs or TRI-Cs and is available in two
sizes. The T400-23 is a 23-inch shelf, and the
T400-19 is a 19-inch shelf. The T400 shelf can
be powered internally or externally depending
on the application.

If U-RPMs are used in a central office,
then the shelf is powered externally by a

-48 VDC bulk power source. Additionally,
for customer premises applications, the
shelf has provisions for using internal or
external power supplies to power the NT1s
and the terminal equipment.

When using internal power, one Type 400
power supply powers the shelf. A second
power supply can be used as a redundant
supply and will engage as a backup if the first
unit fails. Two fuses protect the T400 power
supplies from short circuiting. An external
alarm can be connected to the shelves as an
alert that a T400 power supply is down.

An external power supply (110 VAC to

-48 VDC) or any -48 VDC bulk power source
can be used instead of the internal T400
power supply to power the NT1s and
terminal

equipment.

The T400 shelf connects to the network
and customer equipment by three 50-pin
micro-ribbon connectors. A five position
terminal block is used to make connections
to the external power supply and the alarm.

Customer Premises

ISDN

TRI-C SC-PAM TRI-R

30.5 kft MGW*

ISDN Switch

ISDN Phone

Wiring Closet

U-Interface
2-wire

S/T Interface
4-wire

T400 Shelf

12 NT1s

POTS

Central Office

Total Reach ISDN

ISDN

Terminal

Adapter

ISDN Terminal

Adapter

ISDN Terminal

Adapter

U 2-Wire

U 2-Wire

ISDN Equipment Shelf

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
[e-mail]
www.adtran.com

Pre-Sales

Technical Support

800 615-1176 toll-free

[e-mail]

www.adtran.com/support

Where to Buy

877 280-8416 toll-free

[e-mail]

www.adtran.com/where2buy

Post-Sales

Technical Support

888 423-8726

[e-mail]

www.adtran.com/support

ACES Installation &

Maintenance Service

888 874-ACES

[e-mail]

www.adtran.com/support

International Inquiries

256 963 8000 voice

256 963-6300 fax

[e-mail]

www.adtran.com/international

For the regional office

nearest you, visit:

www.adtran.com/where2buy

Product Specifications

Circuit Capacity

T400-19

■

Up to 12 NT1, U-RPM T400 or TRI-C
circuit packs when using external power

■

Up to 10 NT1 T400 circuit packs when
using internal power

T400-23

■

Up to 12 NT1, U-RPM T400 or TRI-C circuit
packs when using external power

■

Up to 12 NT1 T400 circuit packs when
using internal power

Connectors

Telco Network

■

One 50-pin micro-ribbon connector

Customer Equipment

■

Two 50-pin micro-ribbon connectors

External Power Supply and Alarm

■

Five position terminal block

Fusing

■

Internal Power: Two 3 GMT type fuses

■

External Power: Requires external fuse

T400 Shelf

ISDN Equipment Shelf

Physical

Mount Configuration

■

T400-19: 19-inch rackmount

■

T400-23: 23-inch rackmount

Dimensions

■

T400-19 Rack: 19" W, 6" H, 7.5" D

■

T400-23 Rack: 22.75" W, 6" H, 7.5" D

Weight

■

T400-19 Rack: 4.8 lbs

■

T400-23 Rack: 5.5 lbs

Power

■

Internal: One or two 3 A, 110 vAC to

-48 vDC, T400 supplies

■

External: –48 vDC

Ordering Information

Equipment Part #

T400-19 Shelf 1150028L1
T400-23 Shelf, rackmount 1150024L1
NT1 Type 400 Circuit Pack 1212010
Type 400 Power Supply, 3 A 1353POWER04
Ratelco 110 vAC to -48 vDC, 6 A 3353POWER01

* Mixed-Gauge Wire (MGW), with noise: 13kft of 26-gauge wire,

8kft of 24-gauge wire, 9.5 kft of 22-gauge wire

Specifications subject to change without notice. ADTRAN is a registered
trademark of ADTRAN, Inc. All registered trademarks and trademarks
mentioned in this publication are the property of their respective owners.

61150024L1-8F March 2003

Copyright©2004 ADTRAN, Inc.

All rights reserved.

ADTRAN is an

ISO 9001: 2000 certified supplier.

ADTRAN is a

TL 9000 3.0 registered company.