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CONTENTS
1. GENERAL ..................................................................... 1
2. INSTALLATION ........................................................... 2
3. APPLICATIONS ........................................................... 6
4. SPECIFICATIONS ........................................................ 7
5. MAINTENANCE .......................................................... 7
FIGURES
Figure 1. 23-inch T400 Shelf .............................................. 1
Figure 2. 23-inch T400 Backplane ..................................... 2
Figure 4. TS1 Alarm Connections ...................................... 3
Figure 5. Telco Connectors ................................................. 5
TABLES
Table 3. 23-inch T400 Shelf Applications .......................... 6

1. GENERAL

This practice provides installation and maintenance
procedures for the ADTRAN 23-inch T400 Shelf,
illustrated in Figure 1.
Revision History
Issue 5 clarifies shelf backplane fuse requirements and
updates text format.
Features
The T400 shelf, P/N 1150092L1, supports the
following features and functions:
61150092L1-5E
ADTRAN 23-Inch T400 Shelf
Installation and Maintenance
Figure 1. 23-inch T400 Shelf
Trademarks: Any brand names and product names included in this document are
Section 61150092L1-5, Issue 5
trademarks, registered trademarks, or trade names of their respective holders.
CLEI Code NDMMBJ01 _ _
Accommodates up to 14 industry standard
T400/T200 circuit packs.
Meets applicable sections of GR-1089-CORE
and GR-63-CORE for NEBS Level 3
Compliance.
Provides four 25-pair amphenol connectors.
Locking front cover.
Various mounting positions for standard rack
configurations.
Loss of power alarm relay.
Front panel electrostatic discharge (ESD)
grounding jack.
General Description
The T400 Shelf is designed to deploy T200/T400
circuit packs. The shelf supports 2-wire, 4-wire, or
two to 4-wire circuit pack form factors for both central
offices and customer premises.
Equipped with mounting flanges, the T400 shelf
installs in a standard 23-inch central office
communications bay. The shelf measures 21 inches
wide, 11 inches deep, and 7 inches high, occupying
four vertical rack units. Two sets of holes on the
mounting flanges allow for positioning the shelf in
either of two standard bay mounting configurations.
The shelf backplane printed circuit board (PCB)
accommodates card edge connectors plus the
interconnects for signals, power, ground, and loss of
power alarm (Figure 2). The backplane of the T400
Shelf contains the following:
Fourteen 56-pin card edge connectors, one for
each individual circuit pack.
Section 61150092L1-5E
Issue 5, June 2001
1

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Table of Contents
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Summary of Contents for ADTRAN T400

  • Page 1: Table Of Contents

    Features interconnects for signals, power, ground, and loss of The T400 shelf, P/N 1150092L1, supports the power alarm (Figure 2). The backplane of the T400 following features and functions: Shelf contains the following: •...
  • Page 2: Installation

    NOTE Mounting Although rated at 15 A, the shelf PCB can be The T400 Shelf is designed to mount directly into a fused at 5 A if all shelf units are ADTRAN. standard 23-inch wide flange type communications bay. The T400 Shelf is factory configured to mount 4...
  • Page 3: Figure 3. Ts1 Power & Ground Connections

    CAUTION To meet accessibility requirements of GR-1089-CORE Electrical Safety Criteria, the rear cover must be installed when span powering voltages meeting Class A2, A3, AB, B, or C are 20 AWG 16 AWG present. The front access cover must be installed SOLID STRANDED when circuit pack design does not prevent...
  • Page 4: Table 2. Interface Wiring For P1 Through P4

    ESD during plug-in unit installation. details the pinout of each connector. Loss-of-Power Alarm The T400 Shelf provides an alarm contact which is open during normal conditions. During a loss of power the alarm contact will close. The dry contact Table 2.
  • Page 5: Figure 5. Telco Connectors

    Figure 5. Telco Connectors 61150092L1-5E Section 61150092L1-5, Issue 5...
  • Page 6: Applications

    3. APPLICATIONS Table 3 outlines the various applications intended for use with the T400 Shelf. Table 3. 23-inch T400 Shelf Applications l a t i f f l a t i f f l a t l a t i t a...
  • Page 7: Specifications

    4. SPECIFICATIONS 6. WARRANTY AND CUSTOMER SERVICE The specifications for the T400 Shelf are listed in ADTRAN will replace or repair this product within ten Table 4. (10) years from the date of shipment if it does not meet its published specifications or fails while in service.
  • Page 8 Section 61150092L1-5, Issue 5 61150092L1-5E...

Table of Contents