ADTRAN 25 manual Total 4 1

DTU (Continued)

Operation 4-14

DTU Troubles 4-81

E

Emergency Transfer 2-77,4-4

Install 2-77

Test 3-15

Unit Trouble 4-80

Equipment

Auxiliary B-7

Peripheral B-4

Test 4-2

Equipment Room 2-16

Station Cabling 2-60

Trunk Cabling 249

Error 4-32

Error Log 4-27

Access 4-30

Errors 4-4

ETU Trouble 4-80

Evaluate Cabinet Unit Power Load C-1

External Alert

Test (Night Service) 3-12

External Alerts

Install 2-120

F

Failure

Complete System 4-61

Maintenance 4-13

Failures

Total 4 - 1 1

Fan Assembly Trouble 4-71

Fanning

Strip 2 - 1 0

Fanning Strip

Install 2-44

FCC Precautions 1-2

Features

RIMS 4-6

Test 3-6

Frontplane Ribbon Connector Trouble 4-64

INDEX

G

General Maintenance Information 4-1

Glossary G-1

Ground Wire

Connections 2-33

Ground-Start Key

Install 2-82

Grounding 2-18

H

Hardware

Cross-Connect B-9

Housekeeping

SIP 2-76

I

Implementation Manual 5-2

Incoming DID Trunk

Test 3-2

Incoming Tie Trunk

Test 3-2

Initialize

System 2-33,2-43

I n s t a l l

617A Panels 244 Adapters 247 Attendant Console 2-83Cabinets 2-23Cabling 249, 2-60

Coupled Bonding Conductor 2-58Cross-Connect Equipment 2-43Dictation System Interface 2-121Digital Tape Unit 2-111

DS1 2-53

External Alerts 2-120

Ground-Start Key 2-82

Modular Bulk Power Supply 2-49Music-on-Hold Interface 2-117Off-Premises Stations 2-95Out-of-Building Voice Terminals 2-95Out-of-Building Wiring 2-96

Paging Interface 2-121

Recorded Delay Announcement 2-121SAT 2-102

I-3