Bell System 20A Manuals

Manuals and User Guides for Bell System 20A. We have 1 Bell System 20A manual available for free PDF download: Operation Manual

Bell System 20A Operation Manual

Bell System 20A Operation Manual (45 pages)

WADS TOLL TESTBOARD

Brand: Bell System | Category: Test Equipment | Size: 4 MB

Table of Contents

Table of Contents
1
Testing Facilities
4
Cord Circuit
5
Description of Circuits
7
Position and Telephone Circuit
8
Dial Cord Circuit (SD-64761-01)
9
MF Keyset Circuit (SD-55925-01)
9
Signaling Test Circuit (SD-56497-01)
9
Telephone Circuit (SD-68330-01)
11
And Key Circuits
12
Test Trunk Circuit (SD-27648-01)
14
Sleeve Repeater Circuit (SD-56536-01)
14
Incoming Test Line Circuit
15
Test Cord Circuit (SD-56528-01)
15
Measuring Circuit
20
Equipment
20
906A Data Distortion Test Equipment
20
Typical Arrangement
24
Field Arrangement
32
Trunk
40
Bay)
45

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