Bell System 407 Series Manuals

Manuals and User Guides for Bell System 407 Series. We have 1 Bell System 407 Series manual available for free PDF download: Supplementary Information

Bell System 407 Series Supplementary Information

Bell System 407 Series Supplementary Information (31 pages)

MULTIPLE DATA STATION

Brand: Bell System | Category: Telephone Accessories | Size: 7 MB

Table of Contents

Table of Contents
1
General
2
Physical Information
4
407-Type Multiple Data Station
4
Power and Grounding Requirements
4
Customer Interface Connector and Cable
6
Data Sets 407 a and 407B
6
Interface Signal Characteristics
6
Theory of Operation
16
Tone and Voice Answer-Back
16
Hybrid and Voice Receive Circuits
16
Customer Interface Circuits
16
Automatic Call Distributor Circuits
20
Status Lamp Indication Circuits
20
AGC Amplifier
21
Group Separation Filters
21
Group Limiters and Divide-By-Three Circuits
21
Clocks and Synchronization
21
Time-Domain Detectors
21
Logic, Timing, and Inhibit Circuits
21
Output Drivers and Lockup Circuits
21
Dat a Set 407B
24
Special Code Detectors
24
Computer down Circuits
24
41-Type Data Mounting
27
Test Unit of 41A1 Data Mounting
27
101A Power Unit
28
Maintenance and Test Information
30

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