IBM System/34 Maintenance Manual page 460

31-000
Data Communications (First or Second Communications Adapter)
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CONTENTS
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31-010 Introduction
31-100 Locations
31-110 EIA/CCITT
31-120 2400 BPS Integrated Modem
31-130 1200 BPS Integrated Modem
31-140 Digital Data Service Adapter
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31-150 External Cables
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31-200 Adapter Card
31-300 1200 BPS Integrated Modem
31-310 Card Switch Settings
31-320 Line Plate Adjustment
31-340 Transmit Level Limiting Check
31-400 2400 BPS Integrated Modem
31-410 Operator Panel
31-414
Test/ Operate Diagnostics
31-420 Transmit Level Limiting Check
31-430 Signal Quality Meter Adjustment
31-440 Dial Tone Detect
31-450 Interface Signal Timings
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31-460
Card Check
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'-..) 31-470 Card Jumpers
31-480 Waveshapes
31-500 Digital Data Service Adapter
31-600
EIA/CCITT Interface
31-610 Card Jumpers
31-620 EIA/CCITT Modem Control Lines
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31-000
Data Communications