High Capacity Terrestrial Digital Service - and Addendum 1 - August 1983
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Functional Criteria - Voice Frequency Transmission - Equipment- Maintenance Terminating Unit - 2-Wire Special Services
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Network Circuit Access Test Set Functional Criteria
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Data Communications Using the Switched Telecommunications Network
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Data Communications Using Voiceband Private Line Channels
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Digital Data System Channel Interface Specification
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Procedures for Providing Technical Reference Data to Incorporate Equipment in TIRKS/CDS-MDS
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Data Communications Using Local Area Data Channels
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Facility Interface 31-TT-MB, Dial Repeating Tie Trunk Transmission Interface Type III E/M Lead Signaling Interface Type 1 4-Wire Terminal Transmits Signal Battery on the M Lead, 31-TT-MB
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Facility Interface 32-TT-MB, Dial Repeating Tie Trunk Transmission Interface Type III E/M Lead Signaling Interface Type II (4-Wire Terminal Transmits Signal Battery Via Contact Closure to M Lead)
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