Chapter 1. System Overview and Modes of Operation
13
D/I Mux III User Circuit Interfaces
D/I Mux III circuit interfaces include:
• High speed synchronous data
• 56 Kbps to 1.536 Mbps (n times 56 or 64 Kbps)
• V.35 interface, RS-422/449, or RS-232C interface
• Low speed data
• 1.2 Kbps to 19.2 Kbps
• asynchronous or synchronous
• Digital Dataphone System (DDS) subrate compatible
• DS0A format
• DS0B format
• RS-232C interface
• DDS Interfaces
• Office Channel Unit Data Ports (OCUDP)
• 56 Kbps
• Switched 56 Kbps
• All Rate (2.4, 4.8, 9.6, 56 Kbps)
• 2-Wire Voice
• Foreign Exchange Service (FXS)
• Foreign Exchange Office (FXO)
• Private Line Automatic Ringdown (PLAR)
• Tandem Access (TA)
• 800 Service
• Megacom
• 2-Way Megacom
• Direct Inward Dialing (DID)
• Dial Pulse Origination (DPO)
• Dial Pulse Termination (DPT)
• MXS, MXO (used with Northern Telecom Meridian PBX)
• Orderwire