G.703 is an ITU-T standard for transmitting voice or data over digital carriers such as T1 and E1. G.703 provides specifications for pulse code modulation (PCM).
G.703 also specifies E0 (64kbit/s). For information about E0 audio see G.711.
G.703 is typically transported over balanced 120 ohm twisted pair cables terminated in RJ48C jacks. However, some telephone companies use unbalanced (dual 75 ohm coaxial cables) wires, also allowed by G.703.
See also
External links
- G.703 at searchNetworking.com
- G.703 at the Connectivity Knowledge Platform
- Physical/electrical characteristics of hierarchical digital interfaces REC-G.703/e at ITU.INT
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