Paradyne 7974 User Manual page 118

A. Configuration Options
Table A-7. G.703 Interface Options for Model 7976 (2 of 2)
A-14
Line Framing
Possible Settings: CRC4, noCRC4
Default Setting: noCRC4
Specifies the framing format to be used by the G.703 interface.
T
Line Framing is only available when the standalone unit is configured as an LTU.
The NTU is automatically configured to match the framing format used by the LTU.
CRC4 – CRC4 framing formatting is used for transmitted and received data over the
Network Interface.
noCRC4 – Non-CRC4 framing format is used for transmitted and received data over the
Network Interface.
Time Slot 16
Possible Settings: Signaling, Data
Default Setting: Signaling
Specifies whether the G.703 interface is used for voice or data.
Signaling – Time slot 16 is used for signaling (the unit is in voice mode).
Data – Time slot 16 is used for data (the unit is in data mode).
Send (AIS) on Network Failure
Possible Settings: Enable, Disable
Default Setting: Enable
Specifies the action taken on the signal transmitted to the G.703 interface when a valid
signal cannot be recovered from the network interface (LOS or conditions OOF or EER).
Enable – An Alarm Indication Signal (AIS) is sent to the DTE in the event of an LOS, OOF,
or EER condition on the DSL interface.
Disable – The failed signal on the interface is sent to the DTE in the event an LOS, OOF,
or EER condition on the DSL interface.
Primary Clock Source
Possible Settings: G.703, Internal
Default Setting: Internal
Specifies where the unit derives its timing from.
T
Primary Clock Source is only available when the unit is configured as an LTU. When
configured as an NTU, the clock source is derived from the DSL.
Internal – The clock source is derived from the internal oscillator.
G.703 – The clock source is derived from the G.703 interface.
December 2001 7900-A2-GB21-20