Configuration Option Tables
A-11
7970-A2-GB20-00
August 1999
Table A-4.
G.703 Interface Options – Models 7976 and 7986 (2 of 2)
Line Framing
Possible Settings: CRC4, noCRC4
Default Setting: noCRC4
Specifies the framing format to be used by the G.703 interface.
H
Line Framing is only available when the standalone unit is configured as an LTU,
AutoRate is disabled, and the DSL Line rate is 2064 kbps. Otherwise the noCRC4
framing format is used. 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 when a valid signal
cannot be recovered from the network interface (LOS or conditions OOF, AIS, or EER).
Enable – An Alarm Indication Signal (AIS) is sent to the DTE in the event of an LOS or
continuous OOF condition on the DSL interface.
Disable – The failed signal on the interface is sent to the DTE in the event an LOS or
continuous OOF condition on the DSL interface.
Primary Clock Source
Possible Settings: G.703, Internal
Default Setting: Internal
Specifies where the unit will derive its timing from.
Internal – The clock source is derived from the internal oscillator.
G.703 – The clock source is derived from the G.703 interface.
Summary of Contents for Hotwire 7974
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