Paradyne Hotwire 7995, Installation Instructions Manual

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15
Port (DTE) Initiated Loopbacks
Possible Settings: Disable, DTLB, DCLB, Both
Default Setting: Disable
Allows the initiation and termination of a local Data Terminal Loopback (DTLB) or
remote Data Channel Loopback (DCLB) by the DTE connected to this port. (DTLB is
equivalent to a V.54 loop 3, and DCLB is equivalent to a V.54 loop 2.) Control of these
loopbacks is through the DTE interchange circuits as specified by the V.54 standard.
Elastic Store
Possible Settings: Disable, Enable
Default Setting: Enable
When configured as the STU-C and Transmit Clock Source is set to External, used to
enable or disable a first-in, first-out (FIFO) buffer circuit for the incoming external
clock. This circuit is used to compensate for the differences between the frequencies
of the data clocks for the two units in the circuit. Do not enable Elastic Store if the
attached DCE has an elastic store buffer larger than 32 bits.
Table 4. G.703 Interface Options – Model 7996 (1 of 2)
Framing
Possible Settings: Framed, Unframed
Default Setting: Framed
Specifies whether G.704 framing is used for the G.703 interface.
Line Coding
Possible Settings: AMI, HDB3
Default Setting: HDB3
Specifies the line coding format to be used by the G.703 interface.
Line Framing
Possible Settings: CRC4, noCRC4
Default Setting: noCRC4
Specifies the framing format to be used by the G.703 interface.
Time Slot 16
Possible Settings: Signaling, Data
Default Setting: Signaling
Specifies whether the G.703 interface is used for voice or data.
Table 3. Synchronous Data Port Options – Model 7995 (3 of 3)