Paradyne 7974 User Manual page 115

Table A-6. Synchronous Data Port Options for Model 7975 (3 of 4)
7900-A2-GB21-20
Send All Ones on Data Port Not Ready
Possible Settings: Both, Disable, DTR, RTS
Default Setting: Both
Specifies the conditions on the data port that determine when valid data is not being sent
from the DTE. When this condition is detected, all ones are sent to the network.
Both – Monitors both DTR and RTS. If either is interrupted, all ones are sent to the
network.
Disable – Disables the monitoring of interchange circuits from the DTE connected to the
synchronous data port.
DTR – Monitors the DTE Ready interchange circuit CD (CCITT 108/1/2). When DTR is
interrupted, all ones are sent to the network.
RTS – Monitors the Request-to-Send interchange circuit CA (CCITT 105). When RTS is
interrupted, all ones are sent to the network.
NOTE: Set Send All Ones on Data Port Not Ready to RTS or Disable if X.21 is selected
for Port Type (see Port Type
Action on Network LOS Alarm
Possible Settings: Halt, None
Default Setting: Halt
Specifies the action taken on the synchronous data port when an LOS (Loss Of Signal)
alarm is received on the network interface.
Halt – Stops the transmission of data on the data port and disables the data port when an
LOS alarm is received on the network interface. When LOS alarms are received, all ones
are sent on the Received Data interchange circuit BB (CCITT 104). The Clear-to-Send
interchange circuit CB (CCITT 106) is interrupted.
None – Makes the data port unaffected by LOS alarms received on the network interface.
Network Initiated Data Channel Loopback
Possible Settings: Disable, Enable
Default Setting: Disable
Allows the initiation and termination of a Data Channel Loopback (DCLB) by the receipt of
a DCLB-actuate sequence or DCLB-release sequence from the network or far-end device.
Disable – Ignores the DCLB-actuate and DCLB-release sequences for this port.
Enable – DCLB-actuate and DCLB-release sequences are recognized for this port.
December 2001
on page A-9).
A. Configuration Options
A-11