Comtech EF Data SDM-300A Installation And Operation Manual page 112

SDM-300A Satellite Modem
IDR BACKWARD
ALARM CONTROL
ASYNC TX TYPE
ASYNC RX TYPE
IDR TX ESC TYPE
IDR RX ESC TYPE
CTS DELAY
Rev. 4
Controls IDR monitor and alarm functions when not using a
communications link. Use this option to select ON or OFF for the RX
and TX alarms.
Press [↑] or [↓] to select the backward alarm RX or TX numbers 1
through 4. Press [ENTER] to execute the change.
Note: This selection is available only when IDR is enabled.
Select EIA-232, EIA-485 (4-WIRE), or EIA-485 (2-WIRE) for ASYNC
overhead type.
EIA-485 (2-wire) requires tying TX + and RX + as one wire, then tie
TX - and RX – as the other wire.
Note: Available only with ASYNC overhead option.
Select EIA-232 or EIA-485 for ASYNC overhead type.
Note: Available only with ASYNC overhead option.
Select 2-32K Audio or 64K Data for the IDR TX ESC type.
Note: Available only with TX IDR overhead option.
Select 2-32K Audio or 64K Data for the IDR RX ESC type.
Note: Available only with RX IDR overhead option.
Sets the delay in seconds (0 to 60) for the Clear To Send (CTS) signal.
Operation
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