Comtech EF Data SMS-758 - Manual (Page 49)

SMS-758 Modem Protection Switch Operation
MN/SMS758 Rev. 3 3–11
3.2.2.5 Demodulator Delay
This menu displays the current online delay for this prime demodulator, and allows the
operator to enter a new parameter. The DEMOD DELAY is the time allowed for the
prime demodulator to clear its faulted state. At the end of this delay, if the prime is no
longer faulted, it will be restored to online status. If the prime is still faulted, the backup
demodulator is committed to that channel and will be unavailable for any other faulted
prime having the same or lower priority.
The operator selects “1”, “2”, or “3”:
•
“1” for no time delay.
•
“2” for manual.
•
“3” for automatic delay selection (2 times the sweep period).
Entering “1” or “3” and pressing [ENT] loads the information into memory. Entering “2”
and pressing [ENT] allows the operator to enter from 0 to 127.5 seconds, in 0.5 second
increments. When [ENT] is pressed again, the delay data is loaded into memory.
If nothing is entered, the switch automatically defaults to “3” (automatic).
3.2.2.6 Modulator Delay
The Modulator Delay menu displays the current online delay for this prime modulator,
and allows the operator to enter a new parameter. The MOD DELAY is the time allowed
for the prime modulator to clear its faulted state. At the end of this delay, if the prime is
no longer faulted, it is restored to online status. If the prime is still faulted, the backup
modulator is committed to that channel, and will be unavailable for any other faulted
prime having the same or lower priority.
The operator selects “1” or “2”:
•
“1” for no time delay.
•
“2” for manual.
Entering “1” and pressing [ENT] loads the information into memory. Entering “2” and
pressing [ENT] allows the operator to enter from 0 to 127.5 seconds, in 0.5 second
increments. When [ENT] is pressed again, the delay data is loaded into memory.
If nothing is entered, the switch defaults to 1 (none).
Note: In certain applications, the MOD/DEMOD DELAY and PRIORITY settings are
replaced by MODEM DELAY and PRIORITY settings. This occurs when modem switch
firmware is used instead of independent mod/demod.