Comtech EF Data RSU-503 - Manual (Page 67)

Remote Control Operation RSU-503 Redundancy Switch Unit
B–6 Rev. 8
Redundant
System Comm
Poll Command
:
Response:
Response:
<add/POLL_XXXX'cr'
>add/POLL_A'cr'
Address = XXX'cr'
Baud Rate = YYYYY'cr'
Parity = ZZ'cr''lf']
<add/POLL_B'cr'
Address = XXX'cr'
Baud Rate = YYYY'cr'
Parity = ZZ'cr''lf']
Where:
add = Switch address.
XXXX = A, B, or both.
XXX = 1 to 255.
YYYYY = 19200, 9600, 4800, 2400, 1200, 600, or 300.
ZZ = EV, OD, or NO (none, for 8 bit).
This command is used to retrieve address, baud rate, and parity
information for the three communication links:
• Terminal to switch
•
Switch to RFT Unit A
•
Switch to RFT Unit B
The user can specify the polling of either Unit A or Unit B, or both,
but must know the address of the switch.
Upon receipt of this command, the switch will commence a polling
sequence of the specified unit(s) at all possible combinations of
address, baud rate, and parity. The polling is completed when
polled unit responds, or all combinations have been exhausted.
The switch then transmits the polled information back to the user
terminal.
If the switch does not receive a response from the polled unit, it
will respond with the following message in place of the address,
baud rate, and parity information:
<add/POLL_X'cr' X = A or B
Unable To Communicate'cr''lf']
Note: Approximately 24 minutes are required to poll all
combinations of address, baud rate, and parity per unit (A or B).
The only way to abort this operation once it has been started is to
cycle power.