Comtech EF Data SDM-300A - Manual (Page 44)

SDM-300A Satellite Modem Revision 6
Functional Description MN/SDM300A.IOM
2–4
2.1.2 Remote Baud Rate
The remote communications baud rate and parity are programmed by the front panel control in
the Utility: System menu (refer to Chapter 5). The programmed baud rate and parity are
maintained indefinitely in RAM on the M&C module. The parity bps can be set to EVEN or
ODD. The available baud rate are listed below:
• 110
• 150
• 300
• 600
• 1200
• 2400
• 4800
• 9600
• 19200
2.1.3 Remote Address
To communicate with the established remote communications protocol, configure each modem
for one address between 1 and 255. Each modem on a common remote communications link
(RS-485) must have a distinct address. Use the front panel control in the Utility: System menu
(Chapter 5) to program the address.
An RS-485/RS-232 communications link remotely controls and monitors all modem functions.
Use the 2- or 4-wire, half-duplex RS-485 interface to connect between two or more modems
and switches on a common communications link. Use the RS-232 interface to communicate
with a single modem.
Note: Address 0 is reserved as a global address which simultaneously addresses all devices on a
given communications link.