Mocomtech CRS-300 - Manual (Page 147)

CRS-300 1:10 Redundancy Switch Revision 16
Modem, RMI/TMI, and Switch Configuration MN/CRS300.IOM
5–3
changing configuration settings using the front panel keypad and menus, refer to the Front Panel
Operation chapter in the pertinent modem’s Installation and Operation Manual.
Using the modem’s manual, configure each Traffic Modem for the proper Rx and Tx IF, power
settings, modulation, code rates, and traffic data settings.
For User-to-Switch or User-to-Modem addressing schemes, see Appendix B. ADDRESSING
SCHEME INFORMATION .
IMPORTANT
If the modem does not meet these listed requirements, contact Comtech EF
Data. Flash firmware upgrades are free and may be downloaded from the CEFD
Web page. Hardware revision upgrades must be performed at CEFD.
5.2.4 Modem Redundancy Configuration
5.2.4.1 Switch to CDM-570/570L, CDM-600/600L Redundancy Configuration
The CRS-300 communicates to the Redundant and Traffic modems via a serial EIA-232 bus
contained within each of the DB-25 control/data cable.
Configure the COMMS of each of the modems via the modem front panel menu (note that EIA-
232 is referred to on the menus as RS-232):
CONFIG Æ REMOTE: RS-232, 9600 baud, format 8-N-1.
5.2.4.2 Switch to CDM-625 Redundancy Configuration
The CRS-300 communicates to the Redundant and Traffic modems via a serial COMM bus
contained within each of the DB-25 or HD-15 control/data cables.
Configure the COMMS of each of the modems via the modem front panel menu:
SELECT: Configuration Æ Remote Æ Remote Control = Remote Æ RS-232
Æ Set baud rate to 9600
To configure the CDM-625 for 1:N redundancy:
Step Procedure
1 The DB-25 “Data” connector on the modem back panel must be configured for
“Redundancy Mode”. On each modem, set “1:N” redundancy to the Active state:
SELECT: Utility Æ 1:N Æ Enable,Disable set to Enable.
Press ENTER to save settings
2 Power down all CDM-625s.
3 Power up all CDM-625s. Verify that each Traffic Modem is ONLINE via the front
panel LEDs.