Mocomtech CRS-300 operation manual Switch to CDM-625 Redundancy Configuration

CRS-300 1:10 Redundancy Switch	Revision 16
Modem, RMI/TMI, and Switch Configuration	MN/CRS300.IOM

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.

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

IMPORTANT Web page. Hardware revision upgrades must be performed at CEFD.

5.2.4Modem Redundancy Configuration

5.2.4.1Switch 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.

5.2.4.2Switch 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

ÆSet baud rate to 9600

To configure the CDM-625 for 1:N redundancy:

Step Procedure

1The 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.

3Power up all CDM-625s. Verify that each Traffic Modem is ONLINE via the front panel LEDs.

5–3