Product specifications

CRS-300 1:10 Redundancy Switch Revision 16
Modem, RMI/TMI, and Switch Configuration MN/CRS300.IOM
5–22
To deactivate a modem, see
Chapter 7.4.5 (CONFIG) ACTIVE MODEMS.
5.5.3.2 Verify Connection To Each Active Modem
The LEDs are arranged in columns corresponding to each modem, and should accurately reflect
the status of each.
Step Procedure
1
Verify that the Status LED for each modem shows a GREEN light, indicating no faults.
(The LEDs [on the Switch] will reflect the LEDs on the front panel of each modem.)
2
Verify that the Online LED is lit for all connected TMIs with the modems attached.
3
Verify that the Online LED is not lit for the Redundant Modem (for systems not using
the CRS-280L IF Switch).
4
Verify that the Bridge LED is lit for only one Traffic Modem.
For modems: Use the INFO and MONITOR menus to view the status of the modems, in addition
to viewing the LEDs.
For Switch: Use MONITOR Æ COMM-STATE to verify the modems that are responding via
remote control.
For real-time monitoring: Use MONITOR Æ I/O to verify the modems that are responding via
remote control. Communication is slowed to aid viewing.
5.5.3.3 Set Operation Mode
The CRS-300 is shipped in the Auto-Off (i.e. Manual) operating mode. This setting causes the
Stored Event LED to blink. The system is operational; however, it is still operating in
Manual
mode. In the menu, this manual mode is called Auto-off. While in Manual mode, the User can
manually select which Traffic Modem will be bridged or backed-up.
While in
Manual mode, the Switch does not automatically react to any Traffic Modem failures it
detects. Comtech EF Data recommends that an unattended system be configured to operate in
Auto mode.
When
Auto mode is enabled, the first active modem that fails is first bridged by the Redundant
Modem, and then backed up.
IMPOR TANT
Do not leave the CRS-300 in this view.
IMPOR TANT
Do not leave the CRS-300 in this view.