Comtech EF Data CRS-200 - Manual (Page 18)

Physical Description CRS-200 Redundancy Switch
2–2 Rev. 1
Table 2-1 Switch Led Indicators
LED Color Condition
Red A Switch Fault exists (Example: PSU fault)
Unit Status
Green No Switch Faults
Off There are no Stored Events
Stored Event Orange There are Stored Events, either for the switch itself or the
modems attached to it
Off The Switch is in Local Mode - remote monitoring is
possible, but no remote control
Remote
Orange The Switch is in Remote Mode – control changes are
disabled via the front panel keypad
There are 5 LED indicators for each of the 10 TMIs that may be plugged into the rear of the switch, and 4 of
the 5 are repeated an eleventh time for the RMI. These are described in Table 2 below.
Table 2-2 Modem Led Indicators
LED Color Condition
Red A Unit Fault exists
Orange No Unit Faults, but a Traffic Fault exists OR the TMI is
not plugged in
Unit Status
Green No Unit Faults, or Traffic Faults
Green No Tx Traffic Faults Transmit
Traffic
Off A Tx Traffic fault exists OR the TMI is not plugged in
Green No Rx Traffic Faults Receive
Traffic
Off An Rx Traffic fault exists OR the TMI is not plugged in
Green The Unit is On Line, and carrying traffic
On line
Off The Unit is Off Line (standby) - forced by the Switch
Orange Modem is currently being Bridged by Redundant Modem
Bridged
Off Modem is not being Bridged
The last indicator is not repeated for the redundant modem, since it cannot bridge itself.
2.2 Rear Panel
See Figure 2. External cables are attached to connectors on the rear panel of the CRS-
200’s plug-in modules. These comprise the IEC line input connectors, the Data
connectors to each modem, the User Data Interface connector for each traffic modem to
the outside world, the System Alarms connector, the Remote Control connector, and
Auxiliary RS-485 connector.
The IEC line input connector for each Power Supply Module contains the ON/OFF
switch for that module. It is also fitted with two fuses - one each for line and neutral
connections (or L1, L2, where appropriate). These are contained within the body of the
connector, behind a small plastic flap.
For 230 volt AC operation, use T0.5A, (slow-blow) 20mm fuses.
For 115 volt AC operation, use T1A fuses, (slow-blow) 20mm fuses.
FOR CONTINUED OPERATOR SAFETY, ALWAYS REPLACE THE FUSES WITH
THE CORRECT TYPE AND RATING.