Comtech EF Data CDM-570 - Manual (Page 88)

CDM-570/570L Satellite Modem with Optional IP Module Revision 12
Front Panel Operation MN/CDM570L.IOM
5–2
5.1.1 LED Indicators
In general, the Alarm relay state will reflect the state of
the Front Panel LEDs. For instance, if the Unit Status
LED is red, the Unit Alarm relay will be active, etc. The
one exception is the Transmit Traffic relay. This will
only be activated if a Transmit Traffic Fault exists – it
does not reflect the state of the TX carrier.
The behavior of the eight front panel LED Indicators is as follows:
LED Condition Description
UNIT STATUS
Red A Unit Fault exists (Example: PSU fault)
Orange No Unit Faults, but a Traffic Fault, or ODU (BUC or LNB) fault exists
Green No Unit Faults, or Traffic Faults
Tx TRAFFIC
Green No Tx Traffic Faults
Off A Tx Traffic fault exists OR the Tx Carrier is in OFF state
Rx TRAFFIC
Green
No Rx Traffic Faults (demod and Viterbi decoder are locked, everything is
OK)
Off
An Rx Traffic fault exists (the demod may still be OK – check the fault status
of the modem from the Monitor menu).
ONLINE
Green The modem is On Line, and carrying traffic
Off
The modem is Off Line (standby) - forced by externally connected 1:1 or 1:N
redundancy system
STORED EVENT
Orange
There is a Stored Event in the log, which can be viewed from the front panel,
or retrieved via the remote control interface
Off There are no Stored Events
REMOTE
Orange
The modem is in Remote Mode - local monitoring is possible, but no local
control
Off
The modem is in Local Mode - remote monitoring is possible, but no remote
control
Flashing ODU FSK control has been enabled, and there is a communications fault
EDMAC MODE
Orange
Framing on, EDMAC on, and unit defined as Slave - local monitoring is
possible, but no local control
Off
Either the modem is in Transparent mode (no framing), or the framing has
been selected, but in AUPC-only mode, or EDMAC Master configuration
TEST MODE
Orange A Test Mode is selected (Example: IF Loopback)
Off There is no Test Mode currently selected