Led Indicators - Comtech EF Data CDM-570 Installation And Operation Manual

CDM-570/570L Satellite Modem with Optional IP Module
Front Panel Operation

5.1.1 LED Indicators

The behavior of the eight front panel LED Indicators is as follows:
LED
UNIT STATUS
Tx TRAFFIC
Rx TRAFFIC
ONLINE
STORED EVENT
REMOTE
EDMAC MODE
TEST MODE
Condition Description
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
Green No Tx Traffic Faults
Off A Tx Traffic fault exists OR the Tx Carrier is in OFF state
No Rx Traffic Faults (demod and Viterbi decoder are locked, everything is
Green
OK)
An Rx Traffic fault exists (the demod may still be OK – check the fault status
Off
of the modem from the Monitor menu).
Green The modem is On Line, and carrying traffic
The modem is Off Line (standby) - forced by externally connected 1:1 or 1:N
Off
redundancy system
There is a Stored Event in the log, which can be viewed from the front panel,
Orange
or retrieved via the remote control interface
Off There are no Stored Events
The modem is in Remote Mode - local monitoring is possible, but no local
Orange
control
The modem is in Local Mode - remote monitoring is possible, but no remote
Off
control
Flashing ODU FSK control has been enabled, and there is a communications fault
Framing on, EDMAC on, and unit defined as Slave - local monitoring is
Orange
possible, but no local control
Either the modem is in Transparent mode (no framing), or the framing has
Off
been selected, but in AUPC-only mode, or EDMAC Master configuration
Orange A Test Mode is selected (Example: IF Loopback)
Off There is no Test Mode currently selected
5–2
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.
Revision 12
MN/CDM570L.IOM