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

CDM-570A/570AL Satellite Modem with Optional Packet Processor
Front Panel Operation

6.1.1 LED Indicators

LED
UNIT STATUS
Tx TRAFFIC
Rx TRAFFIC
ONLINE
STORED EVENT
REMOTE
EDMAC MODE
TEST MODE
In general, the alarm relay state reflects the state of
the Front Panel LEDs. For example, if the Unit Status
LED is red, the Unit Alarm relay is active. This does
not apply to the Transmit Traffic relay, which
activates only if a Tx Traffic Fault exists – it does not
reflect the state of the Tx carrier.
FRONT PANEL LED INDICATORS FUNCTIONAL DESCRIPTION
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 is 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
The modem is either in Transparent mode (no framing), or the framing is
Off
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
6–2
MN-CDM570A
Revision 3