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CDM-700 High Speed Satellite Modem
Front Panel Operation
6.1.1 Front Panel LED Indicators
LED
Color
Green
Orange
Unit Status
Red
Green
Orange
Tx Status
Red
Off
Green
Orange
Rx Status
Red
Off
Green
On line
Off
Orange
Stored Event
Off
Green
Transmitter On
Off
Green
Remote/EDMAC
Off
Green
Test Mode
Off
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.
IMPORTANT
The behavior of the eight front panel LEDs adjacent to the keypad
indicate the operational status of the CDM-700, and are described below
in Table 6-1.
Table 6-1. Front Panel LED Indicators
Condition
No Unit Faults or Alarms exists
No Unit Faults, but a Traffic fault exists
A Unit Fault exists
No Tx Traffic Faults or Alarms exists
A Tx Traffic Alarm exists
A Traffic Fault exists
Unit not configured for Modulator or Interface Tx is not enabled.
No Rx Traffic Faults or Alarms exists
A Rx Traffic Alarm exists
A Rx Fault exists
Unit not configured for Demodulator
The Unit is On Line, and carrying traffic
The Unit is Off Line (standby) – forced by externally connected 1:1 or 1:N
redundancy system
There is a Stored Event in the log, which can be viewed from the front panel, or
retrieved via the remote control interface
There are no Stored Events
Transmitter is currently on. This indicator reflects the actual condition of the
transmitter, as opposed to the programmed condition.
Transmitter is currently OFF.
The Unit is in Remote Communication Mode.
Local monitoring is possible, but no local control
The Unit is in Local Mode – remote monitoring is possible, but no remote control
A Test Mode is selected (Example: IF Loopback)
There is no Test Mode currently selected.
6–2
Revision 5
MN/CDM700.IOM
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