Comtech EF Data SNM-1001 - Manual (Page 31)

Operation SNM-1001 Network Control Modem
3–2 Rev. 1
3.1.1 LED Indicator
General modem status and summary fault information are indicated by 10 LEDs on the
front panel. The indicators are defined in the following tables.
Faults
Name LED Description
Transmit Red Indicates that a fault condition exists in the transmit chain.
Receive Red Indicates that a fault condition exists in the receive chain.
Common Red Indicates that a common equipment fault condition exists.
Stored Yellow Indicates that a fault has been logged and stored. The fault may or
may not be active.
Status
Name LED Description
Power ON Green Indicates that power is applied to the modem.
Transmitter ON Green Indicates that the transmitter is currently ON. This indicator reflects
the actual condition of the transmitter, as opposed to the
programmed condition.
Carrier Detect Green Indicates that the decoder is locked.
Test Mode Yellow Flashes when the modem is in a test configuration.
Alarms
Name LED Description
Transmit Yellow Indicates that a transmit function is in an alarm condition.
Receive Yellow Indicates that a receive function is in an alarm condition.
3.1.2 Front Panel Keypad Option
This feature is a future option which will allow the user to plug in a hand-held keypad,
and will allow access to all programming capabilities.
3.2 Clocking Options
The clocking is addressed through the NMS.