Installation Manual

PULSE AIR DATA MODEM TNM-M-E-0055
Jan 17 Page 19 Issue 1.0
2.2.4 LED Indications
Table 9. Details of LED Indications.
LED
Details
System
Pwr
Permanently on (not software controlled).
OK
Active (ON) when the radio is in its operational mode and has service. OFF
when in FPP or error states.
Com
Tx
Activated for min ~200 ms when serial data is input to the modem.
Rx
Activated for min ~200 ms when serial data is output from the modem.
RSSI
The LEDs are progressively activated as the signal level increases to the
various levels. The ‘L’ LED is calibrated for -115 dBm, the lowest useful
sensitivity for data comms.