User's Manual

56019201
Pag
e
© 2000 Telular Corporation
26
A1.3 LED M
ODES AND
F
UNCTIONS
As shown below, J5 is a two-pin jumper used to select the LED Mode. Refer to the LED Function
Tables for a description of each LED in "Normal Operating Mode" and "Received Signal Strength
Mode".
LED Function Table – Normal Operating Mode (J5 = OUT
)
LED Symbol Color Duty Cycle Indication
Solid ON AC Power is goodAC POWER – LED 4 Green
OFF AC Failure (<102 VAC, restores at 106 VAC)
1 Flash* System Trouble Condition – Low/Missing AC Power
2 Flashes* System Trouble Condition – Low/Missing Battery Condition
3 Flashes* System Trouble Condition – LFC
4 Flashes* System Trouble Condition – NSC
5 Flashes* System Trouble Condition – RFC
STC - LED 3 RED
6 Flashes* System Trouble Condition – DTF
Solid ON Telguard operating in Mode 1MODE – LED 2 Yellow
Fast Flash C/C off-hook to transmit signals over cellular.
Solid ON (1 sec) Telguard in Microburst transmission.
Fast Flash Microprocessor communicating with Radio.
Radio TX – LED 1 Green
OFF No Activity
* - Note: One flash = ½ sec On and ½ second OFF. In order to diagnose multiple problems on STC LED, each condition will
display for 5 seconds and then cycle to the next condition
LED Function Table – View RSSI Mode (J5 = IN
)
RSSI Value LED’s Lighted RF Signal (dBm)
NO SVC LED 1* = on, 2-4 = off
≤
-114 dBm (Lowest)
0 LED 1 = on, 2-4 = off
≤
-111 dBm
1 LED 1 = on, 2 = slow flash
LED 3-4 = off
≥
-110 dBm
2 LED 1-2 = on, LED 3-4 = off
≥
-100 dBm
3 LED 1-2 =ON, 3 =SLOW FLASH
LED 4 = off
≥
≥≥
≥
-90 dBm (Minimum signal
strength required)
4 LED 1-3 = on, LED 4 = off
≥
-80 dBm
5 LED 1-3 = on , 4 = slow flash
≥
-70 dBm
6 LED 1-4 = on
≥
-60 dBm (Highest)
*Note: LED 1 = Radio TX; LED 2 = Mode; LED 3 = STC; LED 4 = AC Power.
LED Mode Selection
OFF = NORMAL MODE
ON = VIEW RSSI MODE OR ENTER PROGRAMMING MODE
ON
OFF