Honeywell | 27
6 Electrical Assembly
LED
Color
Codes
Symbol Description State Detail Description
Blink*
Connected to network.
*Denotes:
a. No Signal - Blinks at 800ms
b. Poor RSSI – Blinks at 500ms
c. Fair RSRQ - Blinks at 150ms
d. Good RSRQ - Blinks at 50ms
4
Red
Diagnostics and
Connectivity
Red
Red LED denotes for diagnostic
error codes and MI session con-
nection status.
Example:
Low Battery Voltage (Error Code
13): 1 Red blink, followed by 5
seconds pause, and then followed
by 3 Red blinks.
Note:
1. During booting, all LEDs blink thrice (i.e., LEDs 1-3: Blinks green thrice, LED 4: Blinks red
thrice) simultaneously.
2. During factory reset, all LEDs blink serially thrice (i.e., First: LED 1 blinks green > Second:
LED 2 blinks green > Third: LED 3 blinks green > Fourth: LED 4 blinks red, and this
sequence repeats three times).
LED Error Codes:
Error code
Description
Bit Number Corresponding Decimal Value Displayed error code on LEDs
Self test failure 0 0 11
Radio module
failure
1 1 12
Low battery
voltage
2 2 13
SIM card error 3 4 21
Data con-
nection failure
4 8 22
Radio module
echo failure
5 16 23
Call dis-
connected
abruptly
6 32 31
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