4 / 44    P/N 466-2906-ML • REV A • ISS 13JUL17 
LEDs 
In the following LED descriptions, a flash is defined as 250 ms 
on and 250 ms off. Groups of flashes are separated by 1 s off. 
MI_ST 
The MI_ST LED (green) displays the status of the 
communication interface to the panel.  
Table 2: MI_ST LED status 
Power on (in case none of the cases 
below are valid) 
No power or power failure 
Initialization OK, waiting for 
communication 
Everything OK, communication running 
Failure in communication, waiting for 
reinitialization 
 
CALL 
The CALL LED (red) indicates status of the audio information 
transmitted to the central station. 
Table 3: CALL LED status 
 
RSSI 
The RSSI LED (green) indicates the field strength or signal 
strength found by the GSM module. The number of flashes 
indicates the level. 
Table 4: RSSI LED status 
No field strength (no network detected) 
Field strength indication from poor (1) to excellent (4) 
 
NET 
The NET LED (green) indicates the status of the network. The 
meaning of the number of flashes is described in Table 5 
below. 
Table 5: NET LED status 
Registered to home network 
Registered to roaming network 
PSUE 
The PSUE LED (red) indicates the status of the power supply. 
Table 6: PSUE LED status 
 
GPRS 
The GPRS LED (yellow) indicates the status of the GPRS 
communication. 
Table 7: GPRS LED status 
GPRS is available, connection established 
GPRS is available, connection established, sending data 
GPRS is available, connection not established 
 
SIME 
The SIME LED (red) indicates the status of the SIM card. The 
meaning of the number of flashes is indicated in Table 8 below. 
Table 8: SIME LED status 
Alarm transmission requirements 
All GSM module faults are logged in the control panel and 
indicated by the fault LED and corresponding fault messages 
on the keypad display. 
The transmission between appropriate central stations and the 
GSM module is constantly monitored by sending presence 
(heartbeat) messages to central station receivers. 
Advisor Master 
Advisor Master control panels do not support GPRS and OH 
receiver communication. For this purpose, ATS1809 must be 
installed. Refer to ATS1809 Universal Interface Installation and 
Programming Guide for the information on required 
programming settings. 
Advisor Advanced 
To program the required polling time in Advisor Advanced, go 
to menu “Heartbeat time” and set a value from every second 
(00:00’01) to every day (23:59’59). 
In case of the dual path reporting, if the primary CS 
communication fails, the backup CS heartbeat time is switched