Advertisement
LED indicators
LED
on
EXT (red)
off
Blinking*2
2 sec
Blinking*1
3G (green)
2 sec
off
STA (orange)
Note: When the SMS-531 sends voice alarm, the 3G LED is continuous on.
Installation
If users want to start SMS-531 normally, it needs to follow these steps to install the SMS-531
below:
1. Install the antenna
2. Plug in the normal SIM card (Before apply the SIM card, confirm it is OK by mobile
phone.)
3. Install the micro SD (Option, for the voice alarm files)
4. Pin06 and Pin07 of the power input connect to the DC.+VS and DC.GND of the power
supply.
5. It is needed to wait for 30 ~ 50 seconds to search the 3G base and register to the ISP.
After finishing the process, SMS-531 would be in normal operation mode and the STA
LED would blank per 1 sec. The start time of SMS-531 depends on the strength of 3G
signal.
The external Power is active
The external Power is not active
3G module normal (After modem registered.)
Use 3G SIM card.
3G module normal (After modem registered.)
Use 2G SIM card.
3G module fail (or Blinking(not 2 sec))
Normal
Blanking (1 sec)
Description
3G Fail
Always on or off
SMS-531 Quick Start v1.0 2013/01
PIN code is wrong
Blinking per 50 ms
2/8
Advertisement
