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Operation
Before GT-531 Series Utility is connected to the PC correctly, please confirm these following steps:
1. The STA LED is blanking. There are 2 kinds of blanking in SMS-531.
STA LED
Blanking per 1 sec
Blanking per 50 ms
2. Confirm the RS232 connection between SMS-531 and PC is correct. Users can refer to the
following figure.
3. During the setting procedure, the external power must be turn on.
Note: If the STA LED is always on, please reset SMS-531.
1. Tool Menu
These tools include all the function operation of the GT-531 Series Utility. The description is as
follows.
(1) Project：
The parameters of the SMS-531 can be saved as the project file. The operation functions
Description
Normal mode
The pin code is wrong. The users need to set
PIN/PUK code in the GT-531 Series Utility.
SMS-531 Quick Start v1.0 2013/01
4/8
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