ICP DAS USA GRP-520, Руководство пользователя

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GRP-520 User Manual, V1.30, Aug. 2015
11
2.4 LED indicators
There are three LED indicators to help users to judge the various conditions of GRP-520.
The description is as follows
：
A. PWR(Green)：Power LED to indicate whether the external power is input or not. The
description is as follows:
The external power is active The external power is not active
on off
B. OS(Red)：OS LED indicates if the OS is normal or fail.
Normal Fail
Heart beat (1 sec.) Always ON or OFF
C. FW(Red)：This LED indicates the status of VxServer firmware (Serial port to 3G).
Connected Connecting Fail
500ms ON / 500ms OFF Blanking(4 sec) Always ON or OFF
D. FW(Green)：This LED indicates the status of RTU Client firmware.
Normal Fail
500ms ON / 500ms OFF
Always ON or OFF
E. 3G (Red)：The LED indicates the status of 3G module.
(the 3G module need about 60 seconds to register network usually)
Registered 3G/GPRS data transmit Fail
800ms ON / 800ms OFF 200ms ON, 200ms OFF
Always ON or OFF