eTung PLC-505, User Manual

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PLC-505 User Manual
13
ERR Red
Always light
3G/4G model is not working or
SIM card error
Extinguished 3G/4G model is working
SVR1 Green
Always light
DTU has connected to data
center
Extinguished
DTU does not connect to data
center
SVR2 Green
Always light
Connection to mServer is
established.
Extinguished
Connection to mServer is not
established.
WIFI Green
Always light WIFI is enabled
Extinguished WIFI is not enabled
LAN1
(WAN)
Green
Always light Ethernet connection OK
Extinguished Ethernet connection not OK
LAN2 Green
Always light Ethernet connection OK
Extinguished Ethernet connection not OK
GPS Green
Always light
Has latitude and longitude
data
Flashing quickly
Found satellite signal, but has
no latitude and longitude data
Flashing slowly No satellite signal
Table 1-1 PLC-505 indicator light description
1.6.3 Serial Port Definition
Type RS-232
Pin 2 3 5
Definition
RXD TXD GND
Table 1-2: PLC-505 RS232 serial port
(Standard RS-232 DB9 male port) pin definition
Type RS-485
Pin 485A 485B GND
Definition
A B
GND
Table 1-3: PLC-505 RS485 serial port pin definition