EtungTech
LED-328 User Manual
7
1.6.2
Indicator Light Description
LED Indicator
Light
Indication
Status
Description
Status light
State
Always light
Connected to data center
Extinguished
No connection to data center
Flash quickly
Connecting to data center
Flash slowly
Dialing
Power light
power
Always light
Power supply OK
Extinguished
No power supply
Table 1-1: LED-328 indicator light description
1.6.3
Serial Port Definition
Type
RS-232
Pin
2
3
5
Definition
RXD
(out)
TXD
(in)
GND
Table 1-2: LED-328 serial port pin definition
Attention: LED-328 TTL-to-RS232 serial port is used only to configure or
update the model, and it cannot be used to connect PC and publish information.