Doc# E166703 10-5
10: Using the Optional Display
Electro Industries/GaugeTech
The Leader In Power Monitoring and Smart Grid Solutions
Electro Industries/GaugeTech
The Leader In Power Monitoring and Smart Grid Solutions
10.3.2: Communication Port Specifications
Serial Interface COM1
Ethernet Interface
NOTE: Ethernet networks must be installed by a trained and qualified person.
LED:
Specs for Com 1 D-Sub 9 pin plug connector via an RS485 cable. Interfit
bracket is #4-40 (UNC).
Asynchronous Transmission RS232C / RS422 / RS485
Data Length 7 or 8 bits
Stop Bit 1 or 2 bits
Parity None, odd or even
Data Transmission Speed 2,400 to 115.200 kbps, 187,500 bps
Connector D-Sub 9 pin (plug)
Ethernet (LAN) IEEE802.3i/ IEEE802.3u, 10BASE-T/100BASE-TX
Connector Modular jack (RJ45) x 1
LED Contents
Green lit Data transmission is available
blinking Data transmission is occurring
Pin
Arrangement
Pin No. RS485
Signal
Name
Direction Meaning
1 RDA Input Receive Data A(+)
2 RDB Input Receive Data B(-)
3 SDA Output Send Data A(+)
4 ERA Output Data Terminal Ready
A(+)
5 SG - Signal Ground
6 CSB Input Send Possible B(-)
7 SDB Output Send Data B(-)
8 CSA Input Send Possible A(+)
9 ERB Output Data Terminal Ready
B(-)
Shell FG - Frame Ground
(Common with SG)