ABB NGC Series Quick Start Manual

Comm1 and Comm 2 Pin-outs/Terminations
RS232 RS485
PIN
COMM 1 (J8) COMM 1 (J8)
1 Power Out Power Out
2 Ground Ground
3 Switched Power Out Switched Power Out
4 Operate Operate
5 Not Used RRTS
6 Request To Send Bus +
7 Transmit Data Bus -
8 Receive Data No Connection
9 Clear To Send (CTS) No Connection
COMM 2 (J10) COMM 2 (J10)
1 Power Out Power Out
2 Ground Ground
3 Switched Power Out Switched Power Out
4 Operate Operate
5 Not Used RRTS
6 Request To Send Bus +
7 Transmit Data Bus -
8 Receive Data No Connection
9 Clear To Send (CTS) No Connection
TERMINATIONS Comm 1 (J9)
First or Intermediate Unit (RS-485) Pins 2–3
Last or Only Unit (RS-485) Pins 1–2
RS232 Pins 2–3
Figure 1: Tubing layout
# Name
1 Carrier gas
2 Cal gas
Feed through
3
assembly
Sample
4 conditioning
module
5 Sample probe
6 Vent lines
Figure 2: NGC Terminal Board
RS422
COMM 1 (J8)
Power Out
Ground
Switched Power
Out
Operate
RTS
Transmit Bus +
Transmit Bus -
Receive Bus +
Receive Bus -
COMM 2 (J10)
Power Out
Ground
Switched Power
Out
Operate
RTS
Transmit Bus +
Transmit Bus -
Receive Bus +
Receive Bus -
Comm 2
(J11)
Pins 2–3
Pins 1–2
Pins 2–3
A B B M E A S U R E M E N T & A N A LY T I C S
NGC series
Quick start guide
Natural gas analyzers
Gas chromatograph products
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