Teledyne LGA-3500 - Laser Gas Analysis system - Manual (Page 35)

Laser Gas Analyzer Installation
Teledyne Analytical Instruments 21
Figure 3.8: Electric Connection Ports on the Central Processing
Unit for Analysis Systems Using Fiber Optic Pigtail
Table 3.1 Electric connections & definitions of Input, Output Signals of
Central Processing Unit
Socket No. On
Motherboard
Name
31 5V Power Supply
32 DGND Power Supply Ground
33 RS232-RXD
34 RS232-GND
35 RS232-TXD
36 4-20mA Concentration Output (-)
37 4-20mA Concentration Output (+)
38 4-20mA Pressure Input (-)
39 4-20mA Pressure Input (+)
40 4-20mA Pressure Input24V Power Supply
41 4-20mA Temperature Input (-)
42 4-20mA Temperature Input (+)
43 4-20mA Temperature Input 24V Power Supply
44 Warning Alarm Relay 1
1 ． Grounding pole
2 ． RS232 connection port
3 ． Cable port between central
processing unit and the
probe
4 ． 4-20mA connection port
5 ． Relay connection port
6 ． Fuse socket
7 Power supply port