User's Manual

Introduction to the TTMS System
TTMS Reader
Tanker Truck Monitoring System- User’s Guide 8
1.3.1.2 AVL Reader J1/J2 Pinout
Table 1-2. J1 Connector Pinout
Pin Signal
1 EXT Input
2 NC
3 EXT Output 3
4 -Vin (GND)
5 +Vin (+24VDC)
6 RS232 – TxD J45 to LCU
7 RS232 – RxD J45 to LCU
8 RS232 – COMM J45 to LCU
location command unit
9 NC
10 NC
Table 1-3. J2 Connector Pinout
Pin Signal
1 NC
2 EXT Output 1
3 NC
4 EXT Output 2
5 -Vin (GND)
6 +Vin (+24VDC)
7 RS485 A
8 RS485 B
9 RS485 COMM
10 RS232 – COMM
11 RS232 – TxD
12 RS232 – RxD