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Rev 1.0 May.10
Interface Port Pin-Outs
Serial Port
Unused
< -
CTS (Clear to Send)
- >
RTS (Request to Send)
< -
DSR (Data to Send)
Figure 2-1: Serial Port Diagram: Female DB-9 DCE (not to scale)
The relay contacts are rated for 30 Vdc max and 500mA max
Power Connector
Digital
Digital
4 3
Output
Input
2 1
Ground (black)
Power (red)
Figure 2-2: Power Connector (not to scale)
Warning:
Explosion Hazard - Do not disconnect equipment unless power has been
switched off or the area is known to be non-hazardous.
5
9
< - >
GND (Ground)
4
< -
DTR Data Terminal Ready)
8
3
< -
Rx (Receive)
7
2
- >
Tx (Transmit)
6
1
- >
DCD (Data Carrier Detect)
Specifications
11
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