Table 8.9-1.
25 Pin Asynchronous Connector
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Signal Names and Description
Pin Number
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Protective Ground
1
Transmit Data (TX)
2
Receive Data (RX)
3
Request To Send (RTS)
4
Clear To Send (CTS)
5
Data Set Ready (DSR)
6
Signal Ground (GND)
7
Carrier Detect (CD)
8
+ Transmit current loop data (20 mA)
9
+ 5 VDC 200 mA (fuse on board)
10
- Transmit current loop return (20 mA)
11
Reverse Channel Option
12
No Connection
13
No Connection
14
No Connection
15
No Connection
16