Specifications

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