Serial Interface Connectors
Pin assignments for the serial interface port connectors are listed in the following table.
RS-232C Serial Port Connector Pin Assignments
Pin | Signal | Description |
1 | DCD | Carrier detect |
2 | Serial In# | Receive data |
3 | Serial Out# | Transmit data |
4 | DTR# | Data terminal ready |
5 | Ground | Signal ground |
6 | DSR | Data set ready |
7 | RTS | Request to send |
8 | CTS | Clear to send |
9 | RI | Ring indicator |
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Parallel Interface Connector
Parallel interface specifications for this port conform to the
Parallel Port Connector Pin Assignments
Pin | Signal | Pin | Signal |
1 | Strobe# | 14 | Auto feed# |
2 | Data bit 0 | 15 | Fault# |
3 | Data bit 1 | 16 | INIT# (Initialize) |
4 | Data bit 2 | 17 | SLCT IN# (Select in) |
5 | Data bit 3 | 18 | Ground |
6 | Data bit 4 | 19 | Ground |
7 | Data bit 5 | 20 | Ground |
8 | Data bit 6 | 21 | Ground |
9 | Data bit 7 | 22 | Ground |
10 | ACK# (Acknowledge) | 23 | Ground |
11 | Busy | 24 | Ground |
12 | Error | 25 | Ground |
13 | Select |
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