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INSTALLATIONS

24 IB865 User’s Manual

J2: Parallel Port Connector

The following table describes the pin out assignments of this connector.

Signal Name Pin # Pin # Signal Name

Line printer strobe 1 14 AutoFeed

PD0, parallel data 0 2 15 Error

PD1, parallel data 1 3 16 Initialize

PD2, parallel data 2 4 17 Select

PD3, parallel data 3 5 18 Ground

PD4, parallel data 4 6 19 Ground

PD5, parallel data 5 7 20 Ground

PD6, parallel data 6 8 21 Ground

PD7, parallel data 7 9 22 Ground

ACK, acknowledge 10 23 Ground

Busy 11 24 Ground

Paper empty 12 25 Ground

Select 13 N/A N/A

J4, J5: COM1 and COM2 Serial Ports Connector

J4 and J5 both 10-pin headers, are the onboard serial port connectors.

Pin #

Signal Name

RS-232 RS-422 RS-485

1 DCD TX- DATA-

2 RX TX+ DATA+

3 TX RX+ NC

4 DTR RX- NC

5 GND GND GND

6 DSR RTS- NC

7 RTS RTS+ NC

8 CTS CTS+ NC

9 RI CTS- NC

Fixed as

RS-232

Configurable

as RS-232/

RS-422/485

with jumpers

JP2/JP3/JP4

10 NC NC NC

Intel 865G User Manual

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