Compaq NetPorty II manual 2 25pol sub-min-D male, Connector definition

Hardware

Connector

3.6.225pol sub-min-D male

To connect the NetPorty II with the PC it is possible to use the Centronics (LPT) port directly or to use the adapter cable to use the RS232 (COM) port. In both cases the pinning of the 25pol sub-min-D male is the same.

Connector definition:

Pin	I/O	Usage	Description
1	Input	Parallel	Strobe
2	Input	Parallel	D0
3	Input	Parallel	D1
4	Input	Parallel	D2
5	Input	Parallel	D3
6	Input	Parallel	D4
7	Input	Parallel	D5
8	Input	Parallel	D6
9	Input	Parallel	D7
10	Output	Parallel	/acknlg
11	Output	Parallel	Busy
12	Output	Parallel	Paper empty
13	Output	Parallel	Slct
14	Input	Parallel	/autofd
15	Output	Parallel	/error
16	Input	Both	high -> RESET; low -> Operational
			/init DTR (Porty RESET in): switch level 2.5V
			input range -40..+40V, low speed 10ms
			A weak pull-up and pull-down is necessary to
			define with special mounting whether the
			reset line is active or not if this line is not
			connected.
17	Input	Parallel	/slct in
18	X	Both	Ground
19	Input	Serial	TX (PC -> Porty)
20	Output	Serial	RX (Porty -> PC)
21	Input	Serial	RTS
22	Output	Serial	CTS
23	Input	Serial	Free input (DTR)
24	Output	Serial	DSR
25	Input	Serial	Free input (as serial master it can be used as
			CD or RI)
			and also optional power input source
Version 1.03
3-10