28
3.6 Parallel Port Connector
A standard 26-pin flat cable driver connector provides as CN20 with
following pin assignment for connection to parallel printer.
z
CN20 : Parallel Port Connector
PIN NO.
DESCRIPTION
PIN NO.
DESCRIPTION
1
STROBE
2
DATA 0
3
DATA 1
4
DATA 2
5
DATA 3
6
DATA 4
7
DATA 5
8
DATA 6
9
DATA 7
10
ACKNOWLEDGE
11
BUSY
12
PAPER EMPTY
13
PRINTER SELECT
14
AUTO FORM FEED
15
ERROR#
16
INITIALIZE
17
PRINTER SELECT LN#
18
GROUND
19
GROUND
20
GROUND
21
GROUND
22
GROUND
23
GROUND
24
GROUND
25
GROUND
26
GROUND
3.7 Keylock Connector
The following provides the pin information for Keylock with connection
from CN3.
z
CN3 : Keylock
PIN NO.
DESCRIPTION
1
330
Ω
PULL HIGH (VCC)
2 N.C.
3 GND
4 KEYLOCK
5 GND
