3510T/3510KP/3512T/3512KP System Manual
C-2
Parallel Port Connector (LPT1)
This is a 25-pin DB connector.
Pin
Signal
Pin
Signal
1A
STROBE
14A
AUTOFEED
2A
PD(0)
15A
PERROR
3A
PD(1)
16A
INIT
4A
PD(2)
17A
SELIN
5A
PD(3)
18A
GND
6A
PD(4)
19A
GND
7A
PD(5)
20A
GND
8A
PD(6)
21A
GND
9A
PD(7)
22A
GND
10A
PACK
23A
GND
11A
PBUSY
24A
GND
12A
PE
25A
GND
13A
SELECT
Serial Port Connectors
Serial ports RS-232 and RS-485 are supported on the AHIP4+ and the AHIP6+ boards.
Only one connector can be used at a time. All termination is done outside the unit.
COM1
RS-232
RS-485
Pin
Signal
Pin
Signal
1A
DCD1
1B
TXD-
2A
RXD1
2B
TXD+
3A
TXD1
3B
TXD TERM -
4A
DTR1
4B
TXD TERM +
5A
GND
5B
GND
6A
DSR1
6B
RXD-
7A
RTS1
7B
RXD+
8A
CTS1
8B
RXD TERM +
9A
RI1
9B
RXD TERM -
.
Technical Note
For TXD termination, connect a 150
Ω
, ½ watt resistor from pin 3B to pin
4B, with pin 1B connected to pin 3B and pin 2B connected to pin 4B.
For RXD termination, connect a 150
Ω
, ½ watt resistor from pin 8B to pin
9B, with pin 6B connected to pin 9B and pin 7B connected to pin 8B.