F-2 Appendix F
Appendix F
Interface connections and pinouts
Interface connector pinouts
Use the following pinouts and descriptions of the various Elite XL interface
connectors if you need to purchase or make a new cable.
RS-422 Serial:
IBM PC/XT (P1)
25 PIN SERIAL PORT
SIGNAL
PIN
DIRECTION
SHELL
CH. GND
1
TXD
2
RXD
3
RTS
4
CTS
5
DSR
6
SIG.GND
7
DCD
8
DTR
20
PIN
SHELL
1
2
3
4
5
6
7
8
HSKO
HSKI
TXDB-
SIG.GND
RXDB-
TXDB+
NC
RXDB+
SIGNAL
DIRECTION
PRINTER (P2)
MINI-DIN 8
BRAIDED SHIELD
NC
NC
NC
Parallel
PIN
SIGNAL
DESCRIPTION
DIRECTION
1
/STROBE
Data Strobe
In
<
2
D1
Data Bit 1
In
<
3
D2
Data Bit 2
In
<
4
D3
Data Bit 3
In
<
5
D4
Data Bit 4
In
<
6
D5
Data Bit 5
In
<
7
D6
Data Bit 6
In
<
8
D7
Data Bit 7
In
<
9
D8
Data Bit 8
In
<
10
/ACK
Acknowledge
Out
>
11
BUSY
Busy
Out
>
12
PE
Paper Empty
Out
>
13
SELECT
Select Out
Out
>
14
NC
Not Used
15
NC
Not Used
16
GND
Signal Ground
17
CGND
Chassis Ground
18
NC
Not Used
19-30
GND
Signal Ground
31
/PRIME
Input Prime
In
<
32
/FAULT
Printer Fault
Out
>
33
GND
Signal Ground
34-36
NC
Not Used
