0 interface pinouts, Serial pinouts, Typical rs232 pin connections – Boca Research FSP 44 User Manual
Page 23: Parallel pinouts
6.0 Interface Pinouts
Serial Pinouts
RS232 (Standard)
Pin
Function
2Printer Transmit
3Printer Receive
7Ground
5,20 DTR (Printer Ready)
4,22 RTS (+5Vdc)
Typical RS232 Pin Connections
* Optional Connection
19
(Standard)
25 PIN PC
BOCA CPU
23 RXD
32 TXD
77 GND
20
6 DSR
20
5 CTS*
20
8 CD*
(Standard)
9 PIN PC
BOCA CPU
22 RXD
33 TXD
75 GND
20
6 DSR
20
1 CD*
20
8 CTS*
Parallel Pinouts
Pin
Function
1
Strobe (negative)
2-9 DATA (DBØ - DB7)
10 ACK (negative)
11 BUSY
12 PAPER OUT
15 ERROR (negative)
18 Ground