Intermec EasyCoder 301 Service Manual page 50

11.6 Communication
Ports, cont'd.
1
/. Short-circuit protected.
Intermec EasyCoder 301 – Service Manual Ed. 3
Parallel Port
Standard
IEEE 1284-I compliant (Centronics)
Interface Cable
Computer end: Depends on type of host computer.
IBM-PC: DB25 male connector.
Printer end: 36 pin female Centronics connector.
Pin Function
1 /Strobe
2-9 Data 0-7
10 Ack
11 Busy
12 Error
13 Select
14 Autofd
15 N/C
16 Signal ground
17 Chassis ground
18 Logic high
19-30 Signal ground
31 /Init
32 /Fault
33-35 N/C
36 /Selectin
Serial Port (RS232)
Protocol
9600 baud, No parity, 8 data bits, 1 stop bit (default).
To change the serial interface settings, use the SETUP command.
Interface Cable
Computer end: Depends on type of host computer.
IBM-XT:DB25 female connector
IBM-PS2: DB25 female connector
IBM-AT:DB9 female connector
Printer end: DB9 male connector.
Host
Signal DB-9 DB-9
1
RXD 2 2
TXD 3 3
DTR 4 4
GND 5 5
DSR 6 6
RTS 7 7
CTS 8 8
9
Chapter 11 CPU Board
Transmitter
Host
Host
Printer
Printer
Printer
Printer
Host
Printer
Host
Printer
Host
EasyCoder 301
Signal DB9 DB-25 Signal
1
+5V 150mA 1
TXD 2
RXD 3
– 4
GND 5
RDY 6
CTS 7
RTS 8
– 9
Host
3 RXD
2 TXD
20 DTR
7 GND
6 DSR
4 RTS
5 CTS
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