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A standard 36-pin parallel connector is available at the rear of the printer for connection to the data source. Under normal circumstances, data sent from the printer to the host computer in response to a “Printer Status Request” command is sent through the RS-232 serial port. However, if the host computer has a properly configured IEEE-1284 parallel port that is recognized by the printer, status information is returned through the parallel port. Port selection for status information is determined each time the printer is turned on.

Parallel Port Interconnections

Table 4 shows the pin configuration and function of a standard computer-to-printer parallel cable.

 

Table 4

 

 

36-pin Connector

Description

1

nStrobe/HostClk

 

 

2-9

Data Bits 1-8

 

 

10

nACK/PtrClk

 

 

11

Busy/PtrBusy

 

 

12

PError/ACKDataReq

 

 

13

Select/Xflag

 

 

14

nAutoFd/HostBusy

 

 

15

Not used

 

 

16 & 17

Ground

 

 

18

+5V @ 750mA

 

 

19-30

Ground

 

 

31

ninit

 

 

32

nFault/NDataAvail

 

 

33 & 34

Not used

 

 

35

+5V through a 1.8K Resistor

 

 

36

NSelectin/1284 active

 

 

102

Bradyprinter 200M-e and 200M-e 300 User’s Guide