Pq-6 plus (ro) – Black Box PS035A User Manual
Page 12
PQ-6 PLUS (RO)
11
Installing a Centronics compatible printer
Connect the 6-pin connector from the power supply to the 6-pin connector on the back of the PQ-6 PLUS
(RO). Do not plug it into the AC outlet at this time.
Place the large jumper strip at P3, in the “A-B” position for parallel output.
The Centronics DB25 pinout is a standard DB25 to Centronics cable (Black Box part number EYN600) that
connects the PC to the printer. This cable’s pinning is shown in Table 3-3.
Table 3-3. Centronics to RS-232 Cable Wiring.
Pin No.
Signal
Source
Description
1
Strobe
PQ-6 PLUS (RO)
Data strobe pulse to printer.
2
Data 1
PQ-6 PLUS (RO)
3
Data 2
PQ-6 PLUS (RO)
8 bits of parallel data.
4
Data 3
PQ-6 PLUS (RO)
5
Data 4
PQ-6 PLUS (RO)
6
Data 5
PQ-6 PLUS (RO)
7
Data 6
PQ-6 PLUS (RO)
8
Data 7
PQ-6 PLUS (RO)
9
Data 8
PQ-6 PLUS (RO)
10
Acknlg
Printer
Indicates data received and ready to accept other
data.
11
Busy
Printer
Indicates printer cannot receive data.
12
Paper End
Printer
Indicates out of paper.
13
Select
Printer
Indicates printer is selected and ready to receive
data.
14
Auto Feed
PQ-6 PLUS (RO)
When this signal is low (Jumper J1), the paper is
automatically fed one line after printing. This
signal does not apply to all printers.
15
Fault
Printer
Indicates a printer fault condition such as out of
paper.
16
Input
PQ-6 PLUS (RO)
Clears the printer buffer and initializes the logic.
18, 19,
Ground
PQ-6 PLUS (RO)
Logic ground.
23, 25
Connect the Centronics printer cable to the DB25 connector at the back of the PQ-6 PLUS (RO). Locate
SW1 and set switch option 3 (position 2) to the “OFF” position.
3.1.2 P
OWER AND
G
ROUNDING OF
PQ-6 PLUS (RO)
Plug the power supply into a suitably grounded AC receptacle.