HP (Hewlett-Packard) 750C Plus Scanner User Manual


 
11-7
Company confidential. Murillo/Ravillo User’s Guide. Final Freeze Status: Frozen
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Interface Specifications
Below are the parallel and serial interface specifications.
Parallel (Bi-Tronics/Centronics)
Interface
Pin Wire/Signal Name Source
I
n
t
er
f
ace
The connector on the plotter is
1 Strobe computer
The
connector
on
the
plotter
is
36-pin female.
2 ... 9 D0 ... D7 (data lines) both
p
Most existing parallel cables s pport
10 Ack plotter
Most
existing
parallel
cables
s
u
pport
Bi-Tronics communication, but for
11 Busy plotter
use with this plotter, the cable
must
meet the specification in this table
12 PError plotter
meet
the
specification
in
this
table
.
13 Select (SelectOut) plotter
14 AutoFd computer
16 GND
19 ... 30 GND
31 Init computer
32 Fault plotter
36 SelectIn computer
Serial (RS-232-C) Interface
Pin Wire/Signal Name Source
The connector on the
p
lotter is 25
p
in
1 Protective Ground
The
connector
on
the
plotter
is
25
-
pin
female.
2 Transmitted Data DTE
The
p
lotter is configured as DTE (data
3 Received Data DCE
The
lotter
is
configured
as
DTE
(data
terminal equipment).
4 Request to Send DTE
q)
Data is transmitted on Pin 2 and
6 Data Set Ready DCE
Data
is
transmitted
on
Pin
2
and
received on Pin 3.
7 Signal Ground
20 Data Terminal Ready DTE
Reference
Interface Specifications
REFERENCE
11