HP 750c HP DesignJet 755CM Printer User's Guide - C3198-60051 - Page 195

Interface Specifications

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Reference Interface Specifications Interface Specifications Below are the parallel and serial interface specifications. For specifications of the HP JetDirect Network interface, see the JetDirect Print Server documentation supplied with this printer. Parallel (Bi-Tronics/Centronics) Interface The connector on the printer is 36-pin female. Most existing parallel cables support Bi-Tronics communication, but for use with this printer, the cable must meet the specification in this table. Pin Wire/Signal Name 1 Strobe 2 ... 9 D0 ... D7 (data lines) 10 Ack 11 Busy 12 PError 13 Select (SelectOut) 14 AutoFd 16 GND 19 ... 30 GND 31 Init 32 Fault 36 SelectIn Source computer both printer printer printer printer computer computer printer computer Serial (RS-232-C) Interface The connector on the printer is 25-pin female. The printer is configured as DTE (data terminal equipment). Data is transmitted on Pin 2 and received on Pin 3. Pin Wire/Signal Name 1 Protective Ground 2 Transmitted Data 3 Received Data 4 Request to Send 6 Data Set Ready 7 Signal Ground 20 Data Terminal Ready Source DTE DCE DTE DCE DTE REFERENCE 11 11-7

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11-7
Interface Specifications
Below are the parallel and serial interface specifications.
For specifications of the
HP JetDirect Network interface, see the JetDirect Print Server documentation
supplied with this printer.
Parallel
(Bi-Tronics/Centronics)
Interface
Pin
Wire/Signal Name
Source
Interface
The connector on the printer is
1
Strobe
computer
The connector on the printer is
36-pin female.
2 ... 9
D0 ... D7 (data lines)
both
Most existing parallel cables s pport
10
Ack
printer
Most existing parallel cables support
Bi-Tronics communication, but for
11
Busy
printer
use with this printer, the cable
must
meet the specification in this table
12
PError
printer
meet the specification in this table.
13
Select (SelectOut)
printer
14
AutoFd
computer
16
GND
19 ... 30
GND
31
Init
computer
32
Fault
printer
36
SelectIn
computer
Serial (RS-232-C) Interface
Pin
Wire/Signal Name
Source
The connector on the printer is 25 pin
1
Protective Ground
The connector on the printer is 25-pin
female.
2
Transmitted Data
DTE
The printer is configured as DTE (data
3
Received Data
DCE
The
rinter is configured as DTE (data
terminal equipment).
4
Request to Send
DTE
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