User manual

Parallel Interface
The parallel interface is an 8-bits per byte TTL-compatible interface. It uses
7- or 8-bit data transfer code without parity check. You can select the parallel
interface via the Printer Setup procedure (see I/F function in Chapter 3).
◆
Drive Capability
Up to 15 feet (5 m) on AWG26 min. wire size of twisted conductors on
TTL receiver.
◆
Printer Connector Type
AMPHENOL 57-40360-12-D56 or equivalent
◆
Cable Connector
AMPHENOL 57-30360-12 or equivalent Interface
◆
Signals
The interface pin assignment is described in the following table:
Signal Name Pin Number Source Description
Signal
Wire
Return
Wire
STROBE
1 19 HOST
Clock signal which
controls data
transmission.
DATA BIT 1
DATA BIT 2
DATA BIT 3
DATABIT 4
DATA BIT 5
DATA BIT 6
DATA BIT 7
DATA BIT 8
2
3
4
5
6
7
8
9
20
21
22
23
24
25
26
27
HOST
Represents
transmitted data;
logical "1" is
represented by HIGH
level signal. DATA
BIT 1 (pin 2) is the
least significant bit.
ACK
10 28 PRT
Active LOW level
signal. Indicates that
data has been
received and stored in
the buffer.
BUSY
11 29 PRT
An active HIGH level
signal which
indicates that the
printer cannot accept
data.
Appendix C
C.2
A78401745-001