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Interface specifications, Specifications and pin assignments – Epson 5000 User Manual

Page 119

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Interface Specifications

Your printer is equipped with a parallel interface.

Specifications and pin assignments

The built-in parallel interface has the following characteristics:

Data format:

B-bit parallel

Synchronization:

STROBE pulse

Handshake timing:

BUSY and ACKNLG signals

Signal level:

TTL compatible

Connector:

36-pin 57-30360 Amphenol connector or

equivalent

The table below provides the connector pin assignments and

describes their respective interface signals.

Signal

Pin

1

2
3

4

5

6

7

8

9

20
21
22
23
24
25

26
27

10

28

Return

Pin

19

Signal

Direction

Description

STROBE

DATA 1

IN

DATA 2

IN

DATA 3

IN

DATA 4

IN

DATA 5

IN

DATA 6

IN

DATA 7

IN

DATA 8

IN

ACKNLG

OUT

IN

STROBE pulse to read data. Pulse width
must be more than 0.5 microseconds at

the receiving terminal.

These signals represent Information of the

1st to 8th bits of parallel data respectively.

Each signal is at HIGH level when data is

logical 1 and LOW when it

is logical 0.

About an 11-microsecond pulse.

LOW indicates that data has been
received and that the printer is ready to

accept more data.

7-10

Technical Specifications