Dascom 7010 Programmers Manual DMX Manuale Utente Scaricare il pdf (Pagina 138)

136

5.2 Parallel Interface

1 Specifications

Transmission system: 8 bits parallel (compatibility mode)

Synchronization: Strobe pulse

Handshake: ACKNLG and BUSY

Signal logic level: TTL

2 Usable interface connector

Printer side: 36-pin amphenol type

A standard parallel interface should be used. (The shortest distance should

be used for the interface cable.)

3 Connector signal arrangement

Pin No.

Signal name Input/Output Function

1 STROBE Input Strobe signal to read 8-bit data

2-9 DATA1-8 Input 8-bit parallel signal

10 ACKNLG Output 8-bit data request signal

11 BUSY Output

Signal to indicate printer BUSY

status

12 PERROR Output Signal to indicate paper out

13 SELECT Output

Signal to indicate whether

printer is on-line or off-line

AUTOFD

Input

Not used

15 NC - Not used

16 GND - Ground

17 FGND - Frame ground

18 P.L.H. Output Not used

19-30 GND - Ground

INIT

Input

Invalid (ignored)

32 FAULT Output Signal to indicate printer error

33-35 NC - Not used

SELECTIN

Input

Note used

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Dascom 7010 Programmers Manual DMX Manuale Utente Pagina 138