Interface, 1. interface specifications, 2. interface timing – Star Micronics DP8340RC User Manual

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7-1.

Interface Specifications

This printer has a parallel interface to communicate with the computer.
The operating specifications of the parallel interface are as follows.
(1)

Data transfer rate

1000 to 6000 characters per second

(2)

Synchronization

Via externally supplied STROBE pulses

(3)

Handshaking

ACK and BUZY signals

(4)

Logic level

Compatible with TTL level

7-2.

Interface Timing

Figure 7-1. Interface Timing Diagram

Figure 7-2. Typical Interface Circuit

Signal Name

Circuit Example

DATA1-DATA8

(To Printer)

STROBE

(To Printer)

BUZY, ACK

(From Printer)

7. INTERFACE