Table 3 Functions and Conditions of DIP Switch 2

Pin

 

 

 

Function

 

ON

OFF

Factory-set

No.

 

 

 

 

Condition

 

 

 

 

 

 

 

 

 

1

 

Selectors of

special

characters/symbols

 

-

 

-

ON

-

 

fSee Table 8)

 

 

 

-

 

 

ON

2

 

 

 

 

 

 

 

 

 

 

 

 

 

Fixed

internally

 

 

 

Not

 

3

 

AUTO FEED

 

Fixed

OFF

 

XT signal

1 Not fixed internally

 

fixed

 

 

 

 

 

 

4

 

Coding table

TRS80

TRS-8@

Standard

OFF

 

select

Standard

 

 

 

 

 

 

 

NOTE: When DIP Switch pin 2-4 is set to the “ON” position (for TRS-80 mode), all the other pins of the DIP switches 1 and 2 will not function irrespective of these ON/OFF positions.

Table 4 Special Characters/Symbols Available for Selection

(using DIP Switch Pins 2-1 and 2-2)

 

SW2-1

SW 2-2

Country

 

 

ON

 

 

ON

U.S.A.

 

 

ON

 

 

OFF

France

 

 

OFF

 

 

ON

Germany

 

I

OFF

 

 

OFF

England

I

 

 

 

 

 

7. Parallel Interface

The MX-80 F/T includes a parallel interface as the standard equipment, and this paragraph describes the parallel interface.

/

(1)Specifications

(a)Data transfer rate: 1000 CPS (max.)

(b)Synchronization: By externally supplied STROBE pulses.

(c)

Handshaking:

By ACKNLG or BUSY signals.

(d)

Logic level:

Input data and all interface control signals are

 

 

compatible with the TTL level.

(2) Connector

Plug: 57-30360 (AMPHENOL)

It is recommended that interface cables be kept as short as possible.

(3) Connector pin assignment and descriptions of signals.

Connector pin assignment and descriptions of respective interface signals are provided in Table 5.

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