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AWS-MTM-DP Guide

OPERATION

RS-232

The MTMDP display can be connected to a printer, computer or data collector via its

RS232 interface. Every time a reading is accepted into memory, a peak is cleared, or

data is transmitted via the print data menu(s), it is transmitted via the RS-232 port. To

download the readings, go to the DATA MENU.

SPECIAL NOTE: Model MTMDP-2S PTEST is not equipped with memory, so the operation

of the RS-232 will vary from the standard unit. The protocol, however, remains the same.

RS232 Transfer Protocol

Protocol Value

Cable 9 pin to mini-plug.

Baud 9600

Parity

Flow

None

Bits 8

S Bit 1

RS232 Datastream Format

mmmbsdddddbuuuuucl,

where:

m Memory Location

s Sign (space or -) c Carriage Return

d Data with Decimal Point l Line Feed

u Units b Blank

RS232 Cable Pinouts

Pin # Description Pin # Description

1 Unused 6 Unused

2 Transmit 7 Unused

3 Receive 8 Unused

4 Unused 9 Unused

5 Ground

1 2 3 4 5 6 7 8 9 10 11 12 13 14

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