Checkline MTM - Manual (Page 6)

AWS-MTM-DP Guide
OPERATION 5
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
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