Monster HTUPS 3700 - Manual (Page 38)

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A . General :
This document specifies the RS-232C communication protocol of the HTUPS3700 .
Computer will control information exchange by a query followed by < cr > .
UPS will respond with information followed by a < cr > or action .
B . Hardware:
Data format
BAUD RATE : 2400 bps
DATA LENGTH : 8 bits
STOP BIT : 1 bit
PARITY : NONE
Pin definition:
COMPUTER UPS
===================================
RX <---------- TX (pin 2)
TX ----------> RX (pin 3)
GND <--------> GND (pin 5)
RS-232 COMMUnICaTIOnS PROTOCOl anD COMManD SeT
COn’T