Falcon SG1KRM-1TU Communications Interfaces, Location, Supported Protocols, RS-232 Interface

CHAPTER 5

COMMUNICATIONS INTERFACES

RS-232 INTERFACE

Location:

The RS-232 interface is standard on all SG series UPS models. The port is located on the UPS rear panel, via a DB-9 female connector.

Supported Protocols

UPSILON 2000 & SEC Smart Mon

BAUD RATE -------	2400bps
DATA LENGTH----	8 bits
STOP BIT-----------	1 bit
PARITY--------------	None

1

2	6	TX
		GND
3	7
		GEN
4	8	RX

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DB-9 Connector Pin Assignment

Pin #	Function explanation	I/O
9	RS 232 Rx	INPUT
6	RS 232 Tx	OUTPUT
7	Ground

CAUTION

When making a connection between a computer and the UPS RS-232 port, always use the green cable supplied with the UPS due to the propriatary pin- out of the RS-232 port.

CAUTION

There are communications options that WILL DISABLE the RS-232 port and render it inoperable. The options are as follows:

a.Internal SNMP/HTTP agent option installed into the UPS communications option slot.

The following options WILL NOT affect the operation of the RS-232 port:

a.Falcon Opto Coupler based signal interface board installed in the communications option slot.

b.Any Falcon relay based, dry contact signal interface board installed in to the communications option slot.

CAUTION

DB-9 Signals are not isolated and intended for connection to like RS-232 interfaces. DO NOT APPLY ANY OTHER VOLTAGES TO THESE PINS!

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