Falcon SG2K-2T-HW, SG3K-2T-HW, SG3K-1T-HW Communications Interfaces, Location, Supported Protocols

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.

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 to the communications option slot.

b.Any Falcon relay based, dry contact signal interface board installed into 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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