CHAPTER 5
CHAPTER 5
COMMUNICATIONS INTERFACES
RS-232 INTERFACE
15
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
DB-9 Connector Pin Assignment
When making a connection between a computer and the UPS RS-232 port,
always use the green cable supplied with the UPS.
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.
DB-9 Signals are not isolated and intended for connection to like RS-232
interfaces. DO NOT APPLY ANY OTHER VOLTAGES TO THESE PINS!
CAUTION
CAUTION
CAUTION
GND
