T1000 Series UPS 1000-3000VA Installation and Operation Manual
– 94086-001
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13 COMPUTER AND ALARM CONNECTIONS
At the back of the UPS is an interface allowing direct communication with your computer
system, the location of which can be found in figure 2. There is a RS232 serial data
interface, one USB data interface and an emergency power off switch supplied. However,
the RS232 port cannot be used when the USB interface is in use.
In addition, there is an optional interface slot that allows you to install different
communications cards. It can be used parallel with either the RS232 or USB ports.
Currently there are two cards available for the optional interface slot. An multi-protocol
network card allows management and monitoring over a network or internet, and the
remote contact card allows voltage free relay contacts.
Connecting the UPS to a Computer
The communication device for the UPS and PC comes as a complete package with power
management software. Only the communication cable provided with UPS may be used to
connect to your computer, which is accomplished through the UPS RS232 port. Also
ensure that the operating system on your computer is supported. Instructions provided in
the power management software will help with this installation.
RS-232 Standard Interface port (not for remote/dry contact purpose)
The RS-232 interface uses a 9-pin female D-sub connector. This connector is used for
firmware updates. The interface port pins and their functions are identified in the following
table.
Pin #
Signal name
Direction (re UPS)
Functions
2
TxD
Output
TxD Output
3
RxD
Input
RxD / Inverter Off Input
5
Common
Common
6
Output
Ac Fail Output
8
Output
Low Battery Output
9
Output
12 VDC Power
Caution! Max rated values 12Vdc
USB port
Connecting the UPS to your computer is accomplished through the USB port on the back
of your computer. USB compliant hardware and operating system will be necessary
including installation of a UPS driver. The serial port cannot be used when using the USB
port. The USB cable is standard and can be bought separately.
