Specifications

Unistar Sx Series UPS
Form No. 003-2077
13
Communications port information for 2KVA, 3KVA, 5KVA and 7KVA units only:
These units contain two independent communications ports. Port one is for standard RS232
communications and labeled RS-232 Port. The second port is relay contact closure configured
for standard AS 400 ports. This port is labeled Control Port.
The pinout for the RS-232 port is depicted per the chart below. Note: when using the SNMP
option card, this port will be disconnected. Both the slot and the port may not be used at the
same time.
Communication settings: When using the RS232 port, the following settings should be used.
Baud Rate: 2400
Data Bits: 8
Stop Bits: None
Parity: 1
Pin 1: Not Used
Pin 2: /TXD Transmit Data
Pin 3: /RXD Receive Data and Commands
Pin 4: Not Used
Pin 5: Ground
Pin 6: Not Used
Pin 7: Not Used
Pin 8: Not Used
Pin 9: Not Used
The pinout for the Control port is depicted per the chart below.
Pin 1: UPS failure (fault)
Pin 2: Summary alarm (normally open, closes on event)
Pin 3: Common for pin 4
Pin 4: EPO or shutdown
Pin 5: Common ground for all relays.
Pin 6: Bypass active=make/ ups on=open
Pin 7: Battery low (normally open, closes on event)
Pin 8: UPS on=make/ bypass active=open
Pin 9: AC fail (normally open, closes on event)
Your UPS unit is shipped standard with SentryII monitoring software. This software may be used
for monitoring the UPS and power when loaded into your computer and connected via the supplied
software communication cable. This software is an detailed tool to help you manage your power
needs.
This software will also support a simpler style of controlled shutdown for the consumer that is not
interested in detail, but is still interested in a controlled unattended shutdown. The simple software
function requires the purchase and installation of a separate cable that is not provided with the
unit. Please contact your local vendor or Customer Service support department at 866-261-
1191 or 937-253-1191 should you need to purchase this software cable.