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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
The pinout for the
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 a 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 Minuteman Technical support department at
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