Minuteman UPS MCP 3000i, MCP 2000i, MCP 1000i user manual Communication Interface, Hardware

COMMUNICATION INTERFACE

(1) RS232
	NC-----------------	1	NC-----------------	6
	TXD---------------	2	NC-----------------	7
	RXD---------------	3	NC-----------------	8
	NC-----------------	4	NC-----------------	9
	Signal Ground---	5
Pin2:	UPS transmits serial data to computer.
Pin3:	UPS receives serial data from computer.
Pin5:	Signal ground.

The RS232 communication port provides the following features:

¨Monitoring charger status

¨Monitoring battery status and condition

¨Monitoring inverter status

¨Monitoring UPS status

¨Monitoring the utility status

¨Remote control shutdown of UPS

All information is provided in ASCII format.

HARDWARE:

BAUD RATE ————————— 2400 BPS DATA LENGTH ———————— 8 bits STOP BIT ——————————-1 bit PARITY ———————————-NONE

CABLING:

COMPUTER

RX (Pin2)

TX (Pin3)

GND (Pin5)

(1) DRY CONTACT

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®

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UPS

TX (Pin2)

RX (Pin3)

GND (Pin5)

NC-----------------	1	Low Battery--------	6
NC-----------------	2	NC-----------------	7
Shut Down-------	3	NC-----------------	8
AC Fail------------	4	NC-----------------	9
Signal Ground---	5

Pin4: Output signal transfers from HIGH to LOW during utility failures. The pin is normally HIGH.

Pin6: Output signal transfers from HIGH to LOW upon battery low. The pin is normally HIGH.

Pin9: The UPS will shut down when HIGH remains constant for at least 3.8 seconds.

Pin5: Signal ground.

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