Eaton Electrical 9120 manual Communication Port, Communication Slot, SNMP/Web Adapter, USB Port

13

5.4Communication Port

To establish communication between the UPS and a computer, connect your computer to the UPS communication port using the supplied communication cable.

When the communication cable is installed, power management software can exchange data with the UPS. The software polls the UPS for detailed information on the status of the power environ- ment. If a power emergency occurs, the software initiates the saving of all data and an orderly shutdown of the equipment.

The pin functions are described in Table 1.

Table 2. Communication Port Pin Assignment

Pin Number	Signal Name	Function	Direction from the
			Multi-Port Module
1	Low Batt	Low Battery relay contact	Out
2	RxD	Transmit to external device	Out
3	TxD	Receive from external device	In
	RS-232 low	Conditional Power Off: In absence	In
	level signal	of AC power, output is turned off
	for>0.4	until normal AC power returns
	seconds
4	-	No Connection	-
5	GND	Signal Ground	-
6	-	No Connection	-
7	-	No Connection	-
8	AC Fail	AC Fail relay contact	Out
9	Power Source	+V (8 to 24 volts DC power)	Out

USB Port

The UPS is also equipped with a USB communication port. Either the DB-9 communication port or the USB port may be used to monitor the UPS; however, they cannot operate simultaneously. Refer to the power management software instructions for using the USB port.

5.5Communication Slot

The Powerware 9120 UPS has a communication slot that allows quick installation of the optional SNMP/Web adapter or future communication interfaces. These interface adapters extend the capabilities of the Powerware 9120 system to provide compatibility with network and remote moni- toring/management systems.

5.6SNMP/Web Adapter

This adapter provides the Powerware 9120 system with its own ethernet network connection, allowing it to be remotely monitored and controlled via industry-standard internet browsers. The HTML interface enables UPS monitoring and management from anywhere on the internet or with- in your intranet. In addition, third-party Simple Network Management Protocol (SNMP) software packages may also be used to communicate remotely with the Powerware 9120 system.