Liebert 700-3000 VA user manual Communications Interface Port, UPS Monitoring

Page 14

COMMUNICATIONS INTERFACE PORT

The UPStation GXT™ UPS contains a standard DB-9 female connector located on the rear of the UPS unit. Several signals are provided on this port and are assigned as follows:

PIN

 

ASSIGNMENT DESCRIPTION

 

 

 

1

 

Low Battery (open collector)

 

2

 

UPS TxD (typical RS-232 levels)

 

3

 

UPS RxD (typical RS-232 levels)

 

4

 

Remote Shutdown (5-12V); battery operation

 

5

 

Common

 

6

 

Remote Shutdown (short to pin 5); all modes of operation

 

7

 

Low Battery (open emitter)

 

8

 

Utility Fail (open emitter)

 

9

 

Utility Fail (open collector)

 

PIN ASSIGNMENTCOLLECTOR TO EMITER*

Open Collector (+)

330 Ohms

(-)

Open Emitter

*Maximum voltage and current on pins 1,7,8,9 is 80V DC; 10.0 mA.

UPS MONITORING

The UPStation GXT™ UPS has the capability of being monitored with stand alone computers, network workstations, network servers, or UNIX hosts via the DB-9 female connector located on the rear of the UPS.

This capability is used in applications requiring the UPS to provide status and power monitoring information to the computer system. For example, during a utility power failure, the information can be used by the computer’s operating system or application program to automatically save information in buffers, to close files, and shut down operations prior to battery capacity depletion.

Monitoring of the UPS via a computer system is easily made with a Liebert SiteNet® 1 shutdown kit (sold separately). Consult your local Liebert representative to determine the correct software kit for your application. The kit includes special purpose cable and shutdown software.

14

DISCONTINUED

PRODUCT

Image 14
Contents UPStation GXT Important Safety Instructions Introduction and System Description Major Components RECTIFIER/POWER Factor Correction PFC CircuitBattery Charger InverterDynamic Bypass BatteryDC to DC Converter General Installation MINI-TOWER/TOWER UPS InstallationsRACK-MOUNT Conversion Diagrams RACK-MOUNT UPS Conversion and InstallationBattery Cabinet Installation Diagram Optional Battery Cabinets InstallationFerrite Bead Installation Serial CommunicationsUpstation GXT Controls and Indicators On/Alarm Silence/Manual Battery Test ButtonNormal Mode Operation OperationBattery Mode Operation Battery Recharge ModePIN Assignmentcollector to Emiter Communications Interface PortUPS Monitoring UPS Intellislot Communications MaintenanceUPS Intelligent Communications Battery Replacement Procedures For 700/1000 VA MINI-TOWER ModelsFor 1000 to 3000 VA RACK/TOWER Models Tower Models only RACK/TOWER ModelsRack / Tower Battery Replacement Upstation GXT Battery RUN Times Internal Battery minutesFuse Replacement Procedures Audible Alarm ConditionsTroubleshooting Troubleshooting Guide Problem Cause SolutionSpecifications VA/WGXT1000RT-120 GXT1000RTE-120 Weight kg lbs Battery Cabinet Specifications Used w/ UPS ModelLimited Warranty 700-3000 VA 120