LEGRAND KEOR SPE TOWER Manual De Instalación Y Del Usuario página 55

4.10
Communication ports
The UPS has a standard RS232 serial port, a USB (type B) port and one SNMP slot.
It can be connected to most NAS devices and computers. By connecting the UPS to a computer,
it is possible to perform functions like:
- displaying all operating and diagnostic data in case of problems.
- setting special functions like the control of the load banks.
- performing automatic shutdown of all computers powered by the UPS (if connected to the
TCP/IP network).
Visit the website ups.legrand.com for more information on network interfaces and software.
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4.11 EPO and Dry Contacts
The rear part of the UPS includes an Emergency Power Off (EPO) contact that can be used to
connect an emergency pushbutton to turn off the UPS.
The default setting of the EPO contact is nC (normally closed). If you want to change the default
status to nO (normally open), follow par. 4.6 to enter setup mode.
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There are also other two dry contacts which indicate the following status:
- Pin 1-2: battery low. When the UPS battery is low, the contact changes status. The default
setting is nO (normally open).
- Pin 3-4: battery mode. When the UPS turns to stored energy mode, the contact changes status.
The default setting is nO (normally open).
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RS232 CONNECTOR:
PIN NO. PIN DEFINE
1 NA
2 RX
3 TX
4 NA
5 GND
6 NA
7 NA
8 NA
9 NA
EPO CONNECTOR:
PIN NO. PIN DEFINE
1 +VCC_SELV
2 GND
DRY CONNECTOR:
PIN NO. PIN DEFINE
1 DRY_LOW
2 GND
3 DRY_ON
4 GND
KEOR SPE TOWER
4 3 USB CONNECTOR:
PIN NO.
1 2
PIN DEFINE
1 SUB_VDD
2 IM
3 IP
4 GND_SELV
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