Logic Level Interface; Communication Slot Snmp; Input External Bypass Switch Auxilary Contact - Alpha Technologies Tri Power X33 Mod HP series Operating And Maintenance Manual

2. Description

2.4.3 Logic level interface

Logic level interface is available on the male DB15 connector; it is used to connect the UPS to a remote system for moni-
toring its operating status. The following indications are available with it:

Mains/battery run

Autonomy reserve

UPS failure

Overload

Bypass activ
The functions of the interace pins are:
Pin 1: GND;
Pin 2: Mains-/Battery run (Open Collector - activ high);
Pin 3: Autonomy reserve (Open Collector - activ high;
Pin 4: RS232 Voltage;
Pin 6: no connection
Pin 7: Overload (Open Collector - activ low)
Pin 12: Mains-/Battery run (Open Collector - activ low);
Pin 13: Bypass activ(Open Collector - activ low)
Pin 14: Autonomy reserve (Open Collector - activ low);
Pin 15: UPS failure (Open Collector - activ low).
Electrical chracteristic
Logic output: 12V
RS232 Voltage: 12V
Open Collector Output (all): 30V

2.4.4 Communication Slot SNMP

On the rear of UPS Tri Power X33 Mod HP an SNMP Slot is available for SNMP Adapter (Optional)

2.4.5 Input external bypass switch auxilary contact

This input is located on the AC terminal (A.R.B.C.). It is possible to connect a auxilary contact of an external bypass
switch. If the contcat is closed the UPS get the signal that the external bypass switch is closed. At the same time the UPS
activate the internal automatic bypass to protect the inverter.
Tri Power X33 Mod HP Manual | Rev 1.20 | © Alpha Technologies GmbH 2013
18
max., Output impedance 2,2kΩ.
DC
700mA max.
DC
, 100mA max.
DC
ATTENTION
The summary current through Pin 4 of the locic interface DB15 and the supply current for the network card should
not exceed maximum 700mA.