Tri Power X33 Mod HP Manual | Rev 1.20 | © Alpha Technologies GmbH 2013
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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
DC
max., Output impedance 2,2k
Ω
.
RS232 Voltage: 12V
DC
700mA max.
Open Collector Output (all): 30V
DC
, 100mA max.
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)
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.
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.
