Pyronix PCX 78 Installation Manual page 73

Over Voltage Protection Trigger Voltage: 18V
PCX power supplies are NOT designed for use with multiple batteries connected.
System load should not exceed the panel power supply output or the maximum load supportable by the battery for the
specified backup time.
The power ratings are based on battery shown in table – but ANY battery capable of supporting the system load for the
required time may be used without affecting these ratings.
Panel Power Supply Input
Table 16 - Battery Charging Specification
Float Voltage
Battery low voltage cut off
Recharge time
Table 17 - EN50131-6:2008 Rated Output
Electrical Capability
Example Battery Model
Yuasa NP7-12
Yuasa NP17-12
In accordance with EN50131-6:2008, the PCX standby times and effective output currents depend
on the Security Grade of the system and how 230V mains missing fault is signalled to the Alarm
Receiving Centre. Power supplies are rated in accordance with the requirements of EN50131-6,
which are related to the maximum battery size that can be accommodated in the housing and vary
according to the grade of the system in which they are installed.
Table 18 - PCB Current Consumption
Quiescent 80mA
Table 19 - User Code and Tag Guessing
4-digit codes
6-digit codes
Disallowed codes
All codes
According to EN50131-3:2009 Annex B
According to spec of manufacturer of RFID components used
PCX Installation Guide
Nominal
Mains Supply Voltage 230V AC at 50Hz
AC
Transformer Rating 18VA
PCX S
Transformer Rating 45VA
PCX L
13.8v DC Standby battery capacity current
10.5v PCX S
<24 Hours PCX L
EN50131-6 Rating. Maximum Load
Grade 2
0.5A
1.2A
10,000
100,000
None
1612
102017852 - V01
Range
-15% +10%
18V at 1.0A
18.5V at 2.5A
300mA (3A to 6A)
700mA (7A to 17A)
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