2N 01368-001, Installation Manual, Page: 80 / 107

2N Access Unit Installation Manual
80 / 107
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Module Minimum consumption [W] Maximum consumption [W]
13.56 MHz RFID card reader
(583v2) 0.42 0.89
I/O module (577v2) 0.35 0.66
Tamper switch 0 0
Wiegand module (581v1) x x
Total 2.07 7.55
It is obvious from the specimen configuration that all the modules have sufficient outputs when
an external power supply is used. When a PoE supply is used, the power output is insufficient for
all the modules, which results in automatic decrease in backlight level, active output current
supply, volume and LED intensity.
Some modules need a specific power output for their specific activities: the I/O module, e.g.,
requires 0.13 W for relay closing (not included in the minimum consumption).
5 Buttons Module
The Buttons module ( Part No. 9155035 ) is used for dialling selected Automation functions.
The module contains two bus connectors for 2N Access Unit .
These two connectors are fully interchangeable and can be used either as inputs from the
basic unit or outputs to other modules.
If this module is the last one on the bus, one of the connectors remains unconnected.
The module package includes a 220 mm long interconnecting cable.
Keypad Module
The Keypad module ( Part No. 9155031 ) is used for a numeric access to the system.
The module contains two bus connectors for 2N Access Unit .
These two connectors are fully interchangeable and can be used either as inputs from the
basic unit or outputs to other modules.
If this module is the last one on the bus, one of the connectors remains unconnected.
The module package includes a 220 mm long interconnecting cable.
Touch Keypad
The Touch keypad ( Part No. 9155047 ) provides a numerical input in the system.
The module contains two 2N Access Unit bus connectors.
These two connectors are fully interchangeable and can be used both as inputs from the
main unit and outputs to other modules.