Printed Circuit Board; Bus Connections; Zone Connections; Output Connections - Eaton i-on series Engineering Manual

Introduction

Printed Circuit Board

All of the control unit functions and connectors are provided by a single PCB. In the i-
on30EX/i-on30EXD, i-on30EXL/i-on30EXDL, i-on50EX/i-on50EXD and i-on160EX a
plastic PCB carrier holds the PCB within the case.

Bus Connections

30 50 160.
The i-on EX range of control units provide connectors for one four-wire bus cable. All
keypads, expanders and other equipment connect to the same bus. The cable can be run
as one single line, or as a three or four armed star branched at the control unit. See the
relevant Installation Guide for details of bus configuration, maximum bus length and
cabling type.

Zone Connections

The control unit itself provides the following connections for wired zones:
Control Unit
i-on40
i-onEX
These zones can be either all Closed Circuit (CC) or all Fully Supervised Loop (FSL). The
Installer can select the zone wiring type during initial commissioning, or at any time after.
The Installer can make the wiring type of expanders either CC or FSL, independent of the
wiring type of the zones on an i-onEX control unit. Note that there are no wired zones on
the i-on16 control unit.

Output Connections

Transistor Outputs
The control unit provides connectors for programmable transistor outputs which can be
used to control external equipment. The outputs are normally switched negative, from 12V
to 0V on activation. In this mode each output can sink up to 500mA from a dc source.
The installer can program these outputs to be switched positive (from 0V to 12V on
activation). In this mode the outputs can deliver up to 500mA to an external load.
See page 9 for the number of transistor outputs available on each control unit.
Relay Outputs
40 50 160.
The i-on40, i-on50EX and i-on160EX control unit also provide sets of connectors for relay
outputs, providing voltage free changeover contacts. Relay outputs are programmable by
the Installer.
See page 9 for the number of relay outputs available on each control unit.
Digital Communicator Outputs (Plug-by Outputs)
30 40 50 160.
A set of pins on the control unit PCB provide programmable outputs designed to control a
separate digital communicator.
By default each output is switched negative (switched from +12V to 0V when active).
When at 0V each communicator output can sink up to 100mA.
The installer can program these outputs to be switched positive when active (switched
from 0V to +12V). When at +12V each output can provide up to 50mA to an external load.
Page 2
CC Zones
8 x 4-wire 16 x 2-wire
5 x 4-wire 10 x 2-wire
i-on Range
FSL Zones
16
10