Innotech Genesis V4 System - Manual (Page 92)

Installation Instructions for Innotech Genesis Systems
Edition 011100
A-11
A-4.2.6. GENII RPTR Repeater Module. The Repeater Module (Figure A-11)
can be used with both the Genesis I and Genesis II Digital Controllers. The repeater’s
function is to rebuild each data byte before re-transmitting it.
There are two earth connections on the Repeater Module. The electrical earth must be
connected at the E Terminal as it provides a creepage barrier for the mains voltage
connection at the L and N Terminals. The earth (E) associated with the 240Vac supply also
earths the data rebuilding circuitry, which is connected with Port 1. Port 1 should always be
connected to the local devices (the devices that share the same supply and electrical earth).
The other EARTH is for the over-voltage-limiting device connected to Port 2. This device
limits the Port 1 screen voltage above earth to 36 Volts.
Figure A-11. GENII RPTR Repeater Module Connections.
Connect to a solid earth
with shortest wire possible
Comms. Cable(s) from remote
equipment must be connected
to Terminal Group 2. Screen is
always connected.
Comms. Cable(s) from local
equipment must be connected
to Terminal Group 1. Screen
can be connected to Port 1
of Repeater if not connected
to earth at another device.
1
2
Isolated
From
Internal
Circuit
Connected To
Internal Circuit
EART
H
L
N
E
Connect to a solid earth
with shortest wire possible
If Comms. Cable(s) from local
equipment is earthed at another
device, cable screen must not
be connected to Port 1 of
the Repeater.
If looping Comms. Cable
through isolated Port 2 of
Repeater, always connect
both screens to the middle
terminal.
2
1
Isolated
From
Internal
Circuit
Connected To
Internal Circuit
EA
R
T
H
L
N
E