VNET Cat5 Cable and RJ45 Connections
PIN
PAIR
COLOUR (T568B)
Product
Link
Isolator
Link
1
2
white/
orange
data +
LINK A
2
2
orange
data –
LINK B
3
3
white/
green
No Connection
4
1
blue
power
out +
Ext
PSU +
5
1
white/
blue
power
out –
Ext
PSU –
6
3
green
No Connection
7
4
white/
brown
No Connection
8
4
brown
No Connection
If a screen cable is used, connect the screen to LINK S
As VNET products can only supply enough
power for a single ISOLATOR, systems requiring
more than one will need an external power
supply. In this case no connection should be
made between the VNET product and the
“Ext PSU” connections of ISOLATOR, these
connections should be used for the external
power supply.
External supplies should produce regulated
12V DC with at least 100mA available for each
ISOLATOR that is to be supplied. Klark Teknik
can supply or recommend a suitable
power supply.
If the VNET product is connected to the
ISOLATOR via its RJ45 connector then as
described above this will automatically
connect the power from the product’s LINK
port to the ISOLATOR. This is not a concern
because ISOLATOR contains circuitry to prevent
any conflict with an external power supply.
Configurations
For maximum flexibility ISOLATOR can
be used in a number of ways, below are
some examples:
1. Basic IN to OUT daisy-chaining with
additional branches as required.
ISO
IN
LINK
OUT
ISO
LINK
LINK
IN
OUT
ISO
ISO
IN
LINK
OUT
LINK
IN
LINK
OUT
LINK
LINK
Network Backbone
50
51
Quick Start Guide
QFLEX ISOLATOR