5
Subnetwork bus topology
You may connect the WTC Room Temperature
Sensor / Room Control Interface to the
controller’s Subnet Port with a standard Cat5e
RJ-45 Ethernet patch cable (T568A or T568B).
Connection cable
If you make your own patch cable, use Cat5e
cable and crimp the RJ-45 connectors at both
ends of the cable either as T568A or T568B.
Figure 5: RJ45 connector
Connector and dipswitch
The WTC Room Temperature Sensor /
Room Control Interfaces have the following
onsite configurable dipswitch.
Do not crimp one connector as T568A and
crimp the other connector as T568B on the
same cable.
T568A / T568B terminations for RJ45 connectors
Pass-Through
Subnetwork
RJ-45
Connectors
Set the Subnet
ID Address
ON
OFF
EOL Termination
(set to ON)
Pin
T568A
(both cable ends)
T568B
(both cable ends)
Pair
Colour
Pair
Colour
1
3
white/green
stripe
2
white/orange
stripe
2
3
green solid
2
orange solid
3
2
white/orange
stripe
3
white/green
stripe
4
1
blue solid
1
blue solid
5
1
white/blue
stripe
1
white/blue
stripe
6
2
orange solid
3
green solid
7
4
white/brown
stripe
4
white/brown
stripe
8
4
brown solid
4
brown solid
T568A and T568B Crimp Wire Sequence for
an RJ45 Connector
T568A
T568B
Key:
Stripe
Pair 3 Pair 1 Pair 2 Pair 4
Pair 2 Pair 1 Pair 3 Pair 4
Solid
English