Tech Controllers ST-280 User Manual page 7

Scheme of Connections – Wireless Connection:
Using the ST-260 set you can combine the ST-280 room regulator with
the main controller in a wireless manner.
Connections should be carried out in accordance with the following
scheme:
The four-wired cable is connected to the regulator connector in accordance with colours of wires. This
cable is then connected to the RJ12 connector and should be plugged into the v2 module – the place
of connection is marked on the scheme as point 2 (there is an additional description on the module).
The controller on the boiler should be connected to the v1 module by means of a 4-wired cable, and
connected at the other end to the RJ12 connector - on the connection scheme this is marked as point
1.
* Optionally, a vertical-6-connector may be used instead.
7
Tech
V1 V2
ST-260 set