2.5 Extending Module Connection

2N® Analog Vario features an easy installation of extending button modules. Extending modules are connected using a single cable (included in every extender delivery) in a chain pattern (every additional unit is connected with the previous one). Each extending module has two connectors – an input connector (for connection towards the 2N® Analog Vario basic unit) and an output connector (for connection of another, more remote unit). Be sure to maintain the correct orientation of the units and avoid connector mismatch to ensure a proper function of the device!

Module Cable Interconnection

  • The cable is included in every extending module delivery. Both its ends are the same. Configuration is 1:1. Connectors cannot be shifted or inserted conversely because they are equipped with a so-called key.
  • The basic unit is always on the left. Extenders are chain-connected, i.e. each is linked with its neighbour.
  • The cable cannot be driven through the box interconnecting holes until the boxes have been connected (see subsection 2.3 Mounting – Mechanical Installation).

8-Button Extender Module Connection to Basic Unit

16-Button Extender Module Connection to Basic Unit

Caution

  • Extension modules must be interconnected by mounting jumper (tunnel), delivered together with each extension unit. This part is made from conductive plastic. If it is necessary to place extender unit at some distance, or if you lost the jumper, you must interconnect metallic covers by another way.

Maximum Count of Extenders

9135181E (1×8 buttons)

6

5

4

3

2

1

0

9135182E (2×8 buttons)

0

0

1

1

2

2

3

The table above shows how to combine modules with single (whole) and double buttons. 

Button Numbering

Button numbering – whole-button sets

Button numbering – double-button set

Caution

  • Installing the info panel name plate, order No. 9135311E, into any of the extending modules will not change the numbering system (the buttons on the info panel sides will remain functional).
  • Connecting the info panel module, order No. 9135310E, will result in omission of eight numbers.