---
title: "Connection"
canonical: "https://docs.cuesystem.com/space/KUM/456491021/Connection"
format: markdown
---
> Macro (toc)

# Connector

6P6C modular jack connector RS-485 & power supply (CUEwire)

|  |  |  |
| --- | --- | --- |
| **Rear-side view** | **Pin** | **Description** |
| ![image](media://ce276d4f-3b31-455e-a9d7-971b8feacd6c) | 1 | +10 ÷ +30 V DC |
| 2 | +10 ÷ +30 V DC |
| 3 | A+ |
| 4 | B- |
| 5 | Ground |
| 6 | Ground |

# Connection examples

> Macro (excerpt)
> 
> ## Connection to controlCUE-basic
> 
> ![image](media://12932351-f3f1-4514-95cf-ff4088d82937)
> 
> ## Connection to controlCUE-one
> 
> ![image](media://e79b6369-15c2-4ec6-956f-31759e829708)
> 
> ## Connection to controlCUE-versatile
> 
> ![image](media://94bf37b8-f607-41ef-9108-39b9d54fe383)

# Multiple keypads

Multiple keypads or other CUEwire devices can be connected in parallel. In this case, the following conditions must be met:

- Each keypad (or another device) has a unique ADDRESS.

- The power supply should be properly selected to have sufficient power for all keypads and other devices powered by it, incl. the controller. Each keypadCUE-55 requires 2W. For other devices, the consumption is stated in the datasheets. controlCUE-basic allows a maximum of 5 keypads to be connected.

- The cable cross-section must be designed according to length and consumption in individual locations. For shorter cables and a limited number of devices, 4 conductors flat phone line cord or CATx cable can be used.

- A maximum of 29 devices can be connected to the one CUEwire (RS-485 + power) line.

- For wiring, it is recommended to use the bus topology. The maximum length of all cables should not exceed 900 m.

- As there may be voltage drops due to wire resistance on the cable, check whether the supply voltage measured by the individual devices is within their permitted range.