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Building Technologies 

RXT20.1 – Service terminal 

CA2N3851en_02 / 12.01.2007 

 

 

 

1/6

 

 

3

851

 

DESIGO™ RX 

Service terminal 

RXT20.1

 

 

 

 

Hand-held service terminal with built-in connecting cable 

 

Controller and room unit status display 

 

Remote operation of DESIGO RXB and RXC room controller service pins 

 

NOT SUITABLE FOR RXB VERSION 2.36 AND HIGHER 

 

Error message display 

 

Room temperature display, operating mode and temperature setpoint  
adjustment 

 

PPS2 interface to controller 

 

Socket for commissioning and service too 

The RXT20.1 service terminal is used for simple diagnostics of room controllers and 
room units, and for remote operation of the DESIGO RXB and RXC controller service 
pins. The built-in connecting cable of the service terminal is plugged directly into the 
roomcontroller to be interrogated, or into the room unit of the controller concerned. 

The service terminal displays the status of the controller and room unit, the “wink” func-
tion, error messages or additional information of the room unit.  

The service pin of the connected DESIGO RXB / RXC controller can be operated re-
motely with the function keys on the service terminal. This function is especially useful 
for addressing controllers installed in concealed locations. 

The service terminal also incorporates a RJ45 socket for the bus   

 

RXC: for RXT10 commissioning and service tool (L

ON

W

ORKS

® bus connection) 

 

RXB: for KNX / EIB bus connection (not for Version 2.36 and higher). 
 

When placing an order, please specify the quantity, product name and type code. 

Example: 
1 Service 

terminal 

  RXT20.1 

 

Essentially, the service terminal consists of the housing, the base plate and the cable for 
connection to the controller or room unit. The housing and the base plate are connected 
by a snap-fitting mechanism. 

Use 

Ordering 

Mechanical design 

Содержание DESIGO RXT20.1

Страница 1: ...gated or into the room unit of the controller concerned The service terminal displays the status of the controller and room unit the wink func tion error messages or additional information of the room unit The service pin of the connected DESIGO RXB RXC controller can be operated re motely with the function keys on the service terminal This function is especially useful for addressing controllers ...

Страница 2: ...ess the controllers when commis sioning the system RXC refer to the RXT10 user manual document CA2110338 RXB refer to the ETS manual This function of the service terminal is especially useful for ad dressing controllers in concealed locations where direct access to the service pin is difficult For this purpose the service terminal is connected to the room unit of the controller concerned Press thi...

Страница 3: ...ields There is no room unit connected or the controller is not ready for operation but the power supply is working controller in start up phase or no application loaded or controller not configured Faulty controller No display The power supply is not connected or the controller is faulty Display Description Wink command Controller type displayed for 64 s e g RXC30 1 r 30 or RXB21 1 r 21 Press the ...

Страница 4: ... perature sensor of the connected room unit Display Description Room temperature in C or F see Function key 2 The displayed room temperature is the temperature measured by the room unit there is no temperature sensor in the service terminal itself The service terminal must have the same PPS2 address as the room unit address 1 12 in order to display any of the information described above The QAX3 r...

Страница 5: ...able length Approx 15 cm Housing protection standard Protection standard to EN 60529 IP 30 Protection class Insulation protection class III Environmental conditions Operation IEC 721 Climatic conditions Class 3K5 Temperature 0 50 C Humidity 85 rh Mechanical conditions Class 3M1 Transport IEC 721 Climatic conditions Class 2K3 Temperature 25 70 C Humidity 95 rh Mechanical conditions Class 2M2 Indust...

Страница 6: ...ommunicates with the controller via the PPS2 interface Addition ally the bus is looped through the service terminal RXC this enables a PC for the RXT10 service tool to be connected to the tool socket of the service terminal For correct operation of the service terminal there must always be a room unit connected to the controller PPS2 communication is not possible without a room unit 1 2 80443 A Au...

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