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All rights reserved. Reproduction as well as electronic duplication of this user guide, complete or in part, requires the written consent of 
ESERA-Automation or E-Service GmbH. Errors and technical modification subject to change. 



ESERA-Automation, E-Service GmbH 2019 

www.esera.de 

11302-U V1.5 R1.2 Manual 

Page 2 of 6

 

 
 

   

Technical data 

1-Wire Bus 

Interface: 

 

1-Wire Bus with DS2480 bus master component (5 V, load und data) 

Protection circuits: 

ESD- and reverse polarity protection 

Connection: 

 Screw terminals (up to 2,5qmm cross wire section) 

Output voltage: 

5 V (+/-10 %), maximum 500 mA 

Isolation: 

 Galvanic separation between data input, voltage supply 
and 1-Wire interface 

Isolation: 

 

minimally 500VDC between PC interface and 1-Wire bus 

Voltage supply:   

9-30VDC 

Power consumption:  

maximally 500mA

 

 
USB Interface 

Connection: 

 

USB type B connection jack 

Interface: 

 

USB 1.1, FTDI 232RL Chip 

 

Ambient Conditions 

Temperature, operation: 0 °C up to +60 °C 
Air humidity: 

 

10 

– 92 % (non-condensing) 

Dimensions: 

 

35 x 90 x 70mm (WxHxD) 

Protection class:  

III 

Protection type: 

IP20 

Insulation:  

500 VAC output to 1-Wire Bus, 250 VAC output to output 

 

Conformity 

EN 50090-2-2 
EN 61000-4-2, ESD 
EN 61000-4-3, HF 
EN 61000-4-4, Burst 
EN 61000-4-5, Surge 
EN 61000-6-1, Fault-free operation 
EN 61000-6-3, Stray radiations 
RoHS

 

 

Connection plan 

Connection 1-Wire Bus 

(module topside) 
7+8     = 1-Wire load 
9+10   = 1-Wire data 
11+12 = + 5 V output 

 
Voltage supply of 9 

– 30 VDC 

 

(module bottom side) 
1 = Voltage Supply negative 
2 = Voltage Supply positive 
3-6 = not assigned 
 
 

 

Note:

 Further information and tips for the 1-Wire bus system can be found in our webshop at 

https://www.esera.de/1-wire-grundlagen/

 or in our eBook at (

https://www.esera.de/service-

support/dokumentation/352/grundlagen-1-wire-bus-ebook?number=11901

) 

 

 

Summary of Contents for 11302-U

Page 1: ...y be enhanced Issues caused by unreliable USB voltage supplies will be avoided The use of more expensive USB hubs is no longer necessary The 1 Wire output of the bus coupler is isolated among the USB data supply and the voltage supply Thus ground loops or EMC emissions and grounding issues from a computer to the 1 Wire network are efficiently prevented The isolation significantly reduces stray rad...

Page 2: ...ximally 500mA USB Interface Connection USB type B connection jack Interface USB 1 1 FTDI 232RL Chip 4 Ambient Conditions Temperature operation 0 C up to 60 C Air humidity 10 92 non condensing Dimensions 35 x 90 x 70mm WxHxD Protection class III Protection type IP20 Insulation 500 VAC output to 1 Wire Bus 250 VAC output to output 5 Conformity EN 50090 2 2 EN 61000 4 2 ESD EN 61000 4 3 HF EN 61000 4...

Page 3: ...written consent of ESERA Automation or E Service GmbH Errors and technical modification subject to change ESERA Automation E Service GmbH 2019 www esera de 11302 U V1 5 R1 2 Manual Page 3 of 6 Art No 11302 U 7 Connection Example Combination of 1 Wire Bus Coupler 1 Wire Hub III top hat rail case sensor and bus terminator ...

Page 4: ...be activated 10 USB Connection cable Please note that the cable length is limited to 5 m in maximum for the USB data cable among the 1 Wire Bus Coupler and the PC interface To bridge USB cable sections of 30 to 50 meters USB long distance extension cables are offered in our webshop These long distance extension cables use a CAT5 CAT6 or CAT7 network cable for data transfer This network cable canno...

Page 5: ...installation they must not have power applied Tools may only be used on devices components or assemblies when it is certain that the devices are disconnected from the power supply and electrical charges stored in the components inside the device have been discharged Live cables or wires to which the device or an assembly is connected must always be tested for insulation faults or breaks If an erro...

Page 6: ...original purchase price refunded or a reduction of the purchase price ESERA Automation accepts liability neither for the constant and uninterrupted availability of the ESERA Automation or for technical or electronic errors in the online offer We develop our products further and we reserve the right to make changes and improvements to any of the products described in this documentation without prio...

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