Data Sheet for Product

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1

2

3

4

5

6

7

Connection diagrams

12345

6319G01

6

(GND)

(DC 12 V)

1 Serial port, RS485+

2 Serial port, RS-485−

3 Working voltage DC 0 V

4 Working voltage DC 12 V

5,6 Connection for 10 kΩ NTC

temperature sensor

Connection

terminals

1 2345

S2

X12

6319A01

N1

6

1

234

B1

S2 Room operator unit, type HTC3.1/A

B1 Temperature sensor, 10

kΩ, NTC

(e.g. HSE1.1, HSE1.2)

N1 HRC3.. room controller

Wiring diagram

HTC3.1/A

1 25

S2

X12

6319A02

N1

6

1

234

34

S2 Room operator unit, type HTC3.1S/A

N1 HRC3.. room controller

Wiring diagram

HTC3.1S/A

STOP

Caution

Note the cross-over between pins 3 and 4.

7/8

Siemens HTC3.1/A, HTC3.1S/A – Room operator units CM2N6319en

Building Technologies 31.07.2008