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Connection terminals
RXB22.1
Caution
Tool socket
12/16
Siemens
Building Technologies
1
2
3
4
5
6
7
T
AC 230V
AC 230V 10A
19 19 21 21
22 23 24
Measured value input
B1
1
Measured value input for LG-Ni 1000 sensors
M
2
Measured value input ground
Signal inputs
D1
4
Signal input
GND 5
Signal ground
D2
6
Signal input
Triac outputs
Y1
7
AC 24 V, 0.5 A switching output
G
8
AC 24 V actuator supply
Y2
9
AC 24 V, 0.5 A switching output
Room unit
CP–
13
PPS2 ground
CP+
14
PPS2 data
CE+
15
KNX / EIB data cable
CE–
16
KNX / EIB data cable
KNX / EIB bus (plug-in connection)
CE+
17
KNX / EIB data cable
CE–
18
KNX / EIB data cable
Power supply
N
19
Neutral conductor
R
21
Phase conductor AC 230 V +/- 10 %
Relay outputs
Q13
25
Common feed for Q14, Q24 and Q34
Q14
26
Normally-open contact, max. AC 250 V, 5 (4) A (Stage 1)
Q24
27
Normally-open contact, max. AC 250 V, 5 (4) A (Stage 2)
Q34
28
Normally-open contact, max. AC 250 V, 5 (4) A (Stage 3)
Q43
23
Lead wire for Q44
Q44
21
N/O contact AC max. 250 V, 10 A...(electric heating coil)
Observe the technical data for the relay outputs: Max. AC 250 V, 5 (4) A and 10
A, respectively
Local installation regulations must be observed.
Proprietary RJ45-type tool socket
1 KNX / EIB data cable (CE+)
1 2 3 4 5 6 7 8
2 KNX / EIB data cable (CE–)
3 Not used
4 Not used
RXB21.1, RXB22.1 Room controllers
8
9
10 11 12
13 14 15 16
2
1
4
QAX...
M
AC 230V 5(4)A
25 26 27 28
17 18
EIB / KNX
3
5 +12VDC
6 RxD
7 PPS2 (CP+) / TxD
8 PPS2 (CP–)
CM2N3873en_06
02 Apr 2010
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