11/16
Siemens
RXC20, RXC21, RXC22 – Room controllers
CA2N3834en_09
Building Technologies
2013-06-16
Connection terminals
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16
17 18
M
D1
GND
D2
Y1
G
Y2
G
CP
–
CP
+
CL
A
CL
B
B1
CL
A
CL
B
1
2
3
4
QAX...
T
M
25 26 27 28
Q1
3
Q1
4
AC 230 V
Y3
G
Y4
M
Q2
4
Q3
4
5(4) A
19 19 21
N
L
N
21
L
38
04
A
0
3
LonWorks®
Bus
Measured value input
B1
1
Measured value input with LG-Ni 1000 sensor
M
2
Measured value input ground
Signal inputs
D1 3 Signal
input
GND 4
Signal
ground
D2 5 Signal
input
Triac outputs
Y1
6
AC 24 V, 0.5 A switching output
G
7
AC 24 V actuator supply
Y2
8
AC 24 V, 0.5 A switching output
G
9
AC 24 V actuator supply
Y3
10
AC 24 V, 0.5 A switching output
G
11
AC 24 V actuator supply
Y4
12
AC 24 V, 0.5 A switching output
Room unit
CP– 13 PPS2
ground
CP+ 14 PPS2
data
CLA 15 Data
A
CLB 16 Data
B
L
ON
W
ORKS
® bus (plug-in)
CLA 17 Data
A
CLB 18 Data
B
Power supply
N 19 Neutral
conductor
L
21
Phase line AC 230 V +/- 10 %
Relay outputs
Q13
25
Feed for Q14, Q24 and Q34
Q14
26
N/O contact AC max. 250 V, 5 (4) A (stage 1)
Q24
27
N/O contact AC max. 250 V, 5 (4) A (stage 2)
Q34
28
N/O contact AC max. 250 V, 5 (4) A (stage 3)
Observe the technical data for the relay outputs: Max. AC 250 V, 5 (4) A
Local installation regulations must be observed.
Standard RJ45 tool socket for L
ON
W
ORKS
® devices.
1
32
06
Z
01
2 3 4 5 6 7 8
1 L
ON
W
ORKS
®, Data A (CLA)
2 L
ON
W
ORKS
®, Data B (CLB)
3 Unoccupied
4 Unoccupied
5 Unoccupied
6 unoccupied
7 PPS2
(CP+)
8 PPS2
(CP–)
RXC21
STOP
Note!
Tool socket