Siemens DESIGO PX Series - Pin Assignments; Power and LONWORKS Connections; Network and Serial Connections

Pin assignment
Plug-in screw terminal block
1 AC 24 V
2 Ground
3 Functional earth
Plug-in screw terminal block
4 CLA LonWorks Data A
5 CLB LonWorks Data B
RJ45 socket screened, standard connection in accordance with AT&T256
9222z12
8 7 6 5 4 3 2 1
1. Tx+
2. Tx –
3. Rx +
4. Not used
5. Not used
6. Rx –
7. Not used
8. Not used
9215Z01
8 7 6 5 4 3 2 1
1. Unoccupied
2. Unoccupied
3. G0, GND
4. G/Plus
5. Not used
6. Not used
7. COM1/TxD
8. COM1/RxD
9215Z01
8 7 6 5 4 3 2 1
1. L
ON
W
ORKS
Data A (CLA)
2. LONWORKS Data B (CLB)
3. G0 / GND
4. G / Plus
5. Not used
6. Not used
7. COM1 / TxD
8. COM1 / RxD
9280Z03
8 7 6 5 4 3 2 1
1. KNX data (CE+)
2. KNX data (CE–)
3. Not used
4. Not used
5. Not used
6. Not used
7. Not used
8. Not used
9281z04
1 2 3 4 5
6 7 8 9
1
DCD
Data carrier detect
6
DSR
Data set ready
2
RXD
Received data
7
RTS
Request to send
3
TXD
Transmit data
8
CTS
Clear to send
4
DTR
Data terminal ready
9
NC
Not connected
5
GND
Signal ground
Plug-in screw terminal block
6 + Tx
7 – Rx
8  Screen, connected to functional earth
Plug-in screw terminal block
9 (CE–) – KNX data cable
10 (CE+) + KNX data cable
1 2
3
5
4
CLB
CLA
6
7
8
9 10
CE
-
CE
+
Supply plug
LONWORKS plug
(PXC001.D)
Ethernet plug
(PXC001-E.D)
"HMI" plug
(PXC001-E.D)
Plug "HMI" and
"HMI/Tool"
(PXC001.D)
Tool plug (KNX)
RS232 plug serial
RS485 plug
KNX plug
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Siemens PXC001 System controllers CM1N9223en_01
Building Technologies 2014-04-04