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Siemens PXC....D PXC...-E.D + PXA40-… – Automation stations modular series CM1N9222en_03
Building Technologies 16 Mar 2010
Pin assignment for RJ45 plug
Pin description Pin description
9222z12
8 7 6 5 4 3 2 1
1. L
ONWORKS Data A (CLA)
2. L
ONWORKS Data B (CLB)
3. G0 / GND
4. G / Plus
5. Unused
6. Unused
7. Unused
8. Unused
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. Unused
5. Unused
6. Rx –
7. Unused
8. Unused
9222z12
8 7 6 5 4 3 2 1
1. L
ONWORKS Data A (CLA)
2. L
ONWORKS Data B (CLB)
3. GND
4. +24 V max. 300 mA
(PXM20)
5. Unused
6. Unused
7. COM1 / TxD
8. COM1 / RxD
9222z12
8 7 6 5 4 3 2 1
1. unused
2. unused
3. G0 / GND
4. G / Plus
5. Unused
6. *)
7. COM1/TxD
8. COM1/RxD
*) 6 Unused (PXC….D)
Connected to pin 8 (PXC…-E.D)
Connection diagrams
See Planning and Installation Guide TX-I/O, CM110562.
Plug (C)
"HMI" (L
ONWORKS)
Plug (D)
Ethernet
Plug (E)
"HMI / Tool"
(L
ONWORKS and serial)
Plug (G)
"HMI" (serial)
Connecting TX-I/O
modules and field
devices
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