Pin-Out Diagrams For Hmi Connectors - Siemens PXC-16 Compact Technical Reference Manual

Siemens Industry, Inc.
Building Technologies

Pin-Out Diagrams for HMI Connectors

The HMI connector supports either a RJ-12 (6-pin) jack or a RJ-45 (8-pin) jack.
CAUTION
Do not use RJ-11 plugs without voids at pins 1 and 8.
RJ-11 plugs without voids will permanently damage the outer pins of the HMI port,
and the HMI port will no longer be able to power HMI terminals or connect to user
interfaces.
Replacement plugs with voids are available and may be installed using an RJ-45
(Ethernet) crimp tool.
NOTE:
RJ-11 HMI accessories can be connected to the middle six pins of the HMI RJ-45
port.
Figure 3: RJ-11 Plug with Voids at Pins 1 and 8.
Figure 4: P/N 540-143.
Standard RJ-11 (6-pin) Tool Socket for RS-232 Devices.
Technical Reference Manual
Restricted
Communication Connections
Pin Description
1 Not connected
2 Ground
3 24 Vdc
Hardware Features
Pin Description
4 Not connected
5 RxD
6 TxD
35 | 100
145-172
2018-09-25