rako WCM-D Instruction Manual page 4

Appendix:
WCMs shipped before 2022 have a different wiring diagram as shown below. This should
also be identifiable from the label attached to the WCM-D itself.
Please ensure that the correct wiring configuration is used, incorrect connection of the wired
network side of the WCM-D may cause the Rako wired network as a whole to become
offline.
"Old" WCM-D wiring (RTL1067):
As shown "Old" WCM-D with no label.
"New" WCM-D wiring (RTL1139):
As shown "New" WCM-D with label.
WCM-D Manual Version 2.0.0