Alpha Technologies Cordex HP CXRF 48-12kW - Manual (Page 25)

23 9400000-J0 Rev C
7.5 CAN Serial Ports (Rectifier Shelf)
Two CAN Serial ports (modular jacks with offset latches), are provided for communications with Alpha’ Cordex
rectifiers and other CAN-enabled equipment. These are located on the left side of the rectifier shelf as viewed
from the front.
Daisy-chain from shelf to shelf (CAN OUT of one shelf to CAN IN of another) and ensure that only the last shelf is
terminated.
7.5.1 CAN Termination
A jumper, or switch depending on your configuration, allows setting the CAN OUT to be open to the next shelf in
the system or terminated. Termination must be enabled in final shelf on the CAN bus only. Access the termination
selection inside the shelf by removing the left most rectifier #1 (MDL 1).
Figure 5 — CAN termination selection and serial ports