012-526-B2 Rev C
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5.4
CAN Serial Ports
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 right side of the shelf (as viewed from the
front).
Daisy-chain (CAN OUT of one shelf to CAN IN of another) as necessary and ensure that only the last shelf is
terminated. See drawing 030-900-08.
5.4.1
CAN Termination
A jumper (or switch depending on your configuration) allows setting of 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 termination
selection (inside the shelf) by removing the converter closest to the CAN ports.
5.5
Network Connection and Remote Communications via CXCI
The Cordex system can be set up, monitored and tested via Ethernet 10/100 Base-T serial data connection. The
communication protocol supports a web interface. Some standard scenarios are described below:
5.5.1
Modem Port
The Modem port is designed for CXCI connection to the Alpha Technologies’ Cordex DC Modem (#018-585-20)
via a front panel DB-9 connector.
Connect to the CXCI from the modem with the Alpha-supplied DB-9 cable.
CAUTION
Connect only Alpha-supplied modem and cable; otherwise, equipment damage can result.
5.5.2
Ethernet Port for Network Connection (Standard Network Cable)
The Ethernet port is designed for CXCI connection to a user supplied network (TCP/IP secured by user) via a
front panel RJ-45 jack.
Connect to the Cordex shelf using a standard network cable. Pinouts are shown in drawing 030-900-08.
5.5.3
Ethernet Port for Local Connection (Crossover Cable)
Local access (e.g., laptop computer) is also possible from the Ethernet port connection.
Connect using a standard network crossover cable.
