Alpha Technologies CXPS 48-2T 48V Pos Gnd - Manual (Page 36)

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5.6.3 Relay Outputs
Terminals provide contacts for extending various alarm or control signals. Each relay output can be wired for NO
or NC operation during an alarm or control condition. See Figure 15.
Figure 15–Showing relay connections in the de-energized state
Relays can be programmed to energize or de-energize during an alarm condition (see CXC Software manual).
When the CXC reset button is pressed or power is lost, all relays de-energize.
5.6.3.1 System Fail Relay
System Fail output relay (K0) is fail-safe and will de-energize during an alarm condition.
5.6.3.2 LVD Control
The LVD Control functions can be hardwired directly from the assigned relay output to the LVD
contactor panel. See Controls Menu Defaults in the CXC Software manual.
5.6.4 CAN Port
The CAN port or “CAN bus” allows communications between the CXC and Cordex series rectifiers or other CXC
system peripherals. These are located on the left side of the rectifier shelf (as viewed from the front).
5.7 Network Connection and Remote Communications via CXC
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:
5.7.1 Ethernet Port for Network Connection (Standard Network Cable)
The Ethernet port is designed for CXC 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.
5.7.2 Ethernet Port for Local Connection (Crossover Cable)
Local access (e.g. laptop computer) is also possible from the Ethernet port connection using a standard network
crossover cable.