Alpha Technologies CXPS-HD 48-1.2-225 - Manual (Page 27)

0530082-J0 Rev B Page 19 of 31
5.7 Alarm connections
The alarm connections are shown on the customer connection drawing 0530082-08, located at the rear of this
manual.
For terminal block connections, the recommended wire sizes are 0.14 - 1.50 mm 2 (#26 to #16 AWG) for a
temperature range of 0 - 50°C (UL/CSA).
CAUTION: To reduce the risk of fire, use only 0.14 mm 2 (#26 AWG) or larger wire.
5.8 CAN serial ports
The CAN serial port(s) are located on the sides of each rectifier shelf. CAN serial ports are modular jacks with
offset latches that are used to communicate with the rectifiers and other CAN-enabled equipment (nodes) on the
same system.
The CAN serial ports on this system are daisy-chained from one node to the next (CAN OUT of one shelf to CAN
IN of the next). The system comes with the last shelf terminated and requires no further changes.
This system has a limit of nine 1.2 kW rectifiers installed. They do not have self-powered CAN bus nodes.
5.8.1 CAN termination
A CAN termination jumper is located beside each of the CAN serial port jacks on the rectifier shelves. See the
customer connection drawing and schematic that describes your system.
5.9 Network connection and remote communications via controller
The Cordex system can be set up, monitored and tested via an Ethernet 10/100 Base-T serial data connection.
The communication protocol supports a web interface. Pin-outs are shown in the customer connections drawing.
Some standard scenarios are described below:
5.9.1 Ethernet port for network connection (standard network cable)
The Ethernet port is designed to connect the controller to a user supplied network (TCP/IP supplied by the user)
via a front panel RJ-45 jack. Use a standard network cable for this connection.
5.9.2 Ethernet port for local connection (crossover cable)
The Ethernet port can be used for local access to for example a laptop computer. Use a standard network
crossover cable for this connection.
5.9.3 Controller modem port (Alpha cable)
The modem port on the front panel DB-9 connector (Figure 6) is designed for a controller connection to the Alpha
Technologies Cordex DC Modem #018-585-20. Use the Alpha-supplied cable for this connection.
CAUTION: Use only an Alpha-supplied modem and cable. Otherwise the equipment may be
damaged.