
Cordex® 24-400W 19” Integrated Shelf Installation and Operations Guide | 6 - Wiring and Connections
6.8. CAN Ports
Four Module shelf: one CAN OUT port located at the rear of the shelf.
Five Module shelf: one CAN IN and one CAN OUT port. Located at the back of the shelf.
Daisy-chain from node to node (CAN OUT of one node to CAN IN of another) as necessary and ensure
that only the last node is terminated.
Note:
This system can accommodate up to a maximum of 12 Cordex
®
small convection cooled
rectifiers (650W, 400W, 250W). The individual rectifiers do not provide their own CAN bus power and
must draw it from the controller.
6.9. Network Connection and Remote Communications via the
Controller
The Cordex
®
rectifier shelf systems can be set up, monitored and tested via modem or Ethernet 10/100
Base-T serial data connection. The communication protocol supports a web interface. Some standard
scenarios are described in the following sections.
Ethernet Port for Network Connection
The Ethernet port is designed for controller connection to a user supplied network (TCP/IP secured by
user) via a front panel RJ-45 jack.
Connect to the controller using a standard network cable. Pinouts are shown in the connection drawings.
Ethernet Port for Local Connection
Local access (e.g. laptop computer) is also possible from the Ethernet port connection using a standard
network cable.
Note:
Older CXCi models must use a crossover Ethernet cable for direct connection to a computer.
6.10. Signal Wiring Connections
For terminal block connections, the recommended wire sizes are #16 to #26 AWG (1.5 to 0.129mm
2
).
Control and sense wires shall be UL approved Style 1015 (for Canadian users, TEW type; for European
users, EN or IEC approved wire).
CAUTION:
To reduce the risk of fire, use only #26 AWG (0.129mm
2
) or thicker wire.
Table 3.
Wiring Connections for the CXCi Series of Controllers
Terminal
Description
Default Name
Signal Type
Range
1, 2, 3*
LVD Control (inter-
nal)
K1, Relay 1
NO/COM/NC
60VDC / 1A
4, 5, 6*
Alarm Output 2
K2, Relay 2
NO/COM/NC
60VDC / 1A
9400021-J0 Rev B
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