Delta RowCool HCH1CD0, User Manual, Page: 25 / 60

21
Chapter 3 Installation
3.9 Control box
y
Front
(Figure 3-20: Front of control box)
NETWORK COM
NET UPS
RESET
RS232 RS485 CAN
INPUT
OUT IN
OUTPUT
ALARM RACK REMOTE SENSOR
2
1
3 4 + - G
DISPLAY
1 2 3 4 5 6 7 8 9
No. Item Description
1
SNMP card slot
This unit is compatible with an SNMP card (optional) and can
be connected with a workstation so as to monitor and manage
the system based on the SNMP protocol. To install the SNMP
FDUG¿UVWUHPRYHWKHGXVWFRYHUIURPWKHFRQWUROER[XVHDQ
RJ45 cable (purchase separately) to connect the workstation
and the SNMP card. For SNMP card operation and setting,
refer to its user manual.
2
RS232
RS485
The RS232 or RS485 port allows you to connect a workstation
or power distribution device based on Modbus protocol for
remote use.
3
CAN-Link IN/OUT
It is reserved for series connection of several cooling units. It
adopts one-Input one-Output mode.
4
5
Input dry contacts
1RUPDOO\RSHQIRUFRQQHFWLQJWKH¿UHDODUPRUVPRNHGHWHFWRU
When an event occurs, the dry contact device is triggered to
form a short circuit. The system will record it in the event log
and shut down the cooling unit.
Port
4
¿UHDODUP
Port
5
VPRNHGHWHFWRU