MISCOM8220G Layer 3 Din-rail Industrial Ethernet Switch
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Table 2-3 Power input terminal pin definitions and descriptions
No.
Pin definition
illustrate
1
Power supply 1 input
V1+(AC-L)/positive (DC)
2
Power 1 input V1-(AC-N) /
negative (DC)
3
Protected land (connected to the
earth)
4
Power 2 input V2+ positive (DC)
5
Power 2 input V2- negative (DC)
Table 2-4 Switch power requirements table
Voltag
e
voltage
range
Operating
temperature
Storage
temperature
Humidity
24VDC
18~36VDC
-40°C~+70°C
-40°C~+85°C
5~95%
48VDC
36~72VDC
--40°C~+70°C
-40°C~+85°C
5~95%
220VA
C/DC
85~264VAC
47-63Hz or
110~370VD
C
--40°C~+70°C
-40°C~+85°C
5~95%
Attention:
The power specifications supported by this device are 24VDC, 48VDC,
220VAC/DC. Before connecting with the power supply, please confirm
whether the power supply and the power supply requirements identified by
the device match to avoid damaging the device.
Alarm relay
This series of switches power-down alarm relay, the terminal block uses a
3-digit 3.81mm pitch terminal. As shown in Figure 2-4. The relay is a normally
open and a normally closed relay. The middle one is a common terminal, the
left two terminals are normally open relays, and the two right sides are normally
closed relays. When the switch is working normally, the normally open relay is
energized and closed, and the normally closed relay is disconnected. When
the system is powered down, the normally open relay is powered off and the
normally closed relay is closed. The relay recommended switch load capacity
is 1A (24VDC).
