Beijing Huahuan Electronics Co., Ltd.
H0FL-EthMux.SA1601/SA1602 User’s Manual V1.3
15
2.2.6
Power Switch and Power Socket
H0FL-EthMux.SA1601/SA1602 device supports -48V DC and ~220V AC
power supplies. The ~220V AC power supply adopts ~220V AC power socket
which complies with national standard and is connected by standard three-core
power cable. The -48V DC power is connected by 2x2 socket.
When connecting AC power cable, IEC standard power cable sent with
device will be used. The middle electrode of AC power socket is protection
ground electrode. When connecting DC power cable, DC power cable sent with
device will be used. Note that the red line of power cable is high potential, i.e.
power ground of -48V power supply, and that the black line is low potential, i.e.
-48V. When inserting the power plug, please note the direction of the locking
lever. The yellow-green line of DC power cable sent with device is ground line.
Make sure that the device has connected to the ground when installing it.
Note: For user’s safety, when ~220V AC power supply is used, the AC
power socket must have good protection ground connection! When DC
power supply is used, the DC power socket must have good protection
ground connection too!
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3.1
Electrical Installation
3.1.1
Power Connection
When -48V power supply is used, please correctly access positive and
negative electrodes of the power supply according to the labels on device power
socket; when ~220V AC power supply is used, please connect power cord which
complies with national standard to the AC power socket.
