Huawei S2700 Series Quick Start Manual page 24

S2700&S3700&S5700&S6700 Series Ethernet Switches
Quick Start Guide
Network Box-Mounting
l To protect the switch in a network box from lightning, route cables underground or in steel
l A network box cannot be deployed in an environment subject to sulfuration and water
l To protect network ports from lightning, use 8-line surge protectors (or Huawei certified 4-
l When installing a network surge protector, connect the IN ports to network devices and
l Connect the ground cables of the switch and surge protectors to the ground bar in the network
l If the network box is located outdoors and power cables are routed aerially over a long
l Protect the switch from dust. If possible, install air filters on the outlets of the network box.
Issue 12 (2013-07-25)
CAUTION
tubes. Do not route cables aerially.
intrusion. Otherwise, the switch in the network box may be eroded or short circuited by water.
line surge protectors).
connect the OUT ports to network ports of the switch.
box.
distance (more than 300 m) to the network table, it is recommended that your install a power
supply surge protector in the network box. The decoupled power cable must be at least 3 m
long. The maximum length of a ground cable cannot exceed 40 cm, and a length of smaller
than 15 cm is recommended.
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2 Device Installation
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