Huawei S2700 Series - Page 24

Network Box-Mounting
CAUTION
l To protect the switch in a network box from lightning, route cables underground or in steel
tubes. Do not route cables aerially.
l A network box cannot be deployed in an environment subject to sulfuration and water
intrusion. Otherwise, the switch in the network box may be eroded or short circuited by water.
l To protect network ports from lightning, use 8-line surge protectors (or Huawei certified 4-
line surge protectors).
l When installing a network surge protector, connect the IN ports to network devices and
connect the OUT ports to network ports of the switch.
l Connect the ground cables of the switch and surge protectors to the ground bar in the network
box.
l If the network box is located outdoors and power cables are routed aerially over a long
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.
l Protect the switch from dust. If possible, install air filters on the outlets of the network box.
S2700&S3700&S5700&S6700 Series Ethernet Switches
Quick Start Guide
2 Device Installation
Issue 12 (2013-07-25) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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