Cisco BWX360 Installation Manual page 16

Cisco BWX360 WiMAX Outdoor Modem / engbt / 253306943 / Installation.fm / 07.04.2010
Installing the Cisco BWX360 WiMAX Outdoor Modem
Preparing to connect to the indoor unit
To connect the indoor unit to the outdoor modem you perform the following steps:
1. Making a wall duct.
2. Provisionally laying the Ethernet cable.
3. Checking connection options in the house.
4. Connecting an Ethernet cable to the outdoor modem.
Local building codes must be followed when constructing a wall duct or
whatever method of wall penetration is used to pass the ethernet cable
into the building.
Making a wall duct
1. Note how close you are to the indoor unit.
2. Check what types of wall ducts are suitable (wall or window duct) and make one.
Provisionally laying the Ethernet cable
The cable must satisfy the following conditions:
For connecting the outdoor modem to the indoor unit, only use a round Ethernet
cable which is approved for outdoor use.
The outer diameter of the cable must correspond to the clamping area of the con-
nector plug. This permitted diameter range is 5 mm to 8.5 mm.
The cable must satisfy the requirements for cables used outdoors at the relevant
installation location.
The following influencing factors in particular must be taken into account:
– Ambient temperature
– Rain, water vapour or accumulation of water
– Presence of corrosive, contaminative or other chemical substances
– Mechanical stresses (e.g. compression stress, tensile loading, torsional load,
bending stress, alternating stress etc.)
– Animals (e.g. damage caused by rodents or insects)
– Plants (e.g. mildew)
– Radiation (e.g. UV radiation)
The maximum permitted cable length is 50 m.
To comply with regulations, it may be necessary to ground the cable shield.
To protect the connected IT installation from power surges, you may need to use a
surge protection box (see "Surge protection box" on page 24).
Proceede as follows:
1. Feed the non-assembled cable through the wall duct from inside to outside.
2. Lay the cable along the rough path it should take and, if possible, provisionally po-
sition fixings.
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