Installation Manual

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Safety Guidelines

This chapter outlines safety guidelines when installing the WipLL system.

Warning: The user and the installer should be aware that changes and

modifications not expressly approved by Airspan Networks could void the

user’s authority to operate the equipment.

Warning: Never install equipment that is damaged.

Warning: Only qualified personnel should be allowed to install, replace, and

service the WipLL equipment.

2.1. Electrical Safety Guidelines

Warning: Disconnect all power when installing.

2.1.1. Handling Electrostatic Devices

Electrostatic devices are those devices that may be damaged by the inadvertent

discharge of static electricity from a charged body. The risk of damage, due to

electrostatic discharge (ESD) to a device, may cause the device to fail suddenly, or it

may induce a partial defect within the device, which will cause subsequent

premature failure.

02030311-07 Airspan Networks Inc. 2-1

Summary of content (10 pages)

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2 Safety Guidelines This chapter outlines safety guidelines when installing the WipLL system. Warning: The user and the installer should be aware that changes and modifications not expressly approved by Airspan Networks could void the user’s authority to operate the equipment. Warning: Never install equipment that is damaged. Warning: Only qualified personnel should be allowed to install, replace, and service the WipLL equipment. 2.1.
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Safety Guidelines Hardware Installation Guide Static electricity can result from operators walking on floors, moving around on chairs, from the movement of operator's clothing or even casual brushing against racks, benches or walls. Airspan recommends the following guidelines to be adopted to minimize the risk of component failure due to electrostatic discharge to the device: WipLL devices are provided typically in see-through anti-static bags.
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Hardw are Installation Guide Safety Guidelines 2.1.3. Lightening Protection Warning: Never install the equipment during stormy weather and lightening. WipLL devices comply with the Surge Immunity standard: EN 61000-4-5. WipLL devices are protected from lightening surges as the outdoor devices (BSRs and SPRs) are encased in a plastic chassis. Therefore, if lightening strikes the device, an electrical circuit cannot be completed, and hence, no electrical surge can occur.
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Safety Guidelines Hardware Installation Guide 2.2. Installing WipLL Radios and Third-Party External Antennas Warning: For unlicensed bands, it is the responsibility of the person installing the WipLL system to ensure that when using the outdoor antenna kits in the United States (or where FCC rules apply), that only those antennas certified with the product are used. The use of any antenna other than those certified with the product is expressly forbidden in accordance with FCC rules CFR47 part 15.204.
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Hardw are Installation Guide Safety Guidelines Warning: For unlicensed bands, in accordance with FCC regulations, ensure that the external antennas provide an EIRP of less than or equal to 36 dBm to prevent interference with other radios operating in the unlicensed band. The EIRP is defined by the following formula: Max. Power Output + Antenna Gain - Cable Loss ≤ 36 dBm (EIRP) Thus, ensure that cable loss is sufficiently high to achieve EIRP of 36 dBm or less.
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Safety Guidelines Hardware Installation Guide 2.3. Preventing Radio Interference The digital portion of the transceiver has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
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Hardw are Installation Guide Safety Guidelines 2.4. Cabling Warning: The maximum cable length between the radio transmitters (i.e., BSR and SPR) and terminating equipment is 100 meters. Warning: Cables with exposed ends (i.e., not yet crimped) should be covered with protective polythene bags during external cable installation processes.
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Safety Guidelines Hardware Installation Guide Data cables of less than 20 pairs shall be mixed in bundles not exceeding 50 mm in diameter. Ensure cables are not trapped in cabinet doors, by slide-in equipment or support metalwork. Excessive stress on cable terminations caused by taught cables should be avoided. Connector strain relief, if not built into the connector used, shall be provided by means of a strategically located cable tie.
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Hardw are Installation Guide Safety Guidelines 2.4.2. Labeling The following labels are required to be fitted to WipLL equipment: Voltage Warning High Earth Leakage Current Signal Cable Designation 2.4.2.1. Voltage Warning Warning: Voltages over 30 Volts AC and 50 Volts DC are categorized as hazardous. Hazard warning labels should be fitted where required. Certain countries require equipment warning and instruction labels to appear in the local language.
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Safety Guidelines Hardware Installation Guide 2.4.2.2. High Earth Leakage Current If equipment earth leakage current exceeds 3.5 mA, a warning label as shown in Figure 2-1 must be fitted to the rear of the main power rack alongside the AC inlet terminal block. WARNING HIGH LEAKAGE CURRENT Earth connection essential Before connecting supply Figure 2-1: Warning label if earth leakage current exceeds 3.5 mA 2.4.2.3.