Motorola solutions MCC 7100 IP, Руководство по установке и эксплуатации

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Part Number Description
30009477001 USB 2.0 Cable for USB Audio Interface Module
(1 piece)
USB Audio Interface Module Bonding and Grounding Requirements
General Bonding and Grounding Requirements
Mount the USB Audio Interface Module (USB AIM) device under the writing surface or on the top of the
writing surface using the mounting brackets shipped with the device.
For the information about grounding and bonding equipment in dispatch centers, see the following
sections in the
Standards and Guidelines for Communication Sites manual:
• “Bonding to Equipment and Ancillary Support Apparatus”
• “Grounding (Earthing) for Dispatch Centers and Network Operator Positions and Work Areas”
Grounding Cabling Standards
When you attach the equipment grounding (earthing) conductors to your equipment and the ancillary
support apparatus, meet the following bonding standards:
• Each electronic equipment chassis must have a separate and independent equipment grounding
conductor.
• Paint, enamel, lacquer, and other electrically non-conductive coatings must be removed from
threads and bonding surface areas to ensure good electrical continuity (NFPA 70-2005, Article
250.12).
CAUTION: Using a star washer does not alleviate the requirement to remove non-
conductive coatings from attachment surfaces because the star washer does not provide
enough contact surface area.
• Connections to steel and galvanized steel pipes, conduit, or other round member items must be
made by using a UL 486A listed, bolted clamp with stainless steel securing hardware or other
suitable listed means. In high-humidity areas, the clamps must be stainless steel or tin-plated UL
486A listed to prevent galvanic corrosion.
• Connections to vibrating or moveable items must be made by using an exothermic weld or a
compression-type two-hole lug.
• Connections to structural building steel must be made by using an exothermic weld, listed
irreversible high compression-type connection, or listed tin-plated flange-type bonding connector
equipped with two securing bolts.
• Connections to the raised flooring support system must be made by using a tin-plated listed
compression lug, listed pedestal clamp, or exothermic welding. Where practical, the lug should be
effectively bonded to the upper support plate of the pedestal or to cross connecting stringer.
Integrate equipotential bonding at a network operator position into the position equipment to the
greatest extent possible. This solution reduces the need to place equipment grounding conductors.
Bond all telecommunication cable shields, data cable shields, and the equipment or furniture AC
Equipment Ground (ACEG) together at the Sub-System Ground Bus Bar (SSGB) position or within the
equipment. Bond outer shields of telecommunication cables serving the network operator position or
cluster of positions (to or from a different location) directly to the SSGB or by using conductors:
• 16 mm2 csa (#6 AWG) insulated copper conductor for lengths not exceeding 3.9 m (13 ft)
• 6 mm2 csa (#10 AWG) insulated copper conductor for lengths not exceeding 1.8 m (6 ft)
The outer shield ground is provided automatically when the cable connector contains a shield-to-
chassis connection.
MN000672A01-E
Chapter 4: USB Audio Interface Module
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