Nortel SL-100 Product Manual

Also see for Meridian SL-100: User guide User guide Reference guide Fundamentals Reference manual

Contents

Nortel SL-100 Product Manual Manual pdf 86 page image

86 Cabinet modular hardwareAll cabinets meet the requirements of the Federal CommunicationsCommission (FCC) Part 15 EMI compliance.Earthquake resistanceEach steel cabinet is constructed of two single-piece side members joined toa specially reinforced base that provides resistance to earthquake vibrationdamage. Bolting two or more reinforced cabinets together improvesearthquake resistance.Among other things, the New Equipment Building Specifications (NEBS),Applied Technology Council (ATC), and Uniform Building Codes (UBC)establish seismic (earthquake) zoning.Earthquake risk zones are considered to be ATC Zone 6 and 7, UBCZone 4, and NEBS Zone 4. In these zones, a minimum of 3000 psiconcrete strength at 5.5 in. of concrete thickness is required to meet thespecifications of the cabinet floor anchors.Assuming the building that houses the cabinets is not destroyed, damageresistance is provided against forces up to 150 percent of (NEBS) Zone 4and ATC 3-06 specifications.The cabinet also exceeds the NEBS tipping specification, therefore, thecabinet requires four bolts and anchors for fastening to a solid floor inearthquake risk areas. In earthquake risk areas where raised flooring isused, a consulting engineer should supervise the installation of a suitablebase structure.Site level power and groundingMeridian SL-100 systems are powered by an external, customer providedpower plant. All Meridian SL-100 system installations require a -48 V powersource. Meridian SL-100 systems use an Isolated Bonding Network (IBN)but can share power plant facilities with Common Bonding Network (CBN)equipment. Equipment lineups are individually grounded through the frameground equalizer to a single point ground.Power plant configurationThe operating range for Meridian SL-100 systems is -43.75 V to -55.8 Vmeasured at the input terminals of Meridian Cabinet Auxiliary Modules(MCAM).Power is usually supplied by a centralized power plant, which is sharedwith other systems or is dedicated. Terminal equipment, such as displayterminals and printers, is considered to be an integral part of the MeridianSL-100 system and is powered by AC power.Communication Server 2100Meridian SL-100 Product Guide555-4001-103 20.01 StandardSE09 20 October 2006Copyright © 2006, Nortel Networks Nortel Networks Confidential.