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<h1>NEBS Compliance for BSC2i and TCSM2A</h1>

<p>NEBS stands for Network Equipment Building System. It is
a set of Bellcore Standards, the purpose of which is to unify HW requirements
and help Telephone companies to evaluate the suitability of products for use
in their networks. Compliance to NEBS is inquired by RBOC: s (Regional Bell
Operator Company) in the USA.</p>


<p>The requirements are detailed in two Bellcore standards:</p>


<ul>
<li><p>GR-63-CORE, ‘Network Equipment-Building
System (NEBS) Requirements: physical protection’, contains for examples fire
resistance, earthquake endurance, environmental endurance (transport, storage
and use) and</p>
</li>
<li><p>GR-1089-CORE, ‘Electromagnetic Compatibility
and Electrical Safety - Generic Criteria for Network Telecommunications Equipment’,
contains for example EMC, Electrical Safety and Telecommunications interfaces
requirements.</p>
</li>
</ul>


<p>Both standards have together some 260 specific requirements.
The application of a requirement depends on what kind of equipment is in question
and what is the intended application. SR-3580 groups the requirements into
four groups, NEBS levels 1, 2, 3 and ‘Other Criteria’.</p>


<p>BSC and TCSM2 in S10 are for ‘Central Office’ uses, and
all external interfaces are ‘type 2’ according to GR-1089-CORE.</p>


<p>Nokia provides NEBS3 kits as upgrade items for obtaining
an applicable (limited) NEBS Level 3 compliance for DX200 based BSC2i (ANSI)
and TCSM2A Network Elements. There are dedicated kits for both BSC2i and TCSM2A
products.</p>


<p>Basic content of NEBS3 kits includes following items:</p>


<ul>
<li><p>A new door set for earthquake support </p>
</li>
<li><p>New side plates for earthquake support </p>
</li>
<li><p>Installation Set with ESD Stickers</p>
</li>
<li><p>Installation Instructions.</p>
</li>
</ul>
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