Cable management systems in non-shared government facilities are implemented in a secure and easily inspectable and maintainable way.

]]> This section provides specific requirements for cabling installed in non-shared Government facilities.

  • A non-shared facility is a facility occupied solely by a single agency.
  • A shared facility is a facility occupied by more than one agency.  A shared facility should have stricter physical and technical security controls than a non-shared facility. 
]]> This section is to be applied in addition to common requirements for cabling as outlined in the Section 10.1 - Cable Management Fundamentals.

]]> The controls within this section are only applicable to communications infrastructure located within facilities in New Zealand. For deployable platforms or facilities outside of New Zealand, Emanation Security Threat Assessments (Section 10.7) of this manual will need to be consulted.

]]> Further references can be found at:

Reference Title Publisher Source
NZCSS 400 New Zealand Communications Security Standard No 400 (Document classified CONFIDENTIAL) GCSB

GCSB

CONFIDENTIAL document available on application to authorised personnel

AS/NZS 3000:2007/Amdt 2:2012

Electrical Installations (Known as the Australia/New Zealand Wiring Rules

Standards NZ

 https://standards.govt.nz/
]]> Regular inspections of cable installations are necessary to detect any unauthorised or malicious tampering or cable degradation.

]]> In TOP SECRET areas or zones, all cabling MUST be inspectable at a minimum of five-metre intervals.

]]> Cabling SHOULD be inspectable at a minimum of five-metre intervals.

]]> Laying cabling in a neat and controlled manner, observing separation requirements, allows for inspections and reduces the need for individual cable trays for each classification.

]]> Approved cable groups may share a common reticulation system but SHOULD have either a dividing partition or a visible gap between the differing cable groups or bundles.

]]> Cabling run correctly in walls allows for neater installations while maintaining separation and inspectability requirements.

]]> Flexible or plastic conduit SHOULD be used in walls to run cabling from cable trays to wall outlets.

]]> Having a definite gap between cabinets allows for ease of inspections for any unauthorised or malicious cabling or cross patching.

]]> TOP SECRET cabinets SHOULD have a visible inspectable gap between themselves and lower classified cabinets.

]]> Power filters are used to provide a filtered (clean) power supply and reduce opportunity for technical attacks. See also 10.1.32.

]]> Power filters SHOULD be used to provide a filtered power supply and reduce opportunity for technical attacks.

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