ISM-0217

Where spatial constraints demand non-TOP SECRET patch panels be installed in the same cabinet as a TOP SECRET patch panel:
• a physical barrier in the cabinet is provided to separate patch panels
• only personnel holding a Positive Vetting security clearance have access to the cabinet
• approval from the TOP SECRET system’s authorising officer is obtained prior to installation.

Topic
Physical separation of cabinets and patch panels
Applicable to
Top Secret

History

Priority
must
Mar 2023
Where spatial constraints demand non-TOP SECRET patch panels be installed in the same cabinet as a TOP SECRET patch panel: • a physical barrier in the cabinet is provided to separate patch panels • only personnel holding a Positive Vetting security clearance have access to the cabinet • approval from the TOP SECRET system’s authorising officer is obtained prior to installation.
An existing control relating to where spatial constraints demand patch panels of ‘lower classifications’ be in the same cabinet as a TOP SECRET patch panel was amended to ‘non-TOP SECRET patch panels’ in the same cabinet as a TOP SECRET patch panel.
2015
Where spatial constraints demand patch panels of a lower classification than TOP SECRET belocated in the same cabinet, agencies must:• provide a physical barrier in the cabinet to separate patch panels• ensure that only personnel holding a TOP SECRET security clearance have access to thecabinet• obtain approval from the relevant accreditation authority prior to installation.
2010
Where spatial constraints demand patch panels of a lower classification than TOP SECRET be located in thesame cabinet, agencies must:• provide a physical barrier in the cabinet to separate patch panels• ensure only personnel cleared to TOP SECRET have access to the cabinet• obtain approval from the relevant accreditation authority prior to installation.