Ensure Proper Labelling of Cables for Identification
Label cables on both ends for easy identification and inspection of where they start and end.
Plain language
Labeling your cables at both ends helps you quickly identify which cable leads to what device. This is important because when something needs fixing or replacing, you don’t want to waste time unplugging the wrong thing or creating a bigger mess.
Framework
ASD Information Security Manual (ISM)
Control effect
Preventative
Classifications
NC, OS, P, S, TS
ISM last updated
Sept 2019
Control Stack last updated
19 Mar 2026
E8 maturity levels
N/A
Section
Cabling infrastructureTopic
Labelling CablesOfficial control statement
Cables are labelled at each end with sufficient source and destination details to enable the physical identification and inspection of the cable.
Why it matters
Without clear labels at both ends, staff can disconnect the wrong cable, delaying fault isolation and causing avoidable outages during changes.
Operational notes
Label every cable at both ends with source and destination (rack, device, port), and update/replace labels after moves, adds and changes.
Implementation tips
- Office Manager: Ensure all network and power cables are labelled clearly at both ends with their source and destination. Use a label maker or durable tags and note the specific device or port each cable connects to.
- IT Team: Develop a standard labelling system for cables in your organisation. Create a guide to ensure consistency, using colours or codes that designate cable function and destination.
- Facilities Manager: Work with the IT team to implement the labelling system for new installations and during routine maintenance. Schedule regular checks to maintain the integrity of labels and replace any that are damaged or unreadable.
- Procurement: Source quality labelling materials that withstand environmental conditions such as humidity or temperature changes where applicable. Choose label materials that stick well and remain legible over time.
- Training Coordinator: Conduct brief training sessions for staff on the importance of cable labelling and how to label cables properly. This can be included in onboarding for new staff who work with or near these installations.
Audit / evidence tips
-
Askthe cable labelling policy: Request a copy of the document or guide outlining the cable labelling procedures
GoodThe policy is clear, up-to-date, and aligned with best practices
-
Askto see labelled equipment: Provide specific examples or a visual inspection of labelled cables at a sample workstation or server room
GoodCables are clearly labelled and match the documented system
-
Askmaintenance logs: Request logs or records showing routine checks of cable labels
GoodLogs show regular checks with any issues promptly rectified
-
Asktraining records: Request proof of staff training on cable labelling
GoodRecords show recent and relevant training sessions attended by the necessary personnel
-
Askprocurement receipts or documentation: Request proof of purchased labelling materials
GoodReceipts show investments in durable, high-quality labelling materials that fit the organisation's standards
Cross-framework mappings
How ISM-1096 relates to controls across ISO/IEC 27001, Essential Eight, and ASD ISM.
ISO 27001
| Control | Notes | Details |
|---|---|---|
| layers Partially meets (1) expand_less | ||
| Annex A 7.12 | Annex A 7.12 requires cabling to be protected from interception, interference, or damage, which includes being able to verify cabling int... | |
These mappings show relationships between controls across frameworks. They do not imply full equivalence or certification.