A rack was added to a live data center on a Friday. On Monday a technician moving one patch cord could not tell which of 48 ports led where, because the panel had been marked up three years earlier and the ink had faded to two smudges. The move took four hours instead of ten minutes, and nobody could prove the link was restored to specification.
Nothing was broken. The installation simply had no administration, and TIA-606 supplies it.
Why Administration Is Part of the Standard
Structured cabling rests on three standards that are easy to confuse. ANSI/TIA-568 covers the cabling itself. TIA-569 covers pathways and spaces. ANSI/TIA-606 is the administration standard: it defines how to identify, label and document every element of a structured cabling system, from individual cable runs to entire telecommunications spaces.
It is a voluntary industry standard, not a federal regulation — a distinction misunderstood in both directions. TIA-606 is not law, so an unlabeled installation does not breach a building code. But BICSI RCDD specifications routinely reference it, it is commonly cited as a contractual requirement, and where a contract specifies TIA-606 conformance it becomes binding.
The edition most references cite is TIA-606-C (July 2017), building on TIA-606-B from 2012; a -D revision later extended the standard to automated infrastructure management systems. The -C revision added an Annex D for cabling that supports remote powering, including a cable bundle identifier scheme, aimed at letting automatic infrastructure management systems from different manufacturers exchange data. It also reworked bonding and grounding identifiers to align with TIA-607-C, renaming BCT to TBC, RGB to RBB and TMGB to PBB.
One practical note: if your contract cites a specific edition, use that edition. Core labeling requirements have held steady across revisions, but identifier format guidance has moved.
What Must Be Labeled
The most common mistake installers make is treating cable labeling as the whole job. Every element below requires identification, and missing any of them is a compliance failure:
Element | What it needs |
|---|
Cable runs | A unique identifier at both ends |
|---|
Patch panels and ports | A label per port, readable with cords installed |
|---|
Telecommunications spaces | A unique space identifier |
|---|
Racks and cabinets | A unique identifier on the front vertical rail |
|---|
Pathways | Identification along the route |
|---|
Grounding and bonding | Source and destination on bonding conductors |
|---|
Firestop penetrations | Identification of the penetration |
|---|
Data center room grid | Grid reference for the space |
|---|
Two are consistently overlooked. Firestop labels matter because future work that disturbs a rated penetration needs to know its rating, and pathway labels matter because a cable is only traceable if its route is identifiable.
The Four Classes of Administration
TIA-606 does not apply the same documentation burden to a small office and to a multi-campus enterprise. The classes of administration, introduced in the 2002 edition of TIA-606-A, scale the requirement to the installation.
The classes are where reputable references diverge, and the difference is worth understanding rather than picking a side.
Class | Brady | AnD Cable | Silver Fox |
|---|
Class 1 | A single telecommunications room | Single equipment room, no backbone cabling | Single tenant, single building |
|---|
Class 2 | Multiple rooms in one building | One building with multiple telecom rooms | Single tenant, multiple buildings |
|---|
Class 3 | A campus (multiple buildings, multiple floors) | Multi-building campus with inter-building cabling | Multiple tenants or campuses |
|---|
Class 4 | A system spanning multiple geographic locations | Multi-site enterprise with external connections | Geographically distributed enterprise or carrier |
|---|
The reconciliation is that the sources describe different axes. Brady and AnD Cable both place Class 2 at physical scope — one building, multiple telecommunications rooms — while Silver Fox draws the line at tenancy. For a single-tenant campus the readings land in different classes even though the cabling is identical.
Size the scheme to whichever question your organization cannot afford to get wrong. If another tenant will inherit the documentation, Silver Fox’s Class 2 is the honest floor. If the cabling spans buildings you do not control, Brady’s Class 3 applies.
Building an Identifier Scheme
TIA-606 does not mandate a single identifier format. It defines a framework for consistent, unique identifiers, and the framework has to survive scrutiny from someone who has never seen the installation. Identifiers are built hierarchically, each element derived from its parent space. A common construction is Floor/Space.Grid-Location-Rack-Unit:Port:
Fragment | Meaning |
|---|
1A | Floor 1, Room A |
|---|
AD02 | Rack or cabinet grid coordinate |
|---|
40 | Panel position, in rack units from the bottom |
|---|
:02 | Port number |
|---|
1A.AD02-40:02 therefore reads as Floor 1, Room A, rack AD02, 40 rack units up, port 02. Racks and cabinets are labeled by grid coordinate matching their floor position; where no grid is used, by row and rack number. A simpler campus scheme runs B1-TR2-PP05-P12 — Building 1, Telecommunications Room 2, Patch Panel 05, Port 12.
Four rules do the real work:
The identifier is unique, and the cable carries the same one at both ends. The workstation end and the port it terminates on share an identifier, so a technician traces the connection without a drawing.
Sub-panel letters skip I, O and Q, which are misread as 1 and 0.
Each fiber or pair group gets its own unique identifier. A 12-fiber trunk is not one identifier.
The scheme is documented so a future administrator can interpret any label without institutional knowledge. An identifier that only makes sense to its creator does not satisfy the standard, because that person leaves.
Multi-building runs add campus and building prefixes. Where international readability matters, TIA-606-B onward allows optional ISO-style markers — + for a location aspect and = for a function aspect.
Where the Label Goes
Placement is specified, not left to taste, and this is where casual installations fail.
Every cable carries its identifier at both ends, applied within 300 mm of the termination point. That applies to horizontal cables, backbone cables, patch cords and inter-building cables alike.
The label must remain legible throughout the service life of the installation — typically 10 to 15 years for a commercial build.
On a patch panel, the port label must be visible with the cords installed. Behind-the-cord placement is not compliant: the label exists to be read during maintenance, which is exactly when cords are plugged in. Patch cord labels follow the same logic: each cord carries the identifier of the connection it establishes, derived from the source and destination ports, applied near the connector at each end.
On racks and cabinets, machine-printed labels go on the top and bottom, front and rear, so the identifier reads from either side of an aisle. Grounding elements carry the floor, room and busbar reference; firestop labels carry floor, penetration number and rating.
Label Types and What Survives
TIA-606 specifies performance requirements — durability, legibility and adhesion over the service life — rather than materials. In practice three label types cover almost every application.
Type | Best for | Why |
|---|
Self-laminating wrap | Horizontal and patch cables | Wraps the jacket; a clear tail covers the printed text |
|---|
Flag | Densely bundled cable | Extends outward as a visible tab where a wrap would be hidden |
|---|
Tie-on | Large-diameter backbone, outdoor runs | Adhesive is impractical on thick or wet, exposed cable |
|---|
Patch panel labels are a fourth category with one critical dimension: port pitch, which varies between panel manufacturers and panel counts. Standard 24-port and 48-port formats exist, but stock has to match the panel in front of you.
Material choice matters more than most installers expect. Thermal transfer printing onto polyester outperforms direct thermal and inkjet for long-term legibility, and direct thermal labels — heat-sensitive paper rather than a ribbon — can fade significantly, particularly with temperature swings or UV exposure. A label that carries the identifier for a decade is the requirement; a faded one fails it, which is what happened to the marker in the opening story.
Color Coding: Two Schemes in Print
TIA-606 includes a color scheme, and it matters to be precise about what color does. Color coding works alongside identifier labels rather than instead of them. Color gives instant visual context; the identifier provides the documentation link. Colored jackets, labels and patch cords are all acceptable, provided port labels still carry unique identifiers.
The published tables disagree, and this is not a case of one being wrong.
Color | Brady / TIA-568-C.0 topology | Silver Fox |
|---|
Blue | Subsystem 1 terminations in telecom spaces | Horizontal cables |
|---|
Orange | Central office demarcation | Multimode fiber |
|---|
Green | User side of the central office connection | Network connections from telecom closets |
|---|
Purple | PBX, mainframe, LAN, multiplexer | Common equipment |
|---|
White | Subsystem 3, MC to IC | First-level backbone |
|---|
Gray | Subsystem 2, IC to HC | Second-level backbone |
|---|
Brown | Campus cable between buildings | Inter-building backbone |
|---|
Yellow | Alarms, security, energy management | Single-mode fiber |
|---|
Red | — | Emergency services / key systems |
|---|
Aqua | — | Outside plant |
|---|
One table is organized by cabling subsystem topology, following ANSI/TIA-568-C.0; the other by cable type and function. They agree on blue, green, purple, white, gray and brown and diverge on orange and yellow — the topology scheme treats those as demarcation and alarms, the type scheme as multimode and single-mode fiber.
For a data center the topology reading is usually more useful, because it tells a technician which cross-connect a termination belongs to. For a fiber-heavy campus the type reading is more immediate. Either is defensible; mixing them within one installation is not.
Records and the MAC Problem
Labeling without documentation is a map without a legend. The standard requires a record linked to every identifier printed on a label, and the record has to carry more than the code:
- the identifier itself
- cable type and length
- source and destination locations
- connector type and patch panel details
- wiring scheme and installation notes
Records live in a spreadsheet, a DCIM system or another digital database, and must be updated immediately after every move, add or change — the MAC events that erode an administration scheme faster than any other cause.
The arithmetic is simple. A 500-port installation with cables labeled at both ends requires 1,000 cable labels, plus patch panel, rack and space labels. Hand-typing that volume is slow and introduces transcription errors, and any discrepancy between what is printed and what is in the cable schedule undermines the entire point of the standard. Generate identifiers from the cable schedule and batch-print from an Excel or CSV import, so the label and the record come from the same source.
Frequently Asked Questions
Is TIA-606 mandatory?
No. It is a voluntary industry standard, not a regulation. It becomes binding when a contract, project specification or warranty requirement cites it.
What is the patch panel labeling requirement?
Each patch panel port carries a unique identifier that corresponds to the identifier on the cable terminating at that port, and the label must remain visible with patch cords installed. No single label size or format is mandated.
How far from the termination should a cable label be?
Within 300 mm of the termination point, at both ends of every cable.
Do patch cords need labels?
Each patch cord should carry the identifier of the connection it establishes, derived from the source and destination port identifiers. Color-coded patch cords are acceptable, provided port labels still carry unique identifiers.
Can I use color instead of identifiers?
No. TIA-606 color coding supplements identifier labeling rather than replacing it. Color provides visual context; the identifier provides the link to the record.
The Short Version
TIA-606 is the administration standard that sits beside TIA-568 and TIA-569, defining how every part of a structured cabling system is identified, labeled and documented. It is voluntary, but contracts and warranty terms routinely make it binding.
Label every element, not just the cable: cable runs, patch panels and ports, spaces, racks and cabinets, pathways, bonding conductors, firestop penetrations and data center grid references. Place identifiers at both ends of every cable within 300 mm of the termination, and make sure port labels stay readable with cords plugged in.
Build a hierarchical identifier scheme that a stranger can interpret, keep it unique, and skip the letters I, O and Q. Choose self-laminating, flag or tie-on labels to suit the cable, print on polyester with thermal transfer rather than direct thermal, and match patch panel stock to the panel’s port pitch.
Then maintain the records, because labels without a linked record are decoration. Update them at every move, add and change, and generate labels from the same schedule so printout and database never drift apart.
Our communication cable and patch cord ranges are built for installations that have to be documented and maintained, from a single-floor office to a multi-building campus. How Ethernet cables work covers the transmission principles underneath, every test and inspection parameter is listed by measurement, and our certifications cover the compliance side of a project. If a project specification references TIA-606 and the scope is unclear, send us the details — the edition cited and the class of administration usually settle it.
Sources
- Brady — Cable Labeling Standards: ANSI/TIA-606-C, covering the statement that TIA-606-C is the latest update to the voluntary standard for administering telecommunications cabling infrastructure released by the Telecommunications Industry Association in July 2017 and that TIA-606-C builds on the guidelines established in the 2012 release of TIA-606-B, the TIA-606-C additions of Annex D which provides additional guidelines for administration of cabling supporting remote powering including a cable bundle identifier scheme and that this important development allows automatic infrastructure management systems from different manufacturers to work together, the identifier scheme for telecommunications grounding and bonding system elements specifying the use of terms compatible with ISO/IEC 30129 with legacy terms used in versions of the TIA-607 standard earlier than revision C also being allowed, the alignment with TIA-607-C including that BCT bonding conductor for telecommunications changed to TBC telecommunications bonding conductor and RGB rack grounding busbar changed to RBB rack bonding busbar and GE grounding equalizer changed to BBC backbone bonding conductor and TGB telecommunications grounding busbar changed to SBB secondary bonding busbar and TMGB telecommunications main grounding busbar changed to PBB primary bonding busbar, the further updates that TIA-606-B-1 content was replaced with a reference to TIA-5048 as an adaptation of ISO/IEC 18598 and that the preference for an ISO/IEC TR 14763-2-1 compatible format for new administration systems was removed and that a table summarizing variables used in identifier formats was added, the warranty compliance point that some cable warranties require successful labeling and documentation to be submitted directly to the cable manufacturer as proof of system installation and that since cable warranties are a key factor in many buyers purchasing decisions successfully certifying a system by supplying this type of information to the manufacturer is extremely important, the record keeping point that the standard requires you to link a record for each identifier that is printed on a label allowing your customer to have a well documented infrastructure that can be understood and managed by anyone responsible for making moves adds or changes, the list of components each of which must be clearly labeled with the appropriate identifiers being pathways and work area outlets and patch panels and racks and cabinets and ports and grounding busbars and cabling and firestop locations and telecommunications space and data center room grid, the history that in 2002 the Telecommunications Industry Association set the voluntary TIA-606-A Standard which outlined the minimum level of information that should appear on labels used for tracing a cable to a floor and telecom room and patch panel position or block position on which it is terminated, that this basic level of label information was deemed essential when replacing updating or troubleshooting issues in a telecommunications network, that key to the TIA-606-A Standard was the establishment of classes of administration based on levels of complexity including number of users network locations and size with Class 1 being a single telecommunications room and Class 2 being multiple rooms in one building and Class 3 being a campus with multiple buildings and multiple floors and Class 4 being a telecommunications system that spans multiple geographic locations, that the TIA-606-A Standard modernized the way each telecommunications system dealt with multiple products and vendors providing a uniform administration approach regardless of application, that the TIA-606-A Standard existed for 10 years until it was replaced with a more comprehensive standard the TIA-606-B, the TIA-606-B description that in 2012 the TIA updated the standard to TIA-606-B providing voluntary guidelines for labeling and record-keeping for wiring data or voice communications and network systems, that an important difference between TIA-606-A and TIA-606-B was that TIA-606-B covered more facility types adopting the identification scheme and extending its use to locations outside computer and equipment rooms including data centers commercial residential industrial and healthcare, that TIA-606-B added new criteria for labels stating that labels must be legible and permanent and placed at both ends of cables and printed with termination point identification and matched with records usually in a database, that the TIA-606-B Standard also recommended color-coding cables connectors cords jumpers termination fields labels pathways and other components creating a more uniform way to identify the type application function or position of a component within the infrastructure, and the color-coding of termination fields based on the topology of Cabling Subsystem 1 2 and 3 cabling specified in ANSI/TIA-568-C.0 with orange for central office connection and green for user side of central office connection and purple for connection to PBX mainframe computer LAN multiplexer and white for terminations of building Cabling Subsystem 3 cable connecting MC to ICs and gray for termination of building Cabling Subsystem 2 cable connecting IC to HCs and brown for termination of campus cable between buildings and blue for terminations of Cabling Subsystem 1 cable in TSs and yellow for alarms security or energy management — https://www.bradyid.com/resources/tia-606-c-cable-labeling-standards
- Silver Fox — TIA-606 Cable Labeling: The Complete Compliance Guide, covering the definition that ANSI/TIA-606 is the administration standard for telecommunications infrastructure in commercial buildings adopted as an American National Standard and that it defines how to identify label and document every element of a structured cabling system from individual cable runs to entire telecommunications spaces, that the standard applies to any organization that designs installs or operates a structured cabling system in a commercial building or campus including data centers corporate campuses healthcare facilities educational institutions and multi-tenant buildings, that BICSI RCDD project specifications routinely reference TIA-606 compliance and that it is commonly cited as a contractual requirement in commercial and institutional installation contracts, the version note that if a project specification references a specific version of the standard the version cited in the contract documents should be confirmed and that core labeling requirements have remained consistent across editions but identifier format guidance has evolved between versions, the statement that the most common mistake installers make is treating cable labeling as the whole job and that TIA-606 requires labels on every element of the structured cabling system with missing any of these being a compliance failure, the cable runs requirement that every cable must carry a unique identifier at both ends applied within 300mm of the termination point and that this applies to horizontal cables backbone cables patch cords and inter-building cables and that the label must remain legible throughout the service life of the installation, the patch panel and ports requirement that each port on every patch panel requires its own label identifying that ports unique identifier and that the label must be visible after installation with cords in place and that behind-the-cord placement is not compliant and that label dimensions vary between panel brands and port counts, the telecommunications spaces requirement that every telecommunications room equipment room entrance facility and cross-connect must be labeled with its unique space identifier and that these identifiers form the root of the naming hierarchy used throughout the installation, the racks cabinets and pathways requirement that each rack and cabinet requires a unique identifier applied to the front vertical rail and that cable pathways and firestop penetrations also require identification labels with firestop labels in particular being frequently overlooked but critical for code compliance inspections and any future work that disturbs the penetration, the patch panel port identification that each port carries a unique identifier derived from the hierarchical naming scheme of telecommunications space panel and port number and that labels must remain visible with patch cords installed, the grounding and bonding requirement that the telecommunications bonding backbone and associated bonding conductors also require labels identifying source and destination, the naming conventions statement that TIA-606 does not mandate a single identifier format but defines a framework for creating consistent unique identifiers across all classes of installation scaling from a single-building deployment up to a multi-campus enterprise and that the standard defines four administration classes based on scale being Class 1 single tenant single building with typical application of small office or single-floor commercial space and Class 2 single tenant multiple buildings with typical application of corporate campus or hospital complex and Class 3 and 4 being multiple tenants or multiple campuses with Class 4 extending to geographically distributed enterprise or carrier deployments, that identifiers are constructed hierarchically with each element derived from the parent space, the example that a typical Class 2 identifier for a horizontal cable port might look like B1-TR2-PP05-P12 where B1 is Building 1 and TR2 is Telecommunications Room 2 and PP05 is Patch Panel 05 and P12 is Port 12 and that the cable at the workstation end carries the same identifier allowing any technician to trace the connection without consulting a separate drawing, the key requirement of consistency that every identifier must be unique within the system and that the scheme must be documented so that future administrators can interpret any label without relying on institutional knowledge, the practical approach of generating identifiers directly from a cable schedule in a spreadsheet then batch-printing them using software that imports from Excel or CSV eliminating transcription errors and ensuring the label printed matches the record in the documentation, the link identifier requirement that under TIA-606-C the same identifier must appear at both ends of every link applied within 300mm of the termination, the label selection statement that TIA-606 specifies performance requirements of durability legibility and adhesion over the service life of the installation rather than mandating specific materials, that self-laminating wraps are the standard choice for cable runs where you print on the first section wrap the label around the cable jacket and the clear tail covers the printed text with such labels suiting cable diameters from Cat5e through multimode fiber, that patch panel labels are dedicated label stock for port identification where the critical dimension is port pitch which varies between manufacturers and that formats exist for standard 24-port and 48-port panels, that tie-on labels are used for backbone cables outdoor runs and locations where adhesive wraps are not practical particularly on large-diameter cables or cables in wet or exposed areas, that the standard requires labels to remain legible throughout the service life of the cabling system typically 10 to 15 years for a commercial installation, that thermal transfer printing onto polyester substrates consistently outperforms direct thermal and inkjet alternatives for long-term legibility, and that direct thermal labels which use heat-sensitive paper rather than a ribbon can fade significantly over time particularly in spaces where temperatures fluctuate or UV lighting is present, the flag label guidance that flag labels attach to the cable and extend outward as a visible tab which is useful where cables are densely bundled and a wrap would be obscured, the color coding statement that TIA-606 includes a color-coding scheme that allows technicians to identify cable type and function visually and that colors can be applied through colored cable jackets colored cable labels or colored patch cords and that color coding works alongside identifier labeling rather than instead of it since color provides instant visual context and the unique identifier provides the documentation link, the color table with blue for horizontal cables workstation connections and orange for multimode fiber optic cables and yellow for single-mode fiber optic cables and green for network connections from telecom closets and white for first-level backbone main to horizontal cross-connects and gray for second-level backbone intermediate to horizontal cross-connects and purple for connections from common equipment such as PBX or multiplexer and red for emergency services or key systems and brown for inter-building backbone cabling and aqua for outside plant cabling, the efficiency statement that the operational cost of cable labeling is not the labels themselves but the time spent generating them and that a 500-port installation with cables labeled at both ends means producing 1000 cable labels plus patch panel labels rack labels and space identifiers, that typing each one manually into a handheld printer is slow and introduces transcription errors, and that any discrepancy between what is printed and what is in your cable schedule documentation undermines the whole point of the administration standard, the FAQ statement that TIA-606 is a voluntary industry standard not a federal regulation but is frequently cited as a contractual requirement in commercial institutional and government installation project specifications and that where a contract specifies TIA-606 conformance it becomes a binding project requirement, the FAQ that TIA-606 requires each patch panel port to carry a unique identifier corresponding to the identifier on the cable terminating at that port and that the label must be placed so it is visible with cords installed and that there is no single mandated label size or format but labels must be legible and durable throughout the service life of the installation, and the FAQ that each patch cord should carry the identifier of the connection it establishes typically derived from the source and destination port identifiers with self-laminating wrap labels applied near the connector at each end being the standard approach and that some installers use color-coded patch cords in place of color-coded labels which is acceptable provided the port labels still carry unique identifiers — https://silverfoxlabeling.com/blogs/article/tia-606-cable-labeling-compliance-guide
- ANDcable — ANSI/TIA-606-B Explained: The Data Center Cable Labeling Standard, covering the identifier components where AD02 is the rack or cabinet grid coordinate and 40 is the patch panel position measured in rack units from the bottom and 02 is the port number and that this alphanumeric system ensures each endpoint is unmistakably traceable, that for global compatibility 606-B also allows optional ISO-style prefixes like plus for location and equals for function making records internationally readable, the areas of application being equipment rooms and telecom spaces and cabling subsystems 1 2 and 3 and racks cabinets and patch panels and grounding and bonding systems and firestopping elements and outdoor and inter-building pathways, that this level of scope makes it suitable not only for data centers but also for industrial and healthcare facilities where cable traceability is critical, the documentation statement that labeling without documentation is like a map without a legend and that every identifier created under 606-B must be linked to a record typically stored in a database or spreadsheet containing information such as cable type and length and source and destination points and connector and patch panel details and installation or service notes, that when properly maintained these records allow anyone even a new technician to understand the network layout instantly cutting troubleshooting time dramatically, the space and rack labeling instructions to assign each telecommunications space a floor and room identifier such as 1A for Floor 1 Room A and to identify racks or cabinets using grid coordinates such as AD02 that match their floor grid position and to apply machine-printed labels to the top and bottom front and rear of each rack or cabinet and where grid coordinates are not used to label by row and rack number, the patch panel instructions to label each patch panel with its rack coordinate and rack-unit position from the bottom with the example AD02-35 being a panel located at 35 rack units from the bottom of rack AD02 and to include where applicable the far-end patch panel identifier with the example AD02-35 p 01-06 to AG03-35 p 01-06 and that for sub-panels letters A B C should be used omitting I O and Q to prevent confusion and to label both near-end and far-end ports whenever possible, the port and cable labeling instructions to use the standard identifier format of Floor/Space.Grid-Location-Rack-Unit:Port with the example 1A.AD02-40:02 meaning Floor 1 Room A rack AD02 at 40 RU position port 02, that horizontal Subsystem 1 links are labeled with mirrored near-end and far-end identifiers, that both ends of every cable should be labeled including connectors faceplates and MUTOA assemblies, that each link must have a unique identifier and if used optional ISO markers where plus equals location aspect and equals equals function aspect for example equals XO for outlet, the backbone cabling instructions to identify both termination spaces and port ranges with the example 1A.AJ06-27:01 / 2A.AJ09-27:01 and that for multi-building or campus sites the identifier is prefixed with campus and building IDs and that each fiber or pair group must have its own unique identifier, the special components guidance to mark grounding and bonding as Floor/Room equals RGB number with the example 2A=RGB1/AJ05 and firestops as Floor-FSL number with rating with the example 2-FSL01(6) meaning 2nd Floor Fire Stop 01 with a 6-hour rating and outside plant as maintenance holes or pedestals identified with campus code and GPS with the example LAX1-MH101 with coordinates, the color coding table listing demarcation point as orange Pantone 150 C for central office connection and network connection as green Pantone 353 C for user side of the CO connection and common equipment as purple Pantone 264 C for PBX LAN and mainframe and Subsystem 3 terminations as white for building MC to IC and Subsystem 2 terminations as gray Pantone 422 C for IC to HC connections and campus cabling as brown Pantone 465 C for inter-building cables and Subsystem 1 terminations as blue Pantone 291 C for telecom spaces and miscellaneous as yellow Pantone 101 C for security and alarms, and the record keeping requirement that every identifier must have a matching record including identifier code and cable type and length and source and destination locations and connector type or patch panel info and wiring scheme and service data and that records should be kept in a spreadsheet DCIM or other digital database and updated immediately after every move add or change — https://andcable.com/cable-management/data-center-cable-labeling-standard/
