Free network cable labels

A network cable label has to be readable after you wrap it or flag it. Put the port ID in a few characters on Brother TZe tape, 12 mm for one line or 24 mm if you need a second line or a small QR code. Tape sizes and other Brother stock are on the Brother label pages.

Wrap and flag are different jobs

A wrap goes around the jacket and sticks to itself. You read it by turning the cable. That works on a patch cord you can spin, and it fails on a thin strand where the words disappear under the overlap. A flag sticks the tape to itself past the cable so the words face you like a tiny sign. Flags catch on fingers in a dense bundle, so use them where someone has to read the ID without untwisting the run.

Write the ID the way you search for it later. "SW2-A P24" beats "this cable goes to the second switch, port 24, installed in March." The closet is dim. The font has to be the largest size that still fits the tape. Bold beats a thin face. White tape with black type is the combination that still works when the jacket is blue or yellow.

12 mm and 24 mm TZe, and where DK fits

Brother TZe tape in 12 mm width is the everyday cable wrap. One line, a port name, maybe a room number if you abbreviate it. 24 mm tape is wide enough for two lines, a from-and-to pair, or a short ID plus a small QR code. Both widths are real tape sizes you can open in the editor. Do not invent a third width because a screenshot looked close. If the cartridge says 12 mm, design at 12 mm.

DK stock is a different Brother family. Those are die-cut labels for a QL printer, such as an address size, not a laminated wrap you spin around a Cat6 jacket. A DK label can be a flag you cable-tie to a bundle, but it will not hug a single patch cord. If the printer on the bench is a P-touch, stay on TZe. If it is a QL, you are making a tag, not a wrap.

1. Open the 12 mm TZe tape and set the length to the text you actually have. No signup.
2. Type the port ID in one line. Add a second line only if you moved up to 24 mm tape.
3. For a flag, leave blank tape at both ends so you can stick it to itself.
4. Print one, wrap or flag a cable you can reach, and read it from the aisle.
5. If you add a QR code, scan it in the closet light before you print the patch list.
6. Then import the spreadsheet of ports and print in order, so a missing number is obvious.

Text that stays readable, and a small QR

A QR code on 12 mm tape is a gamble. The modules get tiny, and a phone in a rack aisle often cannot lock on. Put the QR on 24 mm tape, keep it square, and leave a white margin around it. The human-readable ID still has to be there. When the code fails, the person with a flashlight needs the port name.

Laminated TZe survives a hand pulling patch cords better than paper. Heat in a ceiling tray is a different problem. If the run sits over a furnace duct, do not expect a paper address label to last. Print the ID, press the wrap down with a thumb so the edges seal, and do not stretch the tape until the letters skinny out.

Print the patch list, not one cable at a time

The useful source is the spreadsheet you already keep: switch, port, far end, cable number. Sort it the way you will stand in front of the rack. Map those columns onto the tape, print a short run, and fix the abbreviations that wrapped onto a second line you do not have room for. A free network cable label is just that tape, with your IDs, printed from the list.

You still crimp, dress, and test the cable. The label does not certify the run. It stops the next person from tracing 40 blue cords with a toner because nobody wrote the port down.