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How to Read a DHD Serial Number

All DHD devices are labelled with a combined identifier that contains both the device type and its unique serial number. This identifier is printed as a barcode and as readable text.

Using the example Y1156BW601234567, the identifier breaks down into two main parts:

Type (Y1156B) identifies the device:

  • Y — Stands for “52-“, indicating a Series 52 device.
  • 1156 — The type number, corresponding to a specific device model.
  • B — The revision letter, indicating the hardware revision of the device.

Serial number (W601234567) uniquely identifies the individual unit:

  • W — Production type.
  • 6 — Last digit of the production year. This could refer to 2006, 2016 or 2026.
  • 01234 — Unique manufacturing batch number.
  • 567 — The unit’s number within that manufacturing batch.
DHD serial number explained

The serial number is required when contacting DHD support, requesting RMA service or ordering replacement parts. It can be found on the device label of every DHD product.

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