RW2000 One-Time Copy Blank (Cyfral / Metakom)
OTP blank for Cyfral and Metakom keys: written once, then locked.
A one-time-programmable blank for two common non-Dallas intercom formats. A duplicator that supports the RW2000 routine writes the Cyfral or Metakom code once; the blank is then designed to lock and not be re-flashed — the copy is intended to behave like an original key, which suits sites concerned about key-of-key cloning. Compatibility depends on your duplicator and its firmware; test a sample on your own system before ordering. For repeat-use Dallas blanks choose RW1990 instead.
Ordering information
| MOQ | Confirmed by model and order when quoting |
|---|---|
| Preparation time | Availability and lead time are confirmed by model and order when quoting |
| Packing | Confirm pack quantity, protection and labelling for the selected model. |
| Samples | Sample quantity, fees and shipping are confirmed for the selected model. |
| Payment | Agree payment terms and the payee in the quotation and invoice. |
| Shipping | Confirm the shipping method, cost and timing for your destination and order. |
| Customization | State ROM, colour, marking and packing needs; feasibility and cost require confirmation. |
An OTP option for Cyfral and Metakom doors
Two things set it apart at once. First, format: support for a particular RW1990 blank does not establish support for Cyfral or Metakom; identify the target protocol and test the proposed blank. Second, permanence: the RW2000 is designed to program exactly once and then lock, so the copy is intended to behave like an original and not be quietly re-flashed to another door. Do not infer RW2000 write support from a successful RW1990 test; check the proposed version, electrical requirements and duplicator firmware separately.
Specifications
| Chip / compatibility | RW2000 · Cyfral / Metakom emulation, one-time programmable (OTP) |
|---|---|
| Memory | Writes once with a duplicator that supports the RW2000 routine, then locks read-only |
| Package | F5 stainless can; marking and packaging are confirmed in the quote |
| Protocol | Cyfral / Metakom (not 1-Wire Dallas) |
| Options | Bare can or with fob handle, subject to confirmation in the quote. Colour, marking and other customization options: feasibility, MOQ and cost are confirmed in the quote. Writing typically requires ~8 V — confirm for the supplied version and check that your duplicator supports the RW2000 routine |
Inside the stainless can
Typical construction of this can format: a stainless-steel shell, an insulating grommet separating lid from base, and the chip bonded inside. Lid = data contact, base = ground return. Wall thickness, grommet material and other construction details: confirm for the supplied version.
Which blank does your duplicator write?
Blanks differ less in the finished key than in how the copier writes them. Protocol names follow the routines used in mainstream and open-source duplicator firmware — check the blank list in your machine's manual before ordering.
| Model | Key format | Write protocol | Rewritable? | Pick it for |
|---|---|---|---|---|
| RW1990 | Confirm the supplied version and target protocol | — | Rewritable ID; request version-specific endurance data | Confirm the write procedure, duplicator and firmware, then test a sample |
| RW1990.2 | Dallas 1-Wire | RW1990.2 | Rewritable | When the copier lists ".2" specifically |
| TM-01A | Dallas 1-Wire | TM-01 | Positioned as one-time write; confirm for the supplied version | Sites that prefer a one-time-write copy; test a sample on your duplicator |
| TM08v2 | Dallas + Cyfral + Metakom | RW1990.1 | Rewritable | One model for a mixed estate; test a sample on your duplicator |
| RW2004 / TM2004 | Dallas 1-Wire (+ multi-format versions) | TM2004 | Rewritable + writable memory block | Controllers that read data, not just an ID |
| RW2000 | Cyfral / Metakom | RW2000 (~8 V) | Designed for one-time write; confirm for the supplied version | Cyfral & Metakom doors, copy designed not to be re-written |
Typical applications
Frequently asked questions
What is the difference between RW2000 and RW1990?
Two different jobs. RW1990 is a rewritable-ID blank; the write procedure, endurance and equipment support must be confirmed for the supplied version. RW2000 is intended for the Cyfral and Metakom intercom formats and is offered as one-time programmable: it is meant to accept a single write and then lock, behaving like an original key; confirm this on samples before relying on it.
Can an RW2000 copy be copied again?
The RW2000 is intended not to be re-written — after the single programming pass it is meant to stay locked (confirm on samples). The code it carries can still be read and written onto another blank, as with any original key; what OTP prevents is your issued copy being silently re-flashed to a different door.
Related products
RW1990 Rewritable Blank
A rewritable TM blank for duplicating services.
RW1990.2 Rewritable Blank
RW1990.2 blank; confirm its version and required write procedure.
TM-01A One-Time Copy Blank (Dallas OTP)
One-time-programmable blank; confirm the source key and target equipment before ordering.
TM08v2 Multi-Format Blank
Multi-format blank; confirm the supplied version and your duplicator's support.