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Video intercoms · Dahua 2-wire field guide

How to set the door code (PIN) on a Dahua VTO — and why the app can't do it

The customer wants to open the gate with a code. The indoor monitor has no option for it and neither does the app. Here is where it actually lives.

Part 3 of 7 · By Gareth Barber, Owner & Head Locksmith, Access Locksmiths · Published 2026-10-05

The problem

You look on the indoor monitor — no option. You look in the DMSS app — it can unlock the door and show unlock records, but there is no way to add a code. So installers conclude "you need an app, or the cloud" and start chasing network problems that aren't there.

The answer

The keypad code is a Public Password stored on the door station (VTO), and it is set in the door station's own web interface. No cloud, no app and no internet required.

How to set it

  1. Put a laptop on the same subnet as the door station (Part 1).
  2. Open the door station's web UI at its IP address and log in as admin with the password set at commissioning.
  3. Go to Local Device Config → Access Control → Config → Public Password → Setting → Add.
  4. Enter a user name and a 4–6 digit code, then OK / Apply.
  5. Test at the keypad: press #, the code, then #.
Keypad-only programming sequences (such as *3*…) exist only on certain "S"-series door stations. On models like the VTO3222E-P you use the web UI. It is the single most-missed step in the whole install.

Per-resident ("private") codes

Some kits also support a private code made of the room number (6 digits) + a personal password, which suits apartments. For a shared villa gate, the Public Password is the one you want.

Cards and fobs

Card readers are enabled under Card Settings, and cards are issued through the door station or a management centre. On our deployment the client's fobs and the new PIN worked side by side from day one — once the PIN was put in the right place.

In Brisbane and would rather it was just done? Access Locksmiths installs, repairs and commissions video intercoms and access control of all makes, with a written handover. Call 0404 159 369 or get a quote by text.

Written from one real deployment. Client-identifying details have been removed; technical values are generic examples. Firmware and hardware generations differ — verify each step against your own models. Corrections are welcome and will be published with attribution.

← Part 2: “Network abnormal” — what it means and the fix Part 4: What the VTNS2003B-2 “hub” actually does →
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