# RTU5024 user manual

> Free RTU5024 user manual. Default password 1234, full SMS command table, wiring diagram, troubleshooting, and the original manufacturer PDF. King Pigeon / BLIIoT / Huobei.

Canonical: https://gate-opener.app/manuals/rtu5024/

Last reviewed: May 23, 2026 10 min read

Everything you need to install, configure and troubleshoot the RTU5024 GSM gate opener module: the default password, every SMS command, the wiring diagram and the original manufacturer PDF.

**At a glance:** The RTU5024 is a GSM gate opener module manufactured by King Pigeon / BLIIoT / Huobei. The default password is `1234`. It supports up to 999 authorized phone numbers across 1 relay output and runs on DC 9-36V. Commands are sent over SMS using the [RTU5024 protocol](https://gate-opener.app/hardware/rtu5024/commands/).

## Download the official PDF manual

The original King Pigeon / BLIIoT / Huobei factory manual in PDF form:

[Download RTU5024 manual (PDF)](https://gate-opener.app/manuals/RTU5024-manual-v1.7.1.pdf)

If the PDF is missing diagrams or your hardware shipped with a different version, please [let me know](mailto:hello@gate-opener.app) and I will add the alternative version.

## Hardware specifications

|  |  |
| --- | --- |
| Default password | 1234 |
| Maximum authorized users | 999 |
| Relay outputs | 1 |
| Protocol family | RTU5024 |
| Power supply | DC 9-36V |
| SIM card type | Standard SIM |
| Relay rating | 3A / 240VAC |
| Operating temperature | -10 to +60 C |
| Dimensions | 88 x 62 x 25 mm |

These are the manufacturer's published values. The same hardware is sold under several brand names — if your unit shows a different sticker, the protocol and command set are still identical. Also known as: RTU5024, RTU5024 4G, RTU5024 V2.

## First-time setup checklist

Before sending any SMS commands, work through this list. Skipping a step accounts for most of the support emails I receive.

1. Insert a working SIM card into a regular phone. Confirm voice and SMS work. Disable the SIM PIN.
2. Insert the SIM into the RTU5024. Connect DC 9-36V.
3. Wait for the signal LED to blink slowly (network registered). This takes 30-90 seconds on first power-up.
4. From an authorized phone, send the change-password command to replace the default `1234` with your own.
5. Add yourself as the first authorized user. Confirm by calling the SIM number — the gate should pulse.
6. Wire the relay output to your gate motor's trigger input (typically labelled "ON", "MAN", "OPEN").

The detailed setup walkthrough with example SMS commands is in the [RTU5024 setup guide](https://gate-opener.app/blog/rtu5024-setup-guide/).

## SMS command reference

Every command for the RTU5024, copy-pasteable. Replace `{pwd}` with your own password. The full annotated reference with response examples is on [/hardware/rtu5024/commands/](https://gate-opener.app/hardware/rtu5024/commands/).

### Initialize (REQUIRED first step)

Register the module's SIM card number. This is the FIRST command you must send. Use 00 prefix instead of +.

Syntax: `{pwd}TEL{moduleSIM}#`

Example: `1234TEL00861351015#`

### Sync clock

Set the module's internal clock. Required for time-limited users to work correctly.

Syntax: `{pwd}T{YYMMDDHHmm}#`

Example: `1234T2603291530#`

### Change password

Change device password to new 4-digit password.

Syntax: `{pwd}P{newpwd}`

Example: `1234P6666`

### Add permanent user

Add authorized user to slot (001-200). Always allowed to call and control.

Syntax: `{pwd}A{slot}#{phone}#`

Example: `1234A003#123456#`

### Add time-limited user

Add user with access limited to a date/time range. Clock must be synced first.

Syntax: `{pwd}A{slot}#{phone}#{startYYMMDDHHmm}#{endYYMMDDHHmm}#`

Example: `1234A016#123456#1502050800#1502051000#`

### Query user by slot

Check which phone number is stored at a position.

Syntax: `{pwd}A{slot}#`

Example: `1234A002#`

### Batch query users

Query authorized numbers from slot range. Returns multiple SMS (10 numbers per SMS).

Syntax: `{pwd}AL{slotStart}#{slotEnd}#`

Example: `1234AL002#050#`

### Delete user

Remove authorized number at position (or overwrite with new number).

Syntax: `{pwd}A{slot}##`

Example: `1234A002##`

### Allow all callers

Allow any phone number to trigger the relay. WARNING: free access for anyone.

Syntax: `{pwd}ALL#`

Example: `1234ALL#`

### Authorized users only (default)

Only authorized numbers can trigger the relay. Recommended setting.

Syntax: `{pwd}AUT#`

Example: `1234AUT#`

## Troubleshooting

If a command returns *Error password*, double-check that you are sending the command from an authorized phone using exactly the syntax above. The RTU5024 firmware is strict about case, spacing, and the `#` delimiters. Common causes:

- Sending from a number that is not on the authorized list (call the gate first to test).
- Old password still cached after a factory reset. The post-reset default reverts to `1234`.
- Lowercase command keywords. RTU5024 commands are uppercase.
- Extra spaces or autocorrect inserted by your phone keyboard. Disable predictive text for the gate's SIM number.

The full troubleshooting guide with diagnostic SMS commands and signal-strength checks lives at [rtu5024-troubleshooting](https://gate-opener.app/blog/rtu5024-troubleshooting/).

## Skip the SMS commands entirely

The whole reason this site exists is that nobody enjoys typing SMS commands like `{pwd}#TEL+31612345678#001#` from memory. GateOpener gives you buttons, forms, and confirmation screens — same hardware, clean interface.

[Get GateOpener](https://gate-opener.app/download/)