GATE ONE 4G

Full Device Manual

What's in the Box

• GATE ONE 4G device (in enclosure)
• 4G antenna
• Fixing screws

Device Overview

The device connects to your gate controller via push terminals at the top:

The SIM card slot is on the right side of the board. Push the card in to insert; pull it out to eject.

The 4G antenna screws onto the SMA connector at the top of the board.

SIM Card

This device uses a Nano SIM card.

1. Orient the SIM with the gold contacts facing down and the notched corner pointing inward (toward the board).
2. Slide it into the slot until it is seated.
3. To remove, pull the card out.

What the SIM needs:

• Voice calls enabled (to receive calls that open the gate)
• SMS enabled (for all text commands)
• Mobile data is only needed for cloud features — gate operation by call and SMS works with no data plan at all

Wiring

Use cable with 4 × 0.25–0.5 mm² conductors. Strip each wire 7–9 mm before inserting into the connector.

Power

Connect V+ and ⏚ (GND) to your gate controller's accessory power output (7–24 Vdc, 12 Vdc recommended). Maximum current draw is 500 mA (briefly, during a call); standby draw is 18–40 mA depending on signal conditions.

Gate Trigger (Relay Output)

Connect OHV to your gate controller's push-button input. The device uses a solid-state relay — it switches the circuit electronically for a brief pulse when the gate is triggered, with no moving parts.

Antenna

Screw the included 4G antenna onto the SMA connector at the top of the board. Hand-tight is sufficient — do not over-tighten.

Mount the antenna vertically for best signal. If the device is inside a metal enclosure, route the antenna cable so the antenna sits outside or on the enclosure lid.

First-Time Setup

1. Insert SIM, attach antenna, wire up.
   See the sections above. Do not power on until the antenna is attached.
2. Power on.
   The device will register on the cellular network automatically. No button press or on-device configuration is required.
3. Claim the device as the owner.
   From the phone number that should permanently manage the device, send this text to the device's SIM number:
   X.SetOwner
   You will receive a reply confirming ownership, along with the current signal strength and connectivity status.
   ⚠ Choose this number carefully — it cannot be changed later by SMS.
   Once set, only this number has admin access to the device. If you ever need to transfer ownership, contact your installer.
4. Add users who can open the gate.
   
   X.AddUser:+381641234567:John
   Replace the number and name with the person's details. You will receive a confirmation back. Names can be up to 16 characters. Phone numbers must be in international format with the + prefix and country code (e.g. +381641234567).
5. Test.
   Call the device from the owner's number. The call is answered and ended immediately — that is expected behavior, not an error. It means the relay fired and the gate should respond within a second.

Opening the Gate

Any approved user (and the owner) can open the gate in three ways:

Managing Users

Owner only

Gate Settings

Owner only

The device name appears in the startup/status message — useful if you manage more than one device. Clear it with X.SetDeviceName: (nothing after the colon).

Checking Activity

Owner only

Forwarding a Message

Owner only

Sends a text from the device's own SIM number to any other number (up to 100 characters). No confirmation is sent back — assume it went through. Any reply to that message arrives at the device and is automatically relayed to you as Message from <number>: …

The number can be a full international number (e.g. +381641234567) or a carrier short code without + (e.g. 1200).

Example: Check prepaid credit on A1 Srbija — send X.Forward:1200:?. A1 replies with the current balance, and the device forwards it to you.

Troubleshooting

Gate doesn't open when I call or text

• Is your number on the approved user list? Only the owner and added users can open the gate (unless "open to everyone" mode is on).
• Is lockout mode currently enabled? It blocks all users except the owner.
• Is the relay pulse long enough for your gate controller? Try X.OnTime:5 and test again.
• Check X.LastGates — did the device log the attempt at all?

Device doesn't respond to texts

• Is the device powered? Check supply wiring and voltage.
• Does the SIM have SMS service and sufficient credit?
• Send X.Signal from the owner's number — if you get a reply, the device is alive; the number you texted from is likely not the owner or an approved user.

Device is powered but won't register on the network

• Is the antenna attached and screwed in firmly?
• Is the SIM seated correctly (gold contacts facing down)?
• Try moving the device somewhere with better signal for initial setup.

I need to transfer ownership to a different phone number

Ownership cannot be changed by SMS once set. Contact your installer.

Technical Specifications

GATE ONE 4G — Full Device Manual