Centurion Systems 2-Wire Intercom Kit, Handset and Entry Panel
Centurion Systems 2-wire audio gate intercom kit: white handset with gate release, auxiliary button and gate status LED, plus a 2-button V3 entry panel. Up to 150m on two wires, expandable to 5 units. Power supply not included.
- 2 wiresSpeech, call and gate release
- 150mMaximum bus length
- 5 unitsUp to 2 entry panels
- 12 to 14V DCPower supply not included
Pricing for registered gate motor installers, electricians, security installation companies and building contractors.
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Get a formal quoteThis Centurion Systems intercom system kit is a wired audio intercom for the gate: one white intercom handset for inside the house and one 2-button entry panel (V3) for the gate. The two are joined by just two polarised wires, which carry the speech, the call and the gate release over a run of up to 150m. When a visitor presses the call button, the handset rings; you lift it, talk, and press the gate release button to open the gate. A gate status LED on the handset shows whether the gate is open, moving or closed. The power supply is not included.
What's in the box
- 1 x Centurion Systems intercom handset, white, with cradle
- 1 x Centurion Systems intercom entry panel with 2 call buttons (V3)
Centurion Systems' manual also refers to rawlplugs, the entry panel fixing screw and a cable tie as provided in the kit. Not included: the power supply, the intercom cable and the wiring from the gate release contact to the gate motor.
How the Centurion Systems intercom system works
Every part connects to the same two-wire bus, and the handset and the entry panel can join it at any point along its length. The bus is polarised: if the two wires are swapped the system will not work, but it is not damaged. Each handset has a gate release button for each entry panel, an auxiliary button, an intercom call button and the gate status LED. The gate release is a potential-free normally-open contact at the entry panel, rated 2A at 12V AC/DC, which is wired to the gate motor's trigger input. The auxiliary button closes a second potential-free contact, which can be used for a pedestrian opening or pillar and entrance lights. Lightning and surge protection are built in.
Power: 12V from the gate motor or a 14V adapter
The system runs on 12 to 14V DC, connected at any one component. It can take the 12V battery supply of the gate motor at the entry panel, or Centurion Systems' 14V DC intercom power supply, a mains adapter that plugs into the handset cradle and is sold separately. For a 24V gate motor, Centurion Systems' wiring diagram uses a 24V to 12V DC regulator board. The system draws about 150mA at rest and 200mA at most. Centurion Systems notes that if a 12V motor supply dips as the motor starts while you are talking, the speech can be affected. An optional battery backup keeps the intercom working through a power failure.
Adding handsets and a second entry panel
The kit is the one-to-one starting point. The system takes up to five components in total, with up to two entry panels and two groups of up to three handsets, so you could run four handsets on one entry panel, or three handsets with two entry panels. Handsets in the two groups can call each other. The entry panel can be set to ring all the handsets from either button, or to ring group A from the top button and group B from the bottom one, for example a main house and a cottage. A V3 entry panel works in both modes; an older V2 panel only works alongside a V3 panel set to two-button mode.
Fitting it at the gate
The entry panel goes on a wall next to the gate or on a gooseneck, placed so it does not stick out into the driveway but can still be reached from a car. Centurion Systems rates it IP55 on its website (the manual gives IP56) for -20°C to +50°C, and offers a 304 stainless steel anti-knock shield for extra protection. The handset goes on an inside wall, with the base of the cradle about 1550mm above the floor. The intercom is installed by your installer; Alectra supplies the equipment only.
Key features
- Two wires do it all. One polarised pair carries the speech, the call and the gate release between the handset and the entry panel.
- Gate release on the handset. Press the button to open the gate. The contact at the entry panel is potential-free, normally open, rated 2A at 12V.
- Gate status LED. Shows whether the gate is open, moving or closed, without you having to look outside.
- Auxiliary button. Closes a second contact for a pedestrian opening or pillar and entrance lights.
- Expandable to five units. Add handsets or a second entry panel later: up to two entry panels and two groups of up to three handsets.
- Intercom between handsets. Handsets in the two groups can call each other inside the house.
- One-button or two-button calling. Ring all handsets from either button, or a separate handset group from each button.
- Lightning and surge protection. Built in as standard.
- Runs off the gate motor. 12 to 14V DC from a 12V gate motor battery supply or a 14V mains adapter, with optional battery backup.
Specifications
| Model | Centurion Systems Intercom System (intercom handset and intercom entry panel) |
|---|---|
| In the kit | 1 white intercom handset with cradle, 1 entry panel with 2 call buttons (V3) |
| Type | Wired audio intercom (no video) |
| Wiring | Two common polarised wires for speech, call and lock release |
| Maximum bus length | 150m |
| Wire size | 0.2 to 0.8mm², depending on the distance and where the power is connected (see the manual's chart) |
| Supply voltage | 12 to 14V DC at any one component (14V DC when powering at a handset) |
| Current draw | About 150mA at rest, 200mA maximum |
| Gate release | Potential-free normally-open contact at the entry panel, 2A at 12V AC/DC |
| Auxiliary contact | Potential-free normally-open, separate wiring |
| Handset controls | Gate release per entry panel, auxiliary button, intercom call button, gate status LED |
| Entry panel | 2 call buttons with backlit labels; one-button or two-button mode |
| Call confirmation | Yes, at the entry panel |
| Speech volume | Adjustable at each entry panel and handset |
| Expansion | Up to 5 components: up to 2 entry panels, 2 handset groups of up to 3 handsets |
| Protection | IP55 (Centurion Systems website and 2024 catalogue; the manual and brochure give IP56) |
| Operating temperature | -20°C to +50°C |
| Humidity | 0 to 90%, non-condensing |
| Surge protection | Built-in lightning and surge protection |
| Sold as | 1 kit (handset and 2-button entry panel; power supply not included) |
Not in the box
- Power supply (Centurion Systems 14V intercom power supply, sold separately, or the gate motor's 12V supply)
- Intercom cable
- Gate release wiring to the gate motor
- 24V to 12V regulator board for 24V gate motors
- Gooseneck and anti-knock shield
- Extra handsets or a second entry panel
Questions people ask
Yes. This 2-wire gate intercom used to be sold under that name. Centurion Systems now sells it as the Centurion Systems Intercom System: an intercom handset and an intercom entry panel.
No. Power it from the 12V battery supply of the gate motor at the entry panel, or with the Centurion Systems 14V intercom power supply, which plugs into a handset cradle and is sold separately.
The two-wire bus can be up to 150m long. Longer runs need thicker wire: Centurion Systems' chart gives 0.2 to 0.8mm², depending on the distance and where the power is connected.
Yes. The system takes up to five components, with up to two entry panels and two groups of up to three handsets, for example four handsets on one entry panel.
Yes. The gate release button on the handset closes a potential-free contact at the entry panel, which your installer wires to the gate motor's trigger input.
No. It is an audio intercom: you hear and talk to the visitor, but there is no camera or screen.
No, the handset is wired in the house. To answer the gate on your cellphone from anywhere, look at the Centurion Systems G-Speak Ultra 4G GSM intercom kit.
No. Alectra supplies the equipment only. Centurion Systems says installation, repair and service work must be done by a suitably qualified person, so your installer runs the cable and wires it to the gate motor.
Need it fitted? Alectra Solutions supplies product only. Find a certified Centurion Systems installer at myinstaller.co.za.