Aiphone GT-RY - External Signaling/Option Relay

The GT-RY is an external signaling / option relay for Aiphone GT entry systems. It gives you a normally open dry contact closure when a call comes in at a tenant station, so you can trigger something outside the intercom itself, such as an annunciator, a chime extension, or a signal to another system. It can also switch on an external light at the entrance station while a tenant station is being called.

The relay alone is not enough. Using the GT-RY requires the option connector supplied with the tenant station, so the tenant station you are tying into has to have that connector available. Plan the order around the tenant station side as well as the relay itself.

Think of the GT-RY as a signaling relay, not a door release module. What it provides is a normally open dry contact on call-in and a contact to switch an external entrance light. If you need general-purpose relay logic or timed door control in an access system, look at a dedicated relay or timer board such as the Securitron RB-4 relay board, the Securitron RLP relay logic pack, or the Securitron TM-2 Time Master II multi-function timer.

No. The Aiphone GT-RY is a system-specific external signaling and option relay that provides a normally open dry contact closure on call-in at a GT tenant station, and it requires the option connector supplied with that tenant station to work. The Securitron RB-4 is a general-purpose relay board from the RB-4 series with no tie into the GT tenant station option connector, so it cannot pick up the call-in event on its own. Use the RB-4 where you already have a dry contact or voltage trigger to multiply or isolate, and use the GT-RY to create that call-in contact in the first place.

The Aiphone GT-RY provides a contact to turn on an external light at the entrance station when a tenant station is called, but it is a signaling relay rather than a timing device. For a held or delayed output, pair it with the Securitron TM-2 Time Master II, a multi-function timer in the TM-2 series, and let the GT-RY contact trigger the timer, which then drives the light circuit. That keeps the intercom side on the Aiphone part and puts the duration control on dedicated timing hardware.

Yes, that is one of the common uses. Because the relay closes a normally open dry contact when a call comes in at the tenant station, you can wire that contact to an externally powered annunciator, strobe, or auxiliary chime. The relay supplies the contact only, so the signaling device needs its own power source.

The relay works off the option connector on a tenant station, so it is a per-station device rather than one box for the whole building. Count the tenant units that actually need external signaling or entrance lighting and order a relay for each, then confirm each of those stations has its option connector.

They sit at different points in the circuit. The GT-RY is an Aiphone accessory relay that derives a dry contact from a GT tenant station call-in through the station's option connector, so its job is turning an intercom event into a usable contact. The Securitron RLP is a relay logic pack from the RLP series used to build switching logic from contacts you already have in the access control circuit. On a job that needs both, the GT-RY creates the signal and the RLP acts on it.

Yes, that is the intended use. The Aiphone GT-RY is a commercial electronic accessory that gives a normally open dry contact closure when a call comes in at a tenant station, which is exactly what a remote chime, annunciator or signal light needs. The tenant station's option connector must be present to land the GT-RY. If you then need that single contact to feed several separate devices on different circuits, add a general-purpose board such as the Securitron RB-4 of the RB-4 series downstream of it.

It is a commercial-grade accessory, built for the Aiphone GT multi-tenant entry platform used in apartment buildings, condos, and commercial lobbies. A single residence with a one-to-one door station has no tenant-station option connector to feed it, which is what the relay needs to work.

Aiphone publishes a GT System brochure covering the platform the GT-RY plugs into, hosted at https://zensupply.com/content/pdf/aiphone/gt-system-brochure.pdf. Use it to confirm which tenant and entrance stations are in the system before you add the relay.

There is a single model, GT-RY, made by Aiphone. There are no finish, voltage, or handing options to pick, so specifying the part number is the whole order decision on this one.