Description
The 3228V vandal-proof analog station port intercom is UL/CSA and FCC certified. This doorphone kit includes a controller, vandal proof intercom station, a surface mount bracket for wall mounting, tamper-proof screwdriver and 24V power supply. The intercom station can also be flush mounted into a double gang box (not included). Mounting gaskets are also included in the kit for installing the intercom in any outdoor environment.
How the Algo Analog Station Port Intercom Works
Secure Door / Gate Access Control
A controller + intercom station are two components of the 3228V doorphone kit. The controller provides the telephone connection and the relay for door / gate access control. As the controller is generally located inside the premise, the 3228V is a secure solution in the event there is tampering of the public-facing intercom station. The access control relay is in no way exposed, and unauthorized entry to the building is prevented.
The 3228V access control relay can connect to any type of industry standard door strike, gate activation system or access / security control panel. A 30V 1A normally open or normally closed relay is available from the controller for this purpose. A door strike is not included with the 3228V doorphone kit.
Generally it is best the strike power be provided using the manufacturer’s power supply, however, the 3228V doorphone can provide 24V DC strike power (current limited to 300mA). The power supply is earth grounded to meet safety and regulatory requirements when extending the doorphone outside the perimeter of the building to a gate.
Auxiliary Low Voltage Inputs & Outputs
A number of low voltage programmable inputs and outputs available from the controller and intercom station. Common uses for the auxiliary relays include configuring an input to use an existing doorbell, for example, or a relay output to activate a loud ringer or strobe light for intercom call telephone ring alerting. A door sensor input is also available for configuration, including the option to activate an alarm if the door remains open for an extended period (e.g., tailgating, leaving the door ajar).
Legacy Analog Doorphone Retrofit
The 3228V is ideally suited as retrofit solution of an existing analog intercom. It is often the case that 24 gauge twisted pair wiring is used with legacy intercom systems. This wiring can be re-used to connect the 3228V controller to the Algo intercom station, thereby saving time and money in not having to re-wire. Twisted pair wiring can also be used to wire the relay for door / gate control. Note: The controller can only be wired to the Algo intercom station in the 3228V kit.
Benefits of the Algo Vandal-Proof Analog Station Port Intercom
Features