This glossary defines common terminology used in SIP intercom, community access control and building security. It serves as a quick reference for property managers, system integrators and procurement teams.

Access Control Reader

Definition: A hardware device that reads credentials such as IC cards, QR codes or biometrics and sends verification signals to the access control platform. Also called a reader.

Biometric Access

Definition: Authentication based on unique physical features including palm vein, fingerprint or face recognition, which cannot be easily copied or shared.

Door Station

Definition: Outdoor intercom terminal installed at unit doors or gateways, for visitor call, access unlock and audio/video communication with residents and property staff.

SIP Intercom

Definition: Audio or video calling system based on SIP protocol, used for communication between visitors, residents and property management.

Palm Vein Recognition

Definition: Biometric verification technology that identifies users by vein patterns inside the palm; contactless, hygienic and high-security credential type.

PoE (Power over Ethernet)

Definition: A networking standard delivering electrical power and network data over one single Ethernet cable. Widely used for door stations and access readers.

SIP (Session Initiation Protocol)

Definition: An open communication protocol for voice, video calls and intercom. Thinmoo door stations and intercom devices are SIP-compliant.

Wiegand

Definition: A widely adopted access control communication protocol to send credential data between readers and access controllers. Common for retrofitting legacy systems.

Wireless Retrofit Access Control

Definition: Wireless access devices using 4G, LoRa or Wi-Fi, designed for old building renovation without laying new network cables.

Central Management Platform

Definition: Cloud or local software for property teams to manage user permissions, unlock logs, device status and access records in bulk.