Description
Add network-controlled relay switching and sensor monitoring to any installation — the Viking RC-4A is a 4-relay network controller that lets you activate door strikes, gates, locks, and other equipment from anywhere on the network, or use it as a secure remote relay for Viking VoIP entry phones.
Each of the four relays can be configured as a toggle or a timed closure from 1 to 99 seconds — ideal for door strikes, cameras, lighting, or any device that needs a momentary or sustained contact. Four sensor inputs monitor external states and trigger email or text message notifications when they change — useful for door contact monitoring, temperature alerts, or tamper detection. A ready-to-use web interface provides direct browser-based control with encrypted login and two access levels: Administrator (full access) and Guest (programmable limits). Remote interaction lets sensor changes on one RC-4A trigger relay activation on a second RC-4A across the network — enabling coordinated cross-site automation.
Our Expert Take: The RC-4A is particularly powerful as a secure remote relay controller for Viking VoIP entry phones — it extends relay control well beyond the phone's onboard contacts, enabling complex access control scenarios across multiple entry points. It's also a standalone automation controller for smaller facilities that need network-managed switching without a full access control platform.
Key Features
- 4 independent SPDT relay contacts — toggle or timed (1–99 seconds)
- 4 sensor inputs with email or text notification on state change
- Ready-to-use web interface for browser-based control
- Encrypted login; two access levels (Administrator and Guest)
- Secure remote relay for Viking VoIP series phones
- Cross-unit remote interaction: sensor on one RC-4A triggers relay on another
- Terminal strip connections for all relays and sensor inputs
- Network connected; programmable relay names and input names
Technical Specifications
- Relays: 4 SPDT; toggle or timed (1–99 seconds)
- Sensor Inputs: 4
- Notifications: Email and text message
- Interface: Encrypted web browser control
- Access Levels: Administrator and Guest