Alpha NC506ES 4 Relay Remote Receiver Unit
- Non-returnable or refundable

The NC506ES from Alpha is designed to allow users of the Tek-CARE®500 (TC500) Wireless Emergency Call System to connect external dome lamps and dialers to the system. This provides for an alternate annunciation path, in addition to the normal TC500 screen. The NC506ES is not dependent upon the Tek-CARE®500's master station computer. It features 4 separate, dry-contact outputs that can be programmed for activation by up to 4 transmitters. The case has built-in tamper detection outputs for connection to an external alarm system. All dry contact outputs are individually configurable for latching, follower or momentary activation modes. The unit is designed for indoor use only, and cable access and connections are hidden. The face of the unit features a clean appearance with visual indication of the status. The SF501ES and SF502ES transmitters can be used with the NC506ES to trigger an external dialer, but these momentary transmitters do not support dome light annunciation.
Alpha NC506ES Relay Receiver Features
- 4 dry-contact Form-C outputs: Allows connection to multiple external devices for enhanced system versatility.
- Screw terminal connections: Ensures secure and reliable wiring for a stable performance.
- Wiring access via hidden port: Provides a clean installation with minimal visible cabling.
- Built-in tamper switch: Enhances security by connecting to an external alarm system, alerting for unauthorized access.
- LEDs display current status of transmitters: Offers instant visual feedback on transmitter activity, ensuring awareness at a glance.
- Functions independently of Tek-CARE®500: Operates without reliance on the master station computer for increased reliability.
- Clean appearance for interior mounting: Blends seamlessly into indoor environments with a professional look.
Alpha NC506ES Detailed Specifications
| Feature | Details |
|---|---|
| Model | NC506ES |
| Type | 4 Relay Remote Receiver Unit |
| Outputs | 4 dry-contact Form-C |
| Connections | Screw terminal |
| Activation Modes | Latching, follower, momentary |
| Tamper Detection | Built-in switch for external alarm systems |
| LED Indicators | Displays status of transmitters |
| Operating Environment | Indoor use only |
| Compatibility | SF501ES and SF502ES transmitters |
| Installation | Hidden wiring access for a clean look |



