HelixNet Main Stations accept linking as well as two-wire and four-wire optional interface modules offering seamless connectivity to LAN and virtually all common two-wire and four-wire audio systems.
The HLI-4W2 Interface Module provides an easy way to interface common four-wire audio paths such as matrix ports cameras and telephone circuits with a HelixNet Main Station. Each of the two ports employ both transformer and electrical balancing to ensure incoming and outgoing audio paths are free of hum and noise.
HLI-4W2
Technical Specifications
Dimensions
7.36" x 2.24" x 1.54" (187mm x 57mm x 39mm)
Weight
13oz (0.35kg)
Connectors
Intercom Line: (2) RJ-45 (Ethercon)
Four-wire Option Module Inputs
Maximum Level Before Clipping: 18dBu
Nominal Input Level: 0dBu (selectable)
Input Impedance: >= 10K?
The following specified for a route to four-wire output at 0dBu out:
Frequency Response: 20Hz - 10kHz ±3dB
Distortion: <0.2% THD @ 1kHz
Noise: <-65dBu
Four-wire Option Module Outputs
Maximum Level Before Clipping: 18dBu
Nominal Output Level: 0dBu (selectable)
Output Impedance: <= 100?
The following specified for a route from a dynamic headset:
Frequency Response: 300 Hz - 12 kHz ±3dB
Distortion: <0.1% THD @ 1 kHz
Noise: <-55dBu
