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Category: Intercom Systems
Brand: Trilogy
Code: Gemini

Trilogy’s pioneering Gemini ‘Distributed Matrix’ Intercom addresses the demanding needs of today’s broadcast and professional media industries for an expandable structure to cope as requirements change, a wide choice of operator panels to suit both application and user, simple installation over any distance and absolute reliability. In meeting these needs, Gemini provides a unique intercom solution that also combines a programme quality audio network with IP connectivity.

Gemini’s architecture is built on the concept of a de-centralised, scalable matrix platform with the significant advantages of IP capability, to deliver real time, high quality voice solutions across local or global networks. Combining intuitive user panel operation for IP-enabled, as well as traditional panels, Gemini is undoubtedly the most flexible intercom system available today.

Gemini’s unique design is suited to any Broadcast application ranging from a single studio to the largest media complex. By using Gemini’s seamless IP interface, the intercom network can be expanded almost limitlessly both in terms of system size and geographic location via LAN, WAN or Satellite.

A single Gemini matrix accommodates up to 32 ports, each freely assignable for use with control panels or 4 wires, whilst the IP gateway adds provision to stream bi-directional audio traffic over a further 32 IP channels.

A Gemini matrix frame supports up to 4 interface / expansion boards, each handling 8 ports of audio and / or data in various signal formats to suit installation requirements. These option boards are hot-pluggable and may be used in any combination.

The audio expansion board is used for connection of control panels over Cat 5 / 6 cabling and for 4 wire audio connections to other devices, including wired and wireless beltpacks , In Ear Monitoring systems, CCUs and audio consoles.

Where interconnection of control panels over a network is desired, an IP interface board supports up to 8 IP enabled panels via any conventional LAN infrastructure.

Gemini Matrix Rear View 

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Ports and IO

Number of Ports 8 – 32 per Gemini matrix, depending on configuration
Camera Mix/DA 6 channel, 4 wire
Front Panel Headset XLR5 socket. Microphone type: dynamic.
Gemini Network Up to 8 matrices per ring, giving a maximum of 256 ports
IP Channels 32 channels when DSP option is fitted
GPI – Inputs (per matrix) / GPI – Outputs (per matrix) 16 closure to ground / 16 opto-isolated


Port Type 4 wire electronically balanced
Frequency Response -3 dB @ 20 Hz and 20 kHz
Input Gain Control +12 dBu to -12 dBu (1db step resolution) via Gateway
Output Gain Control +12 dBu to -40dBu (1db step resolution) via Gateway
Maximum Input Level / Maximum Output Level +20 dBu / +20 dBu
Crosstalk < –95 dBu @ 1 kHz
Noise < –62 dBu ITU-R-468 weighted / < –69 dBu ITU-R-468 unweighted
Distortion <0.025%, 0 dBu at 1 kHz
Input Impedance / Output Impedance 24 kΩ / 50 Ω
Sample Rate 48 kHz


HSL Data Rate 270 Mb/s
Audio Delay 1.2 ms (typical)
Maximum Cable Run 100 m between Gemini matrices


Dimensions 483(w) x 89(h) x 375(d) mm (19 inch x 2RU)
Operating Temperature 0°C to +50°C
Approvals Emissions - EN55022, Immunity - EN55024, Safety - EN60950 CSA UL
Power (single or optional dual) Auto sensing 90 - 264 V AC, 47-63 Hz
Power Consumption < 65 W
  • Distributed matrix architecture improves resilience and reduces installation costs
  • 256 x 256 port full access audio network with full programme quality audio performance
  • Dual redundant ring system for ultimate system dependability
  • Integrated IP capability provides almost limitless expansion both in terms of system size and geographic location
  • Optional IP panel connectivity allows for flexibility in any installation
  • Gateway Configuration Editor allows multiple users to implement on or off-line system changes over an IP network
  • Touchscreen front panel and browser access allow for set-up, monitoring and verification of system status
  • Seamless integration with SIP/VoIP networks
  • A wide range of lever key, pushbutton and Touchscreen control panels is available to suit any application
  • Fully compatible with Trilogy’s Commander, Orator and Mercury intercom systems

Gemini Overview
  • Gemini