Gemini Options and Specifications

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

Audio
Performance

 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

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

Mechanical

 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
 

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