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Commander Installation Guide
Trilogy Communications Limited Page 77 of 81
Issue 9
9. SPECIFICATION
9.1 GENERAL
Max. Number of Ports 384, 96 per 6U Frame, expandable in 6 port units
9.2 MATRIX AUDIO SPECIFICATION (USING 500-06-02 MAT
RIX CARDS)
Port Type 4 wire electronically balanced
Frequency Response -3dB @ 25Hz and 15.5kHz
Nominal Gain 0dB ± 1dB
Gain Adjustment Range +12dB / -37dB from PathFinder
Maximum Input Level +20dBu
Crosstalk < -60dB worst case
Noise < -55dBu CCIR weighted, quasi-peak
Distortion < 0.2% THD @ 0dB gain
Input Impedance ~10kR
Output Impedance Low (<20R)
9.3 REAL TIME PERFORMANCE
Transmission time delay <50ms (defined as time taken from a key press to the audio
reaching the destination). Based on statistical analysis of the likely number of keys presses
etc. at any given instant.
9.4 PANELS
Panel Communication Balanced RS422 at 230.4 kbaud
Power See individual sections
Maximum cable run >600m.
Connection to Matrix 4 twisted pair cable. STP or FTP only:
L/S Volume Control Max attenuation or hold off adjustable from -
20 to -76dB in PathFinder
Microphone amplifier gain adjustment +14 to -16dB from PathFinder
Loudspeaker amplifier Nominal 5W into 8R