Gma 347 Audio Panel; Gia 63W Integrated Avionics Unit (Iau) (Waas Enabled) - Garmin CIRRUS PERSPECTIVE SR20 Line Maintenance Manual

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2.3 GMA 347 AUDIO PANEL
The Garmin GMA 347 is a horizontally oriented panel‐mounted audio control panel and marker
beacon system. The GMA 347 is FAA TSO Authorized to C50c, and C35d Class A.
Warning and alert audio provided by the GMA 347 is received from the GIA 63W Integrated
Avionics Units (IAUs). The GMA 347 communicates with both GIA 63W LRUs using RS‐232.
Software and configuration settings are received through a RS‐232 digital interface with the GIA
63W.
2.4 GIA 63W INTEGRATED AVIONICS UNIT (IAU) (WAAS Enabled)
The GIA 63W is the central 'Integrated Avionics Unit' (IAU) in the Perspective™ system, linking
all LRUs to the PFD and MFD. The GIA 63W contains the following hardware:
• MAIN1 – contains all processor circuitry, digital I/O, 3.3V power supply, and the COM
power supply. The COM and WAAS Module plug directly onto the MAIN1 board.
• COM – 16W communications transceiver.
• GPS ‐ WAAS Module.
• MAIN2 – contains all analog and unique I/O, a power supply for the synchro outputs,
and the MAIN1 power supply with capacitor backup. The NAV receiver plugs directly
onto the MAIN2 board.
• NAV receiver – VOR/LOC (VLOC) and Glideslope receivers.
Cirrus Perspective™ Line Maintenance Manual
190-00920-00
Figure 2‐3. GMA 347 Audio Panel
Figure 2‐4. GIA 63W Integrated Avionics Unit
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