Garmin GDR 66, Инструкция по установке

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GDR 66 Installation Manual Page 4-9
190-00303-24 Revision A
4.5.1.4 Com Remote Transfer
The GDR 66 provides one COM REMOTE TRANSFER* input which allows the COM Emergency State
to be entered or exited. When the GDR 66 enters Emergency State, it automatically switches to AM COM
mode and tunes to the emergency channel, 121.500 MHz. When in Emergency State, the GDR 66 ignores
inputs from the front panel controls for COM selections and cannot be used for digital data link.
The COM REMOTE TRANSFER* input controls Emergency State via one of two modes: “Hold-to-
Acitvate” mode and “On/Off” mode. A GDR 66 aircraft configuration parameter selects the mode as well
as the activation time for Hold-to-Acitvate mode. In Hold-to-Acivate mode, the Emergency State is
entered when the COM REMOTE TRANSFER* input is held active for the configured time, and is exited
immediately when the COM REMOTE TRANSFER* input becomes active after having been inactive. In
On/Off mode, COM REMOTE TRANSFER* acts as an on/off switch for Emergency State, which is
entered immediately when COM REMOTE TRANSFER* becomes active, and is exited immediately
when COM REMOTE TRANSFER* becomes inactive.
Low: 0 VDC < Vin < 3.5 VDC, OR Rin < 375 ohms (active)
High: 8 VDC < Vin < 36 VDC, OR Rin > 100k ohm (inactive)
4.5.2 ACARS/SELCAL
4.5.2.1 SELCAL Audio and ACARS Data Out
The GDR 66 provides one SELCAL audio/ACARS data output that can either be used for SELCAL or
VDL Mode 0 (ARINC 716 Data). The rated output is 2.45 Vrms into a 600 ohm load (10 mWavg). The
gain is adjustable during installation to decrease the output by at least 40 dB to 24.5 mVrms. A gain setting
of -7.0 dB (1.2 Vrms minimum) is recommended. Refer to EQF for certification considerations for this
output.
Table 4-15 Com Remote Transfer
Pin Name Connector Pin I/O
COM REMOTE TRANSFER* P661 12 In
Table 4-16 SELCAL Audio and ACARS Data Out
Pin Name Connector Pin I/O
SELCAL AUDIO AND DATA OUT HI P661 41 Out
SELCAL AUDIO AND DATA OUT LO P661 42 Out
DRAFT