Honeywell International Inc. RTA-50D Manuale Utente
MAINTENANCE MANUAL
965-1696
Table 2001. RTA-50D VDR Communications Transceiver Connector Determinants (Cont)
Pin No.
Type
Signal Name
Function
MPA15
Output
Audio/side-tone output
(high)
(high)
An analog output for receiver audio during receive
mode and side-tone audio during voice transmit
modes. Required for ARINC 716 VHF communication
only.
mode and side-tone audio during voice transmit
modes. Required for ARINC 716 VHF communication
only.
MPB15
Output
Audio/side-tone output
(low)
(low)
An analog output for receiver audio during receive
mode and side-tone audio during voice transmit
modes. Required for ARINC 716 VHF communication
only.
mode and side-tone audio during voice transmit
modes. Required for ARINC 716 VHF communication
only.
MPC15
Output
Muting
An optional two wire discrete output to provide a switch
closure internal to the VHF communication for external
system muting applications during transmit modes.
Open = muting off.
Ground = muting on.
Required for ARINC 716 VHF communication only.
closure internal to the VHF communication for external
system muting applications during transmit modes.
Open = muting off.
Ground = muting on.
Required for ARINC 716 VHF communication only.
MPD15
NA
Muting return
An optional two wire discrete output to provide a switch
closure internal to the VHF communication for external
system muting applications during transmit modes.
Open = muting off.
Ground = muting on.
Required for ARINC 716 VHF communication only.
closure internal to the VHF communication for external
system muting applications during transmit modes.
Open = muting off.
Ground = muting on.
Required for ARINC 716 VHF communication only.
BP1
Input
/output
/output
Antenna RF input
Required for both ARINC 716 VHF communication and
ARINC 750 VDR; functions are identical.
ARINC 750 VDR; functions are identical.
BP2
Input
DC power input +27.5
VDC
VDC
Required for both ARINC 716 VHF communication and
ARINC 750 VDR; functions are identical.
ARINC 750 VDR; functions are identical.
BP3
NA
Spare
NA
BP4
NA
DC power ground
Required for both ARINC 716 VHF communication and
ARINC 750 VDR; functions are identical.
ARINC 750 VDR; functions are identical.
BP5
NA
Spare
NA
(2)
Reserved and Spare Wires
(a)
It is not necessary to connect all wires. Wires reserved for optional functions can be
selected, which the system does not contain, and deleted. Also decide which future
spare wires to include in the installation. The reserved and spare wires are identified in
Table 2001 and in Figure 2001.
selected, which the system does not contain, and deleted. Also decide which future
spare wires to include in the installation. The reserved and spare wires are identified in
Table 2001 and in Figure 2001.
D.
Installation of System (Subtask 23-20-59-000-008-A01)
(1)
The RTA-50D VDR is secured in the airframe with 3 MCU unit mounts. The mounts are
designed to be removed without rewiring the connectors. Follow the equipment manufacturer’s
installation instructions to install the mount into the airframe.
designed to be removed without rewiring the connectors. Follow the equipment manufacturer’s
installation instructions to install the mount into the airframe.
(2)
To wire the mounts into the system, perform the steps that follow.
(a)
Remove the mount connector cover and connector plate assembly.
EFFECTIVITY
ALL
23-20-59
Page 2008
1 Mar 2011
© Honeywell International Inc. Do not copy without express permission of Honeywell.