Document Number:
MAN – FD320CV-X
Rev:
A
Revision Date:
09/23/2019
Page 12 of 20
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2019 FDS Avionics Corp.
All Rights Reserved.
TECHNICAL SUPPORT
470-239-7421 or FDSAvionics.com
RS-485 Wiring and RS-485 Network
Shielded twisted-pair 22 AWG wire is recommended for RS-485 wiring.
If there is more than one monitor connected to the aircraft’s RS-485 controller system, then
it is strongly recommended to connect the system in series or daisy-chain and terminate the
twisted pairs with a 120Ω resistor. This configuration improves the reliability of the system.
It is highly recommended to use 22 AWG twisted pairs for runs longer than 20 feet.
Connect all RS-485A pins together, all RS-485B pins together.
Setting ID Numbers for Multiple Monitors
When two or more monitors are installed on the same RS-485 Network, an ID number must
be assigned to each monitor. To assign an ID:
• Press the menu button (either on the monitor or remote control)
• Navigate to the “image” tab
• Navigate down to “set ID”
• Press left or right to assign a number to the monitor
• Press menu twice to exit
