Document Number:
MAN
– FD215CV-C-5
Rev:
B
Revision Date:
01/10/2017
Page 6 of 25
©
2017 FDS Avionics Corp.
All Rights Reserved.
TECHNICAL SUPPORT
470-239-7421 or FDSAvioncis.com
Power and Ground Wiring
This is a 28VDC monitor that requires 3 amps of power to operate. To operate properly this
monitor requires an input voltage of 24-29VDC.
The rated current of the equipment and associated voltage drop should be taken into
consideration when selecting wire gauge. The following example is based on an install with a
28VDC power system and a total of 50 feet of wire between the circuit breaker, monitor and
ground.
Example: 22awg wire has 16.2 Ohms per 1000 feet, this equates to .81 Ohms for 50 feet. 3 Amps
of current on .81 Ohms will drop 2.43 Volts.
Resistance of Wire Type M22759/16-**
(** = Gauge)
Gauge (AWG)
OHMS/1000’
24
26.20
22
16.20
20
9.88
16
4.81
12
2.02
10
1.26
8
.70
Also, use short heavy gauge wire and a clean tight connection for ground.
It is the installer's responsibility to understand the product's requirements to install the product
in compliance with industry standards and safety.
