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Installation Manual
Electrical and Sensor Interfaces
P/N 600-00175-000 Rev 04
- 16 -
■
For 14 vdc A/C, use 14 to 28 vdc converter (KGS Electronics RB-125, Ameri-King AK550-6 or
similar with TSO-C71, output 5 A (EX500), 3 A (EX600) min. @ 28 vdc.)
2.
Dimming
—P2- input: use 22 AWG, connect to a/c instrument dimming bus. Supports any range
0-28 vdc. Connection to dimming-bus ground reference required.
3.
ARINC 429
—P2- wire: use 22 AWG twisted shielded pair, MS22759/18-22-2 or equivalent.
Connect shield to P2 connector metallic backshell grounding screw with solder or crimp ring
terminal.
4.
ARINC 453
—P2- wire: use 22 AWG twisted double shielded pair (Quadrax), (Bendix/King p/n 024-
00064-0000) or equivalent. Connect outer shield to P2 connector metallic backshell grounding
screw with solder or crimp terminal ring. Connect inner and outer shield to sensor connector
metallic backshell grounding screw with solder or crimp terminal ring.
5.
RS-232
—P2- wire: use 22 AWG shielded triple, MS22759/18-22-3 or equivalent. Connect a
dedicated RS-232 signal ground from the sensor to the MFD. Connect shield to P2 connector
metallic backshell grounding screw with solder or crimp ring terminal.
6.
Synchro input
—P2- wire:
■
Use 22 AWG shielded double, MS22759/18-22-2 or equivalent, for REF HI and REF LO.
■
Use 22 AWG shielded triple, MS27500/18-22-3 or equivalent, for X/Y/Z.
■
Connect shield to P2 connector metallic backshell grounding screw with solder or crimp ring
terminal.
7.
Synchro Valid
—Use 22 AWG shielded single, MS22759/18-22-1 or equivalent. Valid low is less
than 1.4 vdc. Valid high is greater than 2.7vdc.
Note:
The Synchro Valid input is optional. If you do not use it, no connection is required. See Section
5.10.2, “Broadcast Datalink Setup” on page 61 for configuration details.
8.
ORBCOMM Two-Way Datalink antenna (EX500 Only)
—J2- coax cable: use M17/128-RG400,
(Thermax/CDT p/n RGS-400) high temperature, 50 ohm, stranded core with 0.038 o.d., or
equivalent. Terminate antenna end with BNC series connector. See mechanical installation notes.
9.
Analog radar
—P1- control and data lines:
■
Use 22 AWG shielded single, MS22759/18-22-1 or equivalent, for trigger and data lines.
■
Use 22 AWG for all others. For the specific radar system, see the appropriate wiring diagram
in Appendix J:
Radar Wiring
, on page 100.
10. Shield terminations
—Place the shield terminations as close to the protected signal wire
terminations as feasible.
4.6.2 Electrical Load Analysis
Prior to installation, perform an electrical load analysis on the aircraft in accordance with AC 43.13-1B,
Chapter 11. Use the following values to support the analysis:
●
28 VDC Nominal Load
—2 A
●
28 VDC Maximum Load
—5 A (EX500), 3 A (EX600)
Ensure that the power input to the EX500/EX600 is circuit-protected in accordance with the guidelines
of AC 43.13-1B, Chapter 11, Section 2.
➥
A 7.5 amp circuit breaker is recommended for use with the EX500.
➥
A 5 amp circuit breaker is recommended for use with the EX600.
Содержание FlightMax EX500
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