N
KHF 1050 SYSTEM INSTALLATION MANUAL
Page 2033
Revison 2 23-10-09 Apr/2006
5.D. Strapping Options
5.D.(1) KRX 1053 Receiver/Exciter Strapping Options
NOTE: Asserted = GND, Not Asserted = OPEN
Refer to “Figure 2029 - KHF 1050 HF System Interconnect” for KRX 1053
strapping options.
5.D.(1)(a) Power ON/OFF Control - (J10531-23) PWR CONT
An external controller turns on the KRX 1053 Receiver/Exciter by asserting
(grounding) the POWER ON/OFF CONTROL discrete input. In an
installation in which LRU power is to be controlled by a radio master switch
or relay, this input may be permanently strapped to ground. Also see
Paragraph “4.A.(1) System Power UP” .
This input is continuously read.
5.D.(1)(b) Controller Select - (J10531-57) CONT SEL
When set up to operate in the continuous TUNING MODE, the
CONTROLLER SELECT discrete determines which HF controller input is
active.
The KRX 1053 Receiver/Exciter accepts tuning and control data from the
HF CONTROLLER INPUT #1 when the CONTROLLER SELECT and
TUNING MODE discrete inputs are not asserted.
The KRX 1053 Receiver/Exciter accepts tuning and control data from the
HF CONTROLLER INPUT #2 when the CONTROLLER SELECT discrete
input is asserted and the TUNING MODE discrete input is not asserted.
This input is continuously read.
5.D.(1)(c) Burst/Continuous Tuning Mode - (J10531-15) TUNE MODE
When the BURST/CONTINUOUS TUNING MODE discrete input is not
asserted, the KRX 1053 Receiver/Exciter operates with continuous ARINC
429 tuning and mode control data and the CONTROLLER SELECT discrete
input determines the active controller input.
NOTE: Continuous mode not currently available.
To Next Page
Loading...
