The other RMPs take into account this selection through their
dialogue buses.
If AM mode is not selected , the default mode is USB.
4 ON/OFF latching switch
_ The power supply of each RMP can be switched off by means of the ON/OFF latching switch (OFF position). When the RMP1 or the RMP2 is off, it becomes transparent for the RMP3. The de-activated RMP then directly connects (by means of internal relays) the RMP3 communication buses to the VHF and HF transceivers.
(b) Radio-Navigation Back-Up Mode
1 Radio-navigation back-up mode selection
_
**ON A/C 001-049, 051-099, 101-105, 151-199, 201-217,
(Ref. Fig. 008)
R **ON A/C 106-149, 218-299, 301-399, 401-499,
(Ref. Fig. 008A)
**ON A/C ALL
It is possible to select this mode when you press the NAV pushbutton switch (protected by a grid-type guard to avoid unwanted selections). The selection is accompanied by a selection feedback. This selection has no effect on the display (the same radio communication transceiver remains selected) but the values on the RMP radio-navigation output bus are modified. These values are no longer the values delivered by the FMGC but those memorized by the RMP (i.e. values previously selected in radio-navigation back-up mode). It is not possible to select radio-navigation equipment unless the radio-navigation back-up mode has been previously selected. The selection of this mode is possible only on the RMP1 and the RMP2.
1EFF : ALL 1 23-13-00Page 19 1 1 Aug 01/05 1 1 1CES 1
RMP - Frequency and Course Selection for VOR and ILS
Figure 008
R 1EFF : 001-049, 051-099, 101-105, 151-199, 1 23-13-00Page 20 1201-217, 1May 01/05 1 1 1CES 1
RMP - Frequency and Course Selection for VOR and ILS
Figure 008A
R 1EFF : 106-149, 218-299, 301-399, 401-499, 1 23-13-00Page 21 1 1 Aug 01/05 1 1 1CES 1
2 Frequency and course selection for radio navigation equipment
_ The selection of a radio navigation system is accompanied by a selection feedback. The frequency previously selected in radio-navigation back-up mode for this system is displayed. For the ADF, there is only a selection of frequency. This selection is the same as for the VHF and HF transceivers (if installed) (Ref. para. 5. (3) (a) 1_ Frequency selection). If ADF 1 is not installed, a hard pin-prog on the RMP will inform this one about "NO ADF" configuration. This programming must be done on all RMPs. Then the ADF keys shall not be usable on the RMP 1. In addition a label 040 will be generated by the RMP to inform accordingly the CFDIU and other peripherals. For the VOR and the ILS, there is a selection of frequency and course as described in figure
**ON A/C 001-049, 051-099, 101-105, 151-199, 201-217,
(Ref. Fig. 008)
R **ON A/C 106-149, 218-299, 301-399, 401-499,
(Ref. Fig. 008A)
**ON A/C ALL
There is no selection for the DME : the DME receives the VOR and ILS frequencies from the RMP with the corresponding label. The DME then operates with the DME frequencies associated with the VOR and ILS frequencies.
3 BFO mode selection
_ A BFO pushbutton switch with selection feedback enables the selection of the BFO mode (Beat Frequency Oscillator) for the ADF system. This pushbutton switch is inoperative unless the ADF has been previously selected. This selection is memorized when another system is selected.
4 Frequency selection for radio communication transceivers
_ In radio-navigation back-up mode, the radio-communication systems can be selected as in normal mode.
1EFF : ALL 1 23-13-00Page 22 1 1 Aug 01/05 1 1 1CES 1 Transition from a radio-navigation system to a radio-communication system does not require de-activation of the back-up mode. When a radio navigation system is selected, the SEL indicator light continues to indicate the configurations described in paragraph 5. (3) (a) 2_ SEL indicator light.
6. Operation
_________
The RMPs have two modes of operation:
-
The normal mode
-
The radio-navigation back-up mode.
A.
Normal Mode
(Ref. Fig. 009)
**ON A/C 001-049, 101-105, 151-199,
In normal mode, the RMPs control the frequencies of the VHF transceivers.
R **ON A/C 051-099, 106-149, 201-299, 301-399, 401-499,
In normal mode, the RMPs control the frequencies of the VHF and HF transceivers.
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