-
An adapter cable (141MX) and programming-dongle (110MX-A).
-A remote-control panel (RCP) (111MX).
-An antenna (112MX).
-A Mounting bracket (140MX)
**ON A/C 151-199, 211-228, 301-302,
4. Interface_________ (Ref. Fig. 003)
The ELT system has interfaces with:
-
The cockpit to ground-crew call-system (WC) (Ground horn).
-
The annunciator-light test and dimming system (LP).
-
The instrument and panel integral-lighting system (LF).
**ON A/C ALL
5. Component Description
_____________________
A. Megaphone
(Ref. Fig. 004)
The megaphone is held in position in a bracket with a strap/clamp. It is hand-operated, and used to amplify voice communication in an emergency. The megaphone is powered by batteries, which are installed loosely in the handle/housing, or in a cartridge. The polarity indication for the batteries is shown on the housing/cartridge.
If available, installed on the handle/housing are:
-
A volume control knob.
-
A siren/fog horn function.
-
A strap.
B. Flashlight
Hand-held flashlights are installed at different locations in the cabin, for easy use by crew members. You use them if bad light occurs during an on-board emergency. The flashlights are battery operated and you can easily replace the batteries.
C. Crash Axe (Cockpit - 19MM), (Cabin - 7620MM)
The crash axe is used to cut through light structures, panels and windows to get access or exit in an emergency. The insulated handle is resistant to high voltages.
R **ON A/C 001-049, 101-149, 151-199, 201-299, 301-399,
D. Emergency Locator Transmitter (ELT)
(Ref. Fig. 005)
The ELT is kept in a stowage compartment, held in position in a bracket with straps/clamps. It is an automatic buoyant unit with an aluminum-alloy cylindrical housing and includes these components:
-Placards attached to the housing (Nameplate - Operating instruction plate).
-
A transmitter (mercury switch - if installed).
-
A water-activated battery.
-
A self-erecting antenna.
-
A lanyard assembly.
EFF : ALL
25-65-00Page 10
Megaphone - Component Description Figure 004
R EFF : CES ALL 25-65-00 Page 11 May 01/05
ELT - Component Description Figure 005
R EFF : 001-049, 101-149, 151-199, 201-299, 301-399, 25-65-00 Page 12 May 01/05
CES
-A liquid container.
(1) Transmitter (Mercury Switch - if installed)
The transmitter and mercury switch are kept in one half of the housing. This half of the housing is fluorescent RED or international ORANGE, and water-tight. The mercury switch S1 controls the power supply between the battery and the transmitter. The power is supplied only when the ELT is held in a upright position (approx. 70 deg from vertical).
In operation the transmitter sends:
-
A swept-tone-modulated homing-signal simultaneously on frequencies
121.5 MHz (Civil) and 243 MHz (Military).
-
A signal on frequency 406 MHz to the COSPAS-SARSAT satellite system, if a 406 MHz transmitter is installed.
The satellite system transmits the 406 MHz distress signal to a Local User Terminal (LUT), when the LUT is in range. The LUT receiving range is a radius of approximately 2,500 km (1367.00 NM). When the LUT is not in receiving range, the satellite system keeps the distress signal until transmission is possible. The LUT automatically processes the signal to identify and show the position of the aircraft to a radius of approximately 1.8 km (5900.00 ft.). The processed data is transmitted to a Mission Control Center (MCC). The MCC sends the data to an applicable Rescue Coordination Center (RCC), where Search And Rescue (SAR) operations are started. The 121.5 MHz and 243 MHz signals are used to find the aircraft in the final stage of SAR operation.
(2)
Water-Activated Battery
The battery is kept in the other half of the housing and supplies power to the transmitter. The battery operates when fully put in water (salt or fresh) or any other water based fluids (tea, coffee, soup or urine). Holes in the end cover of the battery housing let the water in. The displaced air is removed through vent holes in the top of the battery housing. External test points (3) on the battery housing let you check the battery condition and test the ELT. 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320飞机维护手册 AMM EQUIPMENT/FURNISHINGS 设备4(150)
