Honeywell MKXXII MK Xxii Egpws Comp uter, MK Xxii Egpws Conf iguration Module, GPS Antenna

Honeywell

MK XXII EGPWS Installation Manual

1.5.1 MK XXII EGPWS Comp uter

The MK XXII EGPWS computer is available under P/N 965-1590-0XX with internal GPS. The MK XXII EGPWS computer is intended for Helicopters and provides a mixture of analog and digital interfaces. The type of supported displays is limited and includes some EFIS displays. The terrain database included with the MK XXII EGPWS computer are North America, South America, Europe, Eastern Europe, Africa, Asia, Pacific, South Pacific, and Middle East regions and are comprises of terrain data (6 arc second where available), all known airports, many heliports and man-made obstacles (North America only).

1.5.2 MK XXII EGPWS Conf iguration Module

The MK XXII EGPWS Configuration Module is available under P/N 700-1710-001 (Included in Installation Kits, see section 1.8). The MK XXII EGPWS uses a Configuration Module installed in the aircraft wiring to store aircraft/EGPWS interface configuration.Specifically, the module comes prewired and replaces part of the backshell of the (P2) connector that plugs into the front of the MK XXII computer. The Configuration Module is read by the EGPWS only during power up. The configuration is copied into Non Volatile Memory (NVM) of the EGPWS. The Configuration Module is programmable via an RS-232 interface with the EGPWS. The contents of the Configuration Module can also be read back via the same RS-232 interface.

1.5.3 GPS Antenna

EGPWS installations using the internal GPS require an active GPS antenna and cabling. The GPS antenna should meet the following qualifications:

Frequency:	1575.42 MHz
Impedance:	50 ohms
Gain:	33dB max, 26.5 dB preferred
Power:	5 VDC
Qualification:	TSO C129 or C129a or C144

The following GPS antennas are found to be compatible with the EGPWS internal GPS card. Other GPS antennas may be found compatible, contact EGPWS engineering for assistance. It is the responsibility of the OEM or owner/operator (and ultimately the regulatory authorities) to assess the antenna acceptance criteria relative to ARINC, MIL, or other specifications.

King KA 91	P/N 071-01545-0200	TSO-C129
King KA 92	P/N 071-01553-0200	TSO-C129
Sensor Systems	P/N S67-1575-52	TSO-C129, ARINC 743A
Sensor Systems	P/N S67-1575-133	TSO-C129a, ARINC 743A

1.5.4 OAT Sensor

The OAT sensor is available from Computer Instruments Corp. (CIC) P/N 05257. The EGPWS uses a separate OAT sensor (Outside Air Temperature) to measure outside air temperature on

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