User's Manual

SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
eNfusion® HSD-440 Mark 2 Terminal
23-15-30 6-14
3 JUN 10
(2) Configuring the Secondary IRS
You can configure the type of equipment that provides input to the secondary IRS
(IRS #2). The available options are:
• Not installed—default
•Inertial
• AES ID
•GNSS
• Hybrid
The secondary IRS parameter is in the secure ORT.
To configure the secondary IRS type:
1. In the list of ORT parameters, type the number next to the SECONDARY IRS
TYPE parameter, and then press ENTER.
2. At the prompt, type 0, 1, 2, 3, or 4, and then press ENTER, where:
• 0—NOT INSTALLED (default)
• 1—INERTIAL
• 2—AES ID
•3—GNSS
• 4—HYBRID
The default is Not Installed.
(3) Configuring the Secondary IRS Input Speed
You can set the receive data rate for the secondary IRS ARINC 429 bus. This
parameter is in the secure ORT.
To set the secondary IRS input speed:
1. In the list of ORT parameters, type the number next to the SECONDARY IRS
INPUT SPEED SELECT parameter, and then press ENTER.
2. To set the IRS ARINC 429 bus data receive speed rate to high rate, type 1, or
to set the bus speed to low rate, type 0, and then press ENTER.
The default speed is high rate.
(4) Configuring GNSS Equipment
You can enable and disable the GPS protection algorithm depending on the
GPS/GLONASS equipment installed in the aircraft. The available options are:
•None
• GPS—default
• GPS Augmented by GLONASS
The parameter for GNSS equipment is in the secure ORT.