User's Manual

Page 3–45
18 September 2007
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
eNfusion™ HSD-128 High-speed Data Terminal
• ISDN, Ethernet (if supported with an installed Data I/O Type 2 Card), and/or
MPDS (RS-232) interface wiring
• System and Data I/O Configuration lines
• Optional maintenance and LED remote interfaces
(b) Rockwell Collins Requirements for Cooperative Operation with SAT-906
At the time of printing, the SAT-906 SDU needs, at a minimum, core software –
068, that includes service bulletins 31 and 501, which changes the unit to a –
150 designation with wiring SDU pin TP12E grounded to indicate that the SDU
is operating with an HSD.
The Collins Owner Requirements Table (ORT) must updated with the latest
version, ORT generation tool.
(c) Maintenance Port Interface – Cooperative Mode
The HSD transceiver has an RS-232 Maintenance Port interface that provides
access to a maintenance utility program for data loading, system monitoring and
testing purposes.
Access to the HSD Maintenance Utility Program is achieved by connecting an
RS-232, VT-100 terminal (PC or Laptop operating a terminal emulation program)
to the RS-232 Maintenance Port.
The HSD Maintenance port is available at the front of the HSD and at the rear
ARINC 600 connector. Connection on the front of the HSD is accessible via a
DB25S connector for local maintenance of the unit. Remote access is provided
for cases where local access is unavailable. For remote access, install an
accessible DB9S connector in the cabin area.
Note: The front panel and remote connections to the maintenance port cannot
be used simultaneously.
Refer to "Test and Fault Isolation" on page 4-1 for information on how to connect
and use the maintenance port—including, equipment requirements, connection
and cabling requirements, software loading instructions, and configuration
details.
(d) Antenna Subsystem RF Interface – Cooperative Mode
Several external RF parameters (such as cable losses and antenna gain), that
must be delimited to ensure proper operation, dictate the HSD performance
requirements.
Table 3–23 defines these parameters and their expected values.
Table 3–23. RF Parameters Definition – Cooperative Mode
Parameter Min. Value (dB) Max. Value (dB)
Antenna Gain 8 17
Antenna—DLNA Loss 0.1 0.3
DLNA Gain 53 60
DLNA Noise Figure 1.5 1.8
DLNA—HSD (Rx) Loss 6 25