User's Manual

Page 1–39
18 September 2007
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
eNfusion™ HSD-128 High-speed Data Terminal
configured as a single-channel system. Use the HSD maintenance utility
program to configure the EEPROM settings for a single channel card. (Menu
3, press M, select miscellaneous parameter number 10.)
Refer to the system block diagram in Figure 1–12 for Cooperative Mode
system details.
2. Honeywell Combined Mode (HCM) Systems
HSD transceivers installed in Combined Mode configurations operate with
the Honeywell Aero H/H+ MCS 3000/6000 and MCS 4000/7000
Multi-Channel Satellite Communication Systems. The HSD hardware is
installed in the SATCOM HPA equipment position, replacing the Honeywell
HPA.
An external splitter “splits” the antenna RF receive (Rx) path signal to the
HSD and the Aero H/H+ systems. The antenna is controlled by the Aero H/H+
system’s SDU.
This system configuration provides up to two channels of access to
high-speed Swift64 Mobile ISDN or MPDS services as well as the existing
Aero H/H+ communications simultaneously. Swift64 HSD calls proceed even
if an Aero H/H+ incoming or outgoing call is in progress—providing there is
sufficient HPA power available to process all of the calls.
In Combined Mode (HCM) installations, the HSD system provides two
channels of Swift64 data service and Aero H/H+ call capability. Swift64 and
Aero H/H+ calls are possible simultaneously under the following conditions:
• If a Swift64 call is in process and an Aero H/H+ call is initiated, either
incoming or outgoing, the Aero H/H+ call is allowed to proceed;
• If any Aero H/H+ calls are in process, a Swift64 call is allowed to proceed
providing that there is sufficient HPA power available to process both the
Swift64 and Aero H/H+ calls; and,
• If both call types are in process, and system resources become limited
due to dropping antenna gain, Aero H/H+ calls will maintain priority.
Refer to the system block diagram in Figure 1–13 for details.
3. Selective Mode Systems
HSD transceivers installed in Selective Mode configurations operate with an
Aero H/H+ system. The HSD transceiver is installed in the Aero H/H+ HPA
equipment position.
This system configuration provides either one or two channels of Swift64
Mobile ISDN and MPDS high-speed-data communications
OR Aero H/H+
communications. Simultaneous Swift64 and Aero H/H+ calls are not possible.
Swift64 HSD calls are terminated if an Aero H/H+ incoming or outgoing call
is detected by the HSD transceiver allowing the Aero H/H+ call to proceed.
While Aero H/H+ calls are in process, Swift64 HSD calls cannot be initiated.
Refer to the system block diagram in Figure 1–13 for details.