User's Manual

Page 3–61
18 September 2007
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
eNfusion™ HSD-128 High-speed Data Terminal
(b) HSD-128 Transceiver Multi-Channel Configuration Installations
The tables in this section provide all top, middle, and bottom plug, connection
details for Stand-Alone Mode installations for the HSD-128 transceiver—specific
to Multi-Channel HSD configurations.
This section describes the general installation details and external interface
connections that are the same for all operational modes and configurations of
HSD and HSD-X transceivers.
(c) Source/Destination Identification (SDI) – Multi-Channel
Source/Destination Identification (SDI) is provided for the BSU and the HPA as
per ARINC 741 specifications. Pins marked “0” are left open circuit and pins
marked “1” are strapped on the airframe side of the connector to the pin assigned
as “SDI Common” (TP5D). For this High Gain Antenna (HGA) HPA application,
pin TP5B (“1”) should be strapped and TP5A (“0”) should be left open.
Note: The logic for the SDI/WOW is explained in ARINC 741 Characteristic
Attachment 1-4, Note 19. This SDI/WOW logic, where 0=open and
1=strapped to common, is the reverse to the logic applied to all other HSD
and HSD-X connectors, Forward ID, System Config, and Data I/O Config,
where 0=strapped to common and 1=open.
(d) Maintenance Port Interface – Multi-Channel
Both HSD and HSD-X transceivers have 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.
Direct connection to the HSD-X’s front panel, maintenance port requires an
HSD-X maintenance port cable. The front connector, maintenance port supports
trace and data load functions and is a female, micro-D-type, M83513/04-B11N,
or equivalent. As well, a permanent connector wired to the rear, middle-plug, of
the ARINC-600 connector can be installed for remote access. Specifications and
pinouts for this cable are provided in
"Test and Fault Isolation" on page 4-1.
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.