Source/Destination Identification (Sdi); Maintenance Port Interface; Remote Status Panel; Figure 3-2 System Rx Loss - EMS eNfusion 1252-A-4100-01 System Description, Installation And Maintenance Manual

SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
eNfusion™ HSD-X and HSD-Xi High-speed Data Terminal
Figure 3-2 illustrates the network mode system RX loss.
After you have installed the HSD-Xi, measure the cable loss. You must configure the HSD
terminal with the measured value.
B. Source/Destination Identification (SDI)
Source/Destination Identification (SDI) is provided for the beam steering unit and the
high-power amplifier (HPA) according to ARINC 741 specifications. Pins marked 0 are left
open circuit. 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.
C. Maintenance Port Interface
Use a HSD-Xi maintenance port cable to connect directly to the front-panel maintenance
port of the HSD-Xi. The front connector maintenance port is a female, micro-D-type,
M83513/04-B11N, or equivalent connector. You can also wire a permanent connector to
the rear, middle-plug, of the ARINC-600 connector for remote access.
NOTE: The front panel and remote connections to the maintenance port of the network
mode HSD terminal and the HSD-Xi terminal cannot be used simultaneously.
D. Remote Status Panel
The HSD-Xi remote LED shows the status of the HSD-Xi terminal. The open collector
transistors located in the HSD-Xi can drive up to 500 mA of current—so you can use either
incandescent lamps or LED circuits with the appropriate current limits. Figure 3-3
illustrates an LED powered with a 28-volt source.

Figure 3-2 System RX Loss

23-15-30
3-3
8 MAY 09