User's Manual

Page 3–39
18 September 2007
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
eNfusion™ HSD-128 High-speed Data Terminal
To install the RF Splitter:
1. Determine a suitable location near the RFU to secure the splitter.
2. Cut the receive coax cable at the splitter mounting location.
3. Re-terminate the cut ends with TNC coax connectors
4. Connect the end coming from the antenna subsystem to the splitter input (S)
connector.
5. Connect the end going to TPC1 of the RFU to one of the output ports of the
splitter, one or two.
6. Run a new coax cable (length is installation specific) from the unused splitter
output port to BP-12 of the ARINC 600 connector of the HSD tray assembly.
(j) Combined/Selective Mode Connection Details
The tables in this section provide all top, middle, and bottom plug connection
details for Combined and Selective Mode installations.
Table 3–19. Receive Path Parts Requirements – Combined/Selective
Item
Manufacturer
PN
EMS SATCOM
PN
Description
RF Splitter ZAPD-2-TNC 32800004 Mini-Circuit, 2-way 0°, TNC, Splitter
Receive Coax 432101 – ECS, Coax Cable, 0.130 O.D.,
50
Ω, 17.5 dB/100 ft @ 1.5 GHz
Connector
(@ Splitter)
CTS522 – ECS, TNC, Straight Plug
Connector
(@ BP12)
P522 – ECS, ARINC 600, Size 5, Socket
Table 3–20. Combined/Selective Mode ARINC 600 Top Plug Connection Details
I/O
From
Top Plug
Signal Name To Description
I/O
1A to 1D Multi-Control IN and
BITE OUT
As per avionics
manufacturer’s
documentation
Multi-Control and BITE
I
2A BSU Top/Port BITE A SDU, MP7G ARINC Tx-HI BITE
From Top/Port BSU
I
2B BSU Top/Port BITE B SDU, MP7H ARINC Tx-LO BITE
From Top/Port BSU
I
2C BSU STBD BITE A Mechanically
Steered Antenna
1
(MA):
Not required
Other Antenna
2
(OA):
SDU, MP7J
ARINC Tx-HI BITE
From STBD BSU