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Monitor Control and Reply Messages | Up
Fire Controlman Volume 06-Digital Communications | Next
SUMMARY—LINK-4A |
Converts parallel data from the CDS computer
into serial data for transmission to controlled
aircraft
Converts serial data received from controlled
aircraft into parallel data for input to the CDS
computer.
The current five versions of the AN/SSW-1() used
in shipboard Link-4A systems are the AN/SSW-1A,
1B, 1C, 1D, and 1E. The AN/SSW-1A, 1B, and 1C
are operationally and fictionally identical, as are the
AN/SSW-1D and 1E. The major difference between
the two groupings of versions is the single-channel
capability of the AN/SSW-1A/B/C and the dual-
channel capability of the AN/SSW-1D/E. Each of the
dual channels is capable of the link operations of the
single channel AN/SSW-1().
The dual-channel
AN/SSW-1D/E is also capable of transmitting CAINS
data.
For purposes of this lesson, we use the
AN/SSW-1D/E.
The AN/SSW-1D/E, shown in figure 4-4, consists
of the following eight major subassemblies: one
coordinate data transfer control, two digital-to-
digital converters, two monitor test panels, two
pulse amplifier assemblies, and a power supply
assembly. There are two independent equipment
groups in the AN/SSW-1D/E. Each group is capable
of simultaneous operations with separate and
dedicated computer input-output channels and
dedicated UHF radio sets,
Figure 4-4.—The AN/SSW-1D/E data terminal set.
Figure 4-5.—The coordinate data transfer control assembly (AN/SSW-1D/E).
4-5
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