Figure 6-4.—The AN/SSW-1D/E data terminal set.
DATA TERMINAL SET AN/SSW-1D/E
The
Link-4A
data
terminal
set
is
the
AN/SSW-lD/E. The data terminal set performs the
following functions:
Provides overall Link-4A system timing
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 functionally 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 6-4, consists
of the following eight major subassemblies: one
coordinate data transfer control, two digital-to-
digital converters, two monitor test panels, two
Figure 6-5.—The coordinate data transfer control assembly (AN/SSW-1D/E).
6 - 5
