Figure 5-11.—The C2P system hardware configuration
One embedded memory subsystem (EMS)
with two embedded mass memory storage
devices (EMMSD)
A major change in the configuration of the
AN/UYK-43A(V) is the EMS and its associated
EMMSDs. The EMS consists of two 383 megabyte
hard drives installed in the AN/UYK-43(V) cabinet.
Even though these disk drives are internally installed
in the computer, the software accesses them as if they
were external disk drives.
The AN/USQ-69(V) data terminal set is used to
provide the man-machine interface (MMI). It is
installed next to the Track Supervisor in CIC.
Several equipments are shared between the ACDS
system and the C2P system.
These include the
magnetic tape unit, a teleprinter, and a second
AN/USQ-69(V) data terminal set. The magnetic tape
unit is used for initial program loading (to EMS), data
extraction,
and reading and writing JTIDS
information to and from tape. It is also a backup load
device when the EMS is down.
The teleprinter
provides hard copy printouts of C2P
error codes,
and data dumps.
AN/USQ-69(V) is used as a backup.
Shared equipments are switched
system status,
The second
to the desired
systems through the Combat Systems Switchboard.
The switchboard also provides switches to connect
Link-4A and Link-11 directly to the CDS computer,
bypassing the C2P system.
SUMMARY—NEW TECHNOLOGY IN DATA
COMMUNICATIONS
This chapter introduced you to some of the new
changes and systems concerning data communications
in the Navy. The following information summarizes
the important points you should have learned.
THE AN/USQ-125 DATA TERMINAL
SET— The AN/USQ-125 data terminal set replaces
many of the older Link-11 data terminal sets in the
Navy. It consists of the CP-2205(P)(V)/USQ-125
data terminal and a remote control unit.
THE
CP-2205(P)(V)/USQ-125
DATA
TERMINAL— The CP-2205(P)(V)/USQ-125 data
terminal performs the modulation/demodulation, error
detection and correction, CDS computer and radio
interface, signal analysis and built-in test functions.
In addition to performing all of the standard multi-
tone Link-11 operations, the data terminal has several
new capabilities.
These capabilities include the
following:
5-13
Single-Tone Waveform Link— This option
of the Link-16 system is used to transmit data
over a standard telephone modem or a satellite
modem. It uses an 1,800-Hz phase-modulated
waveform that has the Link-11 data embedded
in it as a serial bit stream.
Enhanced Link Quality Analysis— ELQA
allows the operator to monitor and evaluate
the performance of the Link-11 net by
providing most of the functions of the
LMS-11.
