Figure 4-16.—The AN/USQ-59 TADIL A control panel.
CONTROL ON/OFF SWITCH —When the
CONTROL switch is placed to the ON position,
+28Vdc is applied to the fault isolation control panel,
the mode control panel, the TADIL A control panel,
and the address control panel.
TADIL A Control Panel
The TADIL A control panel provides the control
switches and indicators required to control and
monitor Link-11 operations. Figure 4-16 shows the
AN/USQ-59 TADIL A control panel.
XMT DATA ERROR INDICATOR. —This
indicator is lighted when the DTS detects an error
while transmitting data in the TADIL A, or Link-11,
mode.
RCV DATA ERROR INDICATOR. —This
indicator is lighted when the DTS detects an error in
received data being sent to the CDS computer.
CODE ERROR INDICATOR. —The CODE
ERROR indicator is lighted when the DTS detects an
error in the received or sidetone (transmit) control
codes during TADIL A operations.
NET BUSY INDICATOR. —The NET BUSY
indicator is lighted when the DTS detects that the
communications net is busy. It is activated when a
signal called signal presence is generated by the
DTS .
SYNC COMPT INDICATOR. —The SYNC
COMPT indicator is lighted continuously, or flashes,
when the DTS has achieved synchronization with the
NCS data terminal.
T I M I N G S T O R E D / C O R R E C T E D
SWITCH. —The TIMING STORED/CORRECTED
switch determines how the DTS is synchronized.
When the switch is in the CORRECTED position, the
fast synchronization and/or the continuous
synchronization circuitry in the DTS is used. The
position of the sync mode switch on the mode control
panel determines whether the fast, continuous, or both
circuits are used to maintain synchronization. In the
STORED position, the DTS uses the time base stored
during Net Sync. During normal operations, this
switch should be in the CORRECTED position.
OPERATE/RADIO SILENCE SWITCH. —The
OPERATE/RADIO SILENCE switch is a two-
position toggle switch that allows the DTS to inhibit
radio transmissions. In the OPERATE position, the
DTS operates normally. When switched to the
RADIO SILENCE position, the radio keyline and
transmit audio circuits are immediately disabled.
NET CONTROL/PICKET SWITCH. —The
NET CONTROL/PICKET switch configures the DTS
to operate as the net control station or a picket station
in roll call mode.
ERROR CORRECT/LABEL SWITCH. —The
ERROR CORRECT/LABEL switch determines how
the DTS processes detected errors. In the
CORRECTED position, the DTS attempts to correct
detected errors. If a single bit error is detected, the
location of the erroneous bit is detected and corrected.
4-15
