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One or More Amps in System Main Status
Fault Status
Main Status
Reported on
Indicators
LCD Display
Run
WARNING!
Ready
OVERVOLTAGE
Standby
Stop
4.2
Back-Panel Controls
and Connectors
This section provides an overview of Back-Panel
controls and connectors found on the 2105 ampli-
fier. Please refer to Figure 4.9 for visual locations.
AC Supply - Standard 20 amp 3-pin IEC-type
male connector.
Output Terminal Strip - Connect output lines from
the load to this 3-position terminal strip with 5 mm
screws. It accepts up to #10 AWG wire.
BNC Input Connector - This input option provides
a standard unbalanced input. It can also be used
as a balanced input.
Input Selector Switch – When the Input Select
switch is in the LEFT position, the shield on the
BNC connector and the inverting (–) pin on the
terminal block connector are tied to the amplifier
16
Indicators of
Other Amps
in System
State of Operation
Overvoltage status: This
indicates that the AC mains
voltage is more than +10% of
nominal. All amplifiers in the
Run
system will be forced to Standby
Ready
when an Overvoltage condition
Standby
occurs. When the Overvoltage
condition is cleared, the system
Stop
will automatically return to Run
mode.
Figure 4.9 – Back Panel Controls and Connectors
Information subject to change
2105 OPERATOR'S MANUAL – SECTION 4
Action Needed to Clear
Fault Condition and Re-
turn to Run Mode
To clear an Overvoltage fault
condition, the AC mains must
be brought down to the nomi-
nal value. If the system does
not return to Run mode when
the Overvoltage condition has
cleared, one or more amplifiers
may require servicing. Please
see the "Troubleshooting"
section for more information.
ground through a 4.7-ohm resistor, allowing the
connectors to be used for Unbalanced input wir-
ing. When the Input Select switch is in the RIGHT
position, the inverting (–) pin on the terminal block
connector is floating, allowing the connector to be
used for Balanced input wiring. The Input Select
switch also functions as a Ground Lift switch for
the BNC input connector.
Terminal Block Input Connector - This input op-
tion provides a balanced input. It can also be used
as an unbalanced input.
Interlock Connector - This 25-pin, D-sub connec-
tor is used for interlocking and combining functions
in a multi-amp system. It can also be used for re-
mote control and monitoring applications (see the
"Applications" section for more information).
97-2105006_4-2-15
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