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Operator Panel
The 3494 operator panel is mounted on the front door of the control unit frame.
Normal operation of the 3494 is controlled through the use of this operator panel.
Power Controls and Status Indicators
See Figure 22 on page 33 for the locations of the controls and indicators.
1 Unit Emergency switch
The Unit Emergency switch turns off power to the 3494 immediately and
should only be used in an emergency. The Unit Emergency switch must be
in the on position for the 3494 to be powered on.
Note: If the 3494 Library has more than eight frames, or has the optional
High Availability Model Service Bays, a second unit emergency
switch is located at the right end of the Library. Either switch can be
used to immediately turn off power.
Note: The 3494 Library Unit Emergency switches do not turn off power to
the attached stand-alone Model B18 Virtual Tape Server.
2 Unit Power switch
The Unit Power switch turns power on and off to the components inside the
3494. The Unit Power switch is used to power on and off the 3494 under
normal conditions. Using the Unit Power switch to turn off power to the
3494 allows the library manager, Virtual Tape Servers, tape control units,
and tape drives to shut down in an orderly manner.
3 Rack Power Ready LED
The Rack Power Ready light-emitting diode (LED), when lit, indicates the
AC power is on in the 3494 control unit.
4 System Power Ready LED
The System Power Ready LED, when lit, indicates the AC power is on to
the control units and drive units inside the 3494.
5 Power Off Pending LED
The Power Off Pending LED, when flashing, indicates the power to the
3494 is being turned off.
6 Local Remote power switch
The Local Remote power switch allows the library’s power to be controlled
by the switches on the operator panel (local) or through an AS/400 host
(remote) if the Local Remote Power Feature is installed. The Local Remote
switch must be in the local position if the remote power feature is not
installed.
Attention: Pressing the Local Remote switch to the remote position, if the
Local Remote Power feature is not installed, causes the 3494 to power off.
Motion Controls and Status Indicators
See Figure 22 on page 33 for the locations of the controls and indicators.
7 Auto mode switch and status LED
The Auto mode motion control switch allows the operator to place the
library into Auto mode. The LED flashes during the mode transition and
32 Magstar 3494 Tape Library Operator Guide