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1-8 General Description
GigWorks MKII-16 Switch Model MKII-BASE16
59003-01 Rev. A Installer's/User's Manual
General Description
Front Panel Controls
Power Button
Figure 1-2 shows the location of the Power Button. The Power Button is
protected by a clear plastic cover that must be flipped UP in order to reach the
button. The Power button is an alternate-action switch (press it to turn it on and it
stays depressed, press it again to turn it off and the button releases).
When you press the Power button and turn it ON, you enable the logic voltages to
leave the Power Supply(s) and enter the Switch logic. The Logic Power Good LED
on the front of the chassis and the Power Good light on the back of the Power
Supply(s) will light to indicate that the Switch logic is receiving power within the
proper voltage range. Refer to the Front Panel LEDs for more information.
As long as the chassis is connected to AC power, the fan(s) run and the power
supply(s) produce the logic voltages (3.3 volts and 5 volts) required by the
Switch. As long as the Power button has not been depressed (still in the OFF
(out) position) the logic voltages do not leave the Power Supply, the Power Good
LED on the Power Supply(s) is not lit, and the Logic Power Good LED on the
front of the chassis is not lit.
Continuous Test Button
The Continuous Test button on the front panel is an alternate-action switch (press
it and it stays depressed, press it again and the button releases). This button must
be in the depressed (OP) position for normal operation. The Continuous Test
button initiates internal diagnostics when it is in the out (TST) position.
Figure 1-2 shows the location of the Continuous Test Button. The
Troubleshooting section in this manual describes the tests and the LED error
blink patterns that visually indicate the test failures.
Front Panel LEDs
Refer to Figure 1-2. LEDs visible through lenses in the front of the chassis
indicate chassis and port status. During a Reset operation (for about two seconds
at the beginning of power-up or as long as the Reset button is pressed) all LEDs
are forced ON. The following definitions are valid following the Power-On-
Self-Test (POST) and with the Continuous Test button in the OFF (IN)
position. Refer to Section 3 (Diagnostics/Troubleshooting) for information about
POST, LED definitions during Continuous Test, and how the LEDs act when the
control code (located in Flash memory) hangs up.
Heartbeat LED (Yellow)
The Heartbeat LED indicates the status of the internal Switch processor, the
results of Power-On-Self-Tests (POSTs) run at power-up, and tests initiated by
the Continuous Test button.