2220 Control Panel Functions
FAN BOX
APC RESET
ALARM
A P C
1
1
2
2
POWER SUPPLY
The front panel contains:
The power ON/STANDBY switch, which is used to power ON (position on the
control panel) or STANDBY (position on the control panel) the 2220 (see
note).
The APC RESET button, which resets the APC (but does not disturb the data
traffic).
Six LEDs that indicate different status:
POWER SUPPLY 1 and 2
Each of these two green LEDs reflects the status
of one power supply (1 or 2). Each LED is ON
when the associated power supply is ON.
APC
This green LED is ON when the alarm and power
control (APC) module inside the 2220is running
error free. It is blinking during the power on self
test (POST), or when an adapter has been
disabled.
ALARM
This yellow LED is ON when an error has been
detected in the 2220.
FAN BOX 1 and 2
Each of these two yellow LEDs reflects the status
of one FAN box. They are ON as soon a FAN
problem has been detected.
Note: When the power ON/STANDBY switch is on the STANDBY position on
the control panel), the 2220 board is powered OFF while the power-supplies
are still in Stand-by mode (energized).
Chapter 2. Introduction / Overview
2-3
Summary of Contents for 2220 Nways 300
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Page 217: ...Catalog Section Appendix D Parts Catalog D 7...
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