User manual

Maintaining the LightStream 1010 ATM Switch 4-3
Power Supply LEDs
If the source power or any of the internal DC voltages exceed allowable tolerances, the LED
goes off and the system environmental monitor messages indicate the out-of-tolerance line.
Because the system requires all three output voltages for operation, the system
malfunctions or shuts down if any of the internal DC voltages reach an out-of-tolerance
state.
Figure 4-1 Power Supply LED (AC Power Supply Shown)
ATM Switch Processor Power Supply LEDs
On the ATM switch processor front panel, the PS0 LED goes on when the power supply in
the left bay, labeled PS0, is installed and supplying power to the system. The PS1 LED goes
on when the power supply in the right bay, labeled PS1, is installed and supplying power to
the system. Both the LEDs should be on in systems with redundant power. The ATM switch
processor LEDs are shown in Figure 4-2 and are described in Table 4-1.
H5588
Power
connector
Power
switch
LED
Power
100-127/200-240V~
8.0/4.0 A
60/50 Hz