Ihse Draco U-Switch - Status Leds 21-Slot Chassis Draco Vario 474-BODY21;4 U and 474-BODY21;4 UR

Draco U-Switch Description
29
3.12.10 Status LEDs 21-Slot Chassis Draco vario 474-BODY21/4U and 474-BODY21/4UR
Fig. 28 Rear side chassis 474-BODY21/4U und 474-BODY21/4UR - Status LEDs
1 Status LED power supply voltage 2 (redundancy)
2
Fault LED power supply voltage 2 (redundancy)
3 Status LED power supply voltage 1
4
Fault LED power supply voltage 1
The following tables show the LED states/colors for the power supply voltage (see chapter 3.9.10 page 20).
Status LEDs for Power Supply Voltage of the Standard Power Supply Unit
Pos.
LED
Description
3
Green
Power supply voltage available.
4 Off
3
Green
• The input voltage of the power supply unit is too low.
• The output voltage of the power supply unit too high.
• Permissible power supply temperature exceeded.
4
Red
3 Off
No power supply voltage available.
4 Off
Status LEDs for Power Supply Voltage of the Redundant Power Supply Unit
Pos.
LED
Description
1
Green
Power supply voltage available.
2 Off
1
Green
• The input voltage of the power supply unit is too low.
• The output voltage of the power supply unit too high.
• Permissible power supply temperature exceeded.
2
Red
1 Off
• No power supply voltage available.
• No redundant power supply unit installed.
2 Off