Table 2: Power Supply Specification
DC (A920-PWR400-D)
AC (A920-PWR400-A)
Specification
24 V
–
60 V
100 V
–
240 V
Voltage
20A through a two-position
terminal block
5A through a standard C16 type
receptacle
Current
375 W
360 W
Input Power
This product requires surge protection as part of the building installation. To comply with the Telcordia
GR-1089 NEBS standard for electromagnetic compatibility and safety, an external surge protective device
(SPD) is required at the AC power service equipment.
Note
For DC systems, if a surge of more than 500 V is expected, add an appropriate external surge protective
device.
Note
The router has a single fan-tray with four fans. The system is designed to operate at its maximum operating
temperature of 70º C, in case of failure of a single fan operating temperature of 65º C. The fan tray is
field-replaceable.
LED Indicators
This section describes the different types of LEDs and their behavior.
PWR and STAT LEDs
The PWR LEDs are available on the front panel. These LEDs provide power on the board (PWR) status.
During power up state, these LEDs provide booting status and report errors.
The digital code signing functionality validates the integrity and authenticity of the ROMMON image
before booting it.
Note
Table 3: PWR and STAT LED Indications
Comment
Indication
STAT LED state
PWR LED State
Permanent Amber/Off
indicates FPGA
configuration failure.
Power in the system is all
right and FPGA
configuration is taking
place.
Off
Amber
Cisco ASR-920-12SZ-IM Aggregation Services Router Hardware Installation Guide
11
Cisco ASR 920 Series Aggregation Services Router Overview
LED Indicators
