Table 4: Power Supply Specification
DC
AC
Specification
-48/-60 V or 24 V
100 V
–
240 V, 50/60Hz
Voltage
5.5 A
–
48/
–
60 V
11 A
–
24 V
through a two-position terminal
block
2.6 A through a standard C16 type
receptacle
Current
260 W (ASR-920-PWR-D)
260 W (ASR-920-PWR-A)
Input Power
DC PSU can be switched on or off using a switch on the front panel of the DC PSU.
Note
For DC PSU, the UVP and OVP limits vary depending on the input voltage applied at power up: For
-48/-60 V: UVP= -36 Vdc and OVP = -72 Vdc For 24 V: UVP =18 Vdc and OVP = 32 Vdc
Note
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 1KV is expected, add an appropriate external surge protective
device.
Note
The Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Router have removable fan tray as part
of the system. The fan tray is hot-swappable. The system is designed to operate at its maximum operating
temperature of 70º C and at 65º C in case of failure of a single fan, for a maximum of four hours.
LED Indicators
This section describes the different types of LEDs and their behavior.
PWR and STAT LEDs
The PWR and STAT LEDs are available on the front panel. These LEDs provide power on the board (PWR)
and overall router health (STAT) status. During power up state, these LEDs provide booting status and report
errors.
Cisco ASR-920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Aggregation Services Router Hardware Installation
Guide
16
Overview
External Interfaces
Содержание ASR-920-24SZ-IM
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