Installing The Power Supply - Cisco ASR-920-24SZ-IM Installation Manual

Chapter 3 Installing
To install a new fan tray, follow the steps in the

Installing the Power Supply

The Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Router provides the choice of two
different power supplies:
•
•
Each power supply provides a single primary input power connection. You can install dual-power
supplies for redundancy.
Warning Read the installation instructions before connecting the system to the power source. Statement 1004
Products that have an AC power connection are required to have an external surge protective device
Note
(SPD) provided as part of the building installation to comply with the Telcordia GR-1089 NEBS
standard for electromagnetic compatibility and safety.
Do not use interface module or power supply ejector handles to lift the chassis; using these handles to
Caution
lift the chassis can deform or damage the handles.
The following sections provide more information on the Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M,
ASR-920-24TZ-M Router power supplies:
•
•
•
•
•
•
Cisco ASR-920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Aggregation Services Router Hardware Installation Guide
DC power—-48 V/60 Vdc or 24 Vdc
The DC power supply uses 2 position terminal block-style connector. The terminal block connector
is of suitable size to carry the appropriate AWG wire size to handle the input current of the power
supply. ON/OFF switch is provided.
AC power—100 VAC to 240 VAC
The AC power supply has an IEC 320-type power receptacle and a 15-A service connector. You can
use standard straight power cords with the AC power supply. The power supply includes a power
cord retainer clip that can only accept straight power cords. No ON/OFF switch is provided.
"Preventing Power Loss" section on page 3-28
"Power Connection Guidelines" section on page 3-28
"Installing a DC Power Supply" section on page 3-29
"Removing and Replacing a DC Power Supply" section on page 3-32
"Installing an AC power Supply" section on page 3-34
"Removing and Replacing an AC Power Supply" section on page 3-36
"Installing the Fan Tray" section on page
Installing the Power Supply
3-22.
3-27