Download
Share
Print this page
  1. Manuals
  2. Brands
  3. Cisco Manuals
  4. Network Router
  5. ASR-920-20SZ-M
  6. Replacement manual

Cisco ASR-920-20SZ-M Replacement Manual

Replace the power supply
Hide thumbs Also See for ASR-920-20SZ-M:
1
2
3
4
5
6

Advertisement

Quick Links

Download this manual
Replace the Power Supply
Before you begin this task, ensure that you have read and understood the safety warnings in the
Electricity
Note
The Cisco ASR-920-20SZ-M Router power supplies are hot-swappable. If you have installed redundant power
supplies, you can replace a single power supply without interrupting power to the router.
Caution
To avoid erroneous failure messages, allow at least 2 minutes for the system to reinitialize after a power supply
has been removed or replaced.
You can replace the AC or the DC power supply.
•
•
Remove the DC Power Supply
Note
This equipment is suitable for installation in Network Telecommunications Facilities and locations where the
NEC applies. The equipment is suitable for installation as part of the Common Bonding Network (CBN).
Caution
The grounding architecture of this product is DC-isolated (DC-I) for DC-powered products. DC-powered
products have a nominal operating DC voltage of 48 VDC. Minimal steady state DC operating voltage is 19.2
VDC.
section of the
Safety Warnings
Remove the DC Power Supply, on page 1
Remove the AC Power Supply, on page 3
handout topic.
Safety with
Replace the Power Supply
1

Advertisement

loading

Related Manuals for Cisco ASR-920-20SZ-M

Summary of Contents for Cisco ASR-920-20SZ-M

  • Page 1 Safety Warnings handout topic. Note The Cisco ASR-920-20SZ-M Router power supplies are hot-swappable. If you have installed redundant power supplies, you can replace a single power supply without interrupting power to the router. Caution To avoid erroneous failure messages, allow at least 2 minutes for the system to reinitialize after a power supply has been removed or replaced.

  • Page 2: Install The Dc Power Supply

    Replace the Power Supply Install the DC Power Supply Procedure Step 1 Before servicing the power supply, switch off the circuit breaker in your equipment area. As an additional precaution, tape the circuit-breaker switch in the Off position. Step 2 Slip on the ESD-preventive wrist strap that was included in the accessory kit.

  • Page 3: Remove The Ac Power Supply

    Replace the Power Supply Remove the AC Power Supply Step 3 Verify that power to the DC circuit connected to the power supply you are installing is off. To ensure that power has been removed from the DC circuits, locate the circuit breakers for the DC circuits, switch the circuit breakers to the OFF position, and tape the circuit-breaker switches in the OFF position.

  • Page 4: Install The Ac Power Supply

    Replace the Power Supply Install the AC Power Supply Figure 3: Remove the AC Power Supply Caution Do not use the captive installation screw or the power retainer to pull out the power supply. Step 4 Grasp the AC power supply metal tab with one hand, and slide it part of the way out of the chassis. Place your other hand underneath the power supply, and slide it completely out of the chassis.
  • Page 5 Replace the Power Supply Install the AC Power Supply Figure 4: Install the AC Power Supply Step 4 Tighten the captive installation screw of the power supply. The recommended maximum torque is 5.5 inch-pounds (.62 newton meters). Replace the Power Supply...
  • Page 6 Replace the Power Supply Install the AC Power Supply Replace the Power Supply...