Cisco 3800 Series - Manual (Page 108)

78
Installing and Upgrading Internal Components in Cisco 3800 Series Routers
OL-5975-04
Safety Warnings
• Safety with Electricity, page 79
• Removing the Cover from a Cisco 3825 Router, page 80
• Removing the Power Supply Assembly from a Cisco 3825 Router, page 81
• Removing the Plug-In Motherboard from a Cisco 3845 Router, page 82
• Component Locations on the Motherboard, page 83
• SDRAM DIMM Removal and Installation, page 85
• AIM Installation and Removal, page 88
• PVDM Installation and Removal, page 96
• Installing a Power Supply in a Cisco 3825 Router, page 98
• Reinstalling the Cover on a Cisco 3825 Router, page 105
• Installing or Replacing the Plug-In Motherboard in a Cisco 3845 Router, page 105
• Removing and Installing the Fan Tray and Power Supplies in a Cisco 3845 Router, page 106
Before you perform any of these procedures, disconnect the power and remove the cover as described in
the
“Safety with Electricity” section on page 79 .
Safety Warnings
Warning During this procedure, wear grounding wrist straps to avoid ESD damage to the card. Do not directly
touch the backplane with your hand or any metal tool, or you could shock yourself. Statement 93
Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Statement 1030
Warning This equipment must be installed and maintained by service personnel as defined by AS/NZS 3260.
Incorrectly connecting this equipment to a general-purpose outlet could be hazardous. The
telecommunications lines must be disconnected 1) before unplugging the main power connector or 2)
while the housing is open, or both. Statement 1043
Warning This unit is intended for installation in restricted access areas. A restricted access area can be
accessed only through the use of a special tool, lock and key, or other means of security.
Statement 1017
Warning Before working on a system that has an on/off switch, turn OFF the power and unplug the power cord.
Statement 1
Warning Do not work on the system or connect or disconnect cables during periods of lightning activity.
Statement 1001