Cisco Systems 1805 User Manual

CHAP T E R

Installing and Upgrading Internal Modules in Cisco 1805 Cable Routers

This chapter describes how to install or upgrade modules that are located internally within the Cisco 1805 DOCSIS cable router: memory modules and advanced integration modules (AIMs). You need to remove the cover from the router to install or remove any of these items. The chapter contains the following sections:

• Safety Warnings, page 8-1

• Modules Internal to the Cisco 1805 Cable Router, page 8-2

Note Before you install, operate, or service the system, read the Regulatory Compliance and Safety

Information for Cisco 1840 Routers for important safety information and translations of the warnings

that appear in this guide.

Safety Warnings

Warning

Before working on a system that has an on/off switch, turn OFF the power and unplug the power cord.

Statement 1

Before working on equipment that is connected to power lines, remove jewelry (including rings, necklaces, and watches). Metal objects will heat up when connected to power and ground and can cause serious burns or weld the metal object to the terminals.

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.

Do not work on the system or connect or disconnect cables during periods of lightning activity.

Statement 1001

Statement 43

Statement 94

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Modules Internal to the Cisco 1805 Cable Router

Chapter 8 Installing and Upgrading Internal Modules in Cisco 1805 Cable Routers

Warning

Read the installation instructions before you connect the system to its power source.

Hazardous network voltages are present in WAN ports regardless of whether power to the router is OFF or ON. To avoid electric shock, use caution when working near WAN ports. When detaching cables, detach the end away from the router first.

Statement 1026

Modules Internal to the Cisco 1805 Cable Router

This section tells how to install a small-outline dual in-line memory module (SODIMM) and an advanced integration module (AIM) in the Cisco 1805 cable router. It contains the following subsections:

• Opening the Chassis, page 8-2

• Locating Modules, page 8-4

• Installing a SODIMM, page 8-5

• Installing an AIM, page 8-6

• Closing the Chassis, page 8-10

All the module replacement procedures in this section require removal of the chassis cover. Before you perform any of the module replacement procedures, disconnect the power and remove the cover as described in the “Opening the Chassis” section on page 8-2. After you complete the module replacement procedures, install the chassis cover as described in the “Closing the Chassis” section on page 8-10.

Statement 1004

Opening the Chassis

To open the chassis, follow these steps. You need a number one Phillips screw driver to complete this procedure.

Step 1 Make sure that the router is turned off and is disconnected from AC power.

Step 2 Turn the router upside-down, and rest the top of the router on a flat surface.

Step 3 Use the Phillips screwdriver to remove the screw that holds the top and bottom of the chassis together.

(See Figure 8-1.)

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Chapter 8 Installing and Upgrading Internal Modules in Cisco 1805 Cable Routers

Figure 8-1 Removing the Chassis Screw

Modules Internal to the Cisco 1805 Cable Router

xLN

CAB

LE-D-2

IC-

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1 Router cover fastening screw

Step 4

Insert a flat-head screwdriver into the slots at the screwdriver pry points and rotate the screwdriver 90 degrees to disengage the top cover from the chassis. See Figure 8-2.

Figure 8-2 Screwdriver Pry Points

PWR

LNK

PWR

4ESW

2x LNK PWR

1x LNK

CABLE-D-2 HWI

CABLE

ONLINE

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HWI

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1 Screwdriver pry points

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Step 5 Turn the router right side up (top up).

Step 6 Gently slide the top of the router (which is facing up toward you) away and up from the bottom of the

router (which is resting on the flat surface). See Figure 8-3.

Cisco 1805 DOCSIS Cable Router Hardware Installation Guide

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Modules Internal to the Cisco 1805 Cable Router

Figure 8-3 Removing the Cover of the Cisco 1805 Router

Chapter 8 Installing and Upgrading Internal Modules in Cisco 1805 Cable Routers

HW 4ESW

3x LNK PWR2x LNK PWR

PWR

0x LNK

LNK PWR

E IN L

-2

-D

232510

1 Slide cover back from router chassis 2 Rotate cover to remove from router chassis

Step 7

Place the router bottom on an antistatic mat, and begin installing the memory modules.

Locating Modules

Figure 8-4 shows where the connector for the SODIMM or the AIM is located on the Cisco 1805 cable

router motherboard.

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