Cisco MEM-CIP-64M Manuale utente

Doc. No.

Cisco Systems, Inc.

170 West Tasman Drive

San Jose, CA 95134-1706

USA

Cisco Systems, Inc.

Corporate Headquarters

Upgrading DRAM on the CIP2

Product Numbers: MEM-CIP-64M= and MEM-CIP-128M=

This publication contains procedures for upgrading dynamic random-access memory (DRAM)

single in-line memory modules (SIMMs) on the second-generation Channel Interface Processor

(CIP2).

Note DRAM SIMMs must be removed or installed in the ﬁeld by a Cisco-certiﬁed maintenance

provider only.

Caution Improper handling of the bus and tag and ESCON channel cables and interface adapters

can cause signiﬁcant problems for other devices on the same channel as the CIP2. Mainframe

processors can, in some circumstances, be rendered inoperable due to system crashes caused by

improper cable handling. We strongly recommend that only Cisco-certiﬁed maintenance providers

connect and disconnect channel cables between the router and the mainframe, and perform

maintenance procedures on the CIP2.

Note For more complete information on the CIP2, refer to the conﬁguration note

Second-GenerationChannelInterface Processor(CIP2)Installation andConﬁguration,which ships

with the CIP2 and is available on the Cisco Connection Documentation, Enterprise Series CD-ROM,

on the Cisco Products disc.

78-3915-01

2Upgrading DRAM on the CIP2

Document Contents

Following are the contents of this publication:

•Service and Upgrade Prerequisites

•Upgrading DRAM on the CIP2, page 3

•Checking the DRAM Upgrade, page 11

•Cisco Connection Online, page 12

Service and Upgrade Prerequisites

Before you begin to upgrade the CIP2, review the electrostatic discharge (ESD)-prevention

guidelines in this section to avoid damaging the equipment. This section also lists the parts and tools

you will need to perform the upgrade.

Preventing Electrostatic Discharge Damage

ESD damage, which can occur when electronic cards or components are improperly handled, results

in complete or intermittent failures. Each processor module contains a printed circuit card that is

ﬁxed in a metal carrier. Electromagnetic interference (EMI) shielding, connectors, and a handle are

integral components of the carrier. Although the metal carrier helps to protect the card from ESD,

use an ESD-preventive wrist or ankle strap whenever you handle any electronic system component.

Attach the ESD-preventive wrist strap between you and the carrier.

Required Tools and Parts

You need the following tools and parts to upgrade a CIP2. If you need additional equipment, contact

a customer service representative for ordering information.

•Number 2 Phillips or a 3/16-inch ﬂat-blade screwdriver

•DRAM upgrade products—MEM-CIP-64M= or MEM-CIP-128M=

•ESD-preventive wrist strap or other device for preventing ESD damage

Upgrading DRAM on the CIP2 3

Upgrading DRAM on the CIP2

This section includes procedures to perform an upgrade of DRAM SIMMS on the CIP2. DRAM

SIMMs must be removed or installed in the ﬁeld by a Cisco-certiﬁed maintenance provider only.

Caution Improper handling of the bus and tag and ESCON channel cables and interface adapters

can cause signiﬁcant problems for other devices on the same channel as the CIP2. Mainframe

processors can, in some circumstances, be rendered inoperable due to system crashes caused by

improper cable handling. We strongly recommend that only Cisco-certiﬁed maintenance providers

connect and disconnect channel cables between the router and the mainframe, and perform

maintenance procedures on the CIP2.

The procedures in this section include the following:

•Removing a CIP2, page 3

•Removing and Replacing DRAM SIMMs, page 6

•Installing a CIP2, page 8

•Attaching the ESCON Cable to the Host Channel, page 10

Removing a CIP2

Follow these steps to remove a CIP2:

Step 1 Attach an ESD-preventive wrist strap between you and the chassis.

Step 2 If you have a Parallel Channel Adapter (PCA), vary ofﬂine the addresses assigned to the

CIP2. For instructions on how to vary ofﬂine, refer to your operating system’s

documentation.

Step 3 Shut down the interfaces on the CIP2 using the shutdown command. For the ESCON

interface on ESCON Channel Adapter (ECA), this will prevent logouts from occurring

on the router console when the optical-ﬁber cable is removed.

Step 4 The select/bypass switch marked S(for select mode) and B(for bypass mode) is located

on the rear of the PCA connector. (See Figure 7.) The select/bypass switch is required to

allow the cable to be separated from the PCA without “opening” the select-out loop. If

you have a PCA, place the select/bypass switch in bypass mode. (See Figure 1.)

Caution To prevent halting or otherwise affecting the mainframe operating system, verify that the

select/bypass switch is in bypass mode before you remove the PCA connector from the CIP2.

Figure 1 Select/Bypass Switch on Rear of PCA Connector (CAB-PCA-Y), Bypass Mode Shown

H2445

4Upgrading DRAM on the CIP2

Upgrading DRAM on the CIP2

Step 5 Disconnect the Y cable from each PCA and the ESCON cable from each ECA. (See

Figure 2.)Do notdisconnect the V-typecables fromthe Ycable.Todisconnectthe Y cable

from the PCA, it might be necessary to temporarily remove any strain relief used to

support the V-type bus and tag cables, which are quite heavy. It should not be necessary

to disconnect the V-type cables from the Y cable. Make certain that you replace all strain

relief when you reconnect the Y cable to the PCA connector.

Figure 2 Disconnecting Cables from the CIP2

Step 6 Use the appropriate screwdriver to loosen both the captive installation screws on the CIP2

or interface processor ﬁller. (See Figure 3a on page 5.)

Step 7 Place your thumbs on the ends of each of the ejector levers and simultaneously pull them

both outward, away from the interface port (in the opposite direction from that shown in

Figure 3c on page 5) to release the carrier from the slot. This action also releases the CIP2

bus connector from the backplane.

Step 8 Grasp the handle with one hand and pull the CIP2 straight out of the slot, keeping your

other hand under the carrier to guide it. Keep the carrier parallel to the backplane. Avoid

touching the card or any connector pins.

Caution Always use the ejector levers when installing or removing interface processor modules. A

module that is partially seated in the backplane will cause the system to halt and subsequently crash,

and shoving or slamming the interface processor into the slot can damage the backplane and pins.

Step 9 Place the removed CIP2 on an antistatic mat or foam pad (or in an antistatic bag if you

need to return the CIP2 to the factory for any reason).

CIP with an ECA

H2673

ESCON cable

CIP with a PCA

Y cable

Upgrading DRAM on the CIP2 5

Upgrading DRAM on the CIP2

Caution Topreventoverheatingthechassis, ifthe interfaceprocessorslot will remain empty during

the following upgrade procedures, install an interface processor ﬁller to keep dust out of the chassis

and to maintain proper airﬂow through the interface processor compartment.

Figure 3 CIP2 Removal and Replacement (Horizontal Orientation Shown)

Interface processor

card slot

Interface processor card

carrier guide (black)

Ejector 

lever

Captive

installation

screw

H1984

6Upgrading DRAM on the CIP2

Upgrading DRAM on the CIP2

Removing and Replacing DRAM SIMMs

CIP2s are shipped with 32 MB of DRAM. Depending on memory requirements, you might need to

upgrade the amount of DRAM by replacing the DRAM SIMMs on the CIP2. To upgrade the DRAM

on a CIP2, use either MEM-CIP-64M(=) or MEM-CIP-128M(=). DRAM SIMMs must be upgraded

or replaced in the ﬁeld by a Cisco-certiﬁed maintenance provider only.

Following is the procedure for replacing DRAM SIMMs.

Note If you have a Y cable attachment for bus and tag, vary ofﬂine the host channel to which the

PCA is attached and place the select/bypass switch on the Y cable in bypass mode. (See Figure 1 on

page 3.) For instructions on how to vary ofﬂine, refer to your operating system’s documentation.

Step 1 Attach an ESD-preventive wrist strap between you and the chassis.

Step 2 Disconnect all cables from the CIP2 and remove it from the chassis using the procedure

in the section “Removing a CIP2” on page 3.

Step 3 Place the CIP2 on a ﬂat surface (preferably an antistatic mat or foam), turn it so it is in

the position shown in Figure 4, and locate the DRAM SIMMs.

Step 4 Reattach the ESD-preventive wrist strap between you and the CIP2 carrier or the

antistatic mat or foam. (We recommend that you attach the ESD-preventive wrist strap to

the CIP2 carrier.)

Figure 4 Orientation of DRAM SIMMs on the CIP2 (Partial Overhead View)

DRAM SIMMs

H2532

Front of CIP

Upgrading DRAM on the CIP2 7

Upgrading DRAM on the CIP2

Step 5 Remove the SIMM by pulling outward on the connectors to unlatch it, as shown in

Figure 5. Be careful not to break the holders on the SIMM connector.

Step 6 Carefully lift the SIMM out of the SIMM socket.

Figure 5 Removing and Replacing DRAM SIMMs

Step 7 Using the SIMM orientation shown in Figure 5, position the new SIMM so that the

polarization notch is located at the right end of the SIMM socket.

Step 8 Insert the new SIMM by sliding the end with the metal ﬁngers into the SIMM connector

socket at approximately a 45-degree angle to the system card. Gently rock the SIMM

back into place until the latch on either side snaps into place. Do not use excessive force

or the connector could break.

Caution To prevent damage, do not push on the center of the SIMMs. Handle each SIMM with

care.

Step 9 Repeat steps 4 through 6 for the second SIMM.

Step 10 Reinstall the CIP2 in the chassis using the procedure in the section “Installing a CIP2” on

page 8.

If error messages relating to memory are displayed once power to the chassis is turned

back on, or the CIP2 card is installed in a chassis that is already on, repeat steps 1 through

8, taking care to ﬁrmly reseat each SIMM in its socket.

This completes the procedure for replacing DRAM SIMMs.

Polarization notch

DRAM SIMM card

Pull the tabs away with 

your thumbs, bracing your 

forefingers against the 

posts. Raise the SIMM 

to a vertical position.

H2463

8Upgrading DRAM on the CIP2

Upgrading DRAM on the CIP2

Installing a CIP2 Follow these steps to install the CIP2 in the router:

Step 1 Attach an ESD-preventive wrist strap between you and the chassis.

Step 2 Hold the CIP2 handle with one hand and placing your other hand under the carrier to

support the CIP2, guide it into the slot. Avoid touching the motherboard, adapters, or pins.

Step 3 Place the back of the CIP2 in the slot and align the notches along the edges of the carrier

with the grooves in the slot. (See Figure 3a on page 5.)

Step 4 Keep the carrier parallel to the backplane and carefully slide the CIP2 into the slot until

the back of the faceplate touches the ejector levers, then stop. (See Figure 3b on page 5.)

Caution Always use the ejector levers when installing or removing interface processor modules. A

module that is partially seated in the backplane will cause the system to halt and subsequently crash,

and shoving or slamming the interface processor into the slot can damage the backplane and pins.

Step 5 Using the thumb and foreﬁnger of each hand to pinch each ejector lever, simultaneously

push both ejector levers inward (toward the interface ports) until they snap into place and

are parallel to the faceplate. (See Figure 3c on page 5.)

Step 6 Use a screwdriver to tighten the two captive screws on the interface processor faceplate.

(See Figure 3a on page 5.) This prevents the interface processor from becoming partially

dislodged from the backplane and ensures proper EMI shielding. (These screws must be

tightened to meet EMI speciﬁcations.)

Step 7 If you have a PCA, reattach the PCA connector of the Y cable. (See Figure 6.)

Figure 6 Attaching the Y Cable to the PCA Connector—V-Type Cables Not Shown

Note If there are only ECAs attached to your CIP2, proceed to the section “Attaching the ESCON

Cable to the Host Channel” on page 10.

Single PCA

H2450

PCA connector

From host or mainframe

(male, dark gray or black)

To next control 

unit or terminator

(female, light gray)

Upgrading DRAM on the CIP2 9

Upgrading DRAM on the CIP2

Step 8 Place the select/bypass switch in select mode. (See Figure 7.) The select/bypass switch

marked S(for select mode) and B(for bypass mode) is located on the rear of the PCA

connector. (See Figure 7.) The select/bypass switch is required to allow the cable to be

separated from the PCA without “opening” the select-out loop.

Caution To prevent halting or otherwise affecting the mainframe operating system, verify that the

select/bypass switch is in bypass mode before you remove the PCA connector from the CIP2.

Figure 7 Select/Bypass Switch on Rear of PCA Connector (CAB-PCA-Y), Bypass Mode Shown

Step 9 Using the no shutdown command, turn on the CIP2 interfaces; otherwise, errors will

occur.

Step 10 Vary online the addresses assigned to the PCA. For instructions on how to vary online,

refer to the documentation for your operating system.

Note All other V-type bus and tag cables that were attached to the Y cable should still be attached.

If strain relief was removed in order to disconnect the Y cable and remove the CIP2, make certain

that all strain relief is replaced after you reconnect the Y cable.

The CIP2 installation is complete for CIP2s with PCAs. For CIP2s with ECAs, proceed to the

section “Attaching the ESCON Cable to the Host Channel” on page 10. If you have no ECAs,

proceed to the section “Checking the DRAM Upgrade” on page 11.

H2445

10 Upgrading DRAM on the CIP2

Upgrading DRAM on the CIP2

Attaching the ESCON Cable to the Host Channel

Following is the procedure for attaching the ECA to the host channel:

Step 1 If necessary or not already done, vary ofﬂine the host channel to which the ECA will be

attached. (Vary ofﬂine the addresses assigned to the ECA.) For instructions on how to vary

ofﬂine, refer to the documentation for your operating system.

Step 2 Attach an ESCON cable between the ECA and the host channel or ESCON Director. (See

Figure 8.)

Figure 8 Attaching an ESCON Cable to the ECA Connector

Step 3 Vary the host channel online. (Vary online the addresses assigned to the ECA.) For

instructions on how to vary online, refer to the documentation for your operating system.

Step 4 Using the noshutdowncommand, turn on the CIP2 interfaces; otherwise, errors will occur.

This completes the procedures for upgrading DRAM on the CIP2 motherboard.

Single ECA

H2453

To an ESCON Director (switch)

or host CPU

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