Cisco 2951 Memory Slots

  
  • Cisco DNA Software Demo Series: Software-Defined AccessRegister nowWednesday, January 27, 202110:00AM Pacific Standard Time (San Francisco, GMT-08:00) Secure and automate your networkCisco Software-Defined Access is the industry’s first intent-based netwo.
  • AddOn 512MB Cisco MEM-2951-512U1GB Compatible DRAM - DDR2 - module - 512 MB - DIMM 240-pin - registered overview and full product specs on CNET.

We still receive quite a few POs on the 2900 series of ISRs from Cisco and even more hits at our website from users looking for information.

Please note that Apple, Compaq, Cisco, Dell, IBM, HP, Maxtor, Fujitsu, Seagate, Sun or any item that is not a 3D memory product once processed can not be cancelled or returned for credit. There may be a restocking fee of minimum $ 25 or up to 25% on certain products which differs from product to product.

We put this comparison matrix together to help with the latter.

This info is also available elsewhere, but we have summarized this chart to show what people usually ask us about.

Of course, if we left anything out that you need, or if you have other questions, our Cisco experts would love to hear from you at 855-932-6627 or cisco@maximummidrange.com

Cisco 2951 Password Recovery

Cisco Comparison Matrix ISRs 2901, 2911, 2921, 2951

Integrated Services RouterCisco 2901Cisco 2911Cisco 2921Cisco 2951
Hardware-Based Cryptography and AccelerationYesSameSameSame
Cisco Unified SRST Sessions3550100250
Cisco Unified CCME Sessions3550100150
WAN 10/100/1000 Ports2333
RJ-45-Based Ports2333
SFP-Based Ports0011
Service Module Slots0112
Double-Wide Service Module Slots0011
EHWIC Slots4SameSameSame
Double-Wide EHWIC Slots2SameSameSame
ISM Slots1SameSameSame
Onboard DSP (PVDM) Slots2233
Memory DDR2 ECC DRAM - Default512 MBSameSameSame
Memory (DDR2 ECC DRAM) - Maximum2 GBSameSameSame
Compact Flash (External) - Slot 0256 MBSameSameSame
Compact Flash (External) - Slot 1noneSameSameSame
Compact Flash (External) - Slot 04 GBSameSameSame
Compact Flash (External) - Slot 14 GBSameSameSame
USB 2.0 Flash Memory Slots (Type A)2SameSameSame
USB Console Port (Type B)1SameSameSame
Serial Console Port1SameSameSame
Serial Auxiliary Port1SameSameSame
Power-Supply OptionsAC and PoEAC, PoE, and DCAC, PoE, and DCAC, PoE, and DC
RPS Support (External)NoCisco RPS 2300Cisco RPS 2300Cisco RPS 2300
Typical Power (No Modules) (Watts)40506070
Max Power with AC Power Supply150210320340
Max Power with PoE Power Supply175250370405
Max Power with DC-PoE Power SupplyN/A140N/AN/A

Table Of Contents


Installing and Replacing CompactFlash Memory Cards on Cisco 1900 Series Routers

This document describes installing and replacing CompactFlash (CF) memory cards in Cisco 1941 integrated services routers. You can perform these procedures when the router has been installed in its working location with all power and interface cables connected. This document contains the following sections:

•Preventing Electrostatic Discharge Damage

•Removing a CompactFlash Memory Card

•Installing a CompactFlash Memory Card

Preventing Electrostatic Discharge Damage

CompactFlash memory cards are sensitive to electrostatic discharge (ESD) damage. ESD damage, which can occur when electronic cards or components are handled improperly, results in intermittent or complete failures.

Cisco 2951 memory slots softwareCisco 2951 Memory Slots

To prevent ESD damage, follow these guidelines:

•Always use an ESD wrist or ankle strap and ensure that it makes good skin contact.

•Connect the equipment end of the strap to an unfinished chassis surface.

•Place a removed CompactFlash memory card on an antistatic surface or in a static shielding bag. If the card will be returned to the factory, immediately place it in a static shielding bag.

•Avoid contact between the card and clothing. The wrist strap protects the card from ESD voltages on the body only; ESD voltages on clothing can still cause damage.

•Do not remove the wrist strap until the installation is complete.

Caution For safety, periodically check the resistance value of the antistatic strap. The measurement should be between 1 and 10 megohms (Mohms).

Removing a CompactFlash Memory Card

To remove a CompactFlash memory card from the chassis, perform the following steps. See Figure 8-2.

Caution Do not remove a CompactFlash memory card from the chassis while it is being accessed. The CF LED blinks to indicate when flash memory is being accessed. Removing the CompactFlash memory card from the router while flash memory is being accessed can cause data corruption and erratic operation.

Step 1 Remove the CompactFlash cover by placing a flat screwdriver in the slot and pushing sideways against the tension to release the cover door. (See Figure 8-1 and Figure 8-3.)

Figure 8-1

Inserting Screwdriver in to the CompactFlash Cover

Figure 8-2

Removing the CompactFlash Cover

Step 2 Press the ejector button next to the CompactFlash memory card. The ejector button moves outward so that it projects from the panel.

Cisco 2951 specs

Step 3 Press the ejector button again. See Figure 8-3. This ejects the CompactFlash memory card part-way out of its slot.

Step 4 Pull the CompactFlash memory card out of its slot.

Step 5 Push the ejector button in until the button is flush with the bezel.

Caution To prevent damage to the ejector mechanism, the ejector button must remain pressed all the way in (flush against the bezel) when not being used to eject a CompactFlash memory card.

Figure 8-3 CompactFlash Memory Card Slot in Cisco 1900 Series Routers

Ejector button

2

CompactFlash slot

CF LED

4

Cisco 2951 Memory Slots Upgrade


Cisco

Cisco 2951 Memory Slots App

Installing a CompactFlash Memory Card

Cisco 2951 Router Datasheet

To install a CompactFlash memory card, perform the following steps (see Figure 8-3):

Step 1 Make sure that the ejector button is fully seated so that it does not project out from the panel.

Note If the ejector button is projecting out from the panel, push it in until it is flush with the bezel.

Step 2 Insert the CompactFlash memory card into the slot until it is fully seated. The ejector button remains flush with the panel.

Note If the ejector button is projecting from the panel after you insert the CompactFlash memory card, remove the CompactFlash memory card, press the ejector button until it clicks, and reinsert the CompactFlash memory card.

Caution To prevent damage to the ejector mechanism, the ejector button must remain fully seated when not being used to eject a CompactFlash memory card.

Step 3 Replace the CompactFlash cover by pushing it in place until it snaps in place.