Cisco 1941 Installing And Upgrading

Installing and Upgrading Internal Modules and FRUs in Cisco 1900 Series ISRs
Modules Internal to the Cisco 1941 Router
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Installing and Upgrading Internal Modules and FRUs in Cisco 1900 Series ISRs
Figure 5 Removing a DRAM UDIMM
Step 4 Place the UDIMM in an antistatic bag to protect it from ESD damage.
Installing a DRAM UDIMM
To install a DRAM UDIMM in a Cisco 1900 series router follow these steps:
Step 1 Remove the cover to gain access to the system board. If necessary see the “Opening and Closing the
Chassis” section on page 5.
Step 2 Locate the DRAM UDIMM connector on the system board. See the “Locating Modules” section on
page 7, for the location of the UDIMM connectors.
Step 3 Make sure that both latches on the UDIMM connector are in the open position.
Step 4 Orient the UDIMM so that the polarization notch lines up with the polarization key on the connector.
(See Figure 4.)
Step 5 Insert the UDIMM carefully into the connector.
Step 6 Carefully and firmly press the DRAM UDIMM into the connector until the latches close onto the
UDIMM. Make sure that both latches rotate to the closed position against the UDIMM. (See Figure 6.)
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Cisco 1941 Specifications

General

Product Type	Router
Product Series	1900
Model	1941
Connectivity Technology	Wired
Data Link Protocol	Ethernet, Fast Ethernet, Gigabit Ethernet
Flash Memory	256 MB
Power Supply	Internal power supply
Power	AC 120/230 V (50/60 Hz)
Operating System	Cisco IOS
Product Name	Cisco 1941
Form Factor	Rack-mountable
Network/Transport Protocol	IPSec, L2TP, PPPoE, PPPoA
Remote Management Protocol	SNMP, Telnet, SSH, HTTP, HTTPS
Features	Firewall protection, VPN support, VLAN support
Interfaces	2 x 10/100/1000Base-T Ethernet WAN, 2 x USB 2.0
Expansion Slots	2 x EHWIC 1 x ISM slot
Wireless LAN	No
RAM	512 MB (installed) / 768 MB (max)