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 6 Installing a DRAM UDIMM
Step 7
When you finish installing modules, install the cover on the router. If necessary see the “Opening and
Closing the Chassis” section on page 5.
Installing and Removing ISMs
Internal Service Modules (ISMs) plug into an ISM connector on the system board as described in the
“Installing an ISM” section on page 12.
Before you remove or install an ISM, remove the chassis cover as described in the “Opening and Closing
the Chassis” section on page 5.
Note In the 1941W a WLAN module is installed in the ISM connector. It is not user removable.
Caution When you remove or install an ISM, always wear an ESD-preventive wrist strap, and ensure that it makes
good contact with your skin. Connect the equipment end of the wrist strap to the metal part of the chassis.
Caution Handle ISMs by the edges only. ISMs are ESD-sensitive components and can be damaged by
mishandling.
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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)