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
Installing an ISM
Before you install an ISM, remove the chassis cover as described in the “Opening and Closing the
Chassis” section on page 5.
To install an ISM, perform the following procedure. To complete this procedure, you need a number 2
Phillips screwdriver or flat-blade screwdriver, and a 1/4-inch nut driver or wrench.
Installing an ISM in a Cisco 1900 Series Router
The Cisco 1900 series routers have one ISM connector on the system board. To install the ISM, perform
the following steps. The ISM is an optional upgrade. The procedure below assumes you are upgrading
your router to include an ISM.
Step 1 Find the location of the four screws on the system board near the ISM connector. When no ISM is
installed the four screws are holding the system board in place. See “Locating Modules” section on
page 7.
Figure 8 System Board ISM Screws
1 ISM screw
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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)