Cisco 1905 User Manual

Installing and Upgrading Internal Modules and FRUs in Cisco 1900 Series ISRs
Modules Internal to the Cisco 1941 Router
10
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 1905 Specifications

General

Product Type	Router
Form Factor	Desktop
Connectivity Technology	Wired
Data Link Protocol	Ethernet, Fast Ethernet, Gigabit Ethernet
RAM	256 MB
Flash Memory	256 MB
Weight	2.2 lbs
Firewall	Yes
Wireless	No
Power Supply	External power adapter
USB Ports	1 x USB
Network / Transport Protocol	L2TP, PPPoE, IPSec
Remote Management Protocol	HTTP, HTTPS, SNMP, SSH, Telnet
Features	VPN support, VLAN support, DHCP server, firewall protection, NAT support, Quality of Service (QoS)
Compliant Standards	IEEE 802.1Q