Cisco 1921 User Manual

Installing and Upgrading Internal Modules and FRUs in Cisco 1900 Series ISRs
Modules Internal to the Cisco 1941 Router
6
Installing and Upgrading Internal Modules and FRUs in Cisco 1900 Series ISRs
Figure 1 Removing the Chassis Screw
Note If the Cisco 1941 ISR has wireless antennas (Figure 2), you must first remove these by
unscrewing them counter clockwise.
Figure 2 Removing Wireless Antennas
Step 4
Turn the router back to its original position (top up).
Step 5 Pull the top of the router (which is facing up toward you) back from the bottom of the router.
1 Router cover fastening screws (4)
DO NOT REMOVE DURING
NETWORK OPERATION
DO NOT REMOVE DURING
NETWORK OPERATION
251367
1 Wireless antennas
GHz
SYS
ACT POE WLAN
2.4
5
199583
1
Cisco 1900 Series

Cisco 1921 Specifications

General

Product Type	Router
WAN Ports	2
Power Supply	AC 120/230 V (50/60 Hz)
Connectivity Technology	Wired
Data Link Protocol	Ethernet, Fast Ethernet, Gigabit Ethernet
Memory	256 MB DRAM
Flash Memory	128 MB
Expansion Slots	1 x ISM
USB Ports	2 x USB
Dimensions	4.4 x 33 x 24.9 cm
Network / Transport Protocol	IPSec
Remote Management Protocol	SNMP, Telnet, HTTP, HTTPS, SSH
Features	Firewall protection, VPN support
Compliant Standards	IEEE 802.1Q
Operating Temperature	0 to 40 °C
Storage Temperature	-20 to 65 °C
Humidity	10 to 85% (non-condensing)
Weight	3.5 kg
Performance	Up to 25 Mbps throughput