Cisco 4321 ISR User Manual

6-28
Hardware Installation Guide for Cisco 4000 Series Integrated Services Routers
OL-32185-02
Chapter 6 Install and Upgrade Internal Modules and FRUs
Install and Remove DDR DIMMs on Cisco 4400 or 4300 Series ISRs
Figure 6-21 DIMM Showing Polarization Notch
Step 6
Insert the DIMM into the connector one side at a time. Figure 6-22 shows what to avoid while handling
a DIMM.
Figure 6-22 Handle the DIMMs
Step 7
Firmly press the DIMM into the connector until the latches close onto the DIMM. Ensure that both
latches rotate to the closed position against the DIMM. See Figure 6-23.
250944
1
280360

Cisco 4321 ISR Specifications

General

Form Factor	Rack-mountable
Flash Memory	4 GB
Operating Temperature	0°C to 40°C
Data Link Protocol	Ethernet, Fast Ethernet, Gigabit Ethernet
Console Port	RJ-45
Auxiliary Port	1x RJ-45
Memory	4 GB
Expansion Slots	1x SM
Storage Temperature	-20°C to 65°C
Humidity	10 - 85% (non-condensing)
Features	VPN support, Firewall, QoS
Remote Management Protocol	SNMP, CLI
Network/Transport Protocol	IPv6
Maximum Throughput	50 Mbps