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The Cisco 3600 series routers use a DRAM memory conﬁguration that is different from other Cisco routers. Unlike the Cisco

4000 series routers, for example, which have separate physical locations for processor memory and packet memory, the Cisco

3600 series routers use one pool of DRAM memory. The DRAM is partitioned into processor memory and packet memory

areas. For example, the memory of a 16 MB DRAM conﬁguration is split into 12 MB for processor memory and 4 MB for

the packet memory.

The Cisco 3600 allows you to load new system images using a PCMCIA Flash memory card. You can also load images from

a local or remote PC through the console or auxiliary ports using the Xmodem or Ymodem protocols.

Note For guidelines on how to order the proper amount of memory to support different network module conﬁgurations,

refer to product bulletin 544, 3600 Series Memory Options and Conﬁguration Guide. This document is accessible from Cisco

Connection On-line (CCO). The URL is

http://www.cisco.com/warp/public/cc/cisco/mkt/access/3600/prodlit/544_pp.htm

Software

Table 18-93: Software Speciﬁcations for Cisco 3600 Series

Ordering Information

Product Part Numbers

All part descriptions and part numbers for Cisco products can be accessed using the online Cisco Pricing Tool at

http://www.cisco.com/cgi-bin/order/pricing_root.pl

Options for the Cisco 3600 Series

For conﬁguration and ordering information for network modules, WAN interface cards, and voice/fax interface cards for the

Cisco 3600 series routers, see the

Description Speciﬁcation

Supported Cisco IOS software Cisco 3620/40: Release 11.1 AA, Release 11.2 P, 11.3, and 11.3T, 12.0, 12.0T

Cisco 3660: Release 12.0(5)T

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Cisco 3620 User Manual Page 7