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Absolutely, the 3845 has 4 slots in the back that can accommodate the VWIC2-2MFT-T1/E1. &nbsp;<br />
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<a href="http://www.cisco.com/en/US/products/ps5856/index.html" rel="ugc">http://www.cisco.com/en/US/products/ps5856/index.html</a>&nbsp;- Check out the specs and if you look at the 3D model you can see this card is actually pictured in the back of the demo unit.<br />
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<a href="http://www.cisco.com/en/US/prod/collateral/routers/ps5855/product_data_sheet0900aecd8028d2db.html" rel="ugc">http://www.cisco.com/en/US/prod/collateral/routers/ps5855/product_data_sheet0900aecd8028d2db.html</a>&nbsp;- This shows you that it is compatible and you need to be on at least 12.3(14)T for it to work. &nbsp;<br />
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These are great routers. &nbsp;Very stable and dependable.
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Absolutely, the 3845 has 4 slots in the back that can accommodate the VWIC2-2MFT-T1/E1.  

http://www.cisco.com/en/US/products/ps5856/index.html [http://www.cisco.com/en/US/products/ps5856/index.html] - Check out the specs and if you look at the 3D model you can see this card is actually pictured in the back of the demo unit.

http://www.cisco.com/en/US/prod/collateral/routers/ps5855/product_data_sheet0900aecd8028d2db.html [http://www.cisco.com/en/US/prod/collateral/routers/ps5855/product_data_sheet0900aecd8028d2db.html] - This shows you that it is compatible and you need to be on at least 12.3(14)T for it to work.  

These are great routers.  Very stable and dependable.

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Thanks for the above information.. I have one more question on cisco 3845... they do not seem to have SM-NM-ADPTR like its counterpart cisco 3945... can yo please explain why?
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Thanks for the above information.. I have one more question on cisco 3845... they do not seem to have SM-NM-ADPTR like its counterpart cisco 3945... can yo please explain why?

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I think your guess is right, it is an adaptor for NM-1T3/E3 card, this card is used with C3845 and the new chassis would need this adaptor to fit the card.
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I think your guess is right, it is an adaptor for NM-1T3/E3 card, this card is used with C3845 and the new chassis would need this adaptor to fit the card.

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Hi ;<br />
I see that Cisco 3845 is used for E3/T3/100M ethernet deployment, Can it be used for nxT1 or nxE1 with vwic2-2mft cards? I have not seen such a deployment and was sure if the chassic can support wic cards?
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Hi ;
I see that Cisco 3845 is used for E3/T3/100M ethernet deployment, Can it be used for nxT1 or nxE1 with vwic2-2mft cards? I have not seen such a deployment and was sure if the chassic can support wic cards?

cisco vwic card on C3845

A router is a networking device that forwards data packets between computer networks. Routers perform the "traffic directing" functions on the Internet. The most familiar type of routers are home and small office cable or DSL routers that simply pass data, such as web pages, email, IM, and videos between computers and the Internet. More sophisticated routers, such as enterprise routers, connect large business or ISP networks up to the powerful core routers that forward data at high speed along the optical fiber lines of the Internet backbone. Though routers are typically dedicated hardware devices, use of software-based routers has grown increasingly common.

Routers

A switch is a device that filters and forwards packets of data between LAN segments. Switches operate at the data link layer or the network layer of the Open Systems Interconnection (OSI) Reference Model and therefore support any packet protocol. LANs that use switches to join segments are called switched LANs or, in the case of Ethernet networks, switched Ethernet LANs. A hub is a connection point for devices in a network. Hubs are commonly used to connect segments of a LAN. A hub contains multiple ports; when a packet arrives at one port, it is copied to the other ports so that all segments of the LAN can see all packets.

Switches / Hubs

Networking software modules are interfaced with a framework implemented on the machine's operating system that implements the networking functionality of the operating system. The best known frameworks are the TCP/IP model and the OSI model. Systems typically do not use a single protocol to handle a transmission. Instead they use a set of cooperating protocols, sometimes called a protocol family or protocol suite.[9] Some of the best known protocol suites include: IPX/SPX, X.25, AX.25, AppleTalk and TCP/IP. Other protocols indirectly related to networking include the hypertext transfer protocol (HTTP) and its related technologies, Dynamic Host Configuration Protocol (DHCP), Domain Name Server (DNS) and other Internet protocols.