Jan 7, 2013
Cisco 3945 Slot Numbering Chart
Router configuration. Manufacturer Cisco Systems, Inc Manufacturer Part Number C3900-SPE250/K9 Product Type Control processor Supported Platforms Cisco 3945E ISR Networking Form Factor Plug-in module Connectivity Technology Wired Features Hardware encryption Connectivity Slots Expansion Slots Total (Free) 2 ( 2 ) x CompactFlash Card 3 ( 3 ) x EHWIC 2 ( 2 ) x SFP (mini-GBIC). (5) AUX port (11) Service module slots (6) SFP 1 and SFP 2 (2, top) Modularity Features Table 2 shows modules for this router. Models Description C3900-SPE150/K9 Cisco Services Performance Engine 150 for Cisco 3945 ISR. (It's a configured item in the CISCO3945/K9.) SM-ES3G-16-P. Cisco 3945; Cisco 3945e; Cisco 3925; Cisco 3925e; Cisco 2951; The modules can be plugged in the following DWSM slots of the following platforms: On Cisco 3945 and Cisco 3945e - only on slot 4. On Cisco 3925, Cisc0 3925e and Cisco 2951 - only on slot 2. Table 2-1 shows the comparison between Cisco SM-D-72FXS and SM-D-48FXS-E. Cisco 3945-SEC/K9 Modular Router, C3900-SPE150/K9, 3-Port 10/100/1000 Gigabit Ethernet, 4 Enhanced High-Speed WAN Interface Card EHWIC Slots, 3 DSP Slots, 1 Internal Service Module ISM Slot, 4 Service Module Slots, 256MB Compact Flash, 1GB DRAM, Security Bundle: Status: Current Product.
Cisco 3945 Slot Numbering Software
How to find the maximum number of PRIs supported on a given router:
Let's say I need to find maximum number of PRIs I can connect on a C3945.
I see that I could buy for example (4) VWIC3-4MFT-T1/E1. The C3945 comes with (4) EHWICs where such VWIC3-4MFT-T1/E1 cards can be inserted. Since each VWIC3 has (4) ports each, that would be total of 16 PRIs.
Then let's say I want to put more Service Modules and allow me to expand it further. The C3945 can support up to (4) service modules.
If I want to put the maximum number of PRIs possible, is it right I could install (4) NM-8CE1T1-PRI. That would give me maximum of 48 PRIs in a C3945.