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Is it possibel to add one more E1/ Module on 2811 Router ?

Dear All,


Can you tell me, is it possible to add one E1 / Module on 2811 Router. Will it support ? Is there any impact due to that?


HQ#sh ver
Cisco IOS Software, 2800 Software (C2800NM-ADVENTERPRISEK9-M), Version 12.4(17), RELEASE SOFTWARE (fc1)
Technical Support:
Copyright (c) 1986-2007 by Cisco Systems, Inc.
Compiled Fri 07-Sep-07 16:45 by prod_rel_team

ROM: System Bootstrap, Version 12.4(13r)T, RELEASE SOFTWARE (fc1)

HQ uptime is 47 weeks, 4 days, 20 hours, 11 minutes
System returned to ROM by power-on
System restarted at 19:02:23 mal Thu May 30 2013
System image file is "flash:c2800nm-adventerprisek9-mz.124-17.bin"

This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:

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Cisco 2811 (revision 53.51) with 247808K/14336K bytes of memory.
Processor board ID FHK1235F2W0
2 FastEthernet interfaces
62 Serial interfaces
2 Serial(sync/async) interfaces
2 Channelized E1/PRI ports
1 Virtual Private Network (VPN) Module
DRAM configuration is 64 bits wide with parity enabled.
239K bytes of non-volatile configuration memory.
62720K bytes of ATA CompactFlash (Read/Write)

Configuration register is 0x2102


HQ#sh inv
NAME: "2811 chassis", DESCR: "2811 chassis"
PID: CISCO2811         , VID: V05 , SN: FHK1235F2W0

NAME: "WAN Interface Card - Serial 2T", DESCR: "WAN Interface Card - Serial 2T"
PID: WIC-2T            , VID: V01, SN: 36569386   

NAME: "Two Port Channelized E1/T1/PRI with Integrated CSU", DESCR: "Two Port Channelized E1/T1/PRI with Integrated CSU"
PID: NM-2CE1T1-PRI     , VID: V01 , SN: FOC12250H31

Everyone's tags (1)

Cisco 2811 has 4 WAN slot:2

Cisco 2811 has 4 WAN slot:

  • 2 slot for HWIC, WIC, VWIC and VIC cards
  • 1 slot for WIC, VWIC and VIC cards
  • 1 slot for VWIC and VIC cards

and 1 NM slot (for NM and NME).


So it's not possible to add another NM-2CE1T1-PRI  module.

HWIC-4T1/E1 are not supported on 2811  so it's not a choice.

I think you can add:

  • VWIC2-1MFT-T1/E1  or VWIC2-2MFT-T1/E1
  • VWIC2-1MFT-G703 or VWIC2-2MFT-G703







PS: please grade if useful

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