E1 Channelized-interfaces timeslots on 2921

[lee.roberts]

Hi all,

I currently have a VWIC3-2MFT-T1/E1 card.

This card does not allow me to configure more than 2 channel-groups on my E1 port.

I need to use a channelized E1 with 10 or so different channel-groups (10 different conections for branch offices).

From what Ive read the card i need is the HWIC-2CE1T1-PRI.

But i need to be sure (before buying this expensive card) that this will allow me to configure all the 10 channel-groups in 1 E1 port.

I am also not sure if there is another limiting factor that could truncate the creation of so many channel-groups, my router is a 2921 and im sure i read somewhere that the 2921 has a limitation on channel-groups.

If anyone could please advice on minimum router and card requirements to get this to work i would be very grateful.

Thanks.

[Georg Pauwen · Accepted solution]

Hello,

the HWIC-2CE1T1-PRI definitely supports your 10 channel groups:

Here is the number of DS-0 channels supported by Cisco Channelized T1/E1 and ISDN PRI HWICs and Network Modules. Each port can support up to 24 channels for T1 and 31 channels for E1.

Type of Module
Cisco 1841 thru 3945E
HWIC-1CE1T1-PRI
Up to 32 channels on each card
HWIC-2CE1T1-PRI
Up to 64 channels on each card
NM-8CE1T1-PRI
Up to 128 channels on each card (1841 thru 3845, up to 256 channels on the 3945E, 3925E, 3945, 3925)

[lee.roberts]

So my Cisco 2921 will not cause any problems with the right card?

[Georg Pauwen]

Hello,

your 2921 supports 4 of those cards (HWIC-2CE1T1-PRI). You will be fine.

Here is the link to the official Cisco doc (scroll down to Table 3 and 4):

http://www.cisco.com/c/en/us/products/collateral/interfaces-modules/network-modules/product_data_sheet0900aecd80710c88.html

[lee.roberts]

Thank you very much for your help, much appreciated.

I will go ahead and order the HWIC-2CE1T1-PRI card and report back if there are any issues.

Thanks again.

[lee.roberts]

Worked perfectly.

Thanks again for the advice George.