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New Member

PRI cable length

Hi,

I am having a new IP Telephony installation. I am getting a new voice PRI from my provider. My provider is asking me what is the maximum length of cable he can have from his mux to my voice gateway. Can anyone have any idea on this?

Thanks,

Pete

3 REPLIES
Hall of Fame Super Gold

Re: PRI cable length

That depends by cable attenuation and other factors, but consider safe 450 ft for T1.

Hope this helps, please rate post if it does!

New Member

Re: PRI cable length

Hi Paulo,

Can you tell me what will be suggested length for E1?

Thanks,

Pete

Hall of Fame Super Red

Re: PRI cable length

Hi Pete,

Here is a couple of docs to go along with Paolo's good info (congrats Paolo for your recent acheivements! 5 points for you);

Based on;

VWIC2-1MFT-T1/E1 1-Port T1/E1 Multiflex Trunk Voice/WAN Interface Card

VWIC2-2MFT-T1/E1 2-Port T1/E1 Multiflex Trunk Voice/WAN Interface Card

Selectable DSX-1 cable length in increments from 0 to 655 feet in DSU mode

http://www.cisco.com/en/US/products/ps5855/products_data_sheet0900aecd8028d2db.html

Commands are shown in this doc;

http://www.cisco.com/en/US/products/sw/iosswrel/ps5207/products_feature_guide09186a00801ea415.html#wp1064789

Hope this helps!

Rob

PS: usually 50 to 100 feet is all the Telco needs :)

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