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choosing proper WAN interface card...need help.

Hello!

I've got a 3845 ISR at the edge of my network.

ISP gives me E1, interfaced with V.35.

What network card/module and cable I should use for my ISR to connect E1 via v.35 interface on the PE hardware?

At first glance I look for WIC-1T or HWIC-4T, or HWIC-4A/S.

What for cable, I suppose that ISP is DCE, while my (H)WIC is DTE, so the cable will be CAB-SS-V35MT or

CAB-SS-V35FC ?

Thanks, WBR

Alex

DAO21-RIPE
2 ACCEPTED SOLUTIONS

Accepted Solutions
Hall of Fame Super Bronze

Re: choosing proper WAN interface card...need help.

WIC-1T is End Of Sale and its replacement is HWIC-1T1

You will need a DTE cable CAB-SS-V35MT

http://www.cisco.com/en/US/prod/collateral/modules/ps5949/datasheet_c78-491363.html

Hall of Fame Super Bronze

Re: choosing proper WAN interface card...need help.

The E1 is handled by the external device.

Your router will only care about the serial connection from that device and the HWIC-1T will provide this for you.

As Paolo indicated, if you want to terminate the E1 on the router, then you need an E1 CSU/DSU,

http://www.cisco.com/en/US/prod/collateral/modules/ps5949/product_data_sheet0900aecd80710c77.html , not a serial interface as your original request indicates..

4 REPLIES
Hall of Fame Super Bronze

Re: choosing proper WAN interface card...need help.

WIC-1T is End Of Sale and its replacement is HWIC-1T1

You will need a DTE cable CAB-SS-V35MT

http://www.cisco.com/en/US/prod/collateral/modules/ps5949/datasheet_c78-491363.html

New Member

Re: choosing proper WAN interface card...need help.

Sorry,

Although HWIC-1T support synchronous maximum speed - 8 Mbps and V.35 serial protocol, I'm not

sure about handling E1 stream (2,048 Mbps, while T1 - 1,544 Mbps). ?

DAO21-RIPE
Hall of Fame Super Bronze

Re: choosing proper WAN interface card...need help.

The E1 is handled by the external device.

Your router will only care about the serial connection from that device and the HWIC-1T will provide this for you.

As Paolo indicated, if you want to terminate the E1 on the router, then you need an E1 CSU/DSU,

http://www.cisco.com/en/US/prod/collateral/modules/ps5949/product_data_sheet0900aecd80710c77.html , not a serial interface as your original request indicates..

Hall of Fame Super Gold

Re: choosing proper WAN interface card...need help.

Ask ISP to eliminate the V35 converter.

Thsi way you will have one device less, and will be able to monitor the real performances of the E1 circuit.

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