Serial HWIC for the Cisco 1861 router

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Sep 2nd, 2010
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I am planning to replace an old 7500 router with a smaller one.


The question I have is that the 7500 has a 4 port serial g703 unbalanced card (PA-4E1G/75 15-pin with D-shell (DB-15) receptacles on the port adapters and which operate in full-duplex mode at the E1 speed of 2.048-Mbps) and I am not sure what HWIC will do the same job for the Cisco 1861 router. Does anybody know?


Thanks in advance.

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paolo bevilacqua Thu, 09/02/2010 - 16:06
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Can you configure the other side of the circuit for framed 30 or 31 channels ? That would allow you use even a vwic 1st generation, non capable of unframed mode.

a.maldonado Mon, 09/20/2010 - 07:20
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Thank you for your comment Paolo, and apologies for the late reply. I was away for two weeks and I am just catching up with things.


To answer your question: No I can't do that. The circuit is E1 and the router I want to replace is a 7500 with a PA-4E1G703/G704 75 omh unbalanced. This type of interface uses the 15 pin-D shell at the router end, and two BNC connectros with coax at the other end. The cable used is CAB-E1-BNC= as shwon below.





My question is, what interface of the Cisco 1861 router can I use to connect this E1 circuit and/or what changes do I need to make to the circuit presentation to be able to use this router. The circuit is currently presented with two BNC female connectors


Thank you.


Arturo

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