05-22-2013 07:52 AM - edited 03-04-2019 07:58 PM
Hello,
I have some legacy (read: old) audio equipment that used leased lines to run, no way to convert them to IP internally. They have x.21 and v.35 interfaces on them.
Is there a way i could use something like an old 2600 series router and run it in reverse, like just using them as a media converter to shove the v.35 over into IP land?
I'm not interested in buying newest latest greatest (these audio codecs are upwards of $5k a pop to replace, x2 for a complete link), i'm just curious if i can turn a WIC-1T into the interface for these boxes and do a direct route to another 2600 on the other end with the same configuration.
This would essentially turn the WIC portion into the local side and the ethernet into the WAN side.
Thanks!
--
Alex Hartman
KVSC Radio
05-23-2013 05:42 AM
Alex,
That's a fascinating issue. I didn't know audio equipment came with x.21 and ethernet these days. Can I ask what particular audio codec you are working with?
I think that as long as you can get the codec to send data into the cisco router, and you have an ethernet network running between both routers, this will be entirely possible. The trickiest part will probably be getting the correct cable to connect the codec to the router. I don't believe the router has a notion of 'reverse'. It should be possible to get two serial devices to talk to each other separated by an ethernet network.
- Ken
P.S. After doing some more reading, it looks like you may be looking for a special network module that can do 'circuit emulation over IP', or 'CEoIP'. I think The NM-CEM-4SER is what you want, and it should work with the 2691 and 2600XM routers.
Q&A - NM-CER-4SER
http://www.cisco.com/en/US/products/hw/routers/ps274/products_qanda_item09186a0080204358.shtml
Datasheet - CEoIP
05-23-2013 12:20 PM
Ken,
Thanks for that. I'm using some older Musicam/CCS "CDQ2000" boxes. They only need 384k, not much in the grand scheme of things.
I was wondering about the CEoIP stuff, but this is for a volunteer project i'm working on and even at ebay prices, ($600) that's a bit cost prohibitive.
How about this?
CDQ2000--->Adtran CSU--->2600XM w/ WIC-1DSU-->Ethernet network--->2600XM w/ WIC-1DSU-->Adtran-->CDQ2000
The reason i'm posing these questions like this is because i have a stack of 2600's laying around and a stack of Adtran v.35 CSU/DSUs laying around i could wire them up in back-to-back mode and turn on "network emulation" on the WIC.
The question is, what is everything expecting to see? Obviously circuit encapsulation would be ideal so it's entirely transparent...
Thanks again!
--
Alex Hartman
KVSC Radio
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