From: Jonathan V Hays (jhays@jtan.com)
Date: Sat Apr 12 2003 - 19:47:52 GMT-3
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
> Behalf Of Raminder Sarna
> Sent: Saturday, April 12, 2003 4:12 AM
> To: ccielab@groupstudy.com
> Subject: Request Advice on MC3810
>
>
> hi all,
> im reading cisco manuals on MC 3810, can someone
> please tell me what is the meaning of 5 in 1 serial
> port .. documentation mentions the fact that the 2
> serial i/o serial interfaces in mc 3810 are also known
> as 5 in 1 serial DB 60 ....what does that mean ?
>
> please advise on another concept called " tie
> line/trunk " ..appreciate any hyperlinks explaingin
> this concept .
>
> thanks
I would encourage you to ask questions about hard-to-find or
difficult-to-find questions but the following link was the first hit
when I searched www.cisco.com with the string "5 in 1 serial". You are
not doing basic research.
http://www.cisco.com/en/US/products/hw/iad/ps417/products_regulatory_app
rovals_and_compliance09186a00800c975b.html
That said, the "5 in 1" simply means the DB-60 serial port can act as
several different types of port, depending on the remote end of the
cable (and port) which is connected to the DB-60 port. See below for an
extract from the above URL:
---"The serial port on the 5 in 1 Serial Port Adapter uses a custom 60-pin connector. The following port configurations are supported:
X.21 port for connection to leased lines at up to 2048 kbps or X.25 Packet Switched service at up to 64 kbps.
V.24 port for connection to X.21bis leased lines or X.25 Packet Switched service at up to 19.2 kbps.
V.35 port for connection to X.21bis leased lines or X.25 Packet Switched service at up to 64 kbps.
V.36 port for connection to X.25 Packet Switched service at up to 64 kbps.
The final configuration of the serial interface is dependent on the Serial Port Adapter Cable used. The serial WAN interface card incorporates cable sensing circuitry to detect the presence of a specific adapter cable for each service. Further configuration is not necessary. "
--- Generally, a tie line or trunk, is a telco term referring to the circuits connecting central offices (CO), or connecting two PBXs, as opposed to circuits connecting your business/home to the CO.
Again, when I put the string "what is a tie line" into Google I came up with a lot of good hits. Please feel free to ask questions, but please do a basic search before doing so.
Thanks.
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