Re: T1/E1 PRI testing

From: Peter Whittle (peter@xxxxxxxxxxxxxxxxxxxxxxxxxxx)
Date: Mon Apr 09 2001 - 15:46:20 GMT-3


   
Hi Tariq,

I am in the process of setting up a Euracom 262 in my home lab. (This
has 4 Bri ports, 1 external network facing ie to CO) the other 3 can be
configured either for internal or external use. In our case internal
use. It also has 6 POTS ports - in case you want to use stone-age
modems!

The Euracom supports multipoint on the S bus so although you only get 2
B channels per S bus you can plug up to 4 S bus devices (routers, TAs,
phones) into each port and make calls between any two at a time or a 2 B
call from any one of them to a device on another S bus.

           -----------
           ! !------S1 to Telco CO
    S2-----! Euracom !
           ! PABX !
    S3-----! !
           ! !
    S4-----! !
           !---------!

[ Each S bus S2, S3, S4 will support up to 4 S bus devices, or up to 8 S
bus devices with 100R Bus terminating resistors ie a total of 12 or 24
devices. However, remember that you only have a total of 6 B channels
and a maximum of 2 B channels on each S bus. The connections are
terminal screw blocks so you need some RJ45 sockets or flying leads]

If you want to do multilink -PPP that is a feature of the end device not
the ISDN switch. As far as the ISDN switch is concerned a multilink
call is 2 separate independent calls that happen to originate on a
single device and terminate on a different single device.

I am intending to connect up a 2503, 2620 with WIC-BRi, 4500M with NP-
4B.

The E1 to Bri device that I mentioned is an Adept-Q, it has 4 x Bri
ports and a single E1 port. I do not have one of these as yet I am
saving up! (They are about #1500, not to mention the cost of an NP-1CE1
or NM-1CE1 module). According to the spec sheet it will act as a mini 8
channel digital PABX.

 URL http://www.comprador.co.uk/adept-q.htm

BTW which stream are you taking? I am working on the ISP Dial.

Where abouts are you located?

I am based in the Midlands

Peter

In message <NCBBJKIDLHALHOMPKNLNOEKECGAA.tariq_sharif@btinternet.com>,
Tariq Sharif <tariq_sharif@btinternet.com> writes
>Hi Peter
>
>Thanks for the info. Have you use any Eurocom model PBXs? Can they do PPP
>mutilink, call back etc?
>
>Many thanks & regards.
>
>Tariq Sharif
>
>
>-----Original Message-----
>From: Peter Whittle [mailto:peter@whittle-systems.demon.co.uk]
>Sent: 08 April 2001 21:58
>To: Scott Morris
>Cc: 'Tariq Sharif'; 'Ccielab@Groupstudy. Com'
>Subject: Re: T1/E1 PRI testing
>
>
>Tariq,
>
>In principle no, you can't.
>
>However, if you are only interested in bearer capability voice then you
>have two choices: you need an NM-HDV + and NM-2V with VIC-BRI then you
>can set up a 3600 as a voice PABX and make calls between Bri and Pri
>devices. The Bri has to be a CO as the VIC-Bri (as far as I am aware)
>is only available in TE form. The Pri on the NM-HDV can be configured
>as either TE or as CO. Alternatively, you can do a similar thing with a
>MC3810 with BVM (Basic Rate Voice Module) and an E1 Multiflex trunk
>module.
>
>But by the time you have shelled out for that little lot you could have
>bought either a baby ISDN PABX, a simulator or even a protocol
>convertor.
>
>If you are looking at European standards you can get a 3 port Bri ISDN
>PABX for about 750
>
>Look at the Eurocom 182 or 262 Bri PABX www.ackermann.co.uk
>
>or you can get an E1 to Bri protocol convertor for about 1500. They
>offer a single E1 to 4 x Bri.
>
>
>In message <001301c0bf72$5f906750$11259ed0@BLACKHAWK>, Scott Morris
><smorris@mentortech.com> writes
>>Completely different framing techniques. So I'd say whoever told you this
>>is incorrect... There are functions that an ISDN switch performs that a
>PRI
>>CPE device isn't capable of.
>>
>>While it would be quite cool if this functionality WAS possible, I can't
>>think of any good technical reason that it is...
>>
>>Scott
>>
>>-----Original Message-----
>>From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
>>Tariq Sharif
>>Sent: Saturday, April 07, 2001 8:30 AM
>>To: Ccielab@Groupstudy. Com
>>Subject: T1/E1 PRI testing
>>
>>
>>Someone said with some IOS ver you can use T1/E1 PRI ISDN card to test ISDN
>>with BRI cards. So the PRI will act as ISDN switch for BRI routers to dial
>>in & out of or PRI can be dialed from BRI. Has anyone heard/tested this?
>>
>>Many thanks & regards.
>>
>>Tariq Sharif
>>
>>[GroupStudy.com removed an attachment of type application/ms-tnef which had
>>a name of winmail.dat]
>--
>Peter Whittle
>

--
Peter Whittle


This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:29:43 GMT-3