Re: Help about E1
I'm afraid not ! Network Modules for 2600/3600 series were only capable of running Channelized mode. Newer HW code might support controller E1 3/7 channel-group 0 unframed command, but you have to check. Previous versions didn't support this. Regards, Ufuk. ** Thanks for your help. Now I still have some question: I buy a NM-2CE1U for 2600. It said that they are compatible with the International Telecommunication Union Telecommunication Standardization Sector (ITU-T) G.703/G.704 specifications, so i think that it can support G.703( the pure 2M channel?). Am i right? Thanks. ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Help about E1
Thanks for your help. Now I still have some question: I buy a NM-2CE1U for 2600. It said that they are compatible with the International Telecommunication Union Telecommunication Standardization Sector (ITU-T) G.703/G.704 specifications, so i think that it can support G.703( the pure 2M channel?). Am i right? Thanks. ""UFUK YASIBEYLI"" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > Hello, > > First of all, E1 stands for 2Mbps transmission. > > If your transmited information is carried in a frame ( check ITU G.704 > for details ) you can seperate 64Kbps "channels" out of this > 2Mbps signal. For example in a TDM infrastructure, you can direct each of these > 64K (or better to say n x 64K, 1<= n <= 31 ) channels to different TDM eggress > points. > This is called Channelized E1 (CE1). > With this framing, There are 32 x 64K channels, and channel 0 is used for > framing/synchronization > Channel 16 may be used for signalling if needed, depending on the use of E1 > circuit. > (For instance, if PBXs are connected via E1, Channel 16 is used for signalling, > however, > if WAN devices are connected via channels, Channel 16 may be used for an > additional > data channel instead of signalling. For this reason, you may carry a maximum of > 30 voice channels over an E1, but 31 x 64 K data channels may be carried) > > If infrastructure is not TDM, then you may not need to use 64K seperate > channels. > PDH/SDH infrastructure can be used in this case, and you can use pure > 2 Mbps channel. There is no synch or signalling channel loss. (There is no > channel.) > ( You may check ITU G.703 ) > > If your hardware is capable of carrying n x 64 K but not capable of channelizing > them > and not using multiple sub-interfaces over the same interface, then this > fraction of > n x 64K out of E1 is called Fractional-E1 > > Considering 7200 series routers, Cisco PA-4E1G/120 port adapter is a full rate > E1 card. > If you configure the controller as follows: > > controller E1 3/7 > channel-group 0 unframed > > then you can use Full rate 2Mbps. However if you configure : > > controller E1 3/7 > channel-group 1 timeslots 1-5 > > then you have a Fractional E1 interface with a bandwidth of 320Kbps (5x64) > (Unfortunately, this PA does not support multiple channel groups and it is not > channelized. > > PA-MC-2E1/120, on the other hand, supports Channelized-E1 ( and also full-rate > E1 with the above commands) > > controller E1 3/1 > channel-group 1 timeslots 1-15 > channel-group 17 timeslots 17 > channel-group 18 timeslots 18 > > and we have 3 subinterfaces of 960Kbps, 64Kbps, 64Kbps respectively. > > Hope this helps and not long enough to make it more confusing :-) > > Regards, > Ufuk. > > > > > > > > "vtam" <[EMAIL PROTECTED]> on 31.08.2000 09:35:34 > > Department: > > Please respond to "vtam" <[EMAIL PROTECTED]> > > To: [EMAIL PROTECTED] > cc:(bcc: UFUK YASIBEYLI/FINANSBANK) > > Subject: Help about E1 > > > > > There are several E1 standard like Channelized E1, Fractional E1, Full rate > E1. What is the different between them? And can i use channelized E1 card > to connect Fractional E1, Full rate E1? Thanks. > > > ___ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > > > > ___ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Help about E1
Hello, First of all, E1 stands for 2Mbps transmission. If your transmited information is carried in a frame ( check ITU G.704 for details ) you can seperate 64Kbps "channels" out of this 2Mbps signal. For example in a TDM infrastructure, you can direct each of these 64K (or better to say n x 64K, 1<= n <= 31 ) channels to different TDM eggress points. This is called Channelized E1 (CE1). With this framing, There are 32 x 64K channels, and channel 0 is used for framing/synchronization Channel 16 may be used for signalling if needed, depending on the use of E1 circuit. (For instance, if PBXs are connected via E1, Channel 16 is used for signalling, however, if WAN devices are connected via channels, Channel 16 may be used for an additional data channel instead of signalling. For this reason, you may carry a maximum of 30 voice channels over an E1, but 31 x 64 K data channels may be carried) If infrastructure is not TDM, then you may not need to use 64K seperate channels. PDH/SDH infrastructure can be used in this case, and you can use pure 2 Mbps channel. There is no synch or signalling channel loss. (There is no channel.) ( You may check ITU G.703 ) If your hardware is capable of carrying n x 64 K but not capable of channelizing them and not using multiple sub-interfaces over the same interface, then this fraction of n x 64K out of E1 is called Fractional-E1 Considering 7200 series routers, Cisco PA-4E1G/120 port adapter is a full rate E1 card. If you configure the controller as follows: controller E1 3/7 channel-group 0 unframed then you can use Full rate 2Mbps. However if you configure : controller E1 3/7 channel-group 1 timeslots 1-5 then you have a Fractional E1 interface with a bandwidth of 320Kbps (5x64) (Unfortunately, this PA does not support multiple channel groups and it is not channelized. PA-MC-2E1/120, on the other hand, supports Channelized-E1 ( and also full-rate E1 with the above commands) controller E1 3/1 channel-group 1 timeslots 1-15 channel-group 17 timeslots 17 channel-group 18 timeslots 18 and we have 3 subinterfaces of 960Kbps, 64Kbps, 64Kbps respectively. Hope this helps and not long enough to make it more confusing :-) Regards, Ufuk. "vtam" <[EMAIL PROTECTED]> on 31.08.2000 09:35:34 Department: Please respond to "vtam" <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] cc:(bcc: UFUK YASIBEYLI/FINANSBANK) Subject: Help about E1 There are several E1 standard like Channelized E1, Fractional E1, Full rate E1. What is the different between them? And can i use channelized E1 card to connect Fractional E1, Full rate E1? Thanks. ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Help about E1
There are several E1 standard like Channelized E1, Fractional E1, Full rate E1. What is the different between them? And can i use channelized E1 card to connect Fractional E1, Full rate E1? Thanks. ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
