From: Scott Morris (smorris@ipexpert.com)
Date: Tue Oct 16 2007 - 21:04:30 ART
They are both Registered Jacks which describe pinouts and cable types. The
technicalities fo RJ48 involve a different loop detection mechanism and use
of shielded cable in certain instances.
But yes, for the short spans that we're dealing with here, the ethernet
cables we all use work wonderfully! If you can get solid core instead of
stranded you'll be better off!
HTH,
Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713, JNCIE-M
#153, CISSP, et al.
CCSI/JNCI-M/JNCI-ER
VP - Technical Training - IPexpert, Inc.
IPexpert Sr. Technical Instructor
A Cisco Learning Partner - We Accept Learning Credits!
smorris@ipexpert.com
Telephone: +1.810.326.1444
Fax: +1.810.454.0130
http://www.ipexpert.com
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
WorkerBee
Sent: Tuesday, October 16, 2007 7:23 PM
To: Irfan Siddiqui
Cc: ccielab@groupstudy.com; Radioactive Frog
Subject: Re: PSTN Links not working on IPexpert Voice topology - Please Help
!!!
The pinout is as follows for T1/E1 crossover.
1 --- 4
2 --- 5
Although the cable is using normal Ethernet RJ-45, just wondering why it is
called RJ-48 for T1/E1 cable...
On 10/17/07, Radioactive Frog <pbhatkoti@gmail.com> wrote:
> Make sure you're using a CROSS-over (E1 and not ethernet one) between
> your PSTN router and BR1/2 routers.
>
>
> Frog
>
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This archive was generated by hypermail 2.1.4 : Fri Nov 16 2007 - 13:11:15 ART