02-24-2006 01:38 AM - edited 03-03-2019 11:51 AM
Hi all,
I've a customer doing a E1 connection from 2611XM to a Lucent/Alcatel device. I checked through Cisco web and notice there's a module (Cisco E1/T1 ISDN PRI) which is suitable. My customer (Lucent/Alcatel) end told me their connector is RJ45, and since the Cisco module also a RJ45 connector, can we use the plain UTP cable?
I gone through Cisco site and for this particular module, there's only 2 type of cables offering as follows:
CAB-E1-RJ45BNC - E1 Cable RJ-45 to Dual BNC (Unbalanced)
CAB-E1-RJ45TWIN - E1 Cable RJ-45 to Twinax (Balanced)
I can't find the right cable. And I've heard actually the cable is RJ-48. Could it be possible we crimp the cable our own?
02-24-2006 03:01 AM
Hi,
most of the E1 connections now (voice and dial-up gateways especially) possess the RJ-45 (RJ-48C indeed) connector. So - yes, you can use a regular UTP cable to interconnect your Alcatel PBX/PSTN switch (or whatever) with the Cisco gateway.
02-24-2006 03:02 AM
Hi,
The cable used for E1 lines with RJ4 termination is pretty much a standard. You should be able to crimp your own. The pins used for E1 circuits are:
1 - RX ring
2 - RX tip
4 - Tx ring
5 - Tx tip
Therefore, to make a cable to connect these up,use the following pin connections:
1 -- 4
2 -- 5
4 -- 1
5 -- 2
If the above does not work, it may mean that the pins are swapped on one of the sides. In this case, a straight-through cable should do the job.
Hope that helps - pls rate the post if it does.
Paresh
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: