Solved

3com 4500 transceiver problem

Posted on 2011-02-22
4
817 Views
Last Modified: 2012-05-11
We recently purchased two 3CR17572-91 - Switch 4500 PWR 50-Port and some HP X120 1G SFP LC LX (Part# JD119B) transceivers to use with these. I can't get them to work. Even when they are connected back to back using just a Fibre patch cable nothing happens. I'm suspicious these transceivers are not compatible with the switch. Can anyone confirm my suspicions or suggest what i might be doing wrong.
0
Comment
Question by:Mark Ryan
  • 2
4 Comments
 
LVL 24

Expert Comment

by:rfc1180
ID: 34957372
> HP X120 1G SFP LC LX
more than likely not compatiable, most vendor SFP modules are not backward compatiable with other vendors, you should get 3Com SFP modules to guarantee they will work:

http://www.3com.com/products/en_US/detail.jsp?tab=reqoptprod&sku=3CR17572-91&pathtype=purchase

You should get: Product #: 3CSFP92 (1000BASE-LX SFP )

Billy
0
 
LVL 9

Expert Comment

by:jfrady
ID: 34960324
There is no microcode on those transceivers so they should work.  I have successfully used numerous brands on that switch.  

Try changing the polarity (send/receive) of your fiber jumpers.

You also may have to enable the ports that those modules are plugged into.  I seem to remember that on that switch a copper port and SFP port are the same port number.  In the configuration enable the SFP port.
0
 

Accepted Solution

by:
Mark Ryan earned 0 total points
ID: 34987006
Hi, Thanks for the comments. We got the transceivers to work. The switch had come with two 1000Base-T ransceivers which i installed into the first two SFP ports (49 and 50). When i had the fibre transceiver in the third SDP port (port 51) it would not work. We fixed the problem by installing it into port 49.
0
 

Author Closing Comment

by:Mark Ryan
ID: 35034677
This fixed my problem.
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
using BGP Attributes 2 83
Reseller Hosting 2 85
How to limit traffic to Netscaler 10.5 VIP 3 61
Help with a subnetting question 7 35
#Citrix #Citrix Netscaler #HTTP Compression #Load Balance
When it comes to security, there are always trade-offs between security and convenience/ease of administration. This article examines some of the main pros and cons of using key authentication vs password authentication for hosting an SFTP server.
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
This video gives you a great overview about bandwidth monitoring with SNMP and WMI with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're looking for how to monitor bandwidth using netflow or packet s…

813 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now