Skip to ContentSkip to Footer
Start of content
- Community Home
- >
- Networking
- >
- Legacy
- >
- Switches, Hubs, Modems
- >
- Gigabit-LX and Gigabit-SX
Switches, Hubs, and Modems
turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for
-
-
Categories
- Topics
- Hybrid IT with Cloud
- Mobile & IoT
- IT for Data & Analytics
- Transformation
- Strategy and Technology
- Products
- Cloud
- Integrated Systems
- Networking
- Servers and Operating Systems
- Services
- Storage
- Company
- Events
- Partner Solutions and Certifications
- Welcome
- Welcome
- Announcements
- Tips and Tricks
- Feedback
-
Blogs
- Alliances
- Around the Storage Block
- Behind the scenes @ Labs
- Converged Data Center Infrastructure
- Digital Transformation
- Grounded in the Cloud
- HPE Careers
- HPE Storage Tech Insiders
- Infrastructure Insights
- Inspiring Progress
- Internet of Things (IoT)
- My Learning Certification
- Networking
- OEM Solutions
- Servers: The Right Compute
- Telecom IQ
- Transforming IT
-
Quick Links
- Community
- Getting Started
- FAQ
- Ranking Overview
- Rules of Participation
- Contact
- Email us
- Tell us what you think
- Information Libraries
- Integrated Systems
- Networking
- Servers
- Storage
- Other HPE Sites
- Support Center
- Enterprise.nxt
- Marketplace
- Aruba Airheads Community
-
Categories
-
Forums
-
Blogs
-
InformationEnglish
Gigabit-LX and Gigabit-SX
SOLVED
Go to solution
Topic Options
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Permalink
- Email to a Friend
- Report Inappropriate Content
02-14-2003 05:03 AM
02-14-2003 05:03 AM
1. Can I make a Gigabit-LX transceiver (J4132A) talk to a Gigabit-SX (J4131B)?
2. Can I make a Gigabit-LX module (J4114A) talk to a Gigabit-SX (J4131B)?
3. Can I make a Gigabit-LX transceiver (J4132A) talk to a Gigabit-LX module (J4114A)?
I'm worried about the laser wavelenght of the 3 pieces of equipment, as well as the optical fibers and connectors supported.
2. Can I make a Gigabit-LX module (J4114A) talk to a Gigabit-SX (J4131B)?
3. Can I make a Gigabit-LX transceiver (J4132A) talk to a Gigabit-LX module (J4114A)?
I'm worried about the laser wavelenght of the 3 pieces of equipment, as well as the optical fibers and connectors supported.
Solved! Go to Solution.
2 REPLIES
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Permalink
- Email to a Friend
- Report Inappropriate Content
02-17-2003 10:39 AM
02-17-2003 10:39 AM
Solution
A Gigabit connection between a LX and a SX interface couldn't work : The wavelength used by each one are different (SX=850nm and LX=1300nm).
So your 1 & 2 are impossible.
If there is no particulary bug, two Gigabit LX transceivers can link together, just be carreful to the optic fiber :
- If Single mode fiber, the maximum IEEE standard distance is 5km.
Note that the HP J4132 can go up to 10km over single mode, but only if connected to a similar trancseiver.
The HP J4114 limit your link distance to 5km.
- If Multimode fiber (50&62.5), LX can go up to 550m.
Another important point :
Multimode fiber have often bad core characteristics so if your fiber is too long and/or have a bad quality, Crc & Alignmt errors could occur between two LX transceivers, even if the length is less than 550m.
To solve this problem, you must use a "Mode conditioning Patch Cord", which inject the light between the core and the cladding. See the diagram :
http://www.netoptics.com/mode-cond-illustration.gif
(This was a "very quick simple summary" for the mode conditioning theory - Sorry for optic fiber professionnals :-)
Note that this patchcord type is more expensive than ordinary patchcord, and one for both transceiver is required.
Tranceivers (J4132A and J4114A) have both SC connectors.
You can see manuals for them
For one:
ftp://ftp.hp.com/pub/networking/software/59692347.pdf
For the Other :
ftp://ftp.hp.com/pub/networking/software/59903012.pdf
Both have a section :
"Mode Conditioning Patch Cord for Gigabit-LX"
So your 1 & 2 are impossible.
If there is no particulary bug, two Gigabit LX transceivers can link together, just be carreful to the optic fiber :
- If Single mode fiber, the maximum IEEE standard distance is 5km.
Note that the HP J4132 can go up to 10km over single mode, but only if connected to a similar trancseiver.
The HP J4114 limit your link distance to 5km.
- If Multimode fiber (50&62.5), LX can go up to 550m.
Another important point :
Multimode fiber have often bad core characteristics so if your fiber is too long and/or have a bad quality, Crc & Alignmt errors could occur between two LX transceivers, even if the length is less than 550m.
To solve this problem, you must use a "Mode conditioning Patch Cord", which inject the light between the core and the cladding. See the diagram :
http://www.netoptics.com/mode-cond-illustration.gif
(This was a "very quick simple summary" for the mode conditioning theory - Sorry for optic fiber professionnals :-)
Note that this patchcord type is more expensive than ordinary patchcord, and one for both transceiver is required.
Tranceivers (J4132A and J4114A) have both SC connectors.
You can see manuals for them
For one:
ftp://ftp.hp.com/pub/networking/software/59692347.pdf
For the Other :
ftp://ftp.hp.com/pub/networking/software/59903012.pdf
Both have a section :
"Mode Conditioning Patch Cord for Gigabit-LX"
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Permalink
- Email to a Friend
- Report Inappropriate Content
02-18-2003 07:43 AM
02-18-2003 07:43 AM
Re: Gigabit-LX and Gigabit-SX
Re: Gigabit-LX and Gigabit-SX
Merci beaucoup, Arnaud!
The opinions expressed above are the personal opinions of the authors, not of Hewlett Packard Enterprise. By using this site, you accept the Terms of Use and Rules of Participation.
End of content
United States
Hewlett Packard Enterprise International
Communities
- Communities
- HPE Blogs and Forum
© Copyright 2018 Hewlett Packard Enterprise Development LP