Re: 2 Port Ethernet Switches?
On Mon, May 18, 2009 at 11:54 AM, Bob Fronk b...@btrfronk.com wrote: I am using these… [3Com NJ2000 wall-jack Ethernet switches] Can you (or anyone else) comment on the management features of this model? Specifically, what kind of diagnostics/information does the web interface give you? The so-called product documentation on the web site isn't much more than a brochure. I have a situation where one of these might come in handy, but it's going to be mounted way up in the trusses of a factory high-bay ceiling, so I'd like to be able to find out what's gone wrong without having to rent a scissor-lift just to look at the LEDs. :) -- Ben ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/ ~
2 Port Ethernet Switches?
Kinda like the ones built into VoIP phones. I am envisioning something that looks like a Y-Adaptor... Do these exist? Sam Cayze Information Technology Administrator ROLLOUTS ONSITE * ON DEMAND 952.279.6218...Direct Dial 612.386.3946...Mobile 877.471.6495...eFax www.Rollouts.com blocked::http://www.Rollouts.com www.e-Technicians.net http://www.e-technicians.net/ CONFIDENTIALITY NOTICE: This email and any attachment(s) are intended only for the designated recipient(s). Rollouts Incorporated prohibits use, distribution or transmittal by or to an unintended recipient without Rollouts' express written approval. If you are not the intended recipient, please delete this email and notify Rollouts. ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/ ~
RE: 2 Port Ethernet Switches?
Nice option.. http://www.serversupply.com/NETWORKING/SWITCH/4%20PORT/3COM/3CNJ90.htm John W. Cook Systems Administrator Partnership For Strong Families 315 SE 2nd Ave Gainesville, Fl 32601 Office (352) 393-2741 x320 Cell (352) 215-6944 Fax (352) 393-2746 MCSE, MCTS, MCP+I, A+, N+, VSP From: richardmccl...@aspca.org [mailto:richardmccl...@aspca.org] Sent: Monday, May 18, 2009 10:50 AM To: NT System Admin Issues Subject: Re: 2 Port Ethernet Switches? They might. However, given that the 4-6 port switches have been around $20 for some time, I can't see too many manufacturere putting capital into the tooling for a 2-port. I understand the need, though - good luck! -- Richard D. McClary Systems Administrator, Information Technology Group ASPCA(r) 1717 S. Philo Rd, Ste 36 Urbana, IL 61802 richardmccl...@aspca.org P: 217-337-9761 C: 217-417-1182 F: 217-337-9761 www.aspca.orghttp://www.aspca.org/ The information contained in this e-mail, and any attachments hereto, is from The American Society for the Prevention of Cruelty to Animals(r) (ASPCA(r)) and is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution, copying or use of the contents of this e-mail, and any attachments hereto, is strictly prohibited. If you have received this e-mail in error, please immediately notify me by reply email and permanently delete the original and any copy of this e-mail and any printout thereof. Sam Cayze sam.ca...@rollouts.com wrote on 05/18/2009 09:41:54 AM: Kinda like the ones built into VoIP phones. I am envisioning something that looks like a Y-Adaptor... Do these exist? Sam Cayze Information Technology Administrator ROLLOUTS ONSITE * ON DEMAND 952.279.6218...Direct Dial 612.386.3946...Mobile 877.471.6495...eFax www.Rollouts.com www.e-Technicians.net CONFIDENTIALITY NOTICE: This email and any attachment(s) are intended only for the designated recipient(s). Rollouts Incorporated prohibits use, distribution or transmittal by or to an unintended recipient without Rollouts' express written approval. If you are not the intended recipient, please delete this email and notify Rollouts. CONFIDENTIALITY STATEMENT: The information transmitted, or contained or attached to or with this Notice is intended only for the person or entity to which it is addressed and may contain Protected Health Information (PHI), confidential and/or privileged material. Any review, transmission, dissemination, or other use of, and taking any action in reliance upon this information by persons or entities other than the intended recipient without the express written consent of the sender are prohibited. This information may be protected by the Health Insurance Portability and Accountability Act of 1996 (HIPAA), and other Federal and Florida laws. Improper or unauthorized use or disclosure of this information could result in civil and/or criminal penalties. Consider the environment. Please don't print this e-mail unless you really need to. ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/ ~
RE: 2 Port Ethernet Switches?
Yep. Well, technically I guess it's a 3 port switch; which increased my Google results ;) Found one! http://www.cyberdata.net/products/networking/3portethernet.html 3 Ports, and USB powered. (Only 100Mbps though). From: richardmccl...@aspca.org [mailto:richardmccl...@aspca.org] Sent: Monday, May 18, 2009 9:50 AM To: NT System Admin Issues Subject: Re: 2 Port Ethernet Switches? They might. However, given that the 4-6 port switches have been around $20 for some time, I can't see too many manufacturere putting capital into the tooling for a 2-port. I understand the need, though - good luck! -- Richard D. McClary Systems Administrator, Information Technology Group ASPCA(r) 1717 S. Philo Rd, Ste 36 Urbana, IL 61802 richardmccl...@aspca.org P: 217-337-9761 C: 217-417-1182 F: 217-337-9761 www.aspca.org http://www.aspca.org/ The information contained in this e-mail, and any attachments hereto, is from The American Society for the Prevention of Cruelty to Animals(r) (ASPCA(r)) and is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution, copying or use of the contents of this e-mail, and any attachments hereto, is strictly prohibited. If you have received this e-mail in error, please immediately notify me by reply email and permanently delete the original and any copy of this e-mail and any printout thereof. Sam Cayze sam.ca...@rollouts.com wrote on 05/18/2009 09:41:54 AM: Kinda like the ones built into VoIP phones. I am envisioning something that looks like a Y-Adaptor... Do these exist? Sam Cayze Information Technology Administrator ROLLOUTS ONSITE * ON DEMAND 952.279.6218...Direct Dial 612.386.3946...Mobile 877.471.6495...eFax www.Rollouts.com www.e-Technicians.net CONFIDENTIALITY NOTICE: This email and any attachment(s) are intended only for the designated recipient(s). Rollouts Incorporated prohibits use, distribution or transmittal by or to an unintended recipient without Rollouts' express written approval. If you are not the intended recipient, please delete this email and notify Rollouts. ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/ ~
RE: 2 Port Ethernet Switches?
Perhaps something like this? http://compuvest.us/ProductDetails.aspx?ProductID=320960CategoryCode=NE T_SW www.sandman.com/pdf/Page59.pdf http://www.sandman.com/pdf/Page59.pdf Roger Wright Network Administrator Evatone, Inc. 727.572.7076 x388 _ From: Sam Cayze [mailto:sam.ca...@rollouts.com] Sent: Monday, May 18, 2009 10:42 AM To: NT System Admin Issues Subject: 2 Port Ethernet Switches? Kinda like the ones built into VoIP phones. I am envisioning something that looks like a Y-Adaptor... Do these exist? Sam Cayze Information Technology Administrator ROLLOUTS ONSITE * ON DEMAND 952.279.6218...Direct Dial 612.386.3946...Mobile 877.471.6495...eFax www.Rollouts.com blocked::http://www.Rollouts.com www.e-Technicians.net http://www.e-technicians.net/ CONFIDENTIALITY NOTICE: This email and any attachment(s) are intended only for the designated recipient(s). Rollouts Incorporated prohibits use, distribution or transmittal by or to an unintended recipient without Rollouts' express written approval. If you are not the intended recipient, please delete this email and notify Rollouts. ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/ ~
RE: 2 Port Ethernet Switches?
I've had one of those (similar model) for a few years now. (3Com sent us one gratis to see if we'd like more.) Ours is POE; the link says nothing about power... Until we bought switches that provided POE, we had to rely on an adapter (which 3Com threw in, also gratis) which provided POE to that back room switch port. John Cook john.c...@pfsf.org wrote on 05/18/2009 09:57:14 AM: Nice option.. http://www.serversupply.com/NETWORKING/SWITCH/4%20PORT/3COM/3CNJ90.htm John W. Cook Systems Administrator Partnership For Strong Families 315 SE 2nd Ave Gainesville, Fl 32601 Office (352) 393-2741 x320 Cell (352) 215-6944 Fax (352) 393-2746 MCSE, MCTS, MCP+I, A+, N+, VSP From: richardmccl...@aspca.org [mailto:richardmccl...@aspca.org] Sent: Monday, May 18, 2009 10:50 AM To: NT System Admin Issues Subject: Re: 2 Port Ethernet Switches? They might. However, given that the 4-6 port switches have been around $20 for some time, I can't see too many manufacturere putting capital into the tooling for a 2-port. I understand the need, though - good luck! -- Richard D. McClary Systems Administrator, Information Technology Group ASPCA® 1717 S. Philo Rd, Ste 36 Urbana, IL 61802 richardmccl...@aspca.org P: 217-337-9761 C: 217-417-1182 F: 217-337-9761 www.aspca.org The information contained in this e-mail, and any attachments hereto, is from The American Society for the Prevention of Cruelty to Animals® (ASPCA®) and is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution, copying or use of the contents of this e-mail, and any attachments hereto, is strictly prohibited. If you have received this e-mail in error, please immediately notify me by reply email and permanently delete the original and any copy of this e-mail and any printout thereof. Sam Cayze sam.ca...@rollouts.com wrote on 05/18/2009 09:41:54 AM: Kinda like the ones built into VoIP phones. I am envisioning something that looks like a Y-Adaptor... Do these exist? Sam Cayze Information Technology Administrator ROLLOUTS ONSITE ? ON DEMAND 952.279.6218...Direct Dial 612.386.3946...Mobile 877.471.6495...eFax www.Rollouts.com www.e-Technicians.net CONFIDENTIALITY NOTICE: This email and any attachment(s) are intended only for the designated recipient(s). Rollouts Incorporated prohibits use, distribution or transmittal by or to an unintended recipient without Rollouts' express written approval. If you are not the intended recipient, please delete this email and notify Rollouts. CONFIDENTIALITY STATEMENT: The information transmitted, or contained or attached to or with this Notice is intended only for the person or entity to which it is addressed and may contain Protected Health Information (PHI), confidential and/or privileged material. Any review, transmission, dissemination, or other use of, and taking any action in reliance upon this information by persons or entities other than the intended recipient without the express written consent of the sender are prohibited. This information may be protected by the Health Insurance Portability and Accountability Act of 1996 (HIPAA), and other Federal and Florida laws. Improper or unauthorized use or disclosure of this information could result in civil and/or criminal penalties. Consider the environment. Please don't print this e-mail unless you really need to. ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/ ~
RE: 2 Port Ethernet Switches?
It's available with an external plug in adaptor as well as PoE. John W. Cook Systems Administrator Partnership For Strong Families 315 SE 2nd Ave Gainesville, Fl 32601 Office (352) 393-2741 x320 Cell (352) 215-6944 Fax (352) 393-2746 MCSE, MCTS, MCP+I, A+, N+, VSP From: richardmccl...@aspca.org [mailto:richardmccl...@aspca.org] Sent: Monday, May 18, 2009 11:15 AM To: NT System Admin Issues Subject: RE: 2 Port Ethernet Switches? I've had one of those (similar model) for a few years now. (3Com sent us one gratis to see if we'd like more.) Ours is POE; the link says nothing about power... Until we bought switches that provided POE, we had to rely on an adapter (which 3Com threw in, also gratis) which provided POE to that back room switch port. John Cook john.c...@pfsf.org wrote on 05/18/2009 09:57:14 AM: Nice option.. http://www.serversupply.com/NETWORKING/SWITCH/4%20PORT/3COM/3CNJ90.htm John W. Cook Systems Administrator Partnership For Strong Families 315 SE 2nd Ave Gainesville, Fl 32601 Office (352) 393-2741 x320 Cell (352) 215-6944 Fax (352) 393-2746 MCSE, MCTS, MCP+I, A+, N+, VSP From: richardmccl...@aspca.org [mailto:richardmccl...@aspca.org] Sent: Monday, May 18, 2009 10:50 AM To: NT System Admin Issues Subject: Re: 2 Port Ethernet Switches? They might. However, given that the 4-6 port switches have been around $20 for some time, I can't see too many manufacturere putting capital into the tooling for a 2-port. I understand the need, though - good luck! -- Richard D. McClary Systems Administrator, Information Technology Group ASPCA(r) 1717 S. Philo Rd, Ste 36 Urbana, IL 61802 richardmccl...@aspca.org P: 217-337-9761 C: 217-417-1182 F: 217-337-9761 www.aspca.org The information contained in this e-mail, and any attachments hereto, is from The American Society for the Prevention of Cruelty to Animals(r) (ASPCA(r)) and is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution, copying or use of the contents of this e-mail, and any attachments hereto, is strictly prohibited. If you have received this e-mail in error, please immediately notify me by reply email and permanently delete the original and any copy of this e-mail and any printout thereof. Sam Cayze sam.ca...@rollouts.com wrote on 05/18/2009 09:41:54 AM: Kinda like the ones built into VoIP phones. I am envisioning something that looks like a Y-Adaptor... Do these exist? Sam Cayze Information Technology Administrator ROLLOUTS ONSITE * ON DEMAND 952.279.6218...Direct Dial 612.386.3946...Mobile 877.471.6495...eFax www.Rollouts.com www.e-Technicians.net CONFIDENTIALITY NOTICE: This email and any attachment(s) are intended only for the designated recipient(s). Rollouts Incorporated prohibits use, distribution or transmittal by or to an unintended recipient without Rollouts' express written approval. If you are not the intended recipient, please delete this email and notify Rollouts. CONFIDENTIALITY STATEMENT: The information transmitted, or contained or attached to or with this Notice is intended only for the person or entity to which it is addressed and may contain Protected Health Information (PHI), confidential and/or privileged material. Any review, transmission, dissemination, or other use of, and taking any action in reliance upon this information by persons or entities other than the intended recipient without the express written consent of the sender are prohibited. This information may be protected by the Health Insurance Portability and Accountability Act of 1996 (HIPAA), and other Federal and Florida laws. Improper or unauthorized use or disclosure of this information could result in civil and/or criminal penalties. Consider the environment. Please don't print this e-mail unless you really need to. CONFIDENTIALITY STATEMENT: The information transmitted, or contained or attached to or with this Notice is intended only for the person or entity to which it is addressed and may contain Protected Health Information (PHI), confidential and/or privileged material. Any review, transmission, dissemination, or other use of, and taking any action in reliance upon this information by persons or entities other than the intended recipient without the express written consent of the sender are prohibited. This information may be protected by the Health Insurance Portability and Accountability Act of 1996 (HIPAA), and other Federal and Florida laws. Improper or unauthorized use or disclosure of this information could result in civil and/or criminal penalties. Consider the environment. Please don't print this e-mail unless you really need to. ~ Finally, powerful endpoint
Re: 2 Port Ethernet Switches?
Somewhere I saw a single-gang wall plate that did that. It replaced a normal wall plate and was a 2 or 3 port hub. I think it was blackbox, good luck. Devin On Mon, May 18, 2009 at 9:50 AM, richardmccl...@aspca.org wrote: They might. However, given that the 4-6 port switches have been around $20 for some time, I can't see too many manufacturere putting capital into the tooling for a 2-port. I understand the need, though - good luck! -- Richard D. McClary Systems Administrator, Information Technology Group ASPCA® 1717 S. Philo Rd, Ste 36 Urbana, IL 61802 richardmccl...@aspca.org P: 217-337-9761 C: 217-417-1182 F: 217-337-9761 www.aspca.org The information contained in this e-mail, and any attachments hereto, is from The American Society for the Prevention of Cruelty to Animals® (ASPCA®) and is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution, copying or use of the contents of this e-mail, and any attachments hereto, is strictly prohibited. If you have received this e-mail in error, please immediately notify me by reply email and permanently delete the original and any copy of this e-mail and any printout thereof. Sam Cayze sam.ca...@rollouts.com wrote on 05/18/2009 09:41:54 AM: Kinda like the ones built into VoIP phones. I am envisioning something that looks like a Y-Adaptor... Do these exist? Sam Cayze Information Technology Administrator ROLLOUTS ONSITE • ON DEMAND 952.279.6218...Direct Dial 612.386.3946...Mobile 877.471.6495...eFax www.Rollouts.com www.e-Technicians.net CONFIDENTIALITY NOTICE: This email and any attachment(s) are intended only for the designated recipient(s). Rollouts Incorporated prohibits use, distribution or transmittal by or to an unintended recipient without Rollouts' express written approval. If you are not the intended recipient, please delete this email and notify Rollouts. -- Devin ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/ ~
RE: 2 Port Ethernet Switches?
http://www.google.com/search?hl=ensafe=offrlz=1G1GGLQ_ENUS282num=50n ewwindow=1q=wiring+2+ports+on+one+cat5+cable If you're just looking to pick up an extra port. You can just rewire one cable with 2 heads. I've done this before and it does work, however there is high probability that you'll never sync at gigabit and you will most likely get lots of cross talk on the cable causing some wonderful intermitten connection problems. Thanks, Jake Gardner TTC Network Administrator Ext. 246 From: Sam Cayze [mailto:sam.ca...@rollouts.com] Sent: Monday, May 18, 2009 10:42 AM To: NT System Admin Issues Subject: 2 Port Ethernet Switches? Kinda like the ones built into VoIP phones. I am envisioning something that looks like a Y-Adaptor... Do these exist? Sam Cayze Information Technology Administrator ROLLOUTS ONSITE * ON DEMAND 952.279.6218...Direct Dial 612.386.3946...Mobile 877.471.6495...eFax www.Rollouts.com blocked::http://www.Rollouts.com www.e-Technicians.net http://www.e-technicians.net/ CONFIDENTIALITY NOTICE: This email and any attachment(s) are intended only for the designated recipient(s). Rollouts Incorporated prohibits use, distribution or transmittal by or to an unintended recipient without Rollouts' express written approval. If you are not the intended recipient, please delete this email and notify Rollouts. ***Teletronics Technology Corporation*** This e-mail is confidential and may also be privileged. If you are not the addressee or authorized by the addressee to receive this e-mail, you may not disclose, copy, distribute, or use this e-mail. If you have received this e-mail in error, please notify the sender immediately by reply e-mail or by telephone at 267-352-2020 and destroy this message and any copies. Thank you. *** ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/ ~
RE: 2 Port Ethernet Switches?
I am using these...they are lifesavers when it comes to solving the one drop per room problem. You will need the external adapter for the top two POE ports to work unless your switch is 802.3at. http://www.3com.com/products/en_US/detail.jsp?pathtype=purchasetab=featuressku=3CNJ2000 - Bob Fronk P Please print only as needed. From: richardmccl...@aspca.org [mailto:richardmccl...@aspca.org] Sent: Monday, May 18, 2009 11:15 AM To: NT System Admin Issues Subject: RE: 2 Port Ethernet Switches? I've had one of those (similar model) for a few years now. (3Com sent us one gratis to see if we'd like more.) Ours is POE; the link says nothing about power... Until we bought switches that provided POE, we had to rely on an adapter (which 3Com threw in, also gratis) which provided POE to that back room switch port. John Cook john.c...@pfsf.org wrote on 05/18/2009 09:57:14 AM: Nice option.. http://www.serversupply.com/NETWORKING/SWITCH/4%20PORT/3COM/3CNJ90.htm John W. Cook Systems Administrator Partnership For Strong Families 315 SE 2nd Ave Gainesville, Fl 32601 Office (352) 393-2741 x320 Cell (352) 215-6944 Fax (352) 393-2746 MCSE, MCTS, MCP+I, A+, N+, VSP From: richardmccl...@aspca.org [mailto:richardmccl...@aspca.org] Sent: Monday, May 18, 2009 10:50 AM To: NT System Admin Issues Subject: Re: 2 Port Ethernet Switches? They might. However, given that the 4-6 port switches have been around $20 for some time, I can't see too many manufacturere putting capital into the tooling for a 2-port. I understand the need, though - good luck! -- Richard D. McClary Systems Administrator, Information Technology Group ASPCA(r) 1717 S. Philo Rd, Ste 36 Urbana, IL 61802 richardmccl...@aspca.org P: 217-337-9761 C: 217-417-1182 F: 217-337-9761 www.aspca.org The information contained in this e-mail, and any attachments hereto, is from The American Society for the Prevention of Cruelty to Animals(r) (ASPCA(r)) and is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution, copying or use of the contents of this e-mail, and any attachments hereto, is strictly prohibited. If you have received this e-mail in error, please immediately notify me by reply email and permanently delete the original and any copy of this e-mail and any printout thereof. Sam Cayze sam.ca...@rollouts.com wrote on 05/18/2009 09:41:54 AM: Kinda like the ones built into VoIP phones. I am envisioning something that looks like a Y-Adaptor... Do these exist? Sam Cayze Information Technology Administrator ROLLOUTS ONSITE * ON DEMAND 952.279.6218...Direct Dial 612.386.3946...Mobile 877.471.6495...eFax www.Rollouts.com www.e-Technicians.net CONFIDENTIALITY NOTICE: This email and any attachment(s) are intended only for the designated recipient(s). Rollouts Incorporated prohibits use, distribution or transmittal by or to an unintended recipient without Rollouts' express written approval. If you are not the intended recipient, please delete this email and notify Rollouts. CONFIDENTIALITY STATEMENT: The information transmitted, or contained or attached to or with this Notice is intended only for the person or entity to which it is addressed and may contain Protected Health Information (PHI), confidential and/or privileged material. Any review, transmission, dissemination, or other use of, and taking any action in reliance upon this information by persons or entities other than the intended recipient without the express written consent of the sender are prohibited. This information may be protected by the Health Insurance Portability and Accountability Act of 1996 (HIPAA), and other Federal and Florida laws. Improper or unauthorized use or disclosure of this information could result in civil and/or criminal penalties. Consider the environment. Please don't print this e-mail unless you really need to. ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/ ~
RE: 2 Port Ethernet Switches?
Maybe this would work. http://www.cyberguys.com/product-details/?productid=6405 From: Jake Gardner [mailto:jgard...@ttcdas.com] Sent: Monday, May 18, 2009 10:48 AM To: NT System Admin Issues Subject: RE: 2 Port Ethernet Switches? http://www.google.com/search?hl=ensafe=offrlz=1G1GGLQ_ENUS282num=50n ewwindow=1q=wiring+2+ports+on+one+cat5+cable If you're just looking to pick up an extra port. You can just rewire one cable with 2 heads. I've done this before and it does work, however there is high probability that you'll never sync at gigabit and you will most likely get lots of cross talk on the cable causing some wonderful intermitten connection problems. Thanks, Jake Gardner TTC Network Administrator Ext. 246 From: Sam Cayze [mailto:sam.ca...@rollouts.com] Sent: Monday, May 18, 2009 10:42 AM To: NT System Admin Issues Subject: 2 Port Ethernet Switches? Kinda like the ones built into VoIP phones. I am envisioning something that looks like a Y-Adaptor... Do these exist? Sam Cayze Information Technology Administrator ROLLOUTS ONSITE * ON DEMAND 952.279.6218...Direct Dial 612.386.3946...Mobile 877.471.6495...eFax www.Rollouts.com blocked::http://www.Rollouts.com www.e-Technicians.net http://www.e-technicians.net/ CONFIDENTIALITY NOTICE: This email and any attachment(s) are intended only for the designated recipient(s). Rollouts Incorporated prohibits use, distribution or transmittal by or to an unintended recipient without Rollouts' express written approval. If you are not the intended recipient, please delete this email and notify Rollouts. ***Teletronics Technology Corporation*** This e-mail is confidential and may also be privileged.? If you are not the addressee or authorized by the addressee to receive this e-mail, you may not disclose, copy, distribute, or use this e-mail. If you have received this e-mail in error, please notify the sender immediately by reply e-mail or by telephone at 267-352-2020 and destroy this message and any copies.? Thank you. *** ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/ ~
Re: 2 Port Ethernet Switches?
On Mon, May 18, 2009 at 11:48 AM, Jake Gardner jgard...@ttcdas.com wrote: If you're just looking to pick up an extra port. You can just rewire one cable with 2 heads. I've done this before and it does work, however there is high probability that you'll never sync at gigabit ... s/high probability/absolute certainty/ Gigabit uses all four pairs. Previous iterations of Ethernet-over-twisted-pair uses only two pairs, so it can work for 100 and 10 megabit. As you mention, interference between two Ethernet links in such close proximity can be an issue. How likely that will be depends on the length of the run. A short run can withstand more than a long run, because a long run has already eaten up more of the margin for error... I'm not sure if PoE requires all four pairs or not. I know some PoE designs for 10/100 used the other two pair for power, separate from the signal pairs. But PoE is also possible over gigabit, so it must be possible to supply power on signal pairs. Perhaps it is also possible to supply power on just two pairs. I dunno. -- Ben ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/ ~
Re: 2 Port Ethernet Switches?
It does and it does not, it depends on what the source of PoE is. Endspan injectors - typically a PoE switch - puts power on the data pairs. Midspan injectors - a device that sits between the device and the hub/switch - puts power on the unused pairs. With Gig-E endspan is your only option. Ben Scott wrote: I'm not sure if PoE requires all four pairs or not. -- Phil Brutsche p...@optimumdata.com ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/ ~
