Two Port DVI Switch ?

I would like to hook up my 20' ACD with my Mini and my Compaq Desktop with a DVI graphics card.
Is their a DVI switch of some sort avaliable in the market ? I know about the regular KVM switches (VGA/PS2) but need some guidance in the DVI arena...
Thanks

A search of this forum for "DVI KVM" will yield a ton of information...
DD

Similar Messages

4-port dvi usb kvm switch

i'm having trouble finding one that...
1) reads all the mac extra keys - volume up/down, mute, cd eject
2) allows hotkey switching without needing a pc keyboard (scroll lock) to program, and
3) reads dvi from my g4's adc output with it's dvi adapter
the linkskey i bought is an utter disappointment and will be going back shortly.
any suggestions?
thanks.

The 4-port Avocent is made by Addlogix. Their 2 port KVM switches are fantastic. This is the one I've used from them and highly recommend it if you need a 2 port solution.
http://www.addlogix.com/kvms/embed.asp?stuff=sekvmdvubody.html

Have 23" Cinema Display, want 30" but don't know if my DVI switch will work

I have a 23" Cinema Display currently being shared by my 2 Macs (G5 and MacBook Pro) and 2 Windows PCs using a 4 port Single Link DVI KVM.
I want to upgrade to a 30" display, but I am getting some conflicting advise from Apple Store personnel, Apple Online Store, etc.
I want to put an adapter between my current single link DVI switch and a new 30" cinema display. I keep hearing to use the Mini DisplayPort to Dual-Link DVI Adapter, but looking at pictures of it, I don't see how that would work. I would need two DVI connections on the adapter (one in and one out), but I don't see that on there.
The gist is, I have 4 computers (which may or may not have dual link DVI) and I want to still use them to drive a 30" Cinema Display. Am I just hosed and have to wait, or buy a 30" monitor from another vendor?
I would be fine with the current 1920 by 1200 resolution on the 30" as I am purchasing this to help my tired eyes.
Thanks for any advise.

Malcolm Rayfield wrote:
I have read of other 30" monitors (Samsung) supporting lower resolutions using a single link DVI. Is it just the Cinema Display that doesn't support single link at any resolution.
The Apple 30" will work at 1,280 x 800 via single-link DVI.
What's the point though
Glor

Mini DVI switch

Hi,
I have two mini DVI adapters for my iMac. One to VGA to connect it to my second screen for working and one to Video to connect it to my TV as a media center.
Is there something like a mini DVI switch with that I can connect both adapter to switch between second screen and TV and don't have to unplug the adapters everytime?

I don't know of any such product. If the TV is also connected over VGA, you can probably connect a VGA switch to the end of one of one of those mini-DVI adapters and then connect your TV and second display to the switch. If the TV is an HDTV and connects with HDMI, or an older one that uses composite, then that would not work.
Alternately, you can dedicate the mini-DVI port to the TV connection. And get one of these adapters that lets you connect a display using USB
http://eshop.macsales.com/item/Other%20World%20Computing/VIDU2DVIA/
Just make sure you read the description (particularly the max resolution) to ensure it meets your needs.

DVI Switch questions

Hi,
I have two Mac Pro's and I want to share one of my displays with both.
Because my display has both VGA and DVI input I tried using the VGA input firsth, but it turned out that my Mac didn't support it's root resolution 1440x900 in this configuration.
So I decided to go for an DVI Switch, but I have a few questtions about it.
-I have read that you should never connect or disconnect an monitor when eigther the monitor or Mac is still running. (It could damage both!)
But how about "hot" switching? I'll be constantly switching between the two Mac's while they are both running.
-Could thid damage my Mac's???
-An other thing is that switching using a DVI switch seems to take a lot more time than using an VGA switch.
(The Mac's seem to know that an monitor is added or gone, and addapts to the new situation.)
Can I speed this up?
Greetings,
Michiel

I asume that my "König comuter 2 port DVI KVM Switch" wouldn't qualify for decent.
So if I want to be able to swich quickly between my two machines, I have to use VGA! (although quality will be bad because of the resolution)
Why doesn't OSX support 1440 x 900 on VGA?
Or is there a work-a-round?

Help with VLANs on SG200-18 and two SG200-08 switches

Hi everybody. My apologies but I'm only average at best with my CISCO skills. I have simple setup running a few network devices connected via 3 CISCO switches. It's small office and there are two rooms - one with servers and one with printer and pc's. Each room has 8-port SG200-08 switch.
Router/ firewall is Sonicwall TZ215 and it handles internal routing between VLAN's. Each SG200-08 was connected directly to TZ215 (no SG200-18 yet) and VLANs were working perfectly. Please see diagram below...
Problems started when I added in the middle larger SG200-18 to handle extra devices. Whatever I'm doing wrong but I can't make VLANs work anymore. Something I'm not setting up correctly in SG200-18.
Please help me to setup VLANS here - tagged, untagged, PVID, trunk........ I'm completely lost and already had to reset SG200-18 twice.
My working setup without 18 port switch was like this.
SG200-08 (1)
    g1 Trunk 1     1U,100T
    g2 Trunk 1     1U
    g3 Trunk 1     1U
    g4 Trunk 1     1U
    g5 Trunk 1     1U
    g6 Trunk 1     1U           SERVER3
    g7 Trunk 100   100U      SERVER1
    g8 Trunk 100   100U      SERVER2
SG200-08 (2)
    g1 Trunk 1     1U,50T,200T
    g2 Trunk 1     1U
    g3 Trunk 1     1U
    g4 Trunk 1     1U         PC1A
    g5 Trunk 1     1U         PC1B
    g6 Trunk 50    50U      PC2A
    g7 Trunk 50    50U      PC2B
    g8 Trunk 200   200U    NETWORK PRINTER
Thank you in advance.

Hello,
Small switches would remain untouched but 200-18 needs to have the following settings:
g15 Trunk 1     1U,100T
g16 Trunk 1     1U,50T,200T
g17 Trunk 1     1U,50T,200T
g18 Trunk 1 1U,50T,100T,200T
Sonicwall now would have only one port connected to SG200-18 with settinngs matching port g18 on big switch.
If you notice there is a change as now you would have only 1 port connecting your network to the Sonicwall, would advise you to use port 17 or 18 since they are uplink ports.
If you have tried to connect two ports to big switch STP would block one of the ports.
Let me know how it is going :-)
Aleksandra

DVI Switch

I'd like to use my Cinema display with my Macbook Pro as well as my Deskpro. Any suggestions on a good quality DVI switch. Not really interested in the KVM features.

THE PROBLEM
I had one CRT VGA monitor, one LCD VGA monitor and One 'Apple DVI to TV adaptor' but only two DVI-I outputs available on my Quad G5. I wanted to switch easily from my VGA LCD monitor to TV Adaptor using the second DVI-I output as the urge took me. The other DVI output was for my main monitor which I didn't want to mess with.
But there are no DVI-I switches that don't cost less then £50/€70/$96. Most switch just the digital part of the DVI-I output anyway. These are DVI-D switches. No good to me. It baffles me why there aren't any DVI-A monitor switches. The only difference from VGA monitor switches is that DVI-A sockets would be required.
I invested in a cheap 'Female DVI-I (the Apple TV Adaptor is DVI) to Male VGA adaptor' but there was something wrong with it as the Apple TV Adaptor refused to work.
After much searching on the internet I couldn't find out what the pins on the Apple TV Adaptor where. So like any good geek I found out for myself.
Here is what I found and ultimately how to make a 'VGA to Apple TV Adaptor'. I now use a cheap VGA monitor switch I got second hand to switch easily from VGA monitor to Apple TV Adaptor. Work and play are only a quick switch away. Total cost €9/$12/£6.
All the information you need is here:-
http://www.wiz.utvinternet.com/project/PINOUT-DVI-VGA-TV.html
I hope this helps a few people. I know I could've done with it.

Connecting two linksys gigabit switches

Hi,
I just bought a slm2024 (24 port managed Gigbabit switch) to replace an older 100Mbit switch. The old switch had PCs and other switches connected to it. The other switches are EG005W ver. 3. (linksys workgroup 5 port gigabit switches)
With the new slm2024 switch, the PCs have no problems connecting. The problem is the EG005W switches. The port on the slm2024 which connects both switches is dark (the LED is dark - no lights at all). Any thoughts on what is the problem? Do I need to configure something special on the slm2024?
I do have an older 100Mbit switch and if I connect it to the new slm2024 switch, the lights are on and traffic is flowing. It is just the EG005W that does not seem to like being plugged in the gigabit switch. It used to work when plugged in the older 100Mbit switch.
Oh and if I try to plug in two EG005W together, I get the same problem. PCs connected to the 2nd switch cannot communicate out either.
I understand that in the past cross-over cables where needed to connect switches but I thought that new switches no longer require this (even my old 100Mbit switch did not require this for the EG005W to work through it).
Any thoughts on how to fix or debug this?
Thanks for any suggestions.

there shouldn't be any configuration needed on the ports of the SLM2024 because they are already "smart ports"
this could be a possible problem between these 2 devices -- have heard of similar problem before bet. a switch and hub but i have forgotten their model numbers -- you would think that since they came from the same manufacturer you will have an easier set-up but sometimes that's just not the case

Absolute time between two sets of switches

Hi!
I am trying to write a VI that will find the time difference between two sets of switches. I have attached what I currently have which only gets the time for one set of switches.
What I am trying to include in my VI includes inputing data from two different ports and finding the resulting time difference. The two sets of switches go into different ports on the usb. The starting switches are in port 2 whereas the stoping switches are in port 1. Switch one from the first set should start the timer and switch one from the second set should stop the timer. And this logic continues for the remaining sets. Switch 2 from the first set starts the time and switch 2 from the second set stops the timer...All six switches are completely independant so they can stop in any order.
I was also wondering how to just have the absolute time from start to stop in hrs/min/sec? And then how to I write the resulting 6 times in hrs/min/sec to a spreadsheet?
Thanks so much for your help! I apologize for my simple questions! I am new to labview and computer programming in general.
Attachments:
patch_six.vi ‏25 KB

Please don't start a new thread with the same question. I already gave you an answer in the original thread.

I need a firewire with two ports hdmi and network does that exist?

I am looking to use my Mac AIr in presentations. I want to switch bewtween showing a presentation on Powerpoint and then show some equipment GUI's on my desktop. Is there a Firewire cable that has two ports or inputs? Is there another way to do this?

Welcome to Apple Discussions
Will you be using a video projector of some sort? If so it would connect via the Video Out port on the MBP (no FireWire involved at all) to the video in port on the projector - you may need an adaptor & video cable for that.
Once you exit or minimize the PPT your desktop would be displayed on the projector... no extra cables required at all.

How to configure two links between switches SG300

Hello!
I have two SG300 serie switches and two Gigabit connection between them. How do I configured these two links to work toghether like a one 2 Gigabit channel?
thanks a lot.

Hi Angel,
I think what you are trying to do is called a LAG on the SG300. This option is located under the "Port Management" tab and you can manage which ports you want to be in the LAG under "Link Aggregation" and there you will see "LAG Management" where you can edit your LAG 1 with the 2 ports that needs to act as one 2 Gigabit port.
I hope that was able to help you as that is what I have gathered from your question. Please reply back if you still need more assistance.
Thanks,
Brian Ng

Uplink ports and actual sfp port in switches ( please help )

Dear all,
I am reading around to see the differences between uplink ports and normal ethernet ports. It seems to be uplink port just reverse the rx,tx pins and remove the needs of using a crossover cable.
I have done a simple representation of using the below (normal ethernet ports)
PC
SWITCH
ROUTER
RX
straight
TX
straight
RX
RX
straight
TX
straight
RX
TX
straight
RX
straight
TX
TX
straight
RX
straight
TX
I assumed that the SWITCH ethernet port pins are naturally arranged as opposite from the PC so that a straight cable can be used and the same applies to a router port.
Q1) Hence from PC to Router ethernet port, I will need a cross cable, am I right ?
============================================================
Then I chance upon this website http://duxcw.com/faq/network/uplink.htm which states "A PC can be connected to an uplink port with a crossover cable"
As per my assumption above, a router has normal ethernet ports and uplink ports (for connecting to the wan/modem), since the normal ethernet ports of a router are in the order of (RX,RX,TX,TX) as shown above, I assumed the uplink port is (TX,TX,RX,RX).
PC
ROUTER normal ethernet port
PC
ROUTER uplink port
RX
cross
RX
RX
straight
TX
RX
cross
RX
RX
straight
TX
TX
cross
TX
TX
straight
RX
TX
cross
TX
TX
straight
RX
Q2) So how can the PC connect to the Router's Uplink port using a crossover cable ? Shouldn't it be using straight cable instead if it is trying to connect to a router's uplink port ?
============================================================
Q3) Where connecting switches (switch 1 to swtich2) using uplink port, can I say that a straight cable will be connected to switch 1 uplink port on 1 end, and a normal ethernet port in switch 2 on another end ?
SWITCH#1 ethernet port
SWITCH#1 Uplink port
SWITCH#2 ethernet port
TX
RX
straight
TX
TX
RX
straight
TX
RX
TX
straight
RX
RX
TX
straight
RX
============================================================
Q4) What is the purpose of an SFP port in a switch ? is it use as an uplink port ? Where does it actually uplink/connect to ?
Q5) If i connect a switch Uplink port to another switch Uplink port, does it means that I have to use a crossover cable ? does SFP fiber come with "crossover" type too ?
============================================================
Q6) If an uplink port in a switch is use to connect to a router (can we?), do i need to use a crossover cable then ? since a normal switch ethernet port will use a straight cable to connect to a router port ? as shown below
SWITCH
ROUTER
SWITCH UPLINK
ROUTER
TX
straight
RX
RX
cross
RX
TX
straight
RX
RX
cross
RX
RX
straight
TX
TX
cross
TX
RX
straight
TX
TX
cross
TX
============================================================
Q7) Last but not least, if a design connect two switches using SFP uplink ports on both side, what would be the main purpose ? to increase the amount of ports ? Why not stack them then ?
Sorry for the lengthy post, will really appreciate if some gurus can shed some light on the above.
Thanks a million.
Regards,
Noob

Hi Noob,
On some kit like netgear hubs etc, you may find a little button or
slider switch which may be labelled MDI or MDI(X) this allows a
straight cable to be used between 2 Hubs or switches (Both DCEs).
Some Cisco switches/routers will allow you to do the same but in software
interface fastethernet 1/0/1
mdix auto
====================================
DTE devices like say your laptop PC NIC card has an MDI (Medium Dependant Interface).
Physically this wires out as ( For 10/100M):-
RJ45 PIN
1 -- TRANSMIT +ve
2 -- TRANSMIT -ve
3 -- RECEIVE +ve
6 -- RECEIVE -ve
DCE devices like hubs & swiches have MDI-X (Medium Dependant Interface - Crossedover).
Physically this wires out as ( For 10/100M):-
RJ45 PIN
1 -- RECEIVE +ve
2 -- RECEIVE -ve
3 -- TRANSMIT +ve
6 -- TRANSMIT -ve
So lets connect the device together with a STRAIGHT cable ( Function DTE to DCE)
PC/NIC = DTE = MDI                                SWITCH = DCE = MDI(X)
RJ45 PIN                                           RJ45 PIN
1 -- TRANSMIT +ve -------------------------------- 1 -- RECEIVE +ve
2 -- TRANSMIT -ve -------------------------------- 2 -- RECEIVE -ve
3 -- RECEIVE +ve --------------------------------- 3 -- TRANSMIT +ve
6 -- RECEIVE -ve --------------------------------- 6 -- TRANSMIT -ve
So we transmit from the DTE and receive on the DCE and vice versa (BINGO).
Remember Routers are regarded as DTEs
=================================
So lets connect 2 switches together with a CROSSOVER cable ( Function DCE to DCE)
UPLINK to UPLINK
SWITCH = DCE = MDI(X)                           SWITCH = DCE = MDI(X)
RJ45 PIN                                           RJ45 PIN
1 -- RECEIVE +ve -------------------------------- 3 -- TRANSMIT +ve
2 -- RECEIVE -ve --------------------------------- 6 -- TRANSMIT -ve
3 -- TRANSMIT +ve ------------------------------ 1 -- RECEIVE +ve
6 -- TRANSMIT -ve ------------------------------- 2 -- RECEIVE -ve
So we transmit from the DCE and receive on the DCE and vice versa (BINGO).
Regards
Alex

Etherchannel or Aggregated ports between switch and AIX server

I have a problem with the configuration of an etherchannel or port aggregation between an 4507 Catalyst switch and a server running AIX 5.2 maintenance level 4. The two ports on the switch are on the same blade.
I tried configuring etherchannel with the command
config-if# channel-group XX mode on
and I tried configuring 802.3ad with the command
config-if# channel-group XX mode activ
but in both cases, as soon as I configured the second port, connection went down (I monitored with pings).
On the AIX, I tried configuring modes "round-robin" and "802.3ad" with both switch configurations, but the result was the same.
Does anyone has experience with this kind of configuration?
thanks,
Antoine

Hi amaitre
Could you setting the etherchannel with the AIX Server?
I configured in my switch 4510 with a AIX, but the 2 ports with channel-group keep in suspend. This is the configuration
interface Port-channel2
description ## LACP AIX ##
switchport
switchport access vlan 100
load-interval 30
interface GigabitEthernet4/20
description ## LACP AIX ##
switchport access vlan 100
channel-protocol lacp
channel-group 2 mode active
spanning-tree portfast
interface GigabitEthernet4/21
description ## LACP AIX ##
switchport access vlan 100
channel-protocol lacp
channel-group 2 mode active
spanning-tree portfast
This configuration works with a server Dell with windows 2008.
The schema is 1 switch 4510 with etherchannel to AIX.
Thanks!

Trunk between two SF220-48 switches

Hello!
I have two SF220-48 switches with default VLAN1 and additionally created VLAN2 & VLAN3.
Switches placed in two rooms and are connected to each other via one Ethernet cable which is connected in 48 port on every switch.
How must I configure 48 port to make it trunk for VLAN1 and VLAN2 & VLAN3?
Thank's!

I'm using web interface and make this setting:
When PСs connected to VLAN2 ports on same switch they can ping each other, but when PСs connected to VLAN2 ports on different switches, they can't ping or make any outer connections.

Myself is Anish and am facing some issues in configuring sg30052 port gi switch

Hai help me on this..
User requirements
1) Switch is configured with a management ip 172.16.7.x
2) Two VLAN's has tobe created 114 & 115
3) Configure the switch-ports as access ports and has to be assigned with one of the two vlans as user requirement.
4) Two ports of the switch has to be configured as trunk port.
5) Port security has to be enabled in all access ports.

Hi Anish-
1 - Log in to the console of the switch
config t
interface vlan 1
ip address 172.16.7.x
2-
config t
vlan database
vlan 114, 115
3-
config t
int gi01
switchport mode access
switchport access vlan 114
int gi02
switchport mode access
switchport access vlan 115
4-
config t
int gi48
switchport mode trunk
switchport trunk allowed vlan add 114, 115
5-
https://supportforums.cisco.com/docs/DOC-27753
https://supportforums.cisco.com/docs/DOC-27720
-Tom
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Two Port DVI Switch ?

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