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Unread 13-10-2015, 11:27
AlexanderTheOK AlexanderTheOK is offline
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Re: pic: 2015/2016 Robot Radio Comparison

Sorry to crash the party, but does anyone have a link to an ethernet switch that is actually reasonably smaller than the original D-Link? Not much of a... net gain (badum tish) in real estate if the new system takes up... you know... MORE space.
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Unread 13-10-2015, 11:52
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Re: pic: 2015/2016 Robot Radio Comparison

Quote:
Originally Posted by AlexanderTheOK View Post
Sorry to crash the party, but does anyone have a link to an ethernet switch that is actually reasonably smaller than the original D-Link? Not much of a... net gain (badum tish) in real estate if the new system takes up... you know... MORE space.
A typical 5-port switch is slightly smaller than the D-Link wireless router. It takes a little less space on the robot where the D-Link would have been. The new OM5P-AN is thus an extra component, but it can be placed for good radio reception rather than for network wiring convenience if you're using a separate switch.

This assumes that the 2016 rules permit a network switch between the radio and the roboRIO. I can imagine being required to have them connected directly with no intervening devices.
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Unread 13-10-2015, 12:26
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Re: pic: 2015/2016 Robot Radio Comparison

Here is another POE injector. It is small, but not a switch, so you gain very little. It is just an easy way to get power into the Ethernet.
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Unread 13-10-2015, 16:45
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Re: pic: 2015/2016 Robot Radio Comparison

Quote:
Originally Posted by Alan Anderson View Post
A typical 5-port switch is slightly smaller than the D-Link wireless router. It takes a little less space on the robot where the D-Link would have been. The new OM5P-AN is thus an extra component, but it can be placed for good radio reception rather than for network wiring convenience if you're using a separate switch.

This assumes that the 2016 rules permit a network switch between the radio and the roboRIO. I can imagine being required to have them connected directly with no intervening devices.
Selfishly I am hoping that there "is" a rule requiring plugging the roboRIO into the radio directly, on a designated port (near power, away from power). As an FTAA, I want to be able to say, "Your ethernet cable is not plugged in," and be able to point it out to the team member. Having to search for an unknown device to figure that out makes more difficult when trying to keep to the match schedule. This year I had to say that to teams more than prior years which I think probably had to do with no defense and less secure radios.
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Unread 13-10-2015, 13:12
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Re: pic: 2015/2016 Robot Radio Comparison

Quote:
Originally Posted by AlexanderTheOK View Post
Sorry to crash the party, but does anyone have a link to an ethernet switch that is actually reasonably smaller than the original D-Link? Not much of a... net gain (badum tish) in real estate if the new system takes up... you know... MORE space.
http://www.amazon.com/gp/product/B002HH0W5W

It also runs on 5v.
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Last edited by marshall : 13-10-2015 at 13:15.
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Unread 14-10-2015, 23:33
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Re: pic: 2015/2016 Robot Radio Comparison

Quote:
Originally Posted by AlexanderTheOK View Post
Sorry to crash the party, but does anyone have a link to an ethernet switch that is actually reasonably smaller than the original D-Link? Not much of a... net gain (badum tish) in real estate if the new system takes up... you know... MORE space.
My company and I are currently in the process of designing and prototyping such a switch. The goal is to have something with the smallest possible footprint/weight as possible, have 2-4 ports, and possibly also be a POE injector. As it progresses I'll post updates on here, although it won't be move to production until the rules are released and certain requirements/restrictions are laid out.
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Unread 14-10-2015, 23:49
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Re: pic: 2015/2016 Robot Radio Comparison

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Originally Posted by Richard.Varone View Post
... I'll post updates on here, although it won't be move to production until the rules are released and certain requirements/restrictions are laid out.
You realize rules will not be posted until kickoff? A direct conversation with First might be in order.
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Unread 15-10-2015, 06:57
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Re: pic: 2015/2016 Robot Radio Comparison

Why not buy a decent 5 port switch for $20 and call it a day? It's in a metal box, has lights, is well built inside (I've used these before) and has a very small footprint.
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Unread 15-10-2015, 07:40
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Re: pic: 2015/2016 Robot Radio Comparison

Quote:
Originally Posted by Foster View Post
Why not buy a decent 5 port switch for $20 and call it a day? It's in a metal box, has lights, is well built inside (I've used these before) and has a very small footprint.
That one weighs a half pound (I have one), so a lighter one would be desirable.
It also requires 7.5v, so some extra power work would be required to integrate it onto a robot.
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Last edited by Mark McLeod : 15-10-2015 at 08:51.
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Unread 15-10-2015, 08:08
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Re: pic: 2015/2016 Robot Radio Comparison

I have one also I looked at the wall wart power unit and mine says 5 volts on it.

Sorry about the weight, I like them because they are really built well. I had forgotten that teams struggle with weight limits.
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Unread 15-10-2015, 08:52
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Re: pic: 2015/2016 Robot Radio Comparison

The one you linked is a 7.5v model, so teams just need to be careful of that when spec'ing one out.
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Unread 15-10-2015, 09:21
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Re: pic: 2015/2016 Robot Radio Comparison

Quote:
Originally Posted by Mark McLeod View Post
The one you linked is a 7.5v model, so teams just need to be careful of that when spec'ing one out.
This is 5v:

http://www.amazon.com/gp/product/B002HH0W5W

And it doesn't weigh much.
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Unread 11-01-2016, 15:02
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Re: pic: 2015/2016 Robot Radio Comparison

In the game manual for 2016 Stronghold the use of Open Mesh OM5P-AN is required. However they continue to mention using the extra ports like the switch in the old D-Link DAP1522/DAP825 provided after that.

Does anyone know if adding an Ethernet switch to the robot is legal in 2016?

I am picking on this topic because it went directly into adding a switch into the robot at the end of 2015 before Kickoff.
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Unread 11-01-2016, 15:12
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Re: pic: 2015/2016 Robot Radio Comparison

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Originally Posted by techhelpbb View Post
In the game manual for 2016 Stronghold the use of Open Mesh OM5P-AN is required. However they continue to mention using the extra ports like the switch in the old D-Link DAP1522/DAP825 provided after that.

Does anyone know if adding an Ethernet switch to the robot is legal in 2016?

I am picking on this topic because it went directly into adding a switch into the robot at the end of 2015 before Kickoff.
Yes.

Quote:
Originally Posted by R59
Ethernet-connected COTS devices or CUSTOM CIRCUITS may connect to any remaining Ethernet port on the Wireless Bridge but must not transmit or receive UDP packets using ports 1100-1200 with the exception of ports 1130 and 1140.
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