cgott42 Posted October 23, 2014 Posted October 23, 2014 I have an ActivBoard 300 Product code. Abv387s300 Serial#. C1005140692 attached to a laptop. I need to position the laptop about 30' from the board and am looking to buy a USB extension cable: http://www.amazon.com/Plugable-Meter-Active-Extension-Female/dp/B004AGX4YO/ref=sr_1_1?ie=UTF8&qid=1414090301&sr=8-1&keywords=usb+30ft Which says that some of the 400mA is used up by the repeater in the extension cable - so before purchasing - I wanted to know how much power the board needs? thx!
snagrat Posted October 23, 2014 Posted October 23, 2014 Promethean boards are not USB powered. They are powered by an external power adaptor.
cgott42 Posted October 23, 2014 Author Posted October 23, 2014 I don't see any spot on it for a power plug/adapter. Also - I plugged the laptop I via just the USB cable and it seemed to work fine.
newpersn Posted October 23, 2014 Posted October 23, 2014 I've used usb leads which have 2 plugs (at computer end) down to 1 socket on a run
Zourous Posted October 23, 2014 Posted October 23, 2014 I don't know for sure on your model, but the power to our's piggybacks through the serial cable even if you use the interaction through the USB. I had the same thought you had, that it should work just through a USB connection, but I'm afraid it won't. It's an odd setup, but that's the way it is.
cgott42 Posted October 23, 2014 Author Posted October 23, 2014 I've used usb leads which have 2 plugs (at computer end) down to 1 socket on a run how long have the cables been that you've used?
cgott42 Posted October 23, 2014 Author Posted October 23, 2014 I don't know for sure on your model, but the power to our's piggybacks through the serial cable even if you use the interaction through the USB. I had the same thought you had, that it should work just through a USB connection, but I'm afraid it won't. It's an odd setup, but that's the way it is. To clarify it works via the USB alone (I don't see any other cables anyway) -so it is being powered by USB alone- my Q is that I want to get a long USB extension cable - and need to know if a 30 foot cord will work (i.e. how much power does the board need). OR if someone an send a link to a 30ft cord that they use thx
newpersn Posted October 24, 2014 Posted October 24, 2014 how long have the cables been that you've used? normal runs are less than 5 meters (but i got a few where its longer than 5meters. (our longest is 10meters)
plexer Posted October 24, 2014 Posted October 24, 2014 (edited) Promethean boards are not USB powered. They are powered by an external power adaptor. Not all of them anymore. There were some "new" models around that only needed usb to power them including the inbuilt amplifier although looking at the current specs for 300 and 500 series boards they've gone for an 18v power supply. Ben Edited October 24, 2014 by plexer
plexer Posted October 24, 2014 Posted October 24, 2014 Aliexpress.com : Buy Unlocked Mobile MIFI 3G/4G Router EVDO + WCDMA + GSM WiFi Wireless router Modem Hotspot 150Mbps SIM Card Slot Free shipping from Reliable modem broadband suppliers on Shenzhen E-Life Technology Co., Ltd. Something like that could help with long cable lengths as it puts power back in at the remote end anyway. Ben
phillyrovers Posted October 24, 2014 Posted October 24, 2014 Hi All, To clear this up: The board that cgott42 has mentioned (AbV387S300) is an entry level 300 series board, this board does not contain an amplifier, speakers or PSU and interactivity is solely powered via USB. There is a PSU that can be purchased for this board (to allow wireless connectivity) which co-incidentally would be the best solution; as well as an amplifier and speaker upgrade. The 300PRO boards already include the Amplifier, speakers and a PSU - However these boards can be interactive without the need for the PSU, as interactivity is powered via USB, you will simply not get any audio if you do not have the power connected or the amplifier turned off. The 500PRO boards already include the Amplifier, speakers and a PSU - However these boards need to have BOTH USB and PSU connected and active in order to be interactive. If you are set on using a extended cabling setup Promethean's stance and advice for computers that are placed further away than the supplied cabling cabling is documented on our KB: PrometheanKB (articles 10414, and 10440). Thank you 1
cgott42 Posted October 24, 2014 Author Posted October 24, 2014 Hi All, To clear this up: The board that cgott42 has mentioned (AbV387S300) is an entry level 300 series board, this board does not contain an amplifier, speakers or PSU and interactivity is solely powered via USB. There is a PSU that can be purchased for this board (to allow wireless connectivity) which co-incidentally would be the best solution; as well as an amplifier and speaker upgrade. The 300PRO boards already include the Amplifier, speakers and a PSU - However these boards can be interactive without the need for the PSU, as interactivity is powered via USB, you will simply not get any audio if you do not have the power connected or the amplifier turned off. The 500PRO boards already include the Amplifier, speakers and a PSU - However these boards need to have BOTH USB and PSU connected and active in order to be interactive. If you are set on using a extended cabling setup Promethean's stance and advice for computers that are placed further away than the supplied cabling cabling is documented on our KB: PrometheanKB (articles 10414, and 10440). Thank you thanks - extremely helpful - can you post a link to the item that I need to buy ; just want to make sure I purchase just what I need (no more no less)
phillyrovers Posted October 27, 2014 Posted October 27, 2014 Hi cgott42, I'm not sure what to link to to be honest ) The Wireless connectivity upgrade can be purchased by contacting your reseller, or Promethean direct (in the US), you need to ask about the "Wireless upgrade for a 300 Standard board". The cable that Promethean have tested and knows works is the Cables2Go part number 29341 (www.cables2go.com) this was tested a number of years ago. However Cables2Go recommend part number: 29338, which Promethean have not tested. It is your choice ultimately which route and which cable to purcahse and use. The support for these third party cables lies with Cables2Go and not Promethean. Thank you
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