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  • #62105
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    Yorkshire Pudding
    Participant

    Hi Stef,
    Crackling is usually due to latency in the packets on the audio connection, so this traffic isn’t getting priority over the data packets. You’ve probably not got the QOS settings correct, or have misconfigured the V-LAN. If you can post screenshots of every page on the config for the switches I’d be happy to have a look and see if I can spot the problem.

    Also, when the system is wired up, the connection LED by the port for the cable between the 2 switches should be green (gigabit), and all the rest of the connections should be orange (100mbps). If not then you’ve not setup the bandwidth limits correctly.

    And the least likely issue is good old dodgy cables – so don’t forget to check a simple D-Snake connection with each of the cables individually πŸ™‚

    Hope that helps!

    #48189
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    Yorkshire Pudding
    Participant

    and it’s mounted in an upside down case…

    #44356
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    Yorkshire Pudding
    Participant

    Andreas: glad I could help πŸ™‚
    Please let us know how you get on with the setup. Though for the sake of paranoia I’d make sure I rigged it so it was easy to patch directly from the desk to the AR2412 if things all started going wrong at soundcheck!

    #44355
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    Yorkshire Pudding
    Participant

    >> One of the switches could even be the WAP

    Unfortunately I don’t know of any managed layer 2 switches with built in WAP (Wi-Fi adapter) – all the wifi routers I’ve used work at a higher level…

    But if somebody does know of one then please let us know πŸ™‚

    #44249
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    Yorkshire Pudding
    Participant

    So – it’s really a case of knowing the options and picking the best one for a particular gig πŸ™‚

    #44248
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    Yorkshire Pudding
    Participant

    I agree that often just putting a router by the desk is the simplest & best option. But having the router at the front can sometimes be a better option, and in that case just running one cable is nice. Some examples:

    1) I recently did a corporate gig where the desk had to be in the projection room and I was using the iPAD to make changes in the room – In this case I wanted the router at the side of the stage on the top of the amps/radios/AR2412 rack.

    2) In a large room with a lot (or unknown amounts of) WiFi I’d rather have the router to the side of the stage than FOH for the same reason I put the radio receivers there – I want to be sure of a good signal on stage (where I need the iPad).

    3) If I have a rig where there are devices in the rack on stage that can be remote controlled over Ethernet. E.g. amps or radio receivers, I can wire those into the data network and connect a PC/mac at FOH to control them – while still only needing one cable between FOH and the stage.

    #44211
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    Yorkshire Pudding
    Participant

    Ok – it’s been a while but I’ve eventually got round to testing this – and indeed it is possible to run both a data network (for iPAD control etc) and D-Snake down a single CAT5e or CAT6 cable between the stage and FOH position.

    You need 2 managed layer 2 switches that support V-LANS. I used two TP-Link TL-SG108E switches, but the 5 port version TL-SG105E would be fine and a bit cheaper (both are very good value). You also need a Windows PC connected to the switches so you can run their configuration software.

    I setup port 8 on both routers as vLAN #8 and used it for D-Snake.
    I setup port 7 on both routers as vLAN #7 and used it for data.
    (You can use any port for each of the two networks, and you can add more ports to the data network if required)
    Next: Setup the routers to limit connections on ports 8 & 7 to 100MB full duplex. And set the port based QOS (Quality of service) to give ports 1 & 8 maximum priority, port 7 low priority.

    Port 1 of both routers were connected a CAT5e cable
    On the FOH router I connected port 7 to the data network connection on my QU16 and port 8 to the D-Snake connector.
    On the stage router I connected port 7 to a WiFi router (that the iPad connects to) and port 8 to the AR2412

    The result – a rock solid audio connection (tested for quite a while without any glitches) and a good iPAD connection to the desk.

    You could also add any managed amps or speaker controllers in the stage rack to the data network, and add a PC/MAC to the data network at FOH to control them.

    If anyone would like more details on how to set this up please shout & I’ll add screenshots etc. from the router setup.

    #41288
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    Yorkshire Pudding
    Participant

    Yup – the forum often feels like it’s running on an overloaded raspberry PI πŸ™‚

    #41249
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    Yorkshire Pudding
    Participant

    Have you set the router to not broadcast (hide) the SSID. I’ve found that my iPad doesn’t like connecting to networks with hidden SSID – even if you tell it all the details. It’s fine as long as the SSID is being broadcast…

    #40694
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    Yorkshire Pudding
    Participant

    According to the knowledgebase article DSnake uses Ethernet OSI layer 2, same as TCP/IP – it’s only at layer 3 the two diverge.
    (http://en.wikipedia.org/wiki/OSI_model for more on OSI layers).
    A tagged VLan is a way of running multiple virtual networks across the same physical cables/switches as if they were completely independent.
    So assuming a switch that supports tagged VLans on each end of the long Ethernet cable that runs from the front to back of the room ports 1 & 2 on each switch can be set to be completely independent networks – as if there were actually 2 wires running down the room.

    It’s essentially multiplexing a number of Ethernet connections…

    #40666
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    Yorkshire Pudding
    Participant

    I’d still like subgroups on the QU-16 so that I can do group processing (compression/FX)! but you’re right – this system just gets better and better πŸ™‚

    #40665
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    Yorkshire Pudding
    Participant

    According to:

    http://allen-heath.helpserve.com/Knowledgebase/Article/View/703/122/dsnake-can-i-run-dsnake-through-a-switch

    it looks like this is possible with switches that support tagged VLans (using a VLAN dedicated to DSnake & one for the network traffic)…

    Now to find some appropriate switches to test the theory….

    #40547
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    Yorkshire Pudding
    Participant

    they could add DCAs for the QU16 – as long as there is a way to assign them to the custom layer they don’t need a dedicated slot on one of the main layers.
    Alternatively they could allow any channel fader (or group fader) to be a DCA master…

    Hopefully we won’t need to speculate for much longer!

    #40255
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    Yorkshire Pudding
    Participant

    The web page for the AB168 says that there is an optional rack kit available πŸ™‚

    #39118
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    Yorkshire Pudding
    Participant

    I’ve ended up doing something similar – Taking the alt-outs and routing them (physically) into ST2. Then route ST2 only to AUX 9+10, and AUX 9+10 to the FOH. So I can treat the graphic/comp. The only problem with mirroring the mix using post fader sends is that each channel has a separate pan control for each stereo mix bus, so panning information would get lost (at least I think that’s how it works πŸ™‚

Viewing 15 posts - 1 through 15 (of 22 total)