| Chapter 14. USB Port | ||
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| Chapter 14. USB Port | ||
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Table of Contents
The FB2900 features a USB port that supports a wide variety of dongles providing backup data connection via a 3G mobile network.
USB hubs are supported, so that you can connect multiple USB devices to the FB2900. In the web user interface and CLI, specific USB devices are identified by a "Socket" value, which shows the hierarchy of USB hubs and physical socket used on each until you get to the device itself.
The Socket value is a sequence of one or more numbers separated by full stops. The numbers indicate
the number of each port along the chain from FB through any hubs to the final device. The USB port on the
FB2900 itself is always shown as port 1, so if the dongle is attached directly to the FB2900 the
Socket value will just be 1. Otherwise, if, for example, there was a hub connected to
the FB2900, and the dongle was connected to USB port 3 on that hub, then it would be 1.3.
A USB hub's ports are not necessarily numbered from left to right, and indeed, may not even be numbered in any sensible order. This is entirely down to the hardware design of the hub, and is nothing to do with the FB2900.
The USB subsystem of the FB2900 does not require any configuration itself as such, however you can enable logging which may be
useful for diagnostic purposes. The top-level usb object provides this 'configuration', but is also a container for
child objects that configure specific USB devices, such as a 3G dongle.
In the web user interface, the usb object is found in the "Interface" category, under the heading "USB and 3G/dongle settings".
You configure a 3G dongle by creating a dongle child object of the usb object.
In most cases, the configuration needed to get the dongle working is trivial, and doesn't actually need to specify any 'technical' parameters, and possibly no
parameters at all.
Assuming you have only one dongle connected, simply creating a dongle object will allow the dongle to start working automatically.
It will then 'dial' a connection (since the dongle emulates a modem), and once successful, the FB2900 will try to set up a PPP connection via the dongle.
When the PPP connection comes up, a new default route will be dynamically created.
If you have more than one dongle, then you will need to create a separate dongle object for each dongle, identifying the specific
dongle via the socket attribute, using the "socket" value syntax described above.
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| 13.4. Ether tunnelling |  | Chapter 15. System Services |