Devices Menu; Troubleshooting The Lecnet - AKG AS8 Bedienungsanleitung

AS8/AS8TC

Devices Menu

There are two options available in the
Devices Menu:
Select Device
launches a control
panel for an active LecNet device.
Only one control panel may be
launched for a device at a particu­
lar address. For example, if two AS8s
are in a system, one at address 128
and one at address 129, control pan­
els can be launched for both. How­
ever, if an attempt is made to launch
another control panel for the AS8 at
address 128, this action will be prohib­
ited until the current active control
panel for that device is closed. When
a control panel is launched, it will start maximized. The only time that a control panel will commu­
nicate with a LecNet device is when it is maximized. If the panel is minimized or made normal size,
it will stop communicating with its LecNet device until it is again maximized.
Change Device Address
allows the LecNet address of an active device to be changed. This
would be necessary if more than one of a particular device type is present in the system. An
example of this might be two AS8s used together to get 16 input channels. The factory default
address for the AS8 is 128. One of the two AS8s would need to have its address changed to a
different address (like 129) to be recognized as unique from the other AS8. This is accomplished by
connecting only one AS8 to the PC using the supplied special serial cable . The CheckNet menu
option is run, and then the Change Device Address option is run to change the device address to
129. After all LecNet devices are assigned unique addresses in this way, all the LecNet devices
may be connected to the PC.

Troubleshooting the LecNet

While the LecNet is designed to be simple to connect and robust in operation, there will be times
when things don't operate as you expect. As a computer user, you've probably never had this
experience. In the unlikely event that you do, the following are some helpful hints to get your
LecNet system running again.
Com Ports - LecNet software is written to use either Com 1 or Com 2. The world of serial ports is dark
and mystical, and AKG has documented problems with some serial cards older than 3 or 4 years.
These serial cards typically come with older 386SX and 386DX systems, and may not communicate
with the LecNet software. The answer is to replace the old serial card with a new serial card.
Fortunately, serial cards are cheap, so this solution is not too painful.
Multiple LecNet Devices - When several LecNet devices are used together, some simple rules
apply:
1) All LecNet device Expansion ports must be correctly connected using the 8-pin mini-DIN cable
IC AS8. Since the RS-232 signals are carried through two of the Expansion port pins, proper connec­
tion is critical. See the particular manuals for the appropriate hardware connection.
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