GÜDE Expert Power Control 8291, Manual

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Expert Power Control 8291 © 2020 GUDE Systems GmbH
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5.3 Declaration of Conformity
This product from the Expert Power Control 8291 series is in conformity with the
European directives for CE marking applicable to this product. The complete CE declara-
tion of conformity for this product can be found on the website www.gude.info in the
download section of the product.
5.4 FAQ
1. What can I do if the device is no longer accessible?
·
If the Status LED is red, the device has no connection to the switch. Unplug and plug
the Ethernet cable. If the Status LED is still red, try other switches. If one uses no
switch, but connects e.g. a laptop directly to the device, make sure you are using a
crossover Ethernet cable.
·
If the status LED is orange for a longer time after unplugging and plugging the Ethernet
cable, then DHCP is configured, but no DHCP server was found in the network. After a
timeout, the last IP address is configured manually.
·
If there is a physical link (status LED is green) to the device, but you can not access
the web server, bring the device into bootloader mode and search for it with
GBL_Conf.exe
. Then check the TCP-IP parameters and change them if necessary.
·
If the device is not found by GBL_Conf.exe in bootloader mode, you can reset the set-
tings to factory defaults
as the last option.
2. Why does it sometimes take so long to configure new SNMPv3 passwords on
the website?
The authentication methods "SHA-384" and "SHA-512" are calculated purely in software,
and can not use the crypto hardware. On the configuration page, e.g. "SHA-512", needs
up to 45 seconds to calculate the key.
3. Can you enter multiple e-mail recipients?
·
Yes. In the E-Mail configuration in the Recipient Address field, it is possible to enter
multiple e-mail addresses separated by commas. The input limit is 100 characters.
4. Why did the MIB tables change after the firmware update?
·
Since the number of possible event types was increased, the previous trap design res-
ulted in an excess of trap definitions: See Change in Trap Design
.
5. Importing an older firmware
·
During a firmware update, old data formats are sometimes converted to new struc-
tures. If an older firmware is newly installed, the configuration data and the energy
meters may be lost! If the device then does not run correctly, please restore the fact-
ory settings (e.g. from the Maintenance Page
).
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