User Manual DEV 1951
28 Copyright DEV Systemtechnik GmbH 2004-2017
A device reset can be performed in three different ways:
1. Reset via the switching mode push button at the device panel:
Press and hold the switching mode push button (labeled 6 in the figure of
chapter 3.1.1) for approximately ten seconds.
The reset command is accepted if the "Individual" LED and the "Simultaneous" LED
plus all channel LEDs are quickly alternately blinking (ten times).
2. Reset via the serial interface when terminating the configuration program
(chapter 4.4.2.2.1).
3. Reset via Web Interface (chapter 5.5.7.4.3).
Note:
It takes about 60 seconds after a device reset or after a power cycle that the
device is completely accessible again via the device panel, via the digital inter-
face, via the serial interface, via Web Interface, and via the different remote
protocols, e.g. via SNMP.
If the Web Interface does not react after a restart, then the ARP (Address Reso-
lution Protocol) cache of your computer may have to be cleared by opening a
command window and by typing: "arp –d<CR>" (<CR> stands for hitting the "Enter"
or "" key on the keyboard).
If –for any reason– neither a device reset nor a power cycle restores all func-
tionality, a reset to factory defaults is to be considered.
The restore of the device factory settings (chapter 4.3) can be performed via
Web Interface (chapter 5.5.7.4.1) or within Configuration Mode:
4.2.7 Configuration Mode
The Configuration Mode was applied to enable the change of a few settings locally
via the device panel. These settings are:
Special OIDs enabled/disabled
Within Configuration Mode some special OIDs can be configured to be acces-
sible via SNMP or not. Since this setting is customer-specific, it is not described
further in the context of this documentation.
It is recommended to leave this setting unchanged if not being aware of the
impact a change of this setting might have.
Power supply monitoring enabled/disabled
If not ordered otherwise the power supply monitoring of the device is enabled.
This setting can be changed by issuing the Sandar Prosan command PMP0 (please
refer to chapter 5.6.3.9), via modifying the .errorEnableMask (chapter
5.9.4.4.2), or within Configuration Mode.
Reset to factory defaults
The restore of the device factory settings (chapter 4.3) can be performed via
Web Interface (chapter 5.5.7.4.1) or within Configuration Mode.
To activate the Configuration Mode, press and hold the mode (or "Local") push but-
ton (chapter 3.1.1) either during power-up, or during the device reset process
(chapter 4.2.6).
At the end of the boot process (after approx. 60 seconds), the "Individual" LED and
the "Simultaneous" LED are continuously alternately blinking and the "Local" LED is on
for confirmation (for products with the preceding version of the device panel
providing only a single "Remote" LED, the "Remote" LED is off, respectively).
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