Generex CS141 - Page 19

Version: 2020-09-04
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Copyright of the European Union is effective (Copyright EU) (c) 2019 GENEREX Systems GmbH, Hamburg, Germany, All rights reserved
TEL +49(40)22692910 - EMAIL generex@generex.de - WEB www.generex.de (This and all other product datasheets are available for download.)
Note:
In DHCP mode, IP addresses may change sporadically depending on the network configuration. Therefore, several Webmanager
monitored by a parent system such as UNMS II should receive a fixed IP address.
In any other case, technicians can easily detect and access installed devices by using Netfinder.
Configuring the CS141 device
Differences between configuration mode, rescue mode and operation mode
Each model of the CS141 family will be configured exclusively by an intuitive web interface. Independently to this common ground, the
web managers offer four valid operating states, which fundamentally differ from each other.
1. The configuration mode
The configuration mode is the default preset on delivery:
The slide switch is in center position and the dip switches of the CS141Mini are both set to OFF. The web manager can be reached via
hardware-coded preset IP address 10.10.10.10 and allows all system-relevant settings Since the CS141 generally uses the preset IP
address in configuration mode, this mode allows importing backup data and to be adjusted after restart without harming the network.
2. Operating mode
Depending on the setting, the sliding switch will be set to left or right position. In case of CS141Mini, Dip switch 1 or 2 is switched on
The CS141 can be run in two different operation modes:
In manual mode, enter the IP address information. Please note that incorrect settings may cause address conflicts on the network or the
settings made may not work. The data required for manual mode can be obtained from local system administrators.
Note:
In manual mode, the data is entered by technicians and thus permanently assigned. The CS141 will use this data to make itself known
in the network. assigning an address twice will cause a network conflict. In this case, switching back to configuration mode at any time is
possible to reach the Web Manager at the default IP address 10.10.10.10.
In DHCP mode, the CS141 automatically inherits settings assigned by a server and uses them for the IP address settings. The web
server takes over the administration of the IP address data. After the startup process, the web manager can be found using the tool
Netfinder.
Tipp:
As a rule, DHCP-assigned IP addresses via automatic mode are reserved for specific time.
DHCP clients therefore ask after 50% of this time window whether the IP address is still valid or will be assigned to another client. How
statically the DHCP server allocates IP addresses is a decision the system administrators make.
Due to this fact another IP address can be re-assigned after booting or a CS141 seems to be lost during regular operation.
When selecting the operating mode, the function of the CS141 within the network should be considered:
If the Web Manager runs as an active element within shutdown solutions or in conjunction with higher-level monitoring structures, a
manually assigned IP address makes sense, since an authenticated and fixed IP address must be configured.
As another advantage the CS141 starts faster with preconfigured IP addresses if the DHCP server is not available.
3. The rescue mode
In this mode, an additional jumper is set and the slide switch center position.
The Webmanager can access two ROMs for booting. Therefore, this failsafe design is able to contain the current firmware as well as the
last state before the firmware update including the configuration file.
When the web manager is set to rescue mode, the logic starts from the last known state and is initially fully operational again but
indicates in the general system information that the web manager is in rescue mode. The rescue mode represents a manually chosen
emergency operation state and is intended to repeat a faulty flash process.