User Manual DEV 2194
Copyright DEV Systemtechnik GmbH 2013-2017 9
"RF" level status LED (9 & 17)
With the integrated RF level monitoring functionality, the aggregated power
level of the RF signal is measured and compared with a threshold level. The
status of RF level monitoring is indicated via the "RF" LED: green means ok, red
indicates the signal level to be below the RF threshold level.
"Bias" status LED (10 & 18)
The amplifiers provide LNB power with current monitoring, i.e. the amplifiers
are prepared to feed DC current through the (corresponding) RF input port in
order to supply LNBs or inline amplifiers with power. The current monitoring
functionality is applied for the surveillance of the current fed by the LNB power
supply. The "Bias" LED being off indicates that the LNB power supply is turned
off for this amplifier. If the LED is green, LNB power is fed to the RF input port
of the amplifier and the current is within the limits of the defined current
monitoring interval. If the lower limit (no or not enough current) or the upper
limit (too much current is drawn) is exceeded, the LED is red.
"Bias" push button (13 & 21)
In Local Mode the enabled "Bias" push button can be used to turn on or off the
LNB power supply in VL mode (13 V, 0 Hz).
Note:
A "Bias" push button is functional only if the button is enabled and if the
operation mode of the device is Local Mode. The operation mode can be
changed via Web Interface (please refer to chapter 5.4.2) or via SNMP (chapter
5.5.4.3.1). The "Bias" push button can be enabled or disabled via Web Interface
(chapter 5.4.4.1).
With the "Bias" push button the LNB power supply can be turned on in VL mode
(13 V, 0 Hz), only.
The other LNB power supply modes (VH: 13 V, 22 kHz; HL: 18 V, 0 Hz; and
HH: 18 V, 22 kHz) are available via Web Interface (chapter 5.4.4.1) and via
SNMP (chapter 5.5.4.3.9.8).
After the boot phase of the device and after an operation mode change, all
LEDs of each amplifier are blinking shortly as a receipt.
3.1.2 Communication Features
Additionally to the device panel, a Web Interface (please refer to chapter 5.4) is
available for operating the DEV 2194 in Local Mode. The Web Interface provides
features for checking the health status and for changing the setup of the device; it
provides full control in terms of setting up specific parameters, and it provides
access to the recording functionality.
The implementation of SNMP (Simple Network Management Protocol) via the
Ethernet interface permits remote monitoring and control of the device
(chapter 5.5).
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