4.4.3 Eovdsl Performance - Siemens SIMATIC NET RUGGEDCOM RS930W Installation Manual

Communication Ports
4.4.3 EoVDSL Performance
For more information about configuring the RUGGEDCOM RS930W , refer to the
RUGGEDCOM RS930W User Guide for the .
4.4.3 EoVDSL Performance
The following describes the behavior and performance characteristics of EoVDSL.
EoVDSL Modes
The EoVDSL ports can be configured to operate in one of two modes:
•
•
If the line conditions degrade (reducing the SNR or Signal to Noise Ratio), but the de-
vice is able to maintain the link, an alarm will be triggered to notify the user of the
reduced SNR. By configuring the Rescan Mode parameter in RUGGEDCOM RS930W,
the user can control at which point the scan process will be restarted when the line
conditions degrade. If Link only is selected, the device will restart the scan process
if the line conditions degrade, such that the device is unable to maintain the current
link. If Link or SNR is selected, the device will restart the scan process if either the
SNR has dropped below a pre-defined acceptable level or when the device is unable
to maintain the current link, or whichever comes first.
Note
If the Mode parameter is set to Manual Mode, the restart of the scan process will on-
ly attempt to attain the set speed in manual mode.
For information about configuring EoVDSL, refer to the RUGGEDCOM RS930W User
Guide for the RUGGEDCOM RS930W .
Note
Assuming the distance can support the speed setting, the time to establish a link is
typically 15 to 30 seconds.
Universal EoVDSL Performance Characteristics
On No. 24 AWG Polyethylene Insulated Cable (PIC) twisted-pair wiring, the following
performance is typical with Universal EoVDSL:
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Auto Mode (default)
In Auto Mode, the device will step through the different speeds and automatical-
ly select the best bit-rate based on the current line conditions.
Manual Mode
In Manual Mode, the user can select one of the speed settings and the device will
only attempt to attain the set speed.
Distance
0.5 km (1640 ft)
0.6 km (1969 ft)
Downstream/Upstream (Mbps)
35
30
Installation Manual, 02/2020, C79000-G8976-1035-07
RUGGEDCOM RS930W