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System concept
3
System concept
3.1
Device family
The 500FSD series out of the EDS500 product family is a product series of ruggedized FSK-
based analog modems. It is especially designed to support critical infrastructure companies by
enabling communication for traditional serial devices like RTUs or IEDs. The 500FSD product series
interoperates with any standard FSK-based technology but is also capable to achieve higher data
rates by enhanced technology. The devices are used in a variety of markets which require the need
for cost-efficient reliable communication.
The following table shows the technical features of the FSK modems.
Feature
Transmission standard CCITT V.23
Transmission speed
Transmission modes
Operation modes
No. of channels
Power supply
Comments
Table 5:
Technical features: FSK modems
For EDS500 analog modems portfolio details see EDS500 Brochure 500FSD Analog Modems
(1KGT151032).
1KGT151042 V001 1
500FSD10
Up to 1,200 bps
Point-to-point communication
Multipoint star configuration
1
Can be used in combi-
nation with 23WT23
500FSD11
n/a
Up to 9,600 bps
2-wire transmission
4-wire transmission
Full-duplex transmission
Half-duplex transmission
1
24...60 V DC
Can be used in combi-
nation with 23WT24
Device family
500FSD20
CCITT
Up to 2,400 bps (1
channel)
32 @ 50 bps
Can be used in combi-
nation with 23WT25
11
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