System Concept; Device Family - ABB HITACHI EDS500 Series Manual

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 stan-
dard
Transmission speed
Transmission modes
Operation modes
No. of channels
Power supply
Comments
Table 4: Technical features: FSK modems
1KGT151042 V000 1
500FSD10
CCITT V.23
Up to 1,200 bps
Point-to-point communication
Multipoint star configuration
Full-duplex transmission
Half-duplex transmission
1
Can be used in combi-
nation with 23WT23
500FSD11
n/a
Up to 9,600 bps
2-wire transmission
4-wire 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)
24 @ 50 bps
Can be used in combi-
nation with 23WT25
11