Telecommunication network:
path 2
Transceiver 21-219
Transceiver 21-219
Telecommunication network:
path 1
Main1
IED with
distance reserve
Main1
IED with
distance reserve
Differential:
analogue + 8 binary
Distance:
192 binary
IEC07000241-1-en.vsdx
IEC07000241 V1 EN-US
Figure 77: Protection system with redundant communication channels
Configuration in normal use
No configuration is needed in normal use. When two transceivers are connected
back-to-back (E1 ports connected to each other), one of the transceiver should be
set to act as master.
Clock configuration switch
A rotary switch is included in the front panel to ease installation and testing (see
Figure
78)
Clock synchronization configuration
The rotary switch on the front panel has 16 positions (HEX switch). At position 0
the switch’s arrow, visible through the adjusting hole, points straight down.
Section 5 1MRK 505 382-UEN B
Communication set-up
90 Communication set-up 670/650 series 2.2
Application Guide
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