7XV5662-0AA00
English
C53000-B1174-C134-7
35
Function
Figure 13 Hardware structure of the
communication converter
The task of the communication converter is to perform an adaptation of the available fibre
optic active interface in the protection device (DTE) to the physical specification of the
respective interface of the communication network (DCE). The adaptation occurs synchro-
nously and completely bit-transparent, i.e. direct forwarding of the information without adding
or filtering out information. Figure 13 shows the hardware structure.
The interface type (optionally X.21 or G.703.1) and the required transmission speed are set
manually via jumpers.
Another jumper serves to switch over to Test mode for putting into operation and for service
purposes.
Optical fibre,
transmit
Optical fibre,
receive
GND
Grounding screw
U
aux
DR
G.703, transmit
G.703, screen
G.703, receive
X.21, DSUB
Internal logic
1
2
3
+
_
Reset
Error
TxD
RxD
Power On
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