10
6651-2231
STATUS
C
NO
NC
LED’s
Switches
CH 2
SFP
Fibre transceiver
TX
RX
CH 1
SFP
Fibre transceiver
TX
RX
Internal
Electronics
COM
COM
+VA
O
V
P
+VB
POWER
RS -232
SHIELD
DCD
RD
TD
SG
DSR
RTS
CTS
ODW-720
O
V
P
Functional description
OVP Over Voltage Protection
OCP Over Current Protection
Converter serial interface – optical fibre
ODW-720 is a fibre optic modem that converts between electrical RS-232 and a fibre
optical link.
ODW-720 can also be used to convert from RS-232 to RS-485 by using a
ODW-720 in the same link as ODW-730.
Repeater – optical fibre links
ODW-720 is a fibre optic repeater that repeats received data from one fibre link out to
the other link. This is useful e.g. for long distance communication, where electromagnetic
interference may occur or when isolation of the electrical network is needed. The maxi-
mum optical fibre distance depends on selected fibre transceiver and fibre type. Distances
up to 80 km (50 miles) are available.
