Westermo ODW-710-F1 - Manual (Page 10)

10 6651-2201
Functional description
Converter PROFIBUS DP – optical fibre
ODW-710-F1 is a fibre optic modem that converts between electrical PROFIBUS DP and
a fibre optical link.
Data rate up to 12 Mbit/s
ODW-710-F1 converts PROFIBUS DP data using data rates from 9 600 bit/s up to
12 Mbit/s. Retiming of the PROFIBUS DP data ensures that the correct signal form is
transmitted from the ODW-710-F1 converter.
Automatic data rate detection
The PROFIBUS data rate is set automatically as soon as the ODW-710-F1 receives a
correct data frame, whether data is received from PROFIBUS DP or the fibre optic link.
The detected data rate remains until a number of consecutive faulty received frames have
been detected or no further frames are detected within the timeout period. The timeout
period is set by switches, with the default setting of 31 faulty frames or 5 seconds with-
out any received frames.
Internal Electronics
COM
COM
+VA O
V
P +VB
C
NO
NC
STATUS
POWER
LED’s
O
V
P
O
C
P
RxD/TxD - P
RxD/TxD - N
SHIELD
PROFIBUS DP
CH 1
SFP
Fibre transceiver
TX
RX
Switches
OVP Over Voltage Protection
OCP Over Current Protection