iSC2 User
’s Manual
iS5 Communications Inc.
13
Fiber Repeater Mode
As was mentioned previously in the document the max distance between the two ISC2 devices is less
than 5 km (3.1 mi). When the requirement is to support distance that is more than 5 km (3.1 mi) the
iSC2 in the Fiber Repeater Mode allows extended distance between serial devices.
Position
State
Notes
1
OFF
RS232 to fiber
2
OFF
RS232-to-RS485/422 conversion
3
OFF
Full-duplex
4
OFF
No 120 Ohm termination
5
ON
Fiber repeater
6
OFF
1200 – 2400 baud
7
OFF
4800 – 9600 baud
8
OFF
14400 – 19200 baud
9
OFF
28800 – 38400 baud
10
OFF
57600 – 115200 baud
The repeat function will optically re-transmit any data received on the optical receiver, in addition to
any connected serial devices. As a result, any data transmitted from the master, will be re-transmitted
optically to the slave. In this case the distance between master and slave can be extended over the 5
km (3.1 mi).
This topology can be used for RS232, RS485 or RS422. In all cases, all repeater devices should have
the repeat function (DIP position 5) ON.
