American Fibertek RR-94882SL - Manual (Page 8)

8
TYPICAL SYSTEM DATA CONNECTIONS
System data connections are based on industry standard EIA terminology for the transmission
of electronic data signals. Using this terminology, the driver of an electronic signal is labeled TX
or data out. Correspondingly, the receiver of an electronic signal is labeled RX or data in. The
plus terminal of the copper device is connected to the plus terminal of the fiber modem and the
minus is connected to the minus. Not all manufactures follow standard EIA terminology. Consult
the installation instructions for your copper device if you are unsure which two wires are the
drive (data out) wires and which two wires are the receive (data in) wires.
Please note that Data In on the RT-94882SL becomes Data Out on the RR-94882SL after going
across the fiber. The reverse flow follows the same orientation.
DATA CONFIGURATION SWITCHES
NOTE: This unit is shipped with Data Channel 1 and Data Channel 2 in the RS485 4-wire
configuration.
For other configurations of data channel 1 or data channel 2, please refer to the drawing below
for changes to the default switch settings. These configuration switches are located at the
bottom of the RT-482-1470/1490 and RR-82-1470/1490 units and can be modified without
opening the unit.