RPTR - RS-485 Repeater
Electronic Technician Assistant (ETA)

  RS-485 is the most common communications standard for DDC controllers; however, it is limited to 32 unit loads and 4,000 feet. Extending the network beyond 32 unit loads or 4,000 feet requires repeaters.
   BAPI’s RS-485 repeater (RPTR) connects two RS-485 segments together. Data from one segment repeats to the other segment and vice versa. Each RPTR module allows an additional 32 unit loads or 4,000 feet. The RPTR may be installed directly into the snaptrack to form a simple stand alone bus extender as described above.
   The RPTR module also plugs into the communications repeater backplane (RBP). Additional RPTR modules plugged into the backplane will form a star network, allowing multiple segments to connect to the same point. Each repeater card consumes one unit load for the primary RS-485 network and one unit load for the repeated network.
   A green power LED indicates that 12 VDC is present to the module. A red LED at each RS-485 network connector flashes when data is transmitted or received.

RS-485 Repeater Kit
The kit provides all the functions for one repeater and remote RS-485 network, plus it comes in a self-contained, easy-to-apply and cost effective assembly

Return to Entire ETA Product Line