DESCRIPTION
Demonstration circuit 1786A showcases the LTC2871
RS232/RS485 multiprotocol transceiver with integrated
termination. Separate supply inputs power the interface
and logic sections, permitting operation of the logic control
and I/O down to 1.7V. LEDs indicate when supplies
are present. All control pins are accessible via a turret
for external connections, or they may be set by jumpers.
All logic I/O and interface I/O lines are routed to turrets.
The RS485 interface lines are also available at a terminal
block for convenient connection of a transmission line.
Because the LTC2871 contains half-/full-duplex switching
control it is unnecessary to jumper A and B to Y and Z for
half-duplex operation.