Honeywell EK280 Applications Manual page 155

EK280
7.5.3.1.2 Four-wire full duplex -– wiring
EK280
7.5.3.2 EK280 jumpers
X6: No jumper
or one jumper on the pins located
near the terminals
Application Manual
T-
T+
R-
R+
Ri
GND
Uext+
Uext-
X5: No jumpers
or two jumpers on the pins located
near the terminals
("Park position")
R-
R+
Bus Master
RS485
T-
T+
+
Power supply
RS-485 (5...8 V DC)
-
+
Power supply
- EK280 (8 V DC)
T-
T+
additional bus
R- subscribers
R+
153