Maxim MAX1480EA (CU7-1-RS485) oder MAX1490EA (CU7-2-RS485),electrically isolated
RS-485 Interface CU7-1-RS485
2-Wire line TxD/RxD, driver and receiver connected, operation mode half-duplex, the transmitter (driver) is enabled by signal RTS, receiver has a fail-safe feature if the input is open circuit, external connector D-Sub 9-pos. male
RS-485 Interface CU7-2-RS485
4-Wire line TxD/RxD, driver and receiver not connected, operation mode full-duplex, the transmitter (driver) is permanently enabled, receiver has a fail-safe feature if the input is open circuit, external connector D-Sub 9-pos. male
Data Transfer Rate
2.5Mbps max. (CU7-1-RS485), 2 x 2.5Mbps max. (CU7-2-RS485)
Maxim MAX1480EA (CU7-1-RS485) oder MAX1490EA (CU7-2-RS485),electrically isolated
RS-485 Interface CU7-1-RS485
2-Wire line TxD/RxD, driver and receiver connected, operation mode half-duplex, the transmitter (driver) is enabled by signal RTS, receiver has a fail-safe feature if the input is open circuit, external connector D-Sub 9-pos. male
RS-485 Interface CU7-2-RS485
4-Wire line TxD/RxD, driver and receiver not connected, operation mode full-duplex, the transmitter (driver) is permanently enabled, receiver has a fail-safe feature if the input is open circuit, external connector D-Sub 9-pos. male
Data Transfer Rate
2.5Mbps max. (CU7-1-RS485), 2 x 2.5Mbps max. (CU7-2-RS485)
ESD Protection
±15kV (Human Body Model)
Isolation Voltage
±500V DC max.
Failure Protection
Short-circuit current limited, protected against excessive power by thermal shutdown
Power Requirements
+5V 0.3A max.
Temperature Humidity
Operating temperature 0-70°C (extended temperature range on request) Relative humidity 5-90% non-condensing
Specifications are subject to change without further notice
Ordering Information
Ordering Number
Short Description
CU7-1-RS485
RS-485/RS-422 Rear I/O PHY interface module, 1 port, 2.5Mbps two wire transmission line (party line), electrically isolated
Specifications are subject to change without further notice 
