The VRM-CU7-RS485-X is an isolated RS-485 Rear-I/O module, destined for CompactPCIŽ systems, to be used in combination with the serial interface cards VRM-CU1 and VRM-CU2. It is provided with an electrically isolated TIA-485 data transceiver for EMI sensitive applications. Designed for harsh environments, the VRM-CU7-RS485-X modules are high-reliability, rugged RS-485 interfaces, well suited for industrial and telecommunication purposes.
Features:
Rear I/O Module (60x31mm˛)
PHY Transceiver RS-485 (EIA/TIA-485-A)
Maxim MAX1480EA (VRM-CU7-RS485-1) or Maxim1490EA (VRM-CU7-RS485-2), electrically isolated
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 (VRM-CU7-RS485-1)
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 (VRM-CU7-RS485-2)
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