... modem 2.with standard TCP/IP protocol stack, i/o 3.Support transparent data transfer 4. Support ... RS422) port that can conveniently and transparently connect one device to a cellular network, allowing you ... 1ower than 1mA@12VDC. It has compatible digital I/O channel, ADC, input pulse counter and pulse ... data centers, one main and another backupSupply 5 I/O channels, compatible 2 pulse wave output channels, ...