The SEM1000 isolator is designed to be series connected into a new or existing (4 to 20) mA current loop and provide an isolated (4 to 20) mA signal capable of driving into 300 Ω maximum load. The output is powered from the input loop.
This isolator requires no user adjustment during commissioning. Minor adjustments can be made to the calibration of the device by means of the two front panel accessible calibration potentiometers.
Incorrect connection in the loop will not damage the device as long as the specified maximum
currents/voltages are not exceeded.
The RTL8196C is an integrated System-on-a-Chip (SoC) Application Specific Integrated Circuit (ASIC) that implements a basic L2 5-port Ethernet switch and a high performance CPU.
The embedded RISC CPU is an RLX4181, and the clock rate can be up to 400MHz. To improve computational performance, a 16-Kbyte I-Cache, 8-Kbyte D-Cache, 16-K I-MEM, and 8-Kbyte D-MEM are provided. A standard 5-signal P1149.1 compliant EJTAG test interface is supported for CPU testing and software development.
1. CPU Interface (NIC)
(1) Supports BSD mbuf-like packet structure with adjustable cluster size (128-byte to
2Kbyte) to provide optimum memory utilization
(2) Provides the ‘To-CPU reason’ in the packet header to facilitate packet processing
(3) The NIC DMA supports multipledescriptor-ring architecture for QoS applications (supports 6 RX descriptor rings and 2 TX descriptor rings)
RTL8196C Datasheet PDF Download
Other data sheets are available within the file: RTL8196, RTL-8196C, RTL8196C-GR