![]() ![]() It looks like I have plan for a 15kHz cut-off frequency. RS232 Optical Isolator completes the conversion,from electronic signal to optical, fiom optical to electronic signal. What do you use? How does this value affect the pull up value that I use above? I assume more current through the LED means more current throught the resistor? Also, do you compensate for variations in the DCP010505BP-U supply voltage? This converter features two DB9 connectors with two optional terminal blocks. It can also convert RS485 to RS422 and vice versa as well as extend RS485 or RS422 up to 4000 ft (1.2km). How much current do I want to drive? It looks like it could range anywhere from 1ma to 20ma. The REP-485/422-9E is a high quality external powered industrial bi-directional 2.5KV RS-485/RS-422 isolator / Repeater with 15KV ESD and 600W surge protection. The PC824 has internal LEDs which need current limiting resistors. How do I calculate the size of the pull-up resistor? The PC824 will ground it's input through the opto-transistor when I energize the diode. I assume since you're driving an RS232 converter which is in turn pumping charge to a voltage that isn't specifically specified, then that's OK for you? ![]() A five volt input will typically vary by a volt, and may vary by a volt & a half? RS232 OPTICAL ISOLATOR SERIALIt looks like the voltage that comes out on the other side might not be exactly what went in. WuT 88001 RS232 serial isolator, 1 kVThe Isolator in the compact dongle housing provides galvanic isolation between two RS232 devices with an isolation. If you need to isolate all communication wires please see our 8-wire optical isolator.The DCP010505BP-U chip converts DC to AC so that it can transfer across a coil, then turns the AC back to DC, right? This Unit Has DB9 Ports For Opto Isolation And May Prevent A. Since it is port powered, no external power is needed. This is a 3-wire isolator which means that it protects the TX, RX and GND communication wires. RS232 Serial Port Optical Isolator May Help To Reduce Damage to Computer Or Your Machines. Buy GE Medical Systems Information Technology (GEMSIT) 2000248-013 RS232 WDB25FDB25M BBX OPTICAL ISOLATOR at PartsSource. The ISO-232-3P9 is a high quality industrial-grade high speed bi-directional 3 wire (TX, RX, GND) opto-isolated port powered RS232 5000V isolator with 15KV ESD and 600W surge protection in a 9 pin format. The port powered feature of this isolator means that you do not need to connect an external power supply to the unit, it gets its power from the RS232 port, it can do this effectively without interfering with the data communication. RS232 OPTICAL ISOLATOR SOFTWAREThe isolator does not require any flow control or software drivers. High Speed Opto-Isolator Protects a serial connection up to 305m long. The unit is powered from the RS232 data lines. One isolator at each end of your communication wire is recommended if the communication distance is longer than 100 feet, however the recommended distance depends on the amount of static electricity in the surrounding environment. The ISO-232-3P9 optically isolates the 3 lines: TX, RX, and GND which effectively protects your RS232 devices from transient voltage spikes, lightning strikes, ground loops, and noise problems. The isolator is easy to connect, simply connect it with the DB9 connectors between your communication wire and your device. What we have here is a high-speed industrial grade RS232 optical isolator which provides isolation for all 8 communication wires. This 3-wire RS232 opto-isolator features 5000V opto-isolation circuitry and optically isolates three (3) RS-232 lines (TX, RX and GND), which effectively protects your RS-232 devices from ground loops, noise problems, transient surges, remote lightning and spikes. Although the original specification was intended for modems, subsequent RS-232 transceivers support general-purpose serial interfaces at data rates up to 1 Mbps. It effectively protects your RS232 devices for up to with 1500V constant voltage, 600W surge protection and 15KV ESD static protection. Isolated RS-232 is a serial communication standard defined by TIA/EIA-232-F that conveys data over a simple unterminated, multiconductor cable. This compact DTECH RS232 Isolator Optic Electric adapter is designed to protect the RS232 serial port at both ends of the device, inhibit static and surge. If you need to effectively protect your RS232 ports and devices against high-voltage spikes, surges, ground-loops and other damaging voltages then this optical isolator is what you need. ![]()
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