Does it work with 2 wire RS485, or is the review incorrect.
776907
I have definitely used this device in both full-duplex (i.e. 4-wire) RS-422 mode and in half-duplex (i.e. 2-wire) RS-485 mode.
776908
Yes. Be aware that RS-485 to USB produces latencies. If your are using Modbus protocol, there are gateways that are protocol aware, that convert from Modbus TCP (Ethernet) to Modbus RTU (RS-485). That option is more robust.
776909
Yes, it does work with both 4-Wire and 2-Wire. It is build around this chip http://www.exar.com/common/content/document.ashx?id=643.
1514911
I do not have them on the same circuit. For me, it works but the transfer rate is slower than when they are on the same circuit. I cannot tell you whether that is normal behavior, or just a function of the wiring in my house (some of which is 50+ years old).
110642
NO. That is exactly why I bought it, because it only requires 2 wires in the box.
1264514
It will work for a two wire. It can also be programmed and can handle a ac/heat pump configuration. Complete instructions in the package.
750796
It would depend upon what transceiver it uses... you might try contacting the manufacturer. The spec is 10Mbps @ 40ft to 100Kbps @ 4000ft. The distributor's spec page indicates 300bps to 921600bps up to 1.2Km: http://www.serialstuff.com/usb-to-rs485-422-terminal-block/ I have used this successfully under Windows 8 64-bit.
653645
I have not set mine up yet , but I did test the system out to make sure all was functioning properly... I have the 27X Optical Zoom Dome PTZ IP Camera Outdoor High Speed Sold by bravolink , which also uses the RS485 that is only a TWO WIRE communications... I can say ( IT WORKS GREAT ) ... No dissapointments here... Just make sure you have the Polarity right...
706368
Don't use #56575. You shouldn't chain two protected outlets together. This product should work, but you are probably better off buying a splitter that doesn't cover the reset button. Maybe two 3 way adapters?
457191
Zee question is whether your DMX is on RS-485. DMX is a protocol that can sit on top of all manner of cabling. If it's DMX E1.11, it might work. I've been using it for Modbus/RTU devices and it works well.
1685036
The modules in the box are dual mode, but I never had the need to see if RF worked from the hub itself. I have active phase bridges and RF is all over the place -- it's hard to isolate one mode from another when the system is working.
396305
I'm not sure which wire but I do know that the system is junk and for me it was a big waste of time and money. Good luck with your.
589054
Have no idea man . I just plugged and it works . But I will double check for you.
1460865
I bought a defective device. I am not sure if it replaces 2 wire device. I would not buy this product
1138239
I have not set mine up yet , but I did test the system out to make sure all was functioning properly...I have the 27X Optical Zoom Dome PTZ IP Camera Outdoor High Speed Sold by bravolink , which also uses the RS485that is only a TWO WIRE communications...I can say ( IT WORKS GREAT ) ...No dissapointments here...Just make sure you have the Polarity right...
55424
It doesn't work at the logic voltage level that the technical rs232 spec requires. But the communications are serial protocol. You would need a logic level converter to use this with rs232.
2149862
Yes....just make sure the one you buy is a 1 input to 2 output model....I bought 2 because I didn't check and the signal doesn't work backwards. ...otherwise works ok
1791714
This is correct - RS232C does not use TTL levels and so strictly speaking this adapter isn't "RS232". However it does provide the same set of signaling wires and the same logical protocol as RS232C.
1790399
I have found that you must have two of the ports with a powered up devise attached to make it work. Other than that I have had no problems with it.