New answers tagged communication
0
votes
Does the loading of an RS485 transceiver depend on the length of the cable used?
Will the loading of the device while using a 1km long cable be the same as if I use, for eg, a 10m cable?
to a first approximation it will be the same load, the characteristic impedance of a cable ...
- 36.4k
1
vote
Does the loading of an RS485 transceiver depend on the length of the cable used?
Will the loading of (an RS-485) device while using a 1km long cable be the same as if I use, for eg, a 10m cable?"
The short answer is no. How will you test the step response and symbol rate ...
- 148k
4
votes
Does the loading of an RS485 transceiver depend on the length of the cable used?
I'm assuming you are parallel terminating the cable at the destination, with ~100 ohms? Then the DC loading will be less because of the resistance of the cable, which is in series with the ...
- 11.1k
-2
votes
Does the loading of an RS485 transceiver depend on the length of the cable used?
A cable has capacitance per unit length described in data sheet.
A 1000 meter cable has 100 times the capacitance of 10 meter cable.
Charging the wire capacitance does provide additional load that ...
- 172k
0
votes
Feasibility of high-speed omnidirectional communication through infrared light
The Ronja/Twibright Labs folks have been successful at transmitting 10BASE Ethernet over an optical link back in the 90s. With a higher power transmitter it should work for short range omnidirectional ...
0
votes
CANopen - explanation of TPDO and RPDO
The documentation is correct. You can't have two nodes on the bus with the same COB-ID's. RPDO sends message to the COB-ID of the TPDO. That way the TPDO can receive it. The TPDO replies by ...
1
vote
USB-C port as a power delivery and data transfer
Your device has 10k or 22k resistors to 5V. The role is fixed to be a DFP, which means it sources power and is a data host, and can't change role.
- 172k
Top 50 recent answers are included