Can I use Ethernet cable for RS232?
RS232 Distance Limitations An RS232 to Ethernet Converter is ideal when users want to replace RS232 serial cabling with Ethernet but maintain the use of devices that were active on the serial network. Ethernet cabling is generally run up to 100m (328ft).
Does RS232 need to be shielded?
RS-232 serial interface cables should be shielded, low capacitance cables, ideally designed specifically for serial data transmission. The shield should be grounded at both ends of the cable.
Is RS232 same as Ethernet?
Ethernet is a type of serial communication. There are many differences between Ethernet and other serial protocols though. The voltage levels and cable impedances are different but the primary difference is that Ethernet is an intelligent communication while RS422, RS232 are not.
What is shielded twisted pair in networking?
Shielded twisted pair (STP) is a special kind of copper telephone and local area network (LAN) wiring used in some business installations. It adds an outer covering or shield that functions as a ground to ordinary twisted pair wiring. Each signal on twisted pair requires both wires.
What do you need to know about RS-232?
RS-232 specifies the types of wires and connectors, the pinning of the connectors and the function of each wire, the voltage levels and their meanings, and control procedures such as handshaking.
How many pins does a RS232 data interface need?
These type of units need enough voltage & current to power them self’s up. Typical URART (the RS-232 I/O chip) allows up to 50ma per output pin – so if the device needs 70ma to run we would need to use at least 2 pins for power.
What do you need to connect a RS-232 port to a computer?
Few computers come equipped with RS-232 ports, so one must use either an external USB-to-RS-232 converter or an internal expansion card with one or more serial ports to connect to RS-232 peripherals.
What is the capacitance limit for RS-232?
In revision D of EIA-232, the D-subminiature connector was formally included as part of the standard (it was only referenced in the appendix of RS-232-C). The voltage range was extended to ±25 volts, and the circuit capacitance limit was expressly stated as 2500 pF.