RS485 CONNECTOR TYPES SERIAL INTERFACES ARE

Type A is the preferred bus type nowadays. IEC 61158-2 defines following categories for cable types for the data transfer range of 31.25 kbit/s. PROFIBUS PA, FOUNDATIONTM Fieldbus). Bus-types for 31.25 kbit/s 100 (e.g.

Rs485 Connector Types Serial Interfaces Are

The maximum data rates on RS-232 can reach up to 20 Kbps. Connectors and connector pin.Commonly used asynchronous serial interfaces are of three types: EIA/TIA RS-232, RS-422, and RS-485.RS-232 is by far the most popular interface used on devices such as PC COM ports as well as networking, consumer, and industrial devices for distances up to 15 meters (50 feet). Protocol implementation and other parts e.g. Application note AN020: connecting modules with RS485 interface (V1.10. SaleMini-USB or RJ45 вЂ“ RS-232 with Cisco proprietary console pinoutScrew terminal RS485 3 m cable fitted with an RJ45 connector and stripped at the other end VW3 A8 306 D30 Profibus DP gateway (LA9P307) RJ45 RS485 1 m cable fitted with 2 RJ45 connectors VW3 P07 306 R10 Fipio (LUFP1) or Profibus DP (LUFP7) or DeviceNet (LUFP9) gateway RJ45 RS485 0.3 m cable fitted with 2 RJ45 connectors or 1 m cable fitted with. DB9 Male Terminal to RS232/RS485 Serial Conversion Board with case DB9 Male Terminal to RS232/RS485 Serial Conversion Board with case.

RS-422 interfaces allow data rates up to 10 Mbps. It was intended to be a replacement for RS-232C. It offers much better speed and noise immunity, as well as longer cable length.

RS-485 interfaces need only two wires for half-duplex communication. RS-485 interfaces support a multidrop, multimaster serial bus, which is an improvement over RS-422 interfaces. At reduced speed, it can operate at distances up to 1200 meters (0.75 mile). It can also be used for data rates up to 10 Mbps. RS-422 also supports multidrop, enabling multiple RS-422 devices to be connected on a single interface.The third interface type is RS-485.

Signal flow is in the direction of the arrows. The signal names match each other and connect pin for pin. The output signals on a DTE port are inputs to a DCE port, and output signals on a DCE port are inputs to a DTE port. They have the same signal names and PINs, but the signal flow is the opposite. RS-232 ports are of two types: Data Terminal Equipment (DTE) and Data Circuit Terminating Equipment (DCE).

These settings are platform dependent and only one or more might be supported.CTS-Alarm: Alarm device that only uses Clear to Send (CTS) for call controlDTR-active: Leave DTR low unless the line has an active incoming connection or EXECDialin: Configure line for a modern dial-in modemHost: Devices that expect an incoming modem callInOut: Configure line for incoming AND outgoing use of modemPrinter: Devices that require DSR/CD activeAlways-on: Configure line for a modern always-on modemAnswer-timeout: Set interval between raising DTR and CTS responseAutoconfigure: Automatically configure modem on lineDtr-delay: Set interval during which DTR is held lowOnhold: Set the V.92 modem on hold timer durationConfigures the parity settings for a port.Configures the transmit and receive speed for a port.Maximum speed is platform dependent and also depends on connection type and distance.Here is a reference document that provides more detailsThe Raw Socket Transport feature provides a method for encapsulating serial data over a TCP or UDP packet and transferring the data across an IP network. Configuration parameters for line interfacesDefines which protocols can be used to connect to a specific line.Lapb-ta, lat, mop, none, pad, rlogin, ssh, telnet, udptn, v120Determines the protocols that can be used for outgoing connections from a line.Specifies the protocol for the router to use if the user did not specify a protocol.Configures the number of data bits in a character for a port.Configures the inactive terminal timeout for a port.Configures the modem settings for a port. Care should be taken to ensure that these configuration parameters on router serial ports (such as speed, parity, etc.) match the configuration on the connected serial device.Table 4.

The serial port can also be accessed from Cisco IOx applications running on the gateways. Just press the Enter key.Serial relay line allows serial ports to pass traffic directly to the guest OS serial ports.