TB852 3BSC950263R1

Brand:ABB

Type:TB852 3BSC950263R1

Origin:  the Swiss

Warranty: 365 days

Colour: new/used

Shipping method: Courier delivery

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EIA-232-D Connections The EIA-232-D standard defines the electrical and mechanical aspects of this serial interface. The interface employs unbalanced (single-ended) signaling and is generally used with DB25 connectors, although other connector styles (e.g., DB9 and RJ45) are sometimes used as well. Table A-1 lists the standard EIA-232-D interconnections. Not all pins listed in the table are necessary in every application. To interpret the information correctly, remember that the EIA-232-D serial interface was developed to connect a terminal to a modem. Serial data leaves the sending device on a Transmit Data (TxD) line and arrives at the receiving device on a Receive Data (RxD) line. When computing equipment is interconnected without modems, one of the units must be configured as a terminal (data terminal equipment: DTE) and the other as a modem (data circuit-terminating equipment: DCE). Since computers are normally configured to work with terminals, they are said to be configured as a modem in most cases.

1. A high EIA-232-D signal level is +3 to +15 volts. A low level is -3 to -15 volts. Connecting units in parallel may produce outof-range voltages and is contrary to specifications. 2. The EIA-232-D interface is intended to connect a terminal to a modem. When computers are connected without modems, one computer must be configured as a modem and the other as a terminal. Interface Characteristics The EIA-232-D interface standard specifies all parameters for serial binary data interchange between DTE and DCE devices using unbalanced lines. EIA232-D transmitter and receiver parameters applicable to the MVME162 are listed in Tables A-2 and A-3. Table A-2. EIA-232-D Interface Transmitter Characteristics Parameter Value Minimum Maximum Unit Output voltage (with load resistance of 3000? to 7000?) ±8.5 V Open circuit output voltage ±12 V Short circuit output current (to ground or any other interconnection cable conductor) ±100 mA Power off output resistance 300 ? Output transition time (for a transition region of -3V to +3V and with total load capacitance, including connection cable, of less than 2500pF) 2 μs Open circuit slew rate