How To Connect Two Computers Using Modems
#modem
#computer
#data transfer
#serial communication
#telecommunication
#RS-232
#dial-up
#networking
#hardware interface
#PC
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RS-232 Laser Transceiver
This project is intended for entry-level laser experimenters. The circuit enables communication between two computers with serial (RS-232) capabilities over a distance of 200 meters using a laser beam. A low-cost transmitter-only circuit is also provided for one-way communication and...
MD-1142/UGC Modem Time Diversity BR Communications 6029C Time Diversity Modem
BR Communications, which later merged with TCI to become TCI/BR and was subsequently acquired by Dielectric Inc., produces a series of chirp sounder transmitters and receivers. One notable feature of the Chirp Sounder system is the narrow shift order wire...
BayComm packet modem
Ensure the correct 9-pin D-type connector is used so that the pins fit properly into the board. The two outer mounting holes for the 9-pin D-type connector should have a diameter of 3mm, while the holes for the pins should...
Computer RS-23Z serial interface current loop circuit
This circuit is utilized in RS-232 serial interface and current loop circuit applications. It converts voltage signals into a 20mA current signal, with a maximum transmission rate of 1200 bits per second. The CCD IC1 and transistor T1 form the...
Internal modem schematics
This diagram illustrates the interaction between an internal SoftV92 Data Fax Modem and a phone line. The modem is manufactured by Zoltrix, although a Conexant utility identifies it as a "Churchill Data Modem." This schematic may be beneficial for repairing...
Microcontroller circuits
Connect the serial cable to the serial port. If using a USB to TTL, RS232, or serial converter, plug it into the USB port. Next, short the Tx pin to the Rx pin or the TxD pin to the RxD...
Your vending machine can talk thanks to a 5 embedded modem
Despite the remarkable growth of wireless connections, analog POTS, or "plain old telephone service," continues to excel in terms of cost and availability. Credit card terminals and home security systems are two examples of older connected devices. However, the expansion...
Microprocessor RS-232 Reset
This circuit enables a remote microprocessor to be reset by a controlling host via a remote RS-232 or similar protocol serial line. Utilizing a program loader on the remote host, a program can be downloaded and executed. This functionality allows...
DS Protocol (Data transfer via handshake)
The DS protocol was designed to provide firmware-based bidirectional host-to-slave interprocessor communications for situations in which no hardware solution is available and the host and/or the slave is incapable of tending the interface in real time. The only specialized hardware...