This is a Eurocard communications board for TDS2020F or TDS9092 computers (or earlier types). It contains an IEEE-488 Talker/Listener interface and two RS232 ports with all baud rates from 75 to 38400. A DIP switch on the board selects the IEEE address. The board comes complete with 45cm ribbon cable terminated in an IEEE-488 specification socket
Click here to download the full size of the above Circuit.
for mounting on your instrument. The TDS971 addresses are already used on the TDS9092 for internal RAM. Interchange the signals to pins a4 and a5 of the TDS971 (address lines A8 and A9). This will change the address of the board from 01xx to 02xx, and examples in this section have been changed to reflect this. The board is single Eurocard format (160mm x 100mm) and has a DIN 41612 type C connector (two rows of 32 pins 5. 04mm apart). Its pin connections correspond with both the TDS2020F and TDS9092 and are given below. You will need the TDS9092-PLUG type to work with this board. The IEEE-488 interface is brought to a 24-pin DIL socket on the solder side of the board into which the ribbon cable assembly provided with the board is plugged. The other end of the ribbon is an IEEE-488 24-pin socket for mounting on the case of the instrument. Put in the DIL plug so that the ribbon cable faces to the rear of the board. The IEEE-488 connections will then be correct on the other end of the ribbon cable. A third connector is a 9-pin D-type socket on the front of the board. It carries one of the two RS232 ports and also power from the computer which can be led to a remote location. Two uncommitted signal wires go from this socket to the backplane. Pin connections are: For full details of use of an ACIA see the manufacturer`s data sheet (e. g. Motorola MC68A50 or Hitachi HD68A50). The following is an example of its use. There are two...
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
characters left: