| ??? 01/03/05 12:23 Read: times |
#84258 - Cross-Point Switch Responding to: ???'s previous message |
The usual application of a crosspoint switch is to have the telepone lines on, say, the rows (X) and the telephone sets on the columns (Y) - thus allowing any telephone set to be connected to any telephone line.
A telephone exchange (Central Office) is thus just one big crosspoint switch! In such appilcations, the connection you describe - linking two rows (X) together - essentially implements a loopback, with one of the columns (Y) "listening-in" The data sheet says that all the switches are individually addressable, so you should be able to do this if you really want to; as Russel says, Table 1 on p9 shows you the truth table: the details for Y0 are complete, you just have to follow the pattern to fill-in the blanks for the other colmns (Y1-7). |
| Topic | Author | Date |
| Columns and rows connection | 01/01/70 00:00 | |
| How | 01/01/70 00:00 | |
| Sorry the correct Link: Oooops | 01/01/70 00:00 | |
| How long you have been trying | 01/01/70 00:00 | |
| Wondering the same thing | 01/01/70 00:00 | |
| Also need to add. | 01/01/70 00:00 | |
| Too easy to start a thread - Craig | 01/01/70 00:00 | |
| Perhaps | 01/01/70 00:00 | |
| Better way | 01/01/70 00:00 | |
Not so good | 01/01/70 00:00 | |
| What's the problem.... | 01/01/70 00:00 | |
| Binary Counting | 01/01/70 00:00 | |
| Cross-Point Switch | 01/01/70 00:00 |