Canadian Agricultural Products. To check for restrictions on fruits and vegetables from Canada, you can search the FAVIR database at www.aphis.usda.gov/favir/. Click the âFresh Fruit and Vegetablesâ link to the right to learn how to use the database.
The standard voltage for the telephone system is 48 volts DC. Ringing voltage is much higher, around 90 volts AC at a low frequency. When you place a load of about 600 ohms on the line, you are off hook or connected. Telephone ringer voltage is 50.5 volts at standing and -50.5 volts at ringing.
Telephone lines terminate in an RJ-11 phone jack which has two copper wires. These carry both the DSL signal and the telephone signal on the same wire. You can wire a two-plug RJ-11 phone jack in parallel to provide one jack for the telephone, and another jack for the Internet.