![](/images/new-backgrounds/1158540/15854069x1.webp)
256-KBPS LINE DRIVER (V.35, RS-530, OR X.21)
fuse rated for the required amount of current. You must avoid using repaired fuses or
Whenever it is likely that the protection offered by the fuse has been impaired, the unit must be made inoperative and secured against any unintended operation.
After you have attached the power cord and have made sure that the cord is properly grounded, you can plug the power cord into a working mains outlet.
CAUTION!
The unit has no power switch. It starts operating as soon as power of the proper type is applied to its POWER connector.
4.3.2LINE CONNECTION
The LINE connection provides an interface for the TX and RX signals between pairs of line drivers. To make this connection, attach the line wires to the terminal block on the line driver this way:
•XMT + (remote line driver) to RCV + (local unit);
•XMT – (remote unit) to RCV – (local unit);
•RCV + (remote unit) to XMT + (local unit);
•RCV – (remote unit) to XMT – (local unit);
•Optional: Shield or drain wire (line cable) to ground (local line
All connections are made on the back of the line driver.
4.3.3DTE CONNECTION
The interface (DTE) connector provides an interface for input/output data, as well as clock and control signals, between the line driver and a V.35 DTE or DCE. This connector is a standard
34