Two important advantages of a common-battery system over a local battery system are:
more answering positions and faster answering.
automatic signaling and faster answering.
provisions for supervision and three conductor cords.
automatic signaling and provision for supervision.
Line signaling on a common-battery switchboard is usually accomplished with:
push to talk switch.
When a telephone line terminates in a switchboard this terminal point is called a:
There are two types of line jacks used. They are called:
simple jacks and cut-off jacks.
cut-off jacks and open jacks.
auxiliary jacks and cut-off jacks.
simple jacks and ring down jacks.
CHECK YOUR ANSWERS AGAINST LESSON 2 SOLUTION SHEET (PAGE 192) AND MAKE NECESSARY