Figure 53. No. 42-A connecting block.
Locating Connecting Blocks.
Locate connecting blocks where they will be readily accessible for maintenance purposes.
For reasons of safety, avoid placing connecting blocks where installers or repairmen would be subject to
injury when making tests or inspection at the blocks. Never place them where the blocks and associated
wiring are exposed to likely sources of damage. Many desks are constructed so that one or more
connecting blocks can be mounted inside the desk pedestal. In such desks the telephone mounting cord
can be brought out through a slot or hole in, or near, the desk top and within a few inches of the front of
the desk. If special facilities for mounting connecting blocks inside a desk are not provided, mount the
connecting block on the side of the desk near the top and within 6 inches of the front. Another place to
mount the connecting block is on the baseboard near the telephone location. No matter where it is
mounted be sure the "R" terminal is in the upper right corner.
Connection at the C-Block.
a. It is now time to connect the house wire and the telephone to the C-Block. This is a simple
task. However, you the installer need to follow a few rules of the road to ensure it is all connected
correctly. The house wire is the first item connected. Using the side cutters, remove approximately
eight inches of the outer insulation from the house wire. Be sure to keep approximately one inch out at
the end. This will make it easier for you to work with the wire. At the bottom center of the C-Block
next to the wall is a groove and you simply slide the