Now you should be able to install a telephone set TA-312/PT on a pole or tree for LB operation.
PART B - TELEPHONE SET TA-341( )/TT
15. Telephone set TA-341( )/TT is a 4-wire, pushbutton, desk type telephone that is used primarily
indoors. It should be in a building or inside a tent. It must be protected from the weather.
16. The voltage requirements for this telephone is 4.4 to 6.4 volts DC. This is provided by batteries
BA-42 or BA-3042. They are installed in the telephone base in the compartment between the two
controls marked RINGER VOLUME and the MODE SELECTOR switch. The battery that is next to the
RINGER VOLUME control has the positive terminal up. The net battery has the positive terminal
down, then up, and finally down. When the batteries are in position, you must close the compartment
door and secure it with a screwdriver. (See Figure 1-3.)
Figure 1-3. Battery compartment and installation.