Figure 6-18.--Dynalec 100/150-line automatic dial telephone switchboard.

DYNALEC 100/150-LINE SWITCHBOARD

Locate a station desiring to make a call.

Respond to dial pulses and extend the calling

The Dynalec 100/150-line switchboard (fig. 6-18)

is a combination electrical/ectromechanical switching

station to the called station.

system. The equipment consists of a 100-line or a

Ring the called station, selecting from among

150-line switchboard and an 8-line manually operated

the stations on a party line, if necessary.

attendant's cabinet. The system is fully automatic ex-

cept for shore access when the ship is in port, which

Supply various tones, such as dial tone, busy

requires the use of the attendant's cabinet. The switch-

tone, ring-back tone, and howler tone, as re-

ing mechanisms automatically perform the following

quired.

functions:

Figure 6-18.--Dynalec 100/150-line automatic dial telephone switchboard.