Quantcast Figure 5-19.--Plotters transfer switchboard.
 

Click here to make tpub.com your Home Page

Page Title: Figure 5-19.--Plotters transfer switchboard.
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home

   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 

Figure 5-19.--Plotters transfer switchboard.
lever-operated spring return or spring return rotary
circuit 81JS. Any of the remaining jackboxes, JS3
through JS10, may be connected to one of the five
switches are provided at all calling stations. Buzzers,
sound-powered circuits by simply closing the associated
horns, bells, and drop-type annunciators are installed at
switch.
the associated called stations. Buzzers are used in low
noise level spaces. Horns are used in high noise level
CALL AND SIGNAL
spaces, and bells are used in other spaces. Annunciators
CIRCUITS
are provided at all stations where two or more similar
audible signals are required.
Call and signal circuits used in conjunction with a
ship's sound-powered telephone system provide the
To use the circuit, the caller operates a switch at the
means of calling and signaling between stations of the
calling station, which in turn energizes the audible
various sound-powered telephone circuits. The call and
and/or visual signal devices located at the called
signal circuits are designated E, EM, and MJ.
station.
CIRCUIT E - SOUND-POWERED
Circuit E is divided into the following functional
TELEPHONE CALL
circuits:
CIRCUIT
1E-Cruising and miscellaneous
Circuit E provides a means of signaling between
2E--Ship control
sound-powered telephone stations, where not more than
six stations are to be called by the calling station. The
3E--Engineering
circuit operates on 120-volt, 60-Hz, single-phase power,
4E--Aircraft control
which is usually supplied by the main IC switchboard.
Watertight and nonwatertight push buttons and
5E--Weapons control

Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc.