Quantcast Figure 6-20.--Switch and fuse panel for the 100-line switchboard, cabinet 2.
 

Click here to make tpub.com your Home Page

Page Title: Figure 6-20.--Switch and fuse panel for the 100-line switchboard, cabinet 2.
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
   
   

 

assemblies, as marked, from damage due to excessive
to the terminal side of the plug-in modules for testing
current.
and troubleshooting.
Tables 6-1, 6-2, and 6-3 describe the various oper-
Switch and Fuse Panels.-- The switch and fuse
ating controls (switches) and indicators located on the
panel in cabinet 1 contains alarm-type indicating fuses,
two switch and fuse panels.
equipment enable (in-service)/disable (out-of-service)
switches, the attendant's cabinet enable switch, and the
Circuit Card Cages.-- The circuit card cage in
emergency cut-in selector switch. Figure 6-19 is an
cabinet 1 of both the 100-line and 150-line switchboards
illustration of the switch and fuse panel for the 100-line
contains six circuit card assembly shelves. The cage in
switchboard located in cabinet 1.
cabinet 2 of the 100-line switchboard contains three
circuit card assembly shelves, and the cage in cabinet 2
The switch and fuse panel in cabinet 2 contains
of the 150-line contains five assembly shelves. Each
alarm-type indicating fuses, equipment enable/disable
circuit card shelf accommodates 14 plug-in modules.
switches, ringing generator transfer switches, traffic
The modules consist of integrated circuit (IC) packages
and all trunks busy registers, and alarm indicator lamps.
mounted on circuit card assemblies.
Figure 6-20 is an illustration of the switch and fuse panel
for the 100-line switchboard located in cabinet 2.
CROSSBAR SWITCHES.-- The standard
coordinate-type crossbar switch is used as the
The alarm-type indicating fuses located on the pan-
basic switching unit in the switchboard. This
els protect the various switchboard circuits and/or
Figure 6-20.--Switch and fuse panel for the 100-line switchboard, cabinet 2.
6-21

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

Integrated Publishing, Inc.