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PHYSICAL
CHARACTERISTICS
Buffer Capacity
Line Terminal
Board
• The CCM consists of the following subunits:
Cabinet
Control Electronics
Control Panel
Maintenance Panel
Signal Termination Boards
Power Supply
Buffers
Reference Information
•
Depending upon the quantity and type of buffer required for each
application, one or the other of two types of CCM cabinets is supplied.
Future requirements must be considered prior to installation, since field
conversion from one type to the other is not possible
o
Type I - provides up to 3 10-block rows and 16 9- block rows for buffers
o
Type II- provides up to 16 10- block rows and 32 9- block rows for buffers.
This type is provided only when required for CCM Models
70/668-21 and 31.
Where buffer dimensions permit, several buffers can be located in one
CCM plug-in row. However, each must occupy a contiguous space. Space
left in a row which is not sufficient to accommodate a buffer can be used
for buffer special features.
However, a buffer special feature must be
adjacent to the buffer in the same row or in a row immediately above or
below that buffer.
Buffers which occupy more than one row must occupy
adjacent rows in the same area.
•
The Line terminal board is located at the bottom of the left end of the
cabinet and is accessible through the doors provides fixed terminations for
lines which employ current (telegraph-type) interfaces. Provision is made
for installation of 48 telegraph line filters provided with various buffers.
Overall Cabinet Dimensions
Height:
Width:
Depth:
Weight(Without
Buffers)
Type I:
1090 Ibs.
Type II:
1793 lbs.
3-20
62"
54-5/8"
24-3/4"
Type II
62"
104-1/4"
24-3/4"
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