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3. SM 40 BASIC SYSTEM AND EXTENSION FRAME
3.2
Extension Frame
Single 19-inch rack frame, capable of holding 10 SM40 circuit cards. Complete with power supply, and
one Interconnection and Termination Board.
A single rack frame, capable of holding, and interconnecting 10 SM40 circuit cards, has enough room to
accomodate the Basic (starter) System, described elsewhere, plus additional Pilot-tone generator cards,
Control Relay Cards and Surveillance Switch Cards.
When the number of terminations boards required in an SM40 system exceeds the amount of space offered
in this single rack frame, Extension Frame LBB 1360, is available.
Units included with Extension Frame LBB 1360:
1x
1x
1x IB
1x TB
These components, mounted in the 19-inch rack frame, are supplied tested, and wired to accept and power
up to 10 SM40 circuit cards.
PE 1113
Single 19-inch rack frame
Power Supply Unit +15V/ -15V
Interconnection Boards
Termination Boards
SM40 EXTENSION FRAME
LBB 1360
TB1
FRONT TOP VIEW
PE1113/50
LBB 1377/00
LBB 1360
3
9
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