2.3.3
System Distributing Frame
The S.D.F. provides a common terminating point for the main equipment, stations and other
ancillary equipment. It also provides for any strapping necessary for provision of facilities.
The S.D.F. is constructed using the Krone LSA Plus terminating system. The terminal is an
insulation displacement type terminal and is available in 10 pair modules. The modules provide
the facility of opening the circuit for monitor or test purposes without the need to disturb the
terminations. See figure 35.
FIGURE 35 KRONE DISCONNECTION MODULE
(SIDE ELEVATION)
M A I N E Q U I P M E N T C A B L E S
C A B L E S
FIGURE 36 BACKMOUNT CHANNEL CABLE LAYOUT
The modules are mounted on a backmount channel. Each channel will accept 10 modules, thus
giving a total capacity of 100 pairs. See figure 36.
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