Intercall 600/700 Installation & Operation Guide Issue 4.27 Page 20 of 78
FJB’s in use.
This page shows the typical installation of a L717/L7717 Master Power Supply and a single FJB2 Fused Junction Box.
This application circuit may be repeated, where the ‘PSU’ is a Booster Power Supply, providing the input for all
Booster Power Supplies are connected to the master output. See page 33
Spine cable to booster Power Supply
input or input of another FJB2
NETWORK SPURS
Non Speech: 0.22mm
2
Cable
Speech: Belden 8723 0.32mm
2
Cable
Spurs with a maximum of 25 current
units per spur from FJB2
L717
L7717
NETWORK SPINE
Non Speech: 0.75mm
2
Cable
Speech: 0.75mm
2
& Belden 8760
Maximum of 100 current units per
Spine and Power Supply.
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