Graph Reference Examples - Bosch Digital Congress Network Installation And Operating Manual

Digital Congress Network | Installation and Operating Manual | Chapter 10 - Installation Techniques

10.4.3 Graph reference examples

FIG 10-12 in combination with the PCF graph
PCF value of a single trunk-outlet. Using these examples, the total PCF value of all three trunk-outlets
of a CCU can be calculated.
TS = Trunk-splitter
TT = Table-top discussion units
CON = Concentus units
NOTE:
(1 m = 39.37 in)
Bosch Security Systems | 04-2003 | 3922 988 43318 en
(FIG 10-10) gives examples of how to calculate the
DA1 = Dual Audio Interface units
MPC = Multi-purpose Connection units
Get other manuals https://www.bkmanuals.com
GRAPH REFERENCE
Y axis X axis (max.)
PCF Ext. Cable (m) BLOCK DIAGRAMS
TT 1 TT 49
TS
60 0
50 x 2 m = 100 m
DAI 1
60 0
40 x 2 m = 80 m
MPC 1
60 0
30 x 2 m = 60 m
CON 1
60 0
24 x 2 m = 48 m
TT
TS
Tap-off
35 100
100 m
34 x 2 m = 68 m
Ext. cable
DAI
100 m
TS Tap-off
35 100
22 x 2 m =44 m
Ext. cable
MPC
100 m
TS Tap-off
35 100
17 x 2 m = 34 m
Ext. cable
CON
100 m
TS
Tap-off
35 100
13 x 2 m = 26 m
Ext. cable
FIG 10-12 PCF Calculation examples for a single trunk-line
Calculating the PCF of a System with respect to cable length
en | 10-9
PCF CALCULATION
Tap-off
TT = 59 x 1 PCF = 59 PCF
TT 50 TT 59
TS = 1 x 1 PCF = 1 PCF
TOTAL = 60 PCF
9 x 2 m = 18 m
DAI = 40 x 1.5 PCF = 60 PCF
DAI 40
TOTAL = 60 PCF
MPCU = 30 x 2 PCF = 60 PCF
MPC 30
TOTAL = 60 PCF
CON = 24 x 2.5 PCF = 60 PCF
CON 24
TOTAL = 60 PCF
TT = 34 x 1 PCF = 34 PCF
1 TT 34 TS = 1 x 1 PCF = 1 PCF
TOTAL = 35 PCF
+ Ext. cable = 60 PCF
DAI = 22 x 1.5 PCF = 33 PCF
TS = 1 x 1 PCF = 1 PCF
1 DAI 22
TOTAL = 34 PCF
+ Ext. cable = 60 PCF
MPC = 17 x 2 PCF = 34 PCF
TS = 1 x 1 PCF = 1 PCF
1 MPC 17
TOTAL = 35 PCF =
+ Ext. cable = 60 PCF
CON =13 x 2.5 PCF = 32.5 PCF
1 CON 13
TS = 1 x 1 PCF = 1 PCF
TOTAL = 33.5 PCF =
+ Ext. cable = 60 PCF
2