Siemens Cerberus CS1140 - Connection Lines between Control Unit and External Operating Units; Power Supply (24 V)

e4595e15
49
Fire & Security Products
Siemens Building Technologies Group
05.2003
15.3 Connection lines between control unit and external operating units
Options:
B3Q321 (Fire department control terminal)
B3R051 (Parallel indicators)
Printer, paging system/pager
2..11 leads
Loop C-Bus
max. 1000m per Loop with ø 0.6mm (incl. return line)
max. 1800m per Loop with ø 0.8mm (incl. return line)
Control terminal
AlgoPilot B3Q...
Control terminal
AlgoPilot B3Q...
Control unit CC11/CI11
E3I040 (LON interface)
When planning a system the following condition must be complied with:
At least one operating unit must comply with standard EN54, i.e. it must be equipped with
emergency operation and emergency power supply.
EN54 requirements:
Communication as loop line  design C-Bus as a loop line
Operating units also with emerg. operation  3 additional wires for emergency operation
second de-coupled 24V supply  3 additional wires or autonomous power
supply
The number of wires in the connection cable depends on the application and the dis-
tances between the stations:
Is the operating unit supplied with 24V from the control unit or autonomously?
Is an emergency power supply provided according to EN54?
Is the emergency operation circuit (emergency operation) installed?
Application
C-Bus 24V supply Emergency
power supply
Emergency op-
eration circuit
Number of
wires
24V supply from control unit
EN54 complied with
F
(2 wires)
F
(3 wires)
F
(3 wires)
F
(3 wires)
11
24V supply from control unit
without emergency operation and
emergency power supply
F
(2 wires)
F
(3 wires)
5
autonomous power supply
EN54 complied with
F
(2 wires)
F
(3 wires)
5
autonomous power supply
without emergency operation and
emergency power supply
F
(2 wires)
2
Note:
– Emergency operation circuit required including between CPUs or for a separately connected Gateway
– Emergency operation circuit and emergency supply are not designed as a loop line
– Emergency supply via separate cable or C-Bus feedback
15.4 Power supply (24V)
Operating units AlgoPilot B3Q... are designed for the voltage range 18..45VDC
The maximum current at 24V is 400mA
Max. length of line (approximate):
for cables ø 0.8mm  180m
for cable cross-section 1mm
2
 360m
The current consumption for the options (fire department control terminal, parallel indi-
cator terminal, printer, paging system/pager) must be taken into account separately