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Bosch Security Systems | 2007-02 | 9922 141 70691 en
DCN Wireless | Installation and User Instructions | System Design and Planning en | 22
3 Optical network design
3.1 Introduction
The DCN Wireless has three parts: the wireless
network, the DCN and the optical network. This
chapter tells how to design the optical network.
3.2 Calculation tool
The calculation tool makes the planning and design of
the optical network easier. You can find the calculation
tool on the CD-ROM that is supplied with your system.
3.3 Limits
Make sure that these limits are not exceeded when you
make the optical network:
Limit 1: Control capacity
The maximum number of nodes in the optical network
is 63 (refer to section 3.4).
Limit 2: Number of devices
The maximum number of devices that you can connect
to the optical network of the central control unit is 16.
The maximum number of DCN-WAP Wireless Access
Points in the optical network is 1.
Limit 3: Power capacity
The maximum power that the optical network sockets
of the central control unit can supply is 65 W (refer to
section 3.5).
Limit 4: Cables
Refer to section 3.6:
• The maximum length of a POF cable is 50 m.
• The maximum cable length (POF and GOF) of the
optical network is dependent on the number of
nodes in the optical network.
• The minimum bend radius of a 90 degree bend in a
POF cable is 110 mm.
• The minimum coiling radius of a POF cable is
110 mm.
3.4 Control capacity
Each device in the optical network has a number of
nodes (refer to table 3.1). The maximum number of
nodes in the optical network is 63.
3.5 Power capacity
3.5.1 Introduction
Each device uses power and most devices do not have
an independent power supply.
3.5.2 Power consumption
The table shows the power each device in the optical
network uses.
table 3.1: Nodes
Device Nodes
DCN-CCU 2
DCN-WAP 1
LBB4402/00 1
LBB4404/00 1
LBB4410/00 1
LBB4414/10 0
INT-TX04 1
INT-TX08 2
INT-TX16 4
INT-TX32 8
PRS-4DEX4 1
table 3.2: Power consumption
Device Watt
DCN-WAP 4
LBB4402/00 7. 6
LBB4404/00 10.5
LBB4410/00 3.9
LBB4414/10 4.6
PRS-4DEX4 6.0
Note
The Integrus transmitters do not use power from
the system.