Bosch Security Systems | 2007-02 | 9922 141 70691 en
DCN Wireless | Installation and User Instructions | System Design and Planning en | 23
3.5.3 Power supply
The device that supplies power to the optical network is
the central control unit, refer to figure 3.1. The power
that the central control unit supplies includes the power
that the DCN uses.
If more power is necessary, you must install external
power supplies in the optical network. The devices
below can connect to external power supplies:
• LBB4410/00 Network Splitter (refer to the DCN
Next Generation Installation and User Instructions).
• LBB4414/10 Fiber Interface (refer to the DCN Next
Generation Installation and User Instruction).
3.5.4 Overload indication
Each optical network socket of the central control unit
has a red LED that comes on to show that there is a
power overload. An overload occurs when the
necessary power for the devices is greater than that
supplied. The sockets are deactivated and the devices
connected to the central control unit do not operate.
The socket checks every 8 seconds for power overloads.
3.6 Cabling
3.6.1 Introduction
Many devices in the optical network have two optical
network sockets that are interchangeable. You can use
the two optical network sockets to make a redundant
ring.
3.6.2 Definitions
The optical network uses two types of cable:
• POF
Plastic Optical Fiber.
• GOF
Glass Optical Fiber.
figure 3.1: Optical network power supply
OK Fault
Fault
RS232
Network
12
AudioIn1 AudioOut1 AudioIn2 AudioOut2
Mains
Port2
115:100-120V 50-60Hz T2.5A250V
230:220-240V 50-60Hz
T2AH250V
RS232 Port1
Trunk
12
230
P<65W
DCN- WCCU
DCN- WCCU
DCN- WCCU
P<65W
P<130W
OK Fault
Fault
RS232
Network
12
AudioIn1 AudioOut1 AudioIn2 AudioOut2
Mains
Port2
115:100-120V 50-60Hz T2.5A250V
230:220-240V 50-60Hz
T2AH250V
RS232 Port1
Trunk
12
230
OK Fault
Fault
RS232
Network
12
AudioIn1 AudioOut1 AudioIn2 AudioOut2
Mains
Port2
115:100-120V 50-60Hz T2.5A250V
230:220-240V 50-60Hz
T2AH250V
RS232 Port1
Trunk
12
230
Note
If only one of the optical network sockets has a
power overload, the two overload LEDs come
on.
Note
The two optical network connectors are the
same.
