Bosch Appliances 3922 988 43318 manual Unit layout possibilities using trunk-splitters

Digital Congress Network Installation and Operating Manual Chapter 10 - Installation Techniques en 10-11

10.6.2 System layout (without extension units)		10.6.3 System with Extension units
Using extension cables,Trunk-splitters and Tap-off units, the length of cable on a system unit can be		FIG 10-15shows the Audio Media Interface unit connected directly to the Central Control Unit,
lengthened, and cable runs can be laid out in diverse directions. FIG 10-14gives a typical layout		however in principle the unit can be connected to any convenient point within the DCN network
configuration using a Trunk-splitter and extension cables LBB 4116/xx.		cabling.
		The illustration shows a centralized configuration where all the DCNs Central Control equipment is
		installed in a 19”-inch rack for example.
		In a de-centralized configuration, the Extension Power Supply unit and the Audio Media Interface unit,
Trunk-line		are placed in different locations separated from the Central Control equipment.
LBB 4114/00	To CCU	NOTE: The example below uses a Central Control Unit LBB 3500/05 having a total power
		handling capacity of			90 PCF. Using a Central Control Unit LBB 3500/15 the power han-
Tap-offs
		dling capacity is limited to 180 PCF (max. 60 PCF per output).
Trunk-line
		CENTRALISED SYSTEM
		LBB 3500/05			LBB 3508/00
		Port 1	Rec.	Line	Output 1 Output 2 Output 3 Output 4 Trunk	Tap-off
					Trunk
			In	In
			Out	Out	115 V -T4A 230 V -T2A	115 V T4 A 230- V T2A
				Symmetrical
		PCF ≤ 90 (max.)			PCF ≤ 90 (max.)
Tap-offs		DE-CENTRALISED SYSTEM

LBB 4106/00

Trunk-line		To CCU	Port 1	Rec.	Line
							Trunk	Trunk	Tap-off
				In		In
		Trunk-line
	LBB 4114/00			Out		Out	115 V -T4A 230 V -T2A
									11 5V-T 4A 2 30V -T2A
					Symmetrical			In

FIG 10-14 Unit layout possibilities using trunk-splitters	PCF ≤	60 (max.)	PCF ≤ 180 (max.)
			LBB 3508/00
	Output 1 Output 2	Output 3 Output 4 Trunk	Tap-off
			115 V T4A 230- V T2A
			PCF ≤ 90 (max.)
	FIG 10-15 Typical system interconnection

Bosch Security Systems 04-2003 3922 988 43318 en Stand-alone Systems