Bosch Appliances 3922 988 43318 Minute of remaining speech time J02, Solder spot J03 Open default

Digital Congress Network Installation and Operating Manual Chapter 2 - Contribution Equipment en 2-16

4.20-pole Micromatch connector for connection to:

-LBB 3541/00 FM Delegate voting control panel

-LBB 3542/00 FM Delegate/Chairman voting control panel with LC-display

-Custom-built solutions including push-button and LEDs

5.6-pole modular jack for LBB 3555/00 Intercom handset.

6.10-pole Micromatch connector for connection to:

-ID Chip Card reader panel LBB 3543/15.

7.2 m long cable terminated with a 6-pole circular connector for connection to the trunk-line.

8.Screw holes for securing the unit.

9.Switch cover panel.

10.Tie-wrap holes for securing attached cables.Tie--wraps are included with the unit.

11.Jumper for assigning the unit as either a delegate or as a chairman unit.

12.Initialization button (Init) used for initializing the unit during installation. Also used to reset the unit’s address (De-Init).

13.Input level potentiometer: ± 3 dB.

14.Initialization indicator (LED) indicating the unit requires initializing.

15.Selector switch for selecting:

-Asymmetrical microphone input or Symmetrical microphone input or Symmetrical microphone input with Phantom power supply (applicable to both inputs).

16.Input attenuation selection of: 0, 6, 12 or 18 dB (applicable to both inputs). Default setting: 6 dB.

17.Jumper J01for assigning connected units as either an entrance or exit unit. (See Table. 2-1.)

NOTES:

1.Jack socket marked (2) is ideally suited for loudspeaker panel LBB 3538/00 because its output is switched off when a microphone is switched on (preventing acoustic feedback). Jack socket out- put marked (1) is not muted when a microphone is switched-on

2.For connection details of the input sockets see LBB 3535/00 Dual Audio Interface Unit

67

5

4

10

		3	11
			12
1			13
1	2 1	2	Init +/- 3dB
2			14

4	5	6	7	dB	Sym	15
			Chairman	18	P12
				12
				6
			Delegate	0	Asym
					Attn

16

9

8 8

				PCB located inside the unit
			10
Installation
Solder spot	J01See table below
Solder spot	J02 Open	(default)
Solder spot	J02 Closed (To set LED
light ring Indication to flash for the last			J03		J03
minute of remaining speech time).			J02	J02	ND	J01
Solder spot J03 Open (default)				MIC		UNIT
Solder spot J03 Closed (no display			J01
unit connected)
Table 2-1. Jumper J01
Jumper	J01	Function
Chairman/delegate
Open		Assigned as Chairman unit
Chairman	OPEN	Assigned as Chairman unit
Delegate		Assigned as Delegate unit
Open		Assigned as Entrance unit
Chairman	CLOSED	Assigned as Entrance unit
Delegate		Assigned as Exit unit

BOSCH

FIG. 2-24 LBB 3540/15 connection FIG. 2-25 Layout LBB 3540/15 Multi-purpose connection unit

Bosch Security Systems 04-2003 3922 988 43318 en LBB 3540/15 Multi-purpose connection unit