Bosch Appliances 3922 988 43318 manual LBB 3520/10, LC-display

Digital Congress Network Installation and Operating Manual Chapter 11 - System Set-up and Operation								en 11-16
	Incoming channel	Alphanumeric	Incoming channel	Out-going A-select	Out-going B-select	External message	Microphone with
			preselect keys with	key with LED	key with LED
	selector	LC-display				key	light-ring indicator
			LED Indicator	indicator (red)	indicator (red)

LBB 3520/10

Loudspeaker
volume control
(floor only)						Intercom call-key to
						chairman/operator
Floor						Out-going language
loudspeaker
						B-select keys
						Microphone
Headphone
						Mute key
tone/volume
controls
						Microphone status
						indicator (red)
	Floor LED	Incoming floor	Auto-relay	Channel engaged	Microphone
	indication	key	indicator	indicators (yellow)	On/Off key

	Incoming channel			Outgoing Ch.A	Outgoing Ch.B	Call channel
3.5 mm	quality indication			language	language
	Mic/headset					Microphone
headphone socket	select switch
	FLOOR	+	-	9	12	Headphone
	2ENG	3FR	4GER	Japanese	Indonesian
						Incoming channels
Headset connector	6.3 mm				LC-display	Outgoing channels
5-pole DIN	headphone socket
	Incoming channel
	language display
	(abbreviated)

FIG 11-8 Operation Interpreter unit LBB 3520/10

Bosch Security Systems 04-2003 3922 988 43318 en Interpretation