Avaya Ambient Level Controller, LUALC manual Back View

Shield

Relay Outputs

Clock Inputs or Remote Control

Power Input

Mic Only

-24dB

-24dB

-18dB

-12dB

-6dB

Line In

Output

Line Out

Mic Only

NO

NO

NO

NO

Model FM-15

Telco In

NC

NC

NC

NC

24 Volts AC

+

-

Level

+

- C1

1

C

1

C

1

C

1

C

NO

C

NO C

NO C

NO C

NO

C

Loop Start

C1

G

C

1

1

1

1

1

Figure 1-1. Back View

		Noise Level			Paging Level
-18 dB	-12 dB		dB SPL			dB
-24 dB		100dB		105dB			Full Volume
Manual Level Control	-6 dB			95dB			-6 dB
		90dB
				85dB			-12 dB
		80dB
				75dB			-18 dB
		70dB
				65dB			-24 dB
		60dB

Set Maximum Noise Level

95dB

90dB100dB

85dB

105dB

Power

Automatic Level Control Telephone Input Active

Figure 1-2. Front View

	4 to	0 to 5 Volt	LED	LED	4 Volume
					Control
	20 Mil
			Driver	Display	Over-rides
	Rec.
					for High
					Noise Level
0 DBM			4 Bit	4 Bit	Clock
			Converter	Converter	Inputs
		Audio			FP Manual
		Detect
			Micro		or Automatic
C1		Gain Hold
					Level
			68HC705
					Control
G					Selection
			One of 8		600 Ohm
X 1 Buffer			0 dB	X 1 Buffer	600 Ohm
	AGC				Bal line
				or Level	Bal line
					Driver
			-6	Set	Driver
			-12		FP
					Selector
			-18		for Max.
					Noise
Loop St			-24
					FP PA
					Level
					Display

Figure 1-3. Ambient Level Controller Block Diagram

Overview 1-3