Telex operating instructions BTR-1 BLOCK DIAGRAM, Aux In, BTR-1 Block Diagram

LOW PASS

TRANSMITTER

FILTER

SQUARING

RECEIVER

AMP

DSP

A/D

D/A

PRE

EMPHASIS

DE

EMPHASIS

COMPRESSOR

EXPANDER

HEADSET

AUX

AUX	HS	MIC
OUT	LEVEL	GAIN

AUX

IN

AUX IN

GLOBAL/LOCAL

2W 4W

4W

4W 2W

4W

BTR-1 BLOCK DIAGRAM

IN

OUT

4 WIRE

LISTEN 1A

INPUT 1 OUTPUT 1 LISTEN 1B LISTEN 2A INPUT 2 OUTPUT 2 LISTEN 2B LISTEN 3A INPUT 3 OUTPUT 3 LISTEN 3B LISTEN 4A INPUT 4 OUTPUT 4 LISTEN 4B LISTEN 5A INPUT 5 OUTPUT 5 LISTEN 5B LISTEN 6A INPUT 6 OUTPUT 6 LISTEN 6B

INTERCOM	INTERCOM	INTERCOM	INTERCOM	INTERCOM	INTERCOM
PORT 1	PORT 2	PORT 3	PORT 4	PORT 5	PORT 6

Figure 1-1

BTR-1 Block Diagram

1-3