Telex RADIOCOM TR-1 - Manual (Page 6)

1-3
LISTEN 1A
LISTEN 1B LISTEN 2B LISTEN 3A LISTEN 3B LISTEN 4A LISTEN 4B LISTEN 5A LISTEN 6A LISTEN 5B INPUT 1 OUTPUT 1 LISTEN 2A OUTPUT 2 INPUT 4 OUTPUT 4 INPUT 3 OUTPUT 3 INPUT 5 OUTPUT 5
INTERCOM
PORT 1
INTERCOM
PORT 2
INTERCOM
PORT 3
INTERCOM
PORT 4
INTERCOM
PORT 5
INTERCOM
PORT 6
INPUT 6
4W
IN
4 WIRE
4W
OUT
2W 4W 4W
BTR-1 BLOCK DIAGRAM
HEADSET
GLOBAL/LOCAL
OUTPUT 6 LISTEN 6B
COMPRESSOR
EXPANDER
PRE
EMPHASIS
DE
EMPHASIS
A/D LOW PASS
FILTER
TRANSMITTER
RECEIVER
SQUARING
AMP
DSP
D/A
AUX
IN
AUX
OUT HS
LEVEL
MIC
GAIN
AUX
INPUT 2
2W
AUX IN
Fig ure 1-1
BTR-1 Block Diagram