Connecting to Your Radio
When installed on the modem disconnect headers, the DE1200 configures the rear
panel DB-15 connector according to the following
chart.
DB-15 pin
Function
1
PTl'
-
Applies a ground when transmitting
2
Receive audio - Audio from your radio
3
AFSK-Audio from the Data Engine to the radio
8
DCD -External carrier detect (if desired)
9
Ground - Receive audio return lead
10
Ground -AFSK return lead
11
Ground-Common ground to radio
NOTE
All
grounds on the Data Engine are common, and are not all required to
be
connected.
The DE1200 Modem is set for no equalization
as
required when using audio directly
from the discriminator of your radio.
If
you are using audio from an external speaker
jack refer to the "Equalization" section of this manual.
A
typical connection
to
a
VHF
radio when using the DE1200 modem would be:
Pin 1 from the Data Engine DB-15 to your radio PTl' input (STBY)
Pin 2 from the Data Engine DB-15 to the external speaker je.ck
or
discriminator output
from your radio
Pin 3 from the Data Engine DB-15 to the mic input of your radio
Pin 8 normally would not
be
connected
Pin 11 from the Data Engine DB-15 connects to the ground of your radio
0©©©©©0©
©@®®@@@
Male (Looking at Pins)
DB-15 Connector
e
Copyright 1990,
Kantronics
Co.,
Inc. All
Rights
Reserved.
Duplication or
this
manual without permission of
Kantlonics Co.,
Inc. is
prohibited.
©0©©©©©0
@@@®®@©
Female (Looking at Holes)
5
DE1200 Modem
April 3,
1990
