Motorola PM1200 Installation Manual page 21

Standard Configurations: Planning the Installation
Pin
1 External
Speaker-
2 External Mic
Audio
3 Digital In 1
4 Digital Out 2
5 Flat_TX_Audio
(NPD Data Out)
6 Digital In 3
7 Ground
8 Digital In/Out 4
9 Digital In 5 with
Wakeup
Emergency
10 Ignition Detect
11 Receiver Audio
12 Digital In/Out 7
13 Switched
Battery Voltage
14 Digital In/Out 8
October, 2007
Table 2-1. Connector Pin Functions
Function
Speaker - and Speaker + (Pin 16) are used to connect an
external speaker. The audio PA is a bridge amplifier with a
minimum load resistance of 3.2 Ω. The internal speaker
can be disabled by removing the control head. Disconnect
the internal speaker and assemble the control head back
to the radio.
External or Emergency Mic depends on dealer
programming. This microphone signal is independent of
the microphone signal on the microphone connector. The
nominal input level is 80mV for 60% deviation. The DC
impedance is 660 Ω and the AC impedance is 560 Ω.
This is a digital input only and the primary use for this pin
is external PTT. This pin must be used if fast DATA PTT is
required.
(See Note 1).
This is a digital output only and the primary use for this pin
is as an external alarm output (See Note 3).
This input is intended for injecting signals into the transmit
path that should not be filtered; for example, the analog
output of a modem.
The nominal input level is 150mVrms for 60% deviation.
The impedance is greater than 25kΩ.
This is a digital input only. Function depends on dealer
programming.
(See Note 4).
Used as ground for both analog and digital signals
This is a digital input/output depending on dealer
programming.
(See Notes 1, 2).
This is a digital input only. Emergency can be enabled via
the CPS. To activate, this line must be connected to
ground; this will turn on the radio. The CPS details which
functions may be assigned to this pin by the codeplug.
Connecting this line to the ignition line of the vehicle will
automatically turn the radio on when the ignition of the
vehicle is turned on.
There are two possible outputs: (1) Discriminator Audio;
and (2) Continuous filtered RX audio. The nominal output
level for Discriminator Audio is
330m Vrms at 60% deviation and for Filtered Audio 600m
Vrms at 60% deviation at 1kHz. Function depends on
dealer programming.
This digital input/output function depends on dealer
programming.
This voltage is available when the radio is switched on.
The maximum current is 1A.
This is a digital input/output depending on dealer
programming.
(See Notes 1, 2).
Description
2-3
6880309U11