GT6201
_________________________________________________________________________________________
Page 16
DV 17001.03 Issue 4 01/2015
Microphone Connection
-
Dynamic Microphone
Pin No.
Pin Name
Direction
Function
P1-5
MIKE_DYN_HI
IN
Balanced input for dynamic microphone(s)
P1-6
MIKE_DYN_LO
IN
Balanced input for dynamic microphone(s)
For interfacing with dynamic microphone(s), the transceiver has a balanced input with an
impedance of 140 Ohm and a nominal sensitivity of 1.6 mV. This sensitivity level of 1 mV to 20 mV
is adjustable in the installation setup. Two dynamic microphones may be connected in parallel
(identical technical characteristics of the microphones are preferable).
Note:
1. For
installations with high interferences it is recommended to use sensitivity
level 2 mV to 20 mV.
2.
It is highly recommended to mount the jacks isolated from car´s frame in
order to avoid ground loops.
3.
Use microphone cables with shielded microphone wires.
Speaker Connection
Pin No.
Pin Name
Direction
Function
P1-1
SPK_HI
OUT
Speaker output signal
P1-14
SPK_LO
-
Speaker ground (return)
The speaker output provides nominal 4 W into 4 Ohm.
Headphone(s) Connection
Pin No.
Pin Name
Direction
Function
P1-2
HDPH1_A
OUT
Balanced output for headphone(s) 1
P1-3
HDPH1_B
OUT
Balanced output for headphone(s) 1
P1-20
HDPH2_A
OUT
Balanced output for headphone(s) 2
P1-22
HDPH2_B
OUT
Balanced output for headphone(s) 2
The headphone 1 output is a balanced, transformer-coupled output providing nominal 300 mW into
75 Ohm. For the use of a single shielded wire for headphone a unbalanced output configuration is
recommended. To achieve this P1-3 can be grounded (connection to pin P1-13/P1-25).
The headphone 2 output is balanced output providing nominal 200 mW into 75 Ohm.
Up to two headphones with self-impedance of 300 Ohm (or higher) may be connected in parallel on
each circuit, therefore up to four headphones can be connected at the same time.
CAUTION:
The headphone 2 output
shall be always floating (cannot be connected
in
unbalance configuration as headphone 1).
Panel Illumination
Pin No.
Pin Name
Direction
Function
P1-10
ILL_LO
IN
Illumination low input
P1-23
ILL_HI
IN
Illumination high input
