User manual

Chapter 2 Installation
- 12 - EC0-1815V2NAR
Pin Signal Name
1 +5V
2 NC
3 SPDIF_OUT
J6 (Pitch: 2.54mm)
4 GND
Pin Signal Name Note
1 SPEAKOUT_LEFT+
Positive Pole of the Left
Loudspeaker
2 SPEAKOUT_LEFT-
Negative Pole of the Left
Loudspeaker (Ungrounded)
3 SPEAKOUT_RIGHT-
Negative Pole of the Right
Loudspeaker (Ungrounded)
SPK1
(Pitch: 2.54mm)
4 SPEAKOUT_RIGHT+
Positive Pole of the Right
Loudspeaker
GPIO Connector
Pin Signal Name Pin Signal Name
1 GPIO1 2 GPIO5
3 GPIO2 4 GPIO6
5 GPIO3 6 GPIO7
7 GPIO4 8 GPIO8
9 GPIO9 10 GPIO13
11 GPIO10 12 GPIO14
13 GPIO11 14 GPIO15
15 GPIO12 16 GPIO16
17 +5V 18 +5V
GPIO1
(Pitch: 2.54mm)
19 GND 20 GND
Note: the factory default value of GPIO is TTL input and the voltage range for
input/output signal is 0-5V.