Page
50
of
54
7
PWR
5V DC input supply
8
In/out
Bidirectional IO/SPI DI. Used for Data TX in DHSG.
Connected to pin 1 in EHS connector.
Using relays, the audio path can be configured to use either the PHONE connector or pin 3-6 in DHSG
connector.
The audio pins can be configured using the same slider mentioned in PHONE interface:
Pin no.
Slider position
A
B
C
D
E
F
1
SPK-
SPK+
SPK+
MIC+
MIC+
MIC+
2
MIC+
MIC-
MIC+
SPK+
MIC-
SPK-
3
MIC-
MIC+
MIC-
SPK-
SPK+
SPK+
4
SPK+
SPK-
SPK-
MIC-
SPK-
MIC-
15.2
EHS Standards
15.2.1
DHSG
This section only gives a very brief overview of the DHSG standard.
DHSG uses an 8-pin RJ45 connector with pinouts as follow:
Pin no.
Description
1
Data Rx (Headset to phone)
2
GND
3
MIC-
4
SPK
5
SPK
6
MIC+
7
5V DC
8
Data Tx (Phone to headset)
15.2.1.1
DHSG Codes
The following DHSG codes are supported in Clave Base:
15.2.1.2
DHSG Commands
The following commands are supported:
