RTX RTX725 Series - EHS Standards; Dhsg; Ea40

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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 RTX743x:
15.2.1.2 DHSG Commands
The following commands are supported:
15.2.2 EA40
This section gives an overview of EA40 standard. EA40 uses a 6-pin RJ12 connector with pinouts as follow:
Pin no.
Description
1
GND
2
5V
3
SDO
4
CS
5
CLK
6
SDI