Specifications

SB-P-06-4066
sepura
Mobile & Gateway Accessory i/f
specification
30th July 2012
Page 30 of 39
Issue 7c
© Sepura plc 2011
7
MIC_OUT_SIG
O
Microphone output
Buffered version (0dB gain) of the
Jack Microphone input signal. AC
coupled with internal 6k8 load
resistor to MIC_OUT_GND (see note
3)
8
MIC_OUT_GND
-
Microphone output
return
9
EAR_SIG
O
Earpiece output
32 ohms, power capability = 100 mW
max (see note 2 and 3 below).
10
EAR_GND
-
Earpiece return
-
Notes:
One wire data for support of an RCU such as the Sepura 300-00164
The earpiece amplifier does not have any output current limiting resistors fitted and is
designed to drive a minimum of 8ohm loads from a 5V supply.
The MIC_OUT and EAR signals are no longer supported within the software for this interface.