Specification Of Input/Output Connections - Interacoustics Sera Instructions For Use Manual

Specification of input/output connections

Sera ABR/OAE Connector for Probe,
TM
Preamplifier
Pin Description
1 CH1 out
2 CH1 GND
3 DGND
4 GND A / GND Microphone
5 Microphone – input / Analog balanced in
6 Microphone + input / Analog balanced in
7 Power supply +3/+5V
8 CH2 out
9 CH2 GND
10 I2C CLK
11 I2C DATA
12 I2C Interrupt
Data input/output
USB type A-B micro
CRADLE CONNECTOR
MAINS
SERA TM CONNECTOR
Calibration properties
Accuracy
ABRIS
±2 dB for all stimulus types
DPOAE
±1.5 dB for 1000 to 4000Hz and ±3 dB outside range
TEOAE
±2 dB for click stimulus
D-0113323-F – 2020/11
Sera™ - Instructions for Use - US
1
Preamplifier, Probe, Transducer connector
Description
CH1 out
CH1 GND
DGND
GND A / GND Microphone
Microphone – input / Analog balanced in
Microphone + input / Analog balanced in
Power supply +3/+5V
CH2 out
CH2 GND
I2C CLK
I2C DATA
I2C Interrupt
USB port for communication
CONNECTOR
MICRO USB (IN)
MICRO USB 5V/1.6A
1. +5 VDC
2. NC
3. NC
4. NC
5. Ground
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