Sensoray 2253 - Manual (Page 10)

Input/output connector
The input/output connector is Hirose DF11-18DP-2DSA(01) (18-pin header). The mating
part is a crimping socket DF11-18DS-2C with DF11-2428SCFA contacts. The
recommended adapter cable length should not exceed 10 inches.
Table 2: Input/output connector pinout
Pin Signal Description
1 MICIN Microphone input
2 MIC-BIAS Microphone bias
3 GND Ground
4 AINR Audio line input, right channel
5 AOUTR Audio line output, right channel
6 GND Ground
7 AINL Audio line input, left channel
8 AOUTL Audio line output, left channel
9 GND Ground
10 GPI-C1 General purpose input C1 (galvanically coupled)
11 GPI-A General purpose input, opto-isolated, anode
12 GPI-C General purpose input, opto-isolated, cathode
13 GPO-C General purpose output, opto-isolated, collector
14 GPO-E General purpose output, opto-isolated, emitter
15 GND Ground
16 CVIN Composite video input
17 GND Ground
18 CVOUT Composite video output
Microphone input
The microphone input is designed to work with condenser microphones. A microphone
bias circuit is provided (2.5 V via a 2.1 KΩ resistor).
Audio line input
Line inputs are designed to work with standard input levels (0.707 V RMS). The input
impedance is 10 KΩ.
Audio line output
Line outputs provide output levels of 0.707 V RMS into a 10 KΩ load.
General purpose inputs/outputs (GPIO)
Note: These GPIOs are not accessible on model 2253P.
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