J2 (d-sub-15) accessory connector – Ocean Optics S2000 User Manual
Page 106
Appendix D
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J2 Pin
DB-15 (Female)
Description
1
Single Strobe
TTL output signal used to pulse a strobe that is high at the start of each
integration period.
2
Continuous Strobe
TTL output signal used to pulse a strobe that is divided down from Master
Clock signal.
3
V
CC
The positive supply voltage +5VDC.
4
External Hardware
Trigger
TTL trigger signal (rising edge trigger input) used in the External Hardware
Trigger mode.
5
External Synchronization
Trigger
TTL signal used to define the integration time (time between rising edges)
when using the External Synchronization Trigger mode.
6
Channel 7
The analog input for spectrometer slave channel 7.
7
Channel 6
The analog input for spectrometer slave channel 6.
8
D3 or External Software
Trigger
Active high TTL input signal used to trigger the acquisition system in the
External Software Trigger mode. The input from J1-8 is passed unbuffered
to this line.
9
Channel 1
The analog input for spectrometer slave channel 1.
10
GND
Ground (supply voltage return) or case ground.
11
Channel 4
The analog input for spectrometer slave channel 4.
12
Channel 5
The analog input for spectrometer slave channel 5.
13
S0 and S1
TTL inputs used to determine the triggering mode:
S1
S0
Mode
L
X
Normal or Continuous Scan
L
X
External Software Trigger
H
L
External Synchronization Trigger
H
H
External Hardware Trigger
X = does not matter
In the first 2 modes, S0 is also used to enable/disable light sources.
14
Channel 3
The analog input for spectrometer slave channel 3.
15
Channel 2
The analog input for spectrometer slave channel 2.
J2 (D-SUB-15) Accessory Connector