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J2 (d-sub-15) accessory connector – Ocean Optics S2000 User Manual

Page 106

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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