Ocean Optics DH-2000 - Manual (Page 30)

B: Supplementary Information for Models DH-2000-S and DH-2000-FHS
22 000-10000-025-02-1209
DH-2000-FHS (With Filter Holder and TTL Shutter
Control) and DH-2000-BAL
TTL Function Operating Instructions
Automatic Operation
Plug the SUB-D 15-pin TTL connector into the socket on the rear of the DH-2000-FHS.
Manual Operation
Manually set operating mode using the toggle switch on the front of the DH-2000-FHS:
 Open - Shutter open
 Close - Shutter closed
 TTL - Controls shutter with external TTL signal (High = Open, Low = Close)
Operating Instructions – Filter (DH-2000-FHS Only)
► Procedure
1. Open the filter slit by rotating the light beam protection cap.
2. Insert a filter with a maximum size of 1” (round or square) into the filter slit.
3. Close the filter slit by rotating the light beam protection cap until the slit is closed.