DEVICES AT ANY DISTANCE FROM THE LASER TRANSMITTER. HIGH VOLTAGE The inside of the OTOT-1000 contains no user serviceable parts. There is exposed high voltage inside this unit. Only factory service technicians should open the unit with power applied. FIRE HAZARD The AC line input fuse is contained in the IEC 320 power input connector.
The OTOT-1000 may be installed and operated in any position on a flat surface. The unit has four slots in the bottom plate to accommodate mounting hardware. If mounting requires a wood screw, use #6 or #8 (maximum) pan-head sheet metal screws.
FIGURE 1 - OTOT-870-xx and OTOT-1000-xx MOUNTING DIAGRAM OPTICAL CONNECTORS AND CLEANING The standard optical connector is an SC/APC. In order to use FC/APC connectors, you must order a conversion kit, OTLL-SCFCKIT. The standard optical connector location is on the opposite side from the RF connector. The connector can be moved to the other side by swapping it with a cover plate.
Measure and record the RF input levels. CAUTION: At this frequency range the loss and slope of coax cables is very significant. The best approach is to connect the cable that will go to the OTOT-1000 input directly to the measurement device.
RF input level. The unit will work with levels within ±2dB of this value. The right axis shows the test point reading for optimum modulation. Figure 2 below is for the OTOT-1000-3 and OTOT-1000-6 models.