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Opening the J2, J3 and J4 pins will remove the 75 ohm termination for each color. This setting allows users to connect a cable such as the IN9041 to the input and utilize a local monitor. Please note that if there is no local monitor and the jumper pins are set to this position, there will be unnecessary “blooming” or overdriving of the other four outputs.
The input jumper pins (J8, J10 and J12) must be closed at all times. If any of these jumpers are open there will be no output because the pins are directly connected to the
The IN3268 is very similar in operation and configuration to the IN3264. This unit has the same type of board for the other four outputs, but the jumper pins on the top and the bottom boards of the IN3268 have different configurations.
The bottom board should have all of the jumper pins closed except J2, J3 and J4, which remove the termination and allow the top board to disengage the input. To place the proper 75 ohm termination to the input, J2, J3 and J4 on the top board must be closed as well. The configuration of the top board is a little different because there are only two sets of jumpers per color (see Diagram
DIAGRAM | IN3268 TOP BOARD DEFAULT | |
LED | COIL | |
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J2
J9
J3
J11
J4
J13
H-POT
IN3264 / IN3268 OPERATION MANUAL - REV. 1.3 01/04/01 | ©1999 INLINE, INC. |