AMX Modula Instruction Manual page 136

Cat5 Video and Audio Boards with TXs & RXs
ESD Warning: To avoid ESD (Electrostatic Discharge) damage to sensitive components, make sure
you are properly grounded before touching any internal Modula materials. Use an ESD wristband
and cord with an alligator clip attached to a good ground source.
To adjust a Modula Cat5 input board for cable length:
1. Remove the input board (for instructions on removing boards, see Appendix D, "Adding or
Replacing Boards" on page 171).
2. Set toggles for both DIP switches for the input connector being adjusted (a small screwdriver or
paper clip works well) to the correct position according to the "Line Length Adjustments" table on
page 129.
0 = OFF (toward the connector) and 1 = ON (toward the key notch).
FIG. 84
Set toggles on both DIP switches to the same value
3. Repeat Step 2 for each additional pair of DIP switches that need adjusting.
4.
Replace the input board.
5.
Insert the screws and tighten until snug.
Tip: Gain adjustments can also be made on the potentiometers while the board is out of the
enclosure.
130
Key notch
0 = OFF (toward the connector) and 1 = ON (toward the key notch)
Gain Potentiometers
Example shows a setting of "0-1-0-0" for a
cable length of 425 ft. (130 m)
Modula Instruction Manual
page 104