Adjusting For Cable Length - AMX Modula Instruction Manual

When installing a Modula system containing Cat5 output boards to accept signals from standard boards
(standard video, S-Video, mono audio or stereo audio), you will need to place a Cat5 RX Module (or
AF-10 board) between each destination and the enclosure (FIG. 83).
Modula
Source Device
FIG. 83
Cat5 system setup with RX (module shown)

Adjusting for Cable Length

If the length of the cable between the TX and the Modula input board or between the Modula output
board and the RX does not match the length specified for the factory default setting of <175 ft. (53 m),
an adjustment is required and must be done before the connectors are attached. Use the DIP switch
settings from the table below when making the adjustment.
Line Length Adjustments
Cat5e Cable Length
<175 ft. (53 m)
176 to 400 ft. (54 to 121 m)
401 to 450 ft. (122 to 137 m)
451 to 550 ft. (138 to 167 m)
551 to 650 ft. (168 to 198 m)
651 to 699 ft. (199 to 213 m)
700 to 800 ft. (214 to 243 m)
801 to 900 ft. (244 to 274 m)
901 to 950 ft. (275 to 289 m)
951 to 1000 ft. (290 to 305 m)
Important: Adjustments to compensate for cable length must be done before attaching cables to the
board or module.
Modula Instruction Manual
Cat5 RX Module
Destination Device
Dip Switch "On" (1) and "Off" (0) Setting
(Positions for Toggles 1 - 2 - 3 - 4)
0 - 0 - 0- 0
1 - 0 - 0 - 0
0 - 1 - 0 - 0
1 - 1 - 0 - 0
1 - 0 - 1 - 0
0 - 1 - 1 - 0
1 - 1 - 1 - 0
0 - 0 - 0 - 1
1 - 0 - 0 - 1
1 - 0 - 1 - 1
Cat5 Video and Audio Boards with TXs & RXs
129