Ptions – Pathway DMX Manager Plus! #6301, 6302 User Manual

Page 11

DMXManager Plus!

User’s Guide

- 11 - Manual Version 3

Offset and soft patch will be discussed in “Channel Patching”. Select “Quick

patch disabled” and then use

to change to Quick Patch 1 and press √ to

accept. Press ‘Home” twice to return to the Port Status Screen.

Repeat the last three steps for Ports A and B and the Port Status Screen

should look like this:

Although this example simply reversed the port directions from their factory

settings, in practice any port can be the input with the others as the outputs. It
is also possible to have two input and two output ports and, by varying the
channel patch, to use the DMX Manager Plus as a patch bay.

DMX

PTIONS

If “DMX options” is selected from the output menu of any port, the following

screen is displayed:

Speed: The speed option specifies the refresh rate or how often the ‘dimmer’

levels are updated. The maximum DMX refresh rate is about 44 Hertz (Hz),
but some equipment behaves erratically at that rate. The DMX Manager Plus
can operate at four different refresh rates: slow (31 Hz), medium (36Hz), fast
(40 Hz) and maximum (44 Hz). The default is fast.

Termination: The DMX512 protocol requires that the last device on each DMX

line be terminated with an appropriate resistor (usually 120 ohm) to prevent
signal reflection. A port configured as an input (with no pass-thru connection)
on the DMX Manager Plus is effectively the end of that run (the signal is
optically isolated at that point) and so needs to be terminated.

But what about outputs? With the implementation of Remote Device

Management (RDM), all DMX transmitters must also be able to act as

Port

Port C

Patch

Offset patch

Soft patch

Quick patch disabled

Quick 1

Output A

Quick 1

Output B

Quick 1

Output C

Port D

Input

Port

Port A

DMX options

Fast speed

Terminated