PRG DMX Reference Guide 5.4 - Manual (Page 58)

50 DMX512 REFERENCE GUIDE
Male Termination Connector
A male XLR termination connector is required at the last luminaire (or "far end of the line") to
prevent signal reflections. Signal reflections may cancel out the signal at certain line lengths,
resulting in errors. The terminator is also necessary for software downloads and running
tests on multiple luminaires.
To construct your own connector, you will need the following
components:
+ 5-pin, male XLR connector.
+ Two 1/4W 5% 120 ohm resistors.
Loopback Connector
When transferring software versions from luminaire to luminaire, a loopback connector is
required at the first luminaire in the data link.
To construct your own connector, you will need the following components:
+ 5-pin, female XLR connector.
+ Two small segments of 22AWG wire.
Solder resistors across
pins 2 & 3, and 4 & 5
1
2
3
4
5
Solder wires across
pins 2 & 4, and 3 & 5
1
2
3
4
5