High End Systems SHOWGUN user manual Linking Showgun Fixtures, Cable Connectors

CHAPTER 2

Setup and Configuration

Linking SHOWGUN Fixtures

SHOWGUN® fixtures operate on standard DMX512 link controlled by a DMX console. The number of fixtures on a link will be determined by the combined number of channels required by all the fixtures. A SHOWGUN fixture requires 30 channels on a standard DMX512 link.

Attach the fixture to the link using data-grade cable and 5-pin XLR cable connectors.

Cable Connectors

The SHOWGUN fixture accepts 5-pin XLR cable connectors. Cabling must have a male XLR connector on one end of the cable and a female XLR connector on the other end.

Pin one is the common (cable shield), pin two is the data complement (negative), pin three is the data true (positive). Pins four and five are not used, but they allow a secondary data link to pass through the fixture.

				Grounding lug (inside XLR shell)
					XLR shell
Common
(cable shield)	1		5	positive	positive
								Common
	2	4				5	1
negative				(data true)*	(data true)*
	3					4	2	(cable shield)
(data				negative	negative		3
								negative
complement)				(data complement)*	(data
	positive							(data
					complement)*	positive
								complement)
	(data true)					(data true)

Male XLR Connector Female XLR Connector

*This data line is not used by the fixture, but allows data to pass through the fixture.

Test each cable with a voltage/ohm meter (VOM) to verify correct polarity and to make sure that the negative and positive pins are not grounded or shorted to the shield or to each other.

CAUTION!

Do not connect anything to the ground lug on the XLR connectors. Do not connect or allow contact between the common (cable shield) and the fixture’s chassis ground. Grounding the common could cause a ground loop and/or erratic behavior.

10 SHOWGUN® User Manual