User`s manual

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VARI❋LITE® - VL1000™ ERS LUMINAIRE USER’S MANUAL

12 25-Feb-02 02.9663.0001

Data Cables

The luminaire is equipped with two, 5-pin XLR connectors for DATA IN and DATA

THRU (out) applications. DATA IN requires a 5-pin, female XLR connector and

DATA THRU requires a 5-pin, male XLR connector. When purchasing or

constructing data cables, it is important that not only the correct cable type be used,

but also quality cable to ensure a reliable DMX512 system. Your cabling should meet

the following USITT DMX specification requirements:

• Suitable for use with EIA485 (RS485) operation at 250k baud.

• Characteristic impedance 85-150 ohms, nominally 120 ohms.

• Low capacitance.

• Two twisted pairs.

• Foil and braid shielded.

• 24 AWG min. gauge for runs up to 1000 feet (300m).

• 22 AWG min. gauge for runs up to 1640 feet (500m).

Note: Microphone type cables and other general purpose, two-core audio or signal

cables are not suitable for use with DMX512.

Refer to the USITT Recommended Practice for DMX512 guide for additional

information regarding DMX512 systems. How to obtain a copy is detailed in

“Additional Documentation” on page 1.

The XLR 5-pin connectors should be wired as follows:

Pin/Wire Code to XLR Connectors

Data Thru

Cable Pinout

Male Conn

Pin 1

Foil &

Braided

Shield

Pin 2

1st

conductor

of 1st

twisted

pair

Data (-)

Pin 3

2nd

conductor

of 1st

twisted

pair

Data (+)

Pin 4

1st

conductor

of 2nd

twisted

pair

Data (-)

Pin 5

2nd

conductor

of 2nd

twisted

pair

Data (+)

Data In

Cable Pinout

Female Conn