Martin DMX Controller 2518 Specifications download pdf (Page 6)

3Installation

section 2

INSTALLATION

The 2518 DMX Controller comes with the following:

• IEC power cable

• 5 meter 3-pin XLR-XLR cable

• Termination plug

• User manual

Connecting the Serial Link

About Serials Links

The 2518 DMX Controller sends instructions to lighting fixtures and other DMX-controlled

devices through a serial link. A cable connects, or “links,” the output of the controller to the

input of the first lighting fixture. The link is continued to additional fixtures by connecting

the output of the fixture closest to the controller to the input of the next fixture.

Connecting outputs to inputs is complicated a little by the fact that the connection sockets

are not always the same. There are 2 differences to be aware of. First, both 3-pin and 5-pin

XLR sockets are common even though only 3 wires are used for DMX control. Second, the

way the socket pins are wired, known as the pin-out, is different for the Martin standard and

the DMX standard. The pin-outs for each standard are shown in Table 1.

RS-232 I/O DMX Output

Rear Panel Connections

AC Input MIDI Input

Pin 1 Pin 2 Pin 3 Pin 4 Pin 5

DMX

shield cold (-) hot (+) - -

Martin

shield hot (+) cold (-) - -

Table 1: Martin and DMX Pin-Outs

2518 IV.BOOK Page 3 Tuesday, September 22, 1998 7:10 PM

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Martin DMX Controller 2518 Specifications Page 6