Martin Fireplaces 2518 user manual For safe operation, the controller must be grounded earthed

TO BUILD THE SERIAL LINK

1.Use shielded twisted-pair cable. A reliable data connection begins with the right cable. Microphone cable cannot transmit DMX data reliably over long runs. For best results, use only cable designed for RS-485 applications. Your Martin dealer has a range of cables, connectors, and adaptors designed for lighting control.

2.Starting from the controller, connect output to input. Check the pin-out on Martin fixtures and be sure to connect hot to hot and cold to cold.

3.Never use a “Y” connector to split the link. If you need to split the serial link into branches use a dedicated splitter/amplifier such as the Martin 4-ChannelOpto-IsolatedRS-485 Splitter.

4.Don’t overload the link. Placing more than 32 devices on a link can cause unpredictable performance. The control units for the RoboColor IIx and RoboColor III systems, the Martin DMX Switch Pack, and the Martin DMX Interface each count as 1 device.

5.Always terminate the link by installing the provided termination plug in the output socket of the last fixture on the link. The termina- tion plug, which is a male XLR connector with a 120 ohm resistor soldered between pins 2 and 3, “soaks up” the control signal so it cannot reflect back down the link. If a splitter is used, terminate each branch of the link.

CONNECTING THE POWER SUPPLY

For safe operation, the controller must be

grounded (earthed).

TO INSTALL A PLUG

The 2518 DMX Controller is delivered without a plug on the power cord. Following the manufacturer’s instructions, install an approved 3-prong grounding-type plug that fits your supply. Connect the wires to the pins as listed below. If the pins are not clearly identified, or if you have any doubts about proper installation, consult a qual- ified electrician.

Wire	Pin	Marking		Screw color
brown	live		“L”	yellow or brass
blue	neutral		“N”	silver
yellow/green	ground			green

Table 3: Plug Wiring

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