Martin RS-485 Splitter
Contents
1. Martin RS 485 Splitter user manual D o oO oO oO oO wo m z a Thank you for selecting the Martin RS 485 Splitter This optically isolated splitter amplifier allows you to add 4 branches to the data link Optical isola tion of each branch increases link reliability by preventing a failure on one branch from interfering with operation on other branches Amplification of the signal output allows the link to be extended over the maximum length speci fied by the DMX 512 standard In addition each branch of the link may be treated as an independent link with up to 32 fixtures each The RS 485 Splitter may be used equally well with DMX and Martin protocols Several splitter amplifiers may be used on the same link if additional branches are required Installation and use is simple please read the following notes to get the most out of the device Safety Precautions The device is not for domestic use Use the device only as described Do not expose the device to rain or moisture Make sure the device is properly grounded Do not operate the device with the cover removed Unplug the device before servicing Never replace the fuse with one of a higher rating Immediately repair or replace damaged power cords Powering the RS 485 Splitter WARNING For safe operation the device must be grounded earthed Check voltage setting The RS 458 Splitter may be switched between 115 and 230 V Make sure2. it is not used Signal Output Connect up to 4 branches of the data link to the OUT 1 OUT 4 jacks using 3 pin XLR male connectors Each branch can have up to 32 fixtures connected and must be terminated Unused outputs however do not need to be terminated Servicing the RS 485 Splitter Replace fuse 1 Unplug the splitter 2 Remove 2 screws from each side and lift off the cover 3 Locate the fuse on the circuit board and replace with one of the same rating 4 Replace the cover and screws Note If the fuse blows repeatedly there is a malfunction with the unit that must be referred to a service technician Specifications Dimensions Length sier nein 293 mm 11 5 in ee ae ii AEE era A AE 108 mm 4 25 in Height ea aa a a R aS 49 mm 1 9 in EE a I EE AAT E ogee lens 1 4 kg 3 1 Ib Electrical Power supply settings rrrrrrrnnnnvrrnrnr 115 230 V switch selectable AG frequency neensssssssennnnnnnennannnnnnnnnnnnnnnne nn nnnnnnen nn 50 60 Hz F ssen time delay T 0 125 A 250 V Construction HOUSING EE EE eier A steel Finish en electrostatic powder coating Front Panel Jacks e JO EE 3 pin XLR male TAU Gera eda eier nedetid 3 pin XLR female C OUTPUTS aie RE MEER 4 x 3 pin XLR female Data Link Electrical standard 4 2 2 es EIA 485 Cable type sara a seine shielded twisted pair Gable gauge ie rss trennen 22 or 24 AWG Cable impedance
3. rrrnnnnnnrnnnnnnnnnnnnnnnnnennnnnnnrnnsenerenennrnnseneennn 120 Q e Maximum length per branch 22 AWG u 500 m 1640 ft e Maximum length per branch 24 AWG nasce 300 m 1000 ft Maximum load per branch errnnnnnnnrnnnnnvnrnnennnnnvrnnsnnnrnrene 32 fixtures
4. the switch located on the back is correctly set before applying electricity Install plug The RS 485 Splitter 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 Note The table shows some possible pin identification schemes if the pins are not clearly identified or if you have any doubts about proper installation consult a qualified electrician Possible Markings Wire Pin Typical US UK brown live Al yellow or red brass blue neutral N silver black ground Es yellow green earth L green green The diode on the front panel lights when power is applied If the diode does not light the fuse is probably blown See below Connecting the RS 485 Splitter Input Connect the data link cable from the controller to the IN jack on the RS 485 Splitter using a 3 pin female XLR connector Note though the connections are labelled pin 2 hot and pin 3 cold the splitter works equally well with pin 2 cold and pin 3 hot Signal polarity is maintained pin 2 on the input is wired to pin 2 on the outputs Signal Thru The data link may be continued normally by connecting it to the THRU jack use a 3 pin XLR male connector The signal from the THRU jack is not amplified or optically isolated Insert a termination plug in the THRU jack if
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