{"product_id":"qtx-dmx-terminator-120-ohms-3-pin-xlr","title":"QTX DMX Terminator 120 Ohms - 3-Pin XLR","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe QTX DMX terminator is a 3-pin XLR plug with a 120-ohm resistor soldered between pins 2 and 3, designed to terminate the end of a DMX512 lighting control chain. The resistor matches the nominal impedance of DMX cable, absorbing the signal at the end of the run and preventing reflected signals from bouncing back down the chain and causing flickering, data errors or addressing conflicts.\u003c\/p\u003e\n\u003cp\u003eDMX lighting systems operate as a single unidirectional data chain from controller to first fixture, first to second, and so on until the last device in the line. Without a terminator, the signal reaching the end of the chain reflects back along the cable, interfering with the outgoing signal and causing intermittent or erratic fixture behaviour, particularly on longer runs or chains with more than 10-15 fixtures. Adding a terminator to the output socket of the final fixture in the chain stabilises the signal across the entire run.\u003c\/p\u003e\n\u003cp\u003eThe QTX terminator plugs directly into any standard 3-pin female XLR socket. It carries no cable or pass-through connection — it is purely an end-of-chain plug. The metal XLR shell provides shielding and strain relief on the resistor connection. For professional touring rigs, venue installations or theatre lighting setups where cable runs exceed 50m or fixture counts go beyond 15 units, a terminator is essential for reliable signal integrity.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\u003ctr\u003e\n\u003ctd\u003eImpedance\u003c\/td\u003e\n\u003ctd\u003e120 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/table\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhen is a DMX terminator needed?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA terminator is required at the end of any DMX512 chain to prevent signal reflection. It is particularly important on runs longer than 50m, chains with more than 15 fixtures, or setups experiencing flickering or intermittent addressing issues.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit 5-pin XLR systems?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. This terminator uses a 3-pin XLR connector and is designed for 3-pin DMX systems. For 5-pin DMX chains, a separate 5-pin terminator is required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere does the terminator plug in?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe terminator plugs into the DMX output socket of the final fixture in the chain. It does not pass the signal onwards — it is purely an end-of-line plug to absorb the signal.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan one terminator be used across multiple setups?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The terminator can be moved between different DMX chains as needed. It is reusable and does not require calibration or configuration for each setup.\u003c\/p\u003e","brand":"AVSL","offers":[{"title":"Default Title","offer_id":45313331101963,"sku":"177.924UK","price":2.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/177924UK_LD1_a2e1c30a-906a-4182-ab58-a456da8a8e1d.jpg?v=1715191273","url":"https:\/\/niori.co.uk\/products\/qtx-dmx-terminator-120-ohms-3-pin-xlr","provider":"Niori","version":"1.0","type":"link"}