Di Adapters

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DI adapters index Editorial ............................................... Page 3 Page 9 - NADIT AES/EBU adapters from Neutrik - We provide accurate solutions! Passive adapters....................................... Impedance Transformers AES/EBU.......... Page 4 Video Transformers............................ Page 10 - Professional transformers - Symmetrical and asymmetrical line - DI adapters - Ground loop isolation semi-professional audio Adapters..... More Problem Solvers......................... Page 8 - Semi-professional transformers - Matcher and splitter on FLF mounting plates like us on facebook.com/ContrikAG Page 11 editorial Dear Customer Unfortunately, sources of disturbances in audio systems still manifest nowadays. They are called electromagnetic interferences that may appear as distortion or so-called ground loops. These disturbances can enter a system by galvanic coupling, magnetic and electromagnetic or electrostatic fields. But it doesn‘t have to be that way. We provide accurate solutions! You can‘t protect your system from these influences but you can take precautions to not let these sources of interference disturb the system. Our passive adapters eliminate these unpleasant phenomena due to proper shielding and grounding as well as galvanic isolation between input and output. We also develop customised galvanic insulators for audio and video. Please visit our website or contact us in order for us to support and help you in realising your state-of-the-art projects. We will find a solution that meets your needs. Sincerely, Contrik AG Passive adapters Daily occurring sources of disturbances in audio sys- Groundlift switch screen, Pin 1 on XLRs are operated: tems are electromagnetic interferences which manifest themselves as distortions, humming and radio crosstalk. D = Direct - PIN 1 the screen is connected between These disturbances may enter the system in various input and output ways, e.g. through galvanic coupling or electromagne- F = Floating - PIN 1 the screen is open between input tic, electrostatic and magnetic fields. You cannot isolate and output = galvanic isolation your system from those influences, but you can take S=Shield precautions to not let those sources of interference input and output and is also connected to the adapter enter the system. The passive adapter series eliminates chassis housing of the XLR - PIN 1 the screen is connected between those inconvenient phenomena through proper shielding and grounding as well as galvanic separation of Phantom switch: input and output. If there is phantom power, the phantom power switch interconnects the phantom power through to the PAs. On all NPK* and ZNPK* products, the transformers NTL1, NTM1 or NTM4 are integrated and galvanic iso- Phase-Reverse: lation of audio signals is provided. The NPK series has The phase reverse switch crosses Pin 2 and Pin 3 on additional switches which work as follows: the XLR output, therefore a phase rotation of audio signals of 180° takes place. [ Pa g e 4 ] ZNPKL-NJ3F-3M Adapter Line, suitable for balanced transmission of instrument signals with 600 Ω (ohm) impedance, 1:1, galvanically isolated due to the interior transformer NTL1. symmetrical and asymmetrical Lines ZNPKL-3M-CHS ZNPKL-3F-CHS Symmetrical Adapter Line Balanced transmission adapter line XLR male to (RCA) phono jack, 1:1 transmission for signals with 600 Ω (ohm) impedance, Line up to 6 V, 30 Hz-40 KHz frequency response. The transformed signals are also galvanically isolated through the internal converter NTL1 . Asymmetrical Adapter Line Unbalanced transmission adapter line XLR female to (RCA) phono jack, 1:1 transmission for signals with 600 Ω (ohm) impedance, line up to 6 V, 30 Hz-40 KHz frequency response. The transformed signals are also galvanically isolated through the internal converter NTL1. ZNPKL-3M-2CHS ZNPKL-3F-2CHS Combiner Line Combiner Line mixes the two signals left and right by means of a passive network which are balanced by the NTL1-transformer (galvanic isolation) and terminated by a XLR male output. Suitable for stereo equipment with unbalanced phono outputs (RCA) to connect them to a balanced mono input (XLR female). Splitter Line The splitter distributes the balanced mono output signals of one source to 2x unbalanced phono outputs L + R via NTL1 (galvanic isolation) and a downstream passive network. Especially suited for transmission lines that should remain balanced and be rendered unbalanced just before arriving at the user (recipient). DI A da p t e r s [ Pa g e 5 ] DI Adapters NPKL1 NPKM1 DI-Adapter Line 1 DI-Adapter Line 1 XLR female/XLR male including groundlift switch with three functions (D=direct, S=shell, O=open) for signals with 600 Ω impedance, Line up to 6 V, frequency resp. 30 Hz 40 KHz. DI-Adapter Mic 1 DI-Adapter Mic 1 XLR female/XLR male including groundlift switch with three functions (D-direct, S=shell, O=open) for signals with 200 Ω impedance, Mic. up to 2.5 V, frequency resp. 30 Hz 40 KHz. NPKM2 NPKM3 DI-Adapter Mic 2, Phantom DI-Adapter Mic 2 phantom XLR female/ XLR male including groundlift switch with three functions (D=direct, S=shell, O=open) for signals with 200 Ω impedance, Mic. up to 2.5 V, frequency resp. 30 Hz-40 KHz. Additional switch for 48V phantom power. DI-Adapter Mic 3, Phantom, Phase Reverse DI-Adapter Mic 3, phantom, phase reverse XLR female/XLR male including groundlift switch with three functions (D=direct, S=shell, O=open) for signals with 200 Ω impedance, Mic. up to 2.5 V, frequency response 30 Hz-40 KHz. Additional switch for 48V phantom power, as well a switch for 180° phase conversion. [ Pa g e 6 ] ZNPKL2-3.5-CHS Particularly suited to connect external sources like MP3 Players, CD players etc. to an AUX input (e.g. car radio) without volume loss. (Lengths: phono 30 cm, mini plug 1 m). Ground-loop isolators ZNPKL-3F-3M ZNPKL-CHS-CHS Ground Loop Isolator Line XLR Ground loop isolator Line XLR female to XLR male, 1:1 transmission for signals with 600 Ω (ohm) impedance, Line up to 6 V, frequency 30 Hz-40KHz. Transmission with ground lift 1:1 (NTL1), interferences and ground loops can be avoided. Ground Loop Isolator Line Cinch Ground loop insulator line, phono jack to phono jack, 1:1 transmission for signals with 600 Ω (ohm) impedance, Line up to 6 V, 30 Hz - 40 KHz frequency. Transmission with ground lift 1:1 (NTL1), interferences and ground loops can be avoided. ZNPKL2-CHS-F/M ZNPKL2-3.5-CHS Ground Loop Isolator Line Phono Stereo Ground Loop Isolator Line phono stereo input: 2x phono jack, output: 2x phono plug, 1:1 transmission for signals with 600 Ω (ohm) impedance, stereo line up to 6 V, frequency response of 30 Hz - 40KHz. Transmission with ground lift 1:1 (NTL1), interferences and ground loops can be avoided (Lengths: 30 cm per side). Car Hifi AUX Ground Loop Isolator Line Car Hifi AUX Input 3.5 mm stereo plug, output 2x phono plugs, 1:4 transmitter of a signal with 200 Ω (ohm) impedance, stereo line up to 1.2 V, frequency response 30 Hz - 40 KHz. Signal transmission 1:4 (NTM4) with separated mass, interferences and ground loops can be avoided. Particularly suited to connect external sources. DI A da p t e r s [ Pa g e 7 ] more problem solvers Connection Input volt. Output volt. Connection Input volt. Output volt. XLR (Combo) st. Phono stereo Plug stereo 6.3 mm (Combo) Wago Clamps +4dBu orange +, black -, white GND + 4dBu -10dBV -10dBV +4dBu +4dBu +4dBu XLRM Phono (Recording-Output) +4dBu -10dBV *(Wago-Clamps; orange+, black -, white GND) ZNPKL-SYM-MATCH ZNPKL-SYM-SPLIT This matcher is particularly suitable for 2x FLF external floor sockets as multifunctional stereo audio input. All signals are galvanically isolated via a special audio transmitter and led leveladapted to a joint clamp output. The balanced signals XLR (+4dBu) are transferred 1:1 to the rear side clamp output. The unbalanced signals (-10dBV) phono and 6,3 mm stereo jack (Combo) are transformed 1:4 to the clamp output through the same internal transmitter up to an output level of about +4dBu. The phono inputs are switched in parallel to the combo jack input. Hence an output level of about +4dBu can always be reached, irrespective of whether there is a balanced (+4dBu) or an unbalanced input signal (-10dBV). The mass of the balanced (switch position = up) or the unbalanced (switch position = down) source can be connected through to the output with the front switch. When set in mid-position, the mass is interrupted. Black FLF mounting plate, equipped with one splitter, which is particularly suitable for recording existing balanced stereo transmissions (e.g. interpreter equipment). Galvanic isolation is offered as well as an additional level-adjusted unbalanced RCA output signal. The rear balanced signal (+4dBu) fed on the pressure clamp is splitted into 2 outputs through the internal transmitter (galvanic separation). These connections XLRM (+4dBu, balanced) and RCA (-10dBV, unbalanced) are provided to make the signal available for further signal processing. [ Pa g e 8 ] (Lengths: XLR 30 cm, mini plug 1m) ZNPKL2-3.5-XLRM Unbalanced to balanced stereo converter for e.g. PC soundcards (input: 3.5 mm stereo plug, output: 2x XLR 3p male). 1:1 transmission for signals with 600 Ω (ohm) impedance, stereo line up to 6 V, frequency: 30 Hz–40 KHz. Impedance Transformers Aes/EBU (SPDIF) For long cable runs it is appropriate to use low attenuation coaxial cables instead of twisted pair (STP) cables. Adapters of the Neutrik NADIT series can be used as transformers. They passively transform the characteristic impedance of a balanced 110 Ω (ohm) twisted pair cable to a 75 Ω (ohm) unbalanced coaxial cable and vice versa. NADITBNC-F NADITBNC-M 3-pole XLR female chassis connector 110 Ω (ohm) input to BNC female chassis connector 75 Ω (ohm) output. BNC female chassis connector 75 Ω (ohm) input to 3-pole XLR male chassis connector 110 Ω (ohm) output. NADITBNC-FX NADITBNC-MX 3-pole XLR female cable connector 110 Ω (ohm) input to BNC female chassis connector 75 Ω (ohm) output. BNC female chassis connector 75 Ω (ohm) input to 3-pole XLR male cable connector 110 Ω (ohm) output. NADITBNC-F DI A da p t e r s NADITBNC-M For all NADIT: Frequency range: 0.1 MHz to 6 MHz Max. rated voltage: 5 Vpp VSWR < 1.1 Reflection effect: > 26.4 dB Insertion Loss: < 0.3 dB @ 0.1 MHz bis 10 MHz [ Pa g e 9 ] video transformers NTV1-NAPG-0 NTV2 Video transformer 1:1 in NAPG-0 housing with BNC connectors. Suitable for galvanic isolation, suppression of interferences and to connect different video cables. For 19” panels P12-* and P16-*, 1 RU. Measurements: L x W x H = 70 x 30 x 25 mm, Frequency range min.: 50 Hz, Frequency range max.: 7.5 MHz, Video level: 1 Vpp, Transmission loss: 1dB. Video transformer 1:1 with 75 Ω (ohm) BNC connectors, for galvanic isolation and suppression of interferences of professional video applications. Measurements: L x W x H = 60 x 50 x 30 mm, Frequency range min.: 20 Hz, Frequency range max.: 10 MHz, Video level: 1.5 Vpp, Transmission loss: 1dB. NTV3 Video splitting transformer 1:1 in NA-housing with 75 Ω (ohm) Y/C connectors. Suitable for 19” panels P12-* and P16-*, 1 RU. Measurements: L x W x H = 70 x 30 x 25 mm, Frequency range min.: 50 Hz, Frequency range max.: 7.5 MHz, Video level: 1 Vpp, Transmission loss: 1dB. [ Pa g e 1 0 ] NX-Balun-HD This ground isolator (transformer) serves for potential isolation for HD signals up to 1.485 Gbit/s (DC ISOLATION 1000 V). semi-professional audio Adapters NA2BBNC-D* NA2*-D0B-TX Robust housing of extrusion pressed aluminium, RCA types are colour coded. NA2BBNC-D4B = BNC female connector to phono female, yellow NA2BBNC-D9B = BNC female connector to phono female, white Miniature transformer balancing adapter 1:1, black coded, Impedance ratio: 200:200, Input/output impedance in ohm: 200/2k, (600/10k), Max. input level (@ 50 Hz, 1% THD): -3 dBu NA2M-DOB-TX = 3-pole XLR male to female phono connector NA2F-DOB-TX = 3-pole XLR female to female phono connector NA2*-J-TX NA2*-D2B-TX Miniature transformer balancing adapter 1:1, with 3-pole XLR with ground breaker. Impedance ratio: 200:200, Input/output impedance in ohm: 200/2k, (600/10k) Max. input level (@ 50 Hz, 1% THD): -3 dBu NA2M-J-TX = 3-pole XLR male to plug 6.35 mm NA2F-J-TX = 3-pole XLR female to jack 6.35 mm Miniature transformer balancing adapter 1:1, red coded, Impedance ratio: 200:200, Input/output impedance in ohm: 200/2k, (600/10k) Max. input level (@ 50 Hz, 1% THD): -3 dBu NA2M-D2B-TX = 3-pole XLR male to female phono connector NA2F-D2B-TX = 3-pole XLR female to female phono connector DI A da p t e r s [ Pa g e 11 ] © Contrik AG, Version 1/4.2015