Nexo Digital Patching Unit Quick Start Manual Download Page 13

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Power cabling between NXAMP and DPU in a redundant system

Use 4 poles Speakons cables and 8 poles Speakons cables if you use more than 1:1 ratio (backup : normal). Reproduce
the same cabling pattern if you use more than three normal amplifiers.

Back side of the rack

To Speakers

Front side of the rack

Summary of Contents for Digital Patching Unit

Page 1: ...DPU DPU DPU DPU Digital Digital Digital Digital Patching Unit Patching Unit Patching Unit Patching Unit QUICK START v1 2 ...

Page 2: ...ct If you can not locate the appropriate retailer please contact the After Sales department of NEXO SA Parc d Activité du Pré de la Dame Jeanne B P 5 60128 PLAILLY The above statements apply ONLY to those products distributed by NEXO SA or its subsidiaries This applies only to products distributed in the United States of America IMPORTANT SAFETY INSTRUCTIONS 1 Read these instructions 2 Keep these ...

Page 3: ...roduct for a long time make sure to unplug the power cord from the wall AC outlet If this device is to be mounted in an EIA standard rack leave the back of the rack open and make sure that it is at least 10 cm away from walls or surfaces Also if this device is to be mounted with devices that tend to generate heat such as power amplifiers be sure to keep an adequate gap between this device and the ...

Page 4: ...rth symbol or colored GREEN or GREEN and YELLOW The wire which is colored BLUE must be connected to the terminal which is marked with the letter N or colored BLACK The wire which is colored BROWN must be connected to the terminal which is marked with the letter L or colored RED This applies only to products distributed in the United Kingdom COMPLIANCE INFORMATION STATEMENT DECLARATION OF CONFORMIT...

Page 5: ...icate which speaker should be connected on which output When speakON 4 poles connectors should be used the LCD next to it will display the name of the speaker program chosen on the connected NXAMP When speakON 8 poles connectors are in use both LCDs on each side of the connectors will display the name of the connected speakers Back panel description 1 Mains connectors There is two mains connectors...

Page 6: ...U Input A and C and connect the serial port using a crossover cable see serial port cabling bellow 3 3 3 3 Then connect at least one IEC cable to one of the IEC mains inlet of the DPU The left most display should lit and the message Stand by should appear on the screen 4 4 4 4 Connect the NXAMP mains plug s and turn the NXAMP ON Check the LOAD revision while booting up it should be LOAD3_10 or abo...

Page 7: ...tains a copy of all the parameters and preset of the failed amplifier One scene or user preset has to be created for every normal amplifier in a redundant system and saved in the backup amplifier s memory space from 00 to 04 DPU is used in reverse within a redundancy system Meaning that power signals from normal NXAMPs are connected to the front DPU s connectors and outputted to the speakers using...

Page 8: ...t TBD TBD GPOutput 4 Out TBD TBD GPOutput 5 Out TBD TBD GPOutput 6 Out TBD TBD GPOutput 7 Out TBD TBD GPOutput 8 Out TBD TBD When an impulse is detected on GPInput1 Usersetup 00 is recalled When an impulse is detected on GPInput2 Usersetup 01 is recalled When an impulse is detected on GPInput3 Usersetup 02 is recalled When an impulse is detected on GPInput4 Usersetup 03 is recalled When an impulse...

Page 9: ...GPOutput 3 Out TBD TBD GPOutput 4 Out TBD TBD GPOutput 5 Out TBD TBD GPOutput 6 Out TBD TBD GPOutput 7 Out TBD TBD GPOutput 8 Out TBD TBD When signal on GPInput1 is 0 no amplifier has failed and the backup amplifier is still free and ready to take over When signal on GPInput1 is 1 one or more amplifiers have failed all DPUs that are connected to the backup amplifier are frozen One DPU has already ...

Page 10: ...or Null modem cables 6 Then connect the mains to all NXAMPs and DPU using POWERCONs and IEC cables 7 Power on all the NXAMPs and DPUs 8 Then create scenes or user presets in the back up amplifier that contain a copy of each normal amplifier parameters and speaker setup Go to the backup NXAMP menu 4 Save Recall save choose the scenes name example 00 nxamp1 01 nxamp2 and save Memory spaces 00 to 04 ...

Page 11: ...17 18 19 27 26 J6 DConnec r25 1 20 2 21 3 22 4 23 5 24 6 25 7 8 9 10 11 12 13 14 15 16 17 18 19 27 26 D Connec r 25 1 20 2 21 3 22 4 23 5 24 6 25 7 8 9 10 11 12 13 14 15 16 17 18 19 27 26 D Connec r 25 1 20 2 21 3 22 4 23 5 24 6 25 7 8 9 10 11 12 13 14 15 16 17 18 19 27 26 D Connec r 25 1 20 2 21 3 22 4 23 5 24 6 25 7 8 9 10 11 12 13 14 15 16 17 18 19 27 26 D Connec r 25 GND GND GND GND GND GND GN...

Page 12: ... the backup amplifier analog inputs A B and C When saving the normal amplifiers parameters in the backup amplifier user memory space be careful especially for the audio signal patching Normal amplifiers input patch won t always be the same than the one saved in the backup amplifier user preset or scenes You could do exactly the same connections using EtherSound digitals audio inputs E F G and H An...

Page 13: ...se 4 poles Speakons cables and 8 poles Speakons cables if you use more than 1 1 ratio backup normal Reproduce the same cabling pattern if you use more than three normal amplifiers Back side of the rack To Speakers To Speakers To Speakers Front side of the rack ...

Page 14: ...U and NXAMP in a redundant system DB9 null modem or cross cables are used to connect the DPU to their host NXAMP using RS232 connectors The serial link is use to pilot the DPU when needed Back side of the rack Front side of the rack ...

Page 15: ...DPU Digital Patching Unit DPU NXAMP4X1U NXAMP4X1U NXAMP4X1U NXAMP4X1U Powered Digital TD Controller 4x1U Powered Digital TD Controller 4x1U Powered Digital TD Controller 4x1U Powered Digital TD Controller 4x1U 110 110 110 110V V V V NXAMP4X1C NXAMP4X1C NXAMP4X1C NXAMP4X1C Powered Digital TD Controller 4x1C Powered Digital TD Controller 4x1C Powered Digital TD Controller 4x1C Powered Digital TD Con...

Page 16: ...TE When using the DPU with the GPIO firmware the ratio of normal amplifier and backup amplifier is 1 1 WARNING Over voltage on pin 2 may damage your DPU please be sure that your GPIO output does not exceed 20V Internal connections in DPU schematized by double arrow Normal operation Mode Pin 2 5V Backup operation Mode Pin 2 0V Connection between SP4 1 and INPUTC connectors Same between SP4 2 and IN...

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