ps 680 six channel power supply with aux matrix user manual
Contents
1. 9 0 PARTY LINE TECHNICAL CONCEPT User stations in an ASL intercom system are connected via one or several party lines A party line offers two way full duplex communication and consists of standard microphone multi pair cable One wire is used as an audio line one as a power line and the screen of the cable functions as earth return Current drive is used for signal transfer Each station utilizes a current amplifier to amplify the microphone signal and place it on the common audio line where due to the constant line impedance situated in the power supply between XLR pin 3 and 1 a signal voltage is developed which can be further amplified and sent to the headphones or loudspeakers This principle has three advantages e the use of a single audio line allows several stations to talk and listen simultaneously e due to the high bridging impedance offered by each station the number of stations on the party line has no influence on the level of the communications signal e power and audio to the intercom stations use the same cable The Call signal is also sent as a current on the audio line It develops a DC potential over the line impedance which will be sensed by each station and interpreted as a Call signal 10 0 CABLING The intercom line connectors are of the XLR 3 type Audio and Call signals are on pin 3 DC power is on pin 2 and pin 1 is connected to the shield of the cable which functions as the common ret2. as well as fixed applications It incorporates two adjustable auxiliary signal inputs and uses only 1U of 19 rack space The unit is ideal for use in applications where standard microphone cable is available and ease of setup is of paramount importance Inside the unit are 2 switch mode power supply modules which are fully protected and can together drive at least 20 Pro Series beltpacks or 10 Pro Series speaker stations or a combination operating at full power The Auxiliary Matrix On the rear panel of the PS 680 are 2 inputs for external audio signals so called auxiliary or AUX signals Each AUX signal may be injected to each of the 6 intercom channels with for each channel a volume control for each AUX signal With master volume control knobs on the front panel the overall level of each AUX signal to the intercom channels may be adjusted Each AUX input may be switched to either line or mic level When mic level is 3 0 UNPACKING The shipping carton contains the parts listed below e The PS 680 e Mains power cable e Spare fuses If any are missing contact your dealer ASL has taken great care to ensure that this product reaches you in flawless condition 4 0 MECHANICAL INSTALLATION A vertical rack space of 1U 1 75 44 5 mm is required for the PS 680 It is not necessary to provide rear support by extra bracing or shelving Adeguate ventilation must be provided by allowing sufficient space around
3. ANALOG INTERCOM PS 680 SIX CHANNEL POWER SUPPLY WITH AUX MATRIX USER MANUAL Issue 2010 ASL Intercom BV DESIGNED AND MANUFACTURED BY ASL INTERCOM B V ZONNEBAAN 42 3542 EG UTRECHT THE NETHERLANDS PHONE 31 0 30 2411901 FAX 31 0 30 2667373 E MAIL info asl inter com WEB www asl inter com CONTENT OF THIS USER MANUAL 1 0 2 0 3 0 4 0 5 0 7 0 8 0 2 0 10 0 11 0 12 0 13 0 SAFETY INSTRUCTIONS GENERAL DESCRIPTION PS 680 UNPACKING an aero a a baba MECHANICAL INSTALLATION WARRANTY AAA RA PP PA FRONT PANEL GONTROLS escicicnoncinscin dara dins REAR PANEL CONTROLS 8 CONNECTORS PARTY LINE TECHNICAL CABLING ANO o o an EARTHING CONCEPT naine TECHNICAL SPECIFICATIONS PS 680 SYSTEM CONFIGURATION PAGE 2 User Manual PS 680 Issue 2010 ASL Intercom BV 1 0 SAFETY INSTRUCTIONS Please always follow these instructions to help ensure against injury to yourself and or damage to the system 1 Read all safety and operating instructions 11 Insert the plug properly Do not defeat the before you operate the apparatus safety purpose of the polarized or grounding type plug An American polarized AC line 2 Retain all safety and operating instructions plug has two blades with one wider than the for future reference oth
4. EDs There is an overload LED for channel A C and E powered by PSU 1 and an overload LED for channel B D and F powered by PSU 2 An overload LED illuminates if a circuit breaker has shut off the 30V DC line power due to overload A cause for overload can be too many user stations connected or a short circuit in the interconnecting cables The circuit breaker resets automatically 3 seconds after the cause of the overload has been removed restoring the line power During short circuit the overload LED flashes every 3 seconds Every time mains power is switched on the LED is lit for a few seconds 3 POWER LED This LED illuminates if line power is supplied by the internal power supply 4 ALL MICS ON OFF button With this push button all microphones of the connected stations can be muted 5 ALL BUZZERS ON OFF button With this push button all buzzers of the connected stations can be muted 6 AUX MASTER VOLUME control knobs These knobs adjust the level of each aux input signal to the intercom lines 7 AUX MATRIX trimmers These trimmers control the volume of each AUX input signal as sent to each channel A F User Manual PS 680 Issue 2010 ASL Intercom BV 8 0 REAR PANEL CONTROLS amp CONNECTORS 9 Input Level Input Level N m dom Aux Input li gt Intercom Lines Serial Number 4 DANGEROUS VOLTAGE INSID Type Remote Mute Control Aux Outputs 8 LINE connectors A F These XLR 3 connec
5. ay be connected to this mains outlet but avoid using an outlet which also powers dimmer controlled lighting systems In case of more complex installations don t hesitate to contact us for advice User Manual PS 680 Issue 2010 ASL Intercom BV 11 0 EARTHING CONCEPT POWER SUPPLY Z1 Z2 Line impedances Mains Earth Wallbox Ly ae Wallbox XLR 3 LT LT 3 3 3 4 4 MET ONLY ONE EARTHING POINT ani Individual intercom line shield Se ES not to be connected C TU with overall shielding T E Overall shield of multipair cable 7 and or metal cable trunk EARTHING CONCEPT ASL INTERCOM 12 0 TECHNICAL SPECIFICATIONS PS 680 System Aux Inputs dynamic range 80 dB 1 kHz THD lt 1 Input impedance call signal send 2 8 mA 30 balanced line level call signal threshold receive 2 4V DC 4 6 kO balanced mic level supply voltage 30 V DC 12 V to 32 V nominal input level power interrupt time mic mute 0 1 sec 18 dBu to 6 dBu line level 38 dBu to 14 dBu mic level Intercom Line max input level line impedance 350 Q 1kHz 2 2 DC 422 dBu line level audio level nom 18 dBu max 4 dBu 42 dBu mic level phan
6. ble The apparatus may fall causing serious personal 14 Unplug this apparatus during lightning storms injury and damage to the apparatus or when unused for long periods of time 9 Do not block or cover any openings in the 15 Never insert objects of any kind into the apparatus These are provided for ventilation apparatus through openings as the objects and protection from overheating Never place may touch dangerous voltage points or short the apparatus near any heat sources such as out parts This could cause fire or electrical radiators heat registers stoves or other shock apparatus including amplifiers that produce heat Do not place the apparatus in an 16 Refer all servicing to qualified service enclosure such as a cabinet without proper personnel Servicing is required when the ventilation apparatus has been damaged in any way such as when the power supply cord or plug 10 Operate the apparatus using only the type of is damaged liquid has been spilled or power source indicated on the marking label Unplug the apparatus power cord by gripping the power plug not the cord PAGE 3 objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped User Manual PS 680 Issue 2010 ASL Intercom BV 2 0 GENERAL DESCRIPTION PS 680 The PS 680 is designed to be a six channel power supply in an ASL intercom system and can be used in portable
7. er This plug will fit only one way into the power outlet This is a safety feature If you 3 Heed all warnings on the apparatus and in are unable to insert the plug fully into the the safety and operating instructions and outlet try reversing the plug If the plug still follow all installation and use instructions fails to fit contact an electrician to replace the obsolete outlet A grounding type plug 4 Follow all installation operating and use has two blades and a third grounding prong instructions The wide blade or the third prong are provided for your safety If the provided plug 5 Unplug the apparatus from the AC power does not fit into your outlet consult an outlet before cleaning Use only a damp cloth electrician to replace the obsolete outlet for cleaning the exterior of the apparatus 12 Route power supply cords so that they are 6 Do not use accessories or attachments not not likely to be walked on or pinched by recommended by the manufacturer as they items placed upon or against them Pay may cause hazards and void the warranty particular attention to cords at plugs convenience receptacles and the point 7 Do not operate this apparatus in high where they exit from the apparatus humidity areas or expose it to water or moisture 13 Do not overload wall outlets or extension cords as this can result in a risk of fire or 8 Do not place the apparatus on an unstable electrical shock cart stand tripod bracket or ta
8. is switch box Mic or Buzzer mute signals can be sent to all channels simultaneously OR to each channel separately To activate a mic of buzzer mute the switch box connects the required pins of the D 25 connector to ground See D 25 pin layout below The external switch box is made to order Specific requirements of the user as far as for instance type of switches can be fulfilled On the D 25 connector are also available the unbalanced AUX signals on pin 2 and 3 It concerns the pre amplified signals taken after the AUX master volume controls 6 before they are sent to the Aux matrix Use high impedance loads only minimum 20 kQ lower loads may disrupt the AUX signals to the intercom lines Pin layout of the D 25 connector Ground OV Unbalanced AUX signal 2 Unbalanced AUX signal 1 430V DC max load 1A 430V DC max load 1A 9V DC max load 50 mA Mic mute all channels Mic mute channel F Mic mute channel E 10 Mic mute channel D 11 Mic mute channel C 12 Mic mute channel B 13 Mic mute channel A 14 Ground 0V 15 Ground 0V 16 Ground 0V 17 18 19 Buzzer mute all channels 20 Buzzer mute channel A 21 Buzzer mute channel B 22 Buzzer mute channel C 23 Buzzer mute channel D 24 Buzzer mute channel E 25 Buzzer mute channel F Please note that the 9V DC supply is NOT short circuit protected User Manual PS 680 Issue 2010 ASL Intercom BV
9. l connection boxes and_cable trunks or pipes isolated from other metal parts Metal trunks or pipes for intercom cables and metal connection boxes should be mounted in such a way that they are isolated from any other metal housing or construction part Keep cables parallel as much as possible When two multi channel units in a network are connected by more than one cable make sure that these cables are parallel to each other over the whole distance between those units When using multi pair cable parallelism is ensured in the best possible way Avoid closed loops Always avoid that intercom cables are making a closed loop So called ring intercom should not physically be cabled as a ring Keep cables away from electromagnetic sources Keep intercom cables away from high energy cables e g 115 230 400V mains power or dimmer controlled feeds for spotlights Intercom cables should cross high energy cables at an angle of 90 only Intercom cables should never be in the same trunks as energy cables Place power supply in a central position In case of a system powered by a separate power supply In order to diminish power losses place the power supply as close as possible to where most power consumption occurs in other words most user stations are placed ASL powered units to a clean mains outlet Master stations or power supplies should be connected to a mains outlet with a clean earth Other audio equipment m
10. the sides and rear of the unit to ensure free circulation of air 5 0 WARRANTY This unit is warranted by ASL Intercom to the original end user purchaser against defects in workmanship and materials in its manufacture for a period of one year from the date of shipment to the end user selected 30V phantom power is available at the referring AUX input connector Fully electronic switching increases reliability and allows fora Mic Mute and Buzzer Mute function e By pushing the All Mics Off button on the front panel the microphones of the stations connected to the PS 680 are muted At each user station the microphone may be switched again by pushing a TALK button e By pushing the All buzzers Off button on the front panel all buzzers of the stations connected to the PS 680 are muted To abolish the all buzzers off status of all these stations this button has to be pushed again Remote Mute Control The Mic Mute and Buzzer Mute push buttons on the front panel of the PS 680 allow for sending these mute signals to all channels simultaneously In case it is required that these signals can also be sent to each channel separately an external switch box is needed which can be connected to a D 25 connector on the rear panel After unpacking the unit please inspect for any physical damage to the unit and retain the shipping carton and relevant packing materials for use should the unit need returning If any damage has occ
11. tom power 30 V DC mic level selected Switch Mode Power Supplies mains voltage range 90 240 V AC 50 60Hz Dimensions amp Weight DC output voltage 30V DC 5 Width 19 483mm ripple and noise lt 11 mV rms Height 1U 44 5mm max output power 2x 45 watt Depth 250mm circuit breaker delay time 0 2 sec Weight 2 Kg automatic reset time 3 0 sec 0 dBu defined as 775 mV into open circuit ASL reserves the right to alter specifications without prior notice PAGE 8 User Manual PS 680 Issue 2010 O ASL Intercom BV 13 0 SYSTEM CONFIGURATION 6 CHANNEL INTERCOM NETWORK PRO SERIES PAGE 9 User Manual PS 680 Issue 2010 O ASL Intercom BV
12. tors are for connecting the 8 intercom party lines standard microphone cable Pin assignments pin 1 OV ground shield pin 2 30V power wire pin 3 audio wire 9 AUX INPUT connectors These two XLR 3 Aux inputs are electronically balanced and accept audio levels between 18dBu to 22dBu on line level and 38dBu to 2dBu on mic level Pin assignments pin 1 OV ground pin 2 signal pin 3 signal 10 MIC LINE switches With these switches Line level or Mic level for each AUX input can be selected When mic level is selected a 30V DC phantom power is supplied to pins 2 and 3 of the AUX input connector 11 MIC GAIN trimmers These trimmers adjust the sensitivity of the AUX input when mic level is selected 12 FUSE holder The fuse protects the PS 680 against severe internal damage in case of malfunction of the internal power supplies Before replacing the fuse the mains cord must be removed The fuse has to be T 1250 mA for all mains voltages 100 240V AC 13 MAINS inlet IEC Mains connector For correct wiring see section 6 0 14 REMOTE MUTE CONTROL AUX OUTPUTS connector The Mic Mute and Buzzer Mute push buttons on the front panel of the PS 680 allow for sending these mute signals to all channels simultaneously In case it is required that these mute signals can also be sent to each channel separately an external switch box is needed which may be connected to this D25 connector Using th
13. urn for audio and power The audio signal is transferred in an unbalanced way see Party Line Technical Concept To avoid earth loops hum the possible effect of electromagnetic fields and to minimize power loss certain rules have to be obeyed when installing the cabling of an intercom system Use high quality cable Use high quality microphone cable shielded two conductor cable minimum 2x 0 30 mm2 In case multi pair microphone cable is used it should be of high quality and each pair should consist of two conductors minimum 2x 0 15 mm2 with separate shield and an overall shield Use flexible cable Use flexible single and multi pair microphone cable instead of cable with solid cores especially when the cable is subjected to bending during operation or installation Cable screens to XLR pin 1 The screen of each separate microphone cable and or the screen of each single pair in a multi pair cable should be connected to pin 1 of each XLR 3 connector Do not connect these screens to the metal housing of ASL unitst or XLR 3 wall boxes See section Earthing Concept Connect metal cable trunks wall boxes and overall multi pair cable screens to clean earth Metal cable trunks metal wall boxes and overall multi pair cable screens should be interconnected and at the central earth point in the intercom network only be connected to a clean earth or a safety earth see section Earthing Concept Keep meta
14. urred please notify your dealer immediately so that a written claim can be initiated Please also refer to the warranty section of this manual Forced cooling is not required The power supply regulator is mounted on the rear of the unit After a period of time it will feel hot to the touch This is quite normal and should be no cause for alarm Faults arising from misuse unauthorized modifications or accidents are not covered by this warranty If the unit is faulty it should be sent in its original packing to the supplier or your local ASL dealer with shipping prepaid A note must be included stating the faults found and a copy of the original suppliers invoice User Manual PS 680 Issue 2010 ASL Intercom BV 6 0 MAINS POWER WARNING This appliance must be earthed The PS 680 may be connected to a mains power outlet of 100 240 Volts 50 60 Hz 150 watts The outlet should have a clean earth Avoid using mains outlets which also power dimmer controlled lighting equipment Fuse type for all voltages T 1250 The wires in the mains lead are color coded in accordance with the following code Green and yellow Earth safety ground Blue Neutral Brown Live In case the colors of the wires in the mains lead do not correspond with the colored markings identifying the terminals in your plug proceed as follows e The wire which is colored green and yellow must be connected to the terminal in the plug
15. which is marked with the letter E or by the earth symbol or colored green e The wire which is colored blue must be connected to the terminal which is marked with the letter N or colored black 7 0 FRONT PANEL CONTROLS e The wire which is colored brown must be connected to the terminal which is marked with the letter L or colored red Safety Earth The green and yellow wire of the mains cord must always be connected to the electrical installation safety earth or ground It is essential for personal safety as well as for proper operation of the PS 680 and the connected user stations This wire is internally connected to all exposed metal surfaces of the PS 680 Any rack framework into which this unit is mounted should be connected to the same grounding circuit Powering Up Procedure e Make sure that the red power switch on the left side of the front panel is OFF e Connect the power cord to the rear of the station e Plug the other end of the power cord into a properly grounded mains outlet e Turn on the power with the red button The red overload LED lights up for about 3 seconds and then extinguishes Now the green power LED is lit indicating the PS 680 is active ChannelA ChannelB ChannelD ChannelE Channel F Qe 00 02 AUX MATRIX AUX INPUTS 1 POWER ON OFF switch Mains power push button for switching ON and OFF the internal power supplies 2 OVERLOAD L
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