User Manual PS 260 [ASL]
Contents
1. DC Side Tone Rejection 0 30 dB adjustable Intercom line Impedance 350 Q 1 kHz 2 2 KQ DC Buzzer Audio level nom 18 dBu max 0 dBu Max SPL 90 dBA 0 1m Switch Mode Power Supply Aux Input Mains voltage 100 240 V AC 50 60 Hz Input Impedance 33 kO Output voltage 30 V DC 5 Nominal Input Level 0 dBu Output power 45 W Max Input Level 22 dBu Headphone Driver Amp BS 217 Dimensions amp Weight Max output level 11 6 Vrms at 200 Q Width 19 483 mm Height 1RU 44 5 mm Max output power 0 7 Wrms at 200 Q Depth 140 mm Weight 1 75 Kg 0 dBu defined as 775 mV rms into open circuit ASL reserves the right to alter specifications without prior notice PAGE 6 User Manual BS 217 August 2013 ASL Intercom BV 8 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 headphones2. or loudspeakers 9 0 CABLING This principle has three advantages e the use of asingle 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 The intercom lines the party lines are of the shielded two conductor microphone cable type The intercom line connectors are of the XLR 3 type Audio and Call signals are on XLR pin 3 DC power is on XLR pin 2 XLR pin 1 is connected to the shield of the cable which functions as the common return 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 overa
3. ANALOG INTERCOM BS 217 DUAL CHANNEL MASTER STATION USER MANUAL August 2013 This product is designed and manufactured by ASL Intercom B V Zonnebaan 42 3542 EG Utrecht The Netherlands Tel 31 0 30 2411901 Fax 31 0 30 2667373 Email info asl inter com Web www asl inter com CONTENT OF THIS USER MANUAL LO SAFEI VINS TRUC TIONS Larven 2 0 GENERAL DESCRIPTION ruunrnnnvevrnvrvernnvrenrnerenrnrerernnerenrnnerernnerernnvrenrnnenen 3 0 MECHANICAL INSTALLATION iii 4 0 MAINS POWER amp SAFETY EARTH hier 5 0 FRONT PANEL CONTROLS amp CONNECTOR eeeeeeeeeeteeeeeeeeeaes 6 0 REAR PANEL CONTROLS amp CONNECTORS ieee eeeeeteeeeeees 7 0 TECHNICAL SPECIFICATIONS ins 8 0 PARTY LINE TECHNICAL CONCEPT cc cceceeeeetteeeeeateeeeeeeaeeeeeeees DOM BING G eei E oc dd tee TOO EART HING CONCEPT ah ASE Rn 11 0 BS 217 BLOCK DIAGRAM sccssiaioscocanyacndeanentessaxteseecicusieudeneedimesediatees 12 0 POSSIBLE SYSTEM CONFIGURATION User Manual BS 217 August 2013 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 4 Hi k Read all safety and operating instructions before you operate the apparatus Retain all safety and operating instructions for future reference Heed all warnings on the apparatus and in the safety and operating instructions and follow all installation and use instr
4. NT not to be connected with overall shielding Overall shield of multipair cable and or metal cable trunk EARTHING CONCEPT ASL INTERCOM 11 0 BS 217 BLOCK DIAGRAM Switched Mode Power Supply Mains Switch Line Intercom impedance Line B impedance Intercom Call Line A 8 ina Talk A Mic Preamp re Mic erp A CALL Detect Gain nn Buzzer AUX Input Buzzer Volume intercom Call Line B Call Ba Cp CALL Detect af pen Block Diagram BS 217 C 2013 ASL Intercom BV Talk Led PAGE 8 User Manual BS 217 August 2013 ASL Intercom BV 12 0 POSSIBLE SYSTEM CONFIGURATION BS 17 1 CHANNEL BELTPACK BS 217 2 CHANNEL MASTER STATION IS 141 SOUND amp LIGHT BEACON CHANNEL SYSTEM CONFIGURATION PAGE 9 User Manual BS 217 August 2013 ASL Intercom BV
5. ain of the headset microphone signal 10 HEADSET connector A XLR 4 connector to connect a headset The can impedance must be minimum 200 ohms The headset microphone may be of the dynamic or electret type Pin assignments Pin 1 shield mic GND Pin 2 mic Pin 3 phones Pin 4 phones User Manual BS 217 August 2013 ASL Intercom BV 6 0 REAR PANEL CONTROLS amp CONNECTORS 11 INTERCOM LINE connectors for 13 FUSE Holder channels A amp B The fuse protects the BS 216 against severe These XLR 3 type connectors are for internal damage in case of malfunction in the connecting remote stations using standard power section microphone cable There are 2 connectors for Before replacing a fuse the mains cord must channel A and 2 connectors for channel B be disconnected from the mains outlet Pin assignments Pin 1 OV ground shield 14 MAINS Inlet Pin 2 30V DC power wire IEC Mains connector Pin 3 audio wire 12 AUX INPUT connector Ground Lift This input is electronically balanced and accepts line level audio signals Pin assignments Pin 1 OV ground Pin 2 signal Pin 3 signal 7 0 TECHNICAL SPECIFICATIONS System Mic Pre amp Dynamic range 80 dB 1kHz THD lt 1 Gain 40 60 dB Frequency response 200 Hz 15 kHz 3 dB Presence filter 6 dB 5 kHz Call signal send 2 8 mA Power to electret mic 9 V DC Call signal threshold receive lt 2 4 V DC Operating voltage 24 32 V
6. ately 5 SIDE TONE trimmers channel A amp B To adjust the level of one s voice as heard in one s headset Adjustment procedure for each channel separately e set the trimmer in start position fully clockwise e switch off the microphones of all connected stations push the TALK button of the channel turn up the volume of the channel speak into the headset microphone adjust the listen level by turning the side tone trimmer of the channel The trimmer operating area is between fully clockwise and minimum level Adjusting the side tone does not affect the level of your voice as heard by other stations JEG 6 TALK buttons LEDs channel A amp B These buttons allow the user to talk to each channel separately or to both channels simultaneously The large green LED s indicate if the talk function is activated 7 CALL buttons LEDs channel A amp B A Call button activates the Call system By a momentary push a Call signal is sent to all stations connected to the referring intercom channel The Call LED on this station and on all to the channel connected stations starts flashing Pushing and holding a Call button for 2 seconds activates the call buzzer in all stations After the CALL button is released the Call LED s continue to flash for a further 2 seconds 8 AUX VOLUME controls A amp B To adjust the level of the Aux input signal to each of the two intercom lines 9 MIC GAIN trimmer To adjust the input g
7. 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 may 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 Please send us a block diagram of the planned network with a list of all user stations and their positions and we are happy to advise you on cabling lay out User Manual BS 217 August 2013 ASL Intercom BV 10 0 EARTHING CONCEPT POWER SUPPLY Z1 Z2 Line Impedances E Mains Earth Wallbox Wallbox XLR 3 ONLY ONE Individual intercom line shield EARTHING POI
8. is colored brown must be connected to the terminal which is marked with the letter L or colored red Safety Earth The green yellow wire of the mains lead must always be connected to the electrical installation safety earth or ground This is essential for personal safety as well as for proper operation of the BS 217 and the other connected stations The green yellow wire is in the BS 217 connected to all exposed metal surfaces Any rack framework into which this unit might be mounted is assumed to be connected to the same grounding circuit User Manual BS 217 August 2013 ASL Intercom BV 5 0 FRONT PANEL CONTROLS amp CONNECTOR 4 ANALOG BS 217 P Side 3 uzze Basic Series vers ES 2 Channel FA um TALK Master Stat ea INTERCOM db 4 7 Power n e Channe A 2 1 POWER ON OFF switch Mains power push button to switch the internal power supply on or off 2 MAINS POWER LED This LED illuminates if line power is supplied by the internal power supply 3a BUZZER VOLUME trimmer To adjust the volume of the buzzer 3b BUZZER This buzzer indicates an incoming or outgoing call It is activated by pushing a CALL button on this station or a CALL button on any other station for longer than two seconds The volume of the buzzer may be adjusted with the buzzer volume control 4 VOLUME knobs for channel A amp B To adjust the listen level for the headset Each channel has to be adjusted separ
9. is designed to be a dual channel master station in an ASL intercom system Master station and remote stations are interconnected by standard microphone cable The built in power supply can safely drive up to 15 Basic Series beltpacks operating at full power The power supply is fully protected against wiring mistakes reverse power short circuit or dangerous thermal condition Should one of these conditions occur the unit shuts down Once the fault condition has been removed the unit resets automatically and power is restored Each channel has a Volume control a TALK and a CALL button with LED indicators With side tone trimmers one adjusts the listen level of one s voice in one s headset 3 0 MECHANICAL INSTALLATION For the BS 217 a vertical rack space of 1RU 1 75 44mm is required It is not necessary to provide rear support by extra bracing or shelving Adequate ventilation must be provided by allowing sufficient space around the sides and rear of the unit to ensure free circulation of air 4 0 MAINS POWER amp SAFETY EARTH Connecting to mains power The BS 217 may be connected to a mains power outlet which provides 100 240 V AC 50 60 Hz and at least 60 watts The outlet should have a clean earth Avoid using mains power outlets which also power dimmer controlled lighting equipment The wires in the mains lead are color coded green yellow Earth safety ground blue Neutral brown Live In ca
10. ll 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 metal 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
11. se the wires in the mains lead do not correspond with the colored markings identifying the terminals in your mains plug proceed as follows e The wire which is colored green yellow must be connected to the terminal in the plug which is marked with the letter E or by the ground symbol or is colored green With a headset connected to the XLR 4 headset connector one can talk and listen to each channel separately or to both channels simultaneously The unique ASL Call system provides both a flashing red LED and a very distinctive sound signal A slight touch of the CALL button makes the call LED flash whilst holding the button for 2 seconds the call sound signal is activated An Aux input connector with Ground Lift switch at the rear panel allows injecting external line level audio signals into the intercom lines Special attention has been paid to the intelligibility of soeech By applying low noise high speed circuitry a speech presence filter and a specially designed headphone amplifier communication is very comfortable even in environments with high background noise levels 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 e he wire which is colored blue must be connected to the terminal which is marked with the letter N or colored black e The wire which
12. sert the plug fully into the outlet try reversing the plug If the plug still fails to fit contact an electrician to replace the obsolete outlet A grounding type plug has two blades and a third grounding prong The wide blade or the third prong are provided for your safety If the provided plug does not fit into your outlet consult an electrician to replace the obsolete outlet Route power supply cords so that they are not likely to be walked on or pinched by items placed upon or against them Pay particular attention to cords at plugs convenience receptacles and the point where they exit from the apparatus Do not overload wall outlets or extension cords as this can result in a risk of fire or electrical shock Unplug this apparatus during lightning storms or when unused for long periods of time Never insert objects of any kind into the apparatus through openings as the objects may touch dangerous voltage points or short out parts This could cause fire or electrical shock Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as when the power supply cord or plug is damaged liquid has been spilled or 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 BS 217 August 2013 ASL Intercom BV 2 0 GENERAL DESCRIPTION The BS 217 19 1RU
13. uctions Follow all installation operating and use instructions Unplug the apparatus from the AC power outlet before cleaning Use only a damp cloth for cleaning the exterior of the apparatus Do not use accessories or attachments not recommended by the manufacturer as they may cause hazards and void the warranty Do not operate this apparatus in high humidity areas or expose it to water or moisture Do not place the apparatus on an unstable cart stand tripod bracket or table The apparatus may fall causing serious personal injury and damage to the apparatus Do not block or cover any openings in the apparatus These are provided for ventilation and protection from overheating Never place the apparatus near any heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat Do not place the apparatus in an enclosure such as a cabinet without proper ventilation 10 Operate the apparatus using only the type of power source indicated on the marking label Unplug the apparatus power cord by gripping the power plug not the cord PAGE 3 11 12 13 14 15 16 Insert the plug properly Do not defeat the safety purpose of the polarized or grounding type plug An American polarized AC line plug has two blades with one wider than the other This plug will fit only one way into the power outlet This is a safety feature If you are unable to in
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