ps 130 single channel speaker station user manual
Contents
1. POWER SUPPLY 21 22 Line Impedances Mains Earth ee ree amp 6 Wallbox Di ONLY ONE EARTHING POINT Individual intercom line shield not to be connected with overall shielding Overall shield of multipair cable and or metal cable trunk EARTHING CONCEPT ASL INTERCOM PAGE 9 User Manual PS 130 Issue 2011 ASL Intercom BV2. 9 HEADSET connector An XLR 4 connector for the connection of a local headset when private conversation is desired The headset must have a can with an impedance of 200 ohms minimum or have two cans parallel each 400 ohms minimum The headset microphone may be of the dynamic or electret type XLR 4 pin assignments 1 Shield mic GND pin 2 mic 3 phones 4 phones When connecting a headset the speaker and gooseneck microphone are disabled automatically 10 LOUDSPEAKER A high quality loudspeaker driven by a 2 9 Watt amplifier PAGE 5 User Manual PS 130 Issue 2011 ASL Intercom BV 11 LINE connectors These connectors are for connecting the PS 130 to the intercom system XLR 3 pin assignments 1 V ground shield 2 30V power wire 3 audio wire The female connector is for input the male connector for extending the intercom line to other stations 6 0 INTERNAL CONTROLS Inside the unit there are two trimmers to adjust the mic gain of the gooseneck microphone and the headset microphone separately The trimmers are located on the PC board The trimmers can be reached as follows e remove the screws of the bottom plate 7 0 WARRANTY e slide the plate to one side and take it out e take away the plastic isolation plate The two trimmers are labeled GOOSE for the gooseneck microphone HEADS for the headset microphone This unit is warrant
3. Issue 2011 ASL Intercom BV 4 0 FRONTPANEL CONTROLS amp CONNECTORS PS 130 Speaker Station 9 10 1 VOLUME control knob This Knob adjusts the listen level for the headset and the loudspeaker 2 TALK button This push button activates the gooseneck or headset microphone The large green LED indicates if the microphone is switched on Momentary switching If the TALK button is pushed and held the microphone signal is sent to the intercom channel until the button is released Latched switching If the TALK button is pushed quickly it is electronically latched and the microphone signal is sent to the intercom channel If pushed again the TALK button switches off Mic Mute when latched on After on the intercom channel a so called MIC Mute signal has been received from a PRO Series master station or separate power supply the connection between microphone and intercom channel is interrupted By pushing the TALK button the connection is restored again 3 CALL button This push button activates the call system By a momentary push a visual call signal is sent to all stations connected to the intercom channel and the call LEDs start flashing By holding the CALL button pushed for 2 seconds the call buzzer is activated provided there is no buzzer mute on the intercom channel After the CALL button is released the LEDs continue to flash for a further
4. 2 seconds 4 SIDE TONE LEVEL trimmer This trimmer is for minimizing the speaker feeding back into the gooseneck microphone unit feedback It also determines the level of your own voice as you hear it in the speaker or headset 5 SIDE TONE HI trimmer This trimmer has the same function as trimmer 5 but solely for the high frequencies Adjustment procedure for both side tone trimmers e set trimmer in start position fully clockwise e switch off the microphones of all connected speaker stations e make sure there is no automatic speaker attenuation turn trimmer 6 fully clockwise push the TALK button slowly turn up the listen volume speak into the gooseneck microphone adjust the speaker listen level to a minimum by turning the side tone trimmers counter clockwise first trimmer 4 and then trimmer 5 repeat this a few times User Manual PS 130 Issue 2011 ASL Intercom BV PS 130 Speaker Station 10 e Connect a headset to the PS 130 the speaker and gooseneck mic are now automatically disabled and speak into the headset microphone Check whether the level of your voice in the headset can s 15 sufficient If not push up the listen level a bit by turning side tone trimmer 4 clockwise The trimmers operating area is between fully clockwise and minimum level Adjusting the side tone does not affect the level of your voice as it is heard by other stations 6 SPEAKER ATTENUATOR trimmer This tri
5. mA quiescent 70 mA signaling 190 mA at max output signaling PS 130 Dimensions amp Weight Width 230 mm Height 88 mm Depth 42 48 mm sloping Weight 1 1 Kg ASL reserves the right to alter specifications without prior notice User Manual PS 130 Issue 2011 ASL Intercom BV 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 consist 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 a signal voltage 15 developed which can be further amplified and sent to headphones or loudspeakers 10 0 CABLING This principle has three advantages the use of a single audio line allows several Stations to talk and listen simultaneously 2 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 audio 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 is sensed by each station and interpreted as a Call signal Th
6. switching increases reliability and allows for microphone ON switching latching or momentary remote Mic Mute facility automatic speaker attenuation adjustable when the microphone is activated The shipping carton contains the parts below 130 User manual If any are missing contact your dealer ASL has taken great care to ensure this product reaches you in flawless condition After unpacking the unit please inspect for any 3 0 INSTALLATION physical damage to the unit and retain the shipping carton and relevant packing materials for use should the unit need returning lf any damage has occurred please notify your dealer immediately so that a written claim can be initiated Please also refer to the warranty section of this manual Connecting the PS 130 to an intercom system is straightforward Connect the intercom line the party line to the LINE connector on the side panel of the PS 130 There are no separate power connections or batteries to install as the necessary DC voltages are derived from a master station or a separate power supply via the intercom connection cable Use professional flexible microphone cable with 2 wires and 1 shield only The PS 130 is fully protected against wiring mistakes reverse power or short circuit in the interconnecting cables A special kit is available for mounting the PS 130 ina 19 rack taking 2U of rack space User Manual PS 130
7. ANALOG INTERCOM PS 130 SINGLE CHANNEL SPEAKER STATION PS 130 Speaker Station CLL 4444441111111111 44444441111111 LIVIN os USER MANUAL Issue 2011 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 10 20 UNPACKING 30 INSTALLA 4 0 FRONTPANEL CONTROLS amp CONNECTORS 6 0 INTERNAL CON ROLS ces icc ccc ec TO WARRANTY 8 0 TECHNICAL SPECIFICATIONS ccsscscsssssecssssseccsnssccsnnseccsnsssscsnsssssnesescsneees 9 0 PARTY LINE TECHNICAL 100 CABLING srcane EE REE EEEE EEEE 11 0 PS 130 BLOCK 120 SYSTEM CGONFIGURATION ssar 130 EARTHING CONCEP ea EEEn ESEE PAGE 2 User Manual PS 130 Issue 2011 ASL Intercom BV 1 0 GENERAL DESCRIPTION The PS 130 is a single channel speaker station designed for use in both portable and fixed ASL intercom systems It incorporates a loudspeaker and a gooseneck micropho
8. e 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 DC power is on 2 and 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 ASL intercom system Use high quality cable Use high quality microphone cable shielded two conductor cable minimum 2x 0 30 mm2 In case multi pair cable is used 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 connecior Do not connect this cable screen to the metal housing of ASL units or XLR 3 wall boxes See section Earthing Concept Connect cable trunks connection boxes and overall multi pair cable screens to clean earth Metal cab
9. ed 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 date of shipment to the end user Faults arising from misuse unauthorized modifications or accidents are not 8 0 TECHNICAL SPECIFICATIONS covered by this warranty If the unit is faulty should be sent in it s 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 System Dynamic range 80 1 KHz THD lt 1 Call signal send 2 8 mA Call signal threshold receive 2 4V DC Supply voltage 30V DC 12V to 32V Power interrupt time Mic Mute 0 1 sec Line Impedance 350 1 kHz 2 2 DC Audio level nom 18 dBu max 4 dBu Microphone Pre amps Headset mic impedance 200 Gain 40 60 dB adjustable internally separately for the headset mic and the gooseneck mic Presence filter 6 dB 5 kHz Frequency response 200 Hz 15 kHz 3dB Power to electret mic 9V DC Limiter range gooseneck mic 30 dB Headphone Driver Amp Max output level 14 V rms 200 Max output power 1W rms 400 9 0 PARTY LINE TECHNICAL CONCEPT Speaker Driver Amp Speaker impedance 25 O Max output power 2 9 W rms Side Tone Rejection 0 30 dB adjustable Buzzer Max SPL 85 dBA PS 130 Power Consumption Current at 30V DC 35
10. le 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 connector 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 cables are making a 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 powe
11. mmer adjusts the extent to which the speaker is automatically dimmed when the gooseneck microphone is switched on prevents unit feedback if side tone rejection is not sufficient It also minimizes system feedback or a hollow sound when the gooseneck microphones of other speaker stations on the intercom channel are switched as well Adjustment procedure make sure there is no headset connected feed an audio signal into the intercom channel via an AUX input on a master station or a Separate power supply turn up the listen volume activate the gooseneck microphone push the TALK button adjust the desired degree of speaker attenuation turning the trimmer counter clockwise increases the attenuation 5 0 SIDE PANEL CONNECTORS 14444111111111 4444411111111111 444441111111111 NUM rs 7 BUZZER VOLUME trimmer This trimmer adjusts the volume of the internal buzzer which is located behind the front panel The buzzer is activated if the CALL button of the PS 130 is pushed or a CALL button of any other station on the channel to which the PS 130 is connected longer than 2 seconds provided there is no buzzer mute on the channel buzzers are muted by pushing a button on a master station or a separate power supply 8 GOOSENECK MICROPHONE The PS 130 is equipped with an electret noise canceling gooseneck microphone A limiter prevents the microphone preamplifier from clipping when speaking close into the microphone
12. ne and provides full duplex communications The PS 130 RM model has a small built in electret microphone At the front panel are a Volume listen level Control a TALK and CALL button with LED indicators and trimmers for side tone speaker attenuation and buzzer volume The unit is equipped with a limiter for the gooseneck microphone allowing the user to speak close into the microphone without giving rise to overload and distortion Loudspeaker dimming is automatic when the gooseneck microphone is active Private conversation may be carried out via the headset connector with a headset or telephone handset When a headset is connected both the gooseneck microphone and speaker are disabled automatically 2 0 UNPACKING Special attention has been paid to the intelligibility of speech By applying low noise high speed op amps a speech presence filter and a specially developed high power bridged headphone amplifier communication is very comfortable even in environments with high back ground noise level There is a Separate amplifier for the loudspeaker The unique ASL CALL system provides both a flashing red LED and a very characteristic sound signal the buzzer Smooth operation is guaranteed with the CALL button Only a slight touch makes the red LED flash whilst holding the button for two seconds activates the CALL sound signal The volume of this signal the buzzer can be adjusted at the front panel Fully electronic
13. r consumption occurs in other words most user Stations are placed ASL powered units a clean mains outlet Master stations or power supplies should be connected to the mains outlet with a clean earth Other audio equipment may be connected to this 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 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 PS 130 Issue 2011 ASL Intercom BV 11 0 PS 130 BLOCK DIAGRAM HEADSET MIC GAIN U power LINE MIC PREAMP ELECTRONIC BUFFER TALK SWITCH HEADSET MIC BRIDGED AMPLIFIERS LISTEN VOLUME z i es uf d CURRENT SOURCE V A 2 GOOSENECK GAIN AV HEADSET SPEAKERS GOOSENECK AUTOMATICALLY SIDETONE SPEAKER AMP AUTOMATICALLY SWITCHED OFF WHEN HEADSET ADJUSTMENT SWITCHED OFF WHEN GOOSENECK MIC IS PLUGGED IN HEADSET IS PLUGGED IN SPEAKER AMP CALL LED DELAY MULTIVIBRATOR CALL LEDS worm _ RR CALL SWITCH Ww COMPARATOR CURRENT SOURCE gt BUZZER DELAY BUZZER GENERATOR BUZZER VOLUME U ref im 12 0 SYSTEM CONFIGURATION TELEPHONE TELEPHONE LINE CAMERA 1 CAMERA 2 2 CHANNEL INTERCOM NETWORK CONFIGURATION PAGE 8 Oe User Manual PS 130 Issue 2011 ASL Intercom BV 13 0 EARTHING CONCEPT
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