ASL PS 29 M
Contents
1. MAIS 43 4104 Y 3NNIOA Nasi Wuading Y 3OuNOs INRRINO Af YINI Q veudanx vemod n SIN SIN WSI fe veudanx BIN OIA Sd SHOLMS TYO JOUNOs Nau KR IEN sl Y IOUNOS INIHUNO SECH SINOULOAS NO SIN on INOHdOUOI dV SIN KSE Kleer User Manual PS 29 Issue 1 2000 ASL Intercom Utrecht Holland User Manual PS 29 Issue 1 2000 ASL Intercom Utrecht Holland User Manual PS 29 Issue 1 2000 ASL Intercom Utrecht Holland User Manual PS 29 Issue 1 2000 ASL Intercom Utrecht Holland 112. PRO SERIES USER MANUAL FOR THE PS 29 M CONTENTS GENERAL DESCRIPTION UNPACKING INSTALLATION FRONT PANEL CONTROLS REAR PANEL CONNECTORS SIDE PANEL CONTROLS CABLING PARTY LINE TECHNICAL CONCEPT GUARANTEE TECHNICAL SPECIFICATIONS NNN OO BB FW Co User Manual PS 29 M Issue 1 2000 ASL Intercom Utrecht Holland User Manual PS 29 Issue 1 2000 ASL Intercom Utrecht Holland 1 0 GENERAL DESCRIPTION The PS 29 M is a portable dual channel user station It is housed in a strong ABS case and it is provided with a steel beltclip Both channels have independant Volume listen level controls Talk and Call switches Talk and Call LED indicators and Sidetone trimmers Special attention has been paid to the intelligibility of speech By applying low noise high speed opamps a speech presence filter and a specially developed high power bridged headphone amplifier communication is very comfortable even in environments with high background noise level As an option a XLR 6 headset connector can be fitted allowing the user to hear channel A at the left headset can and channel B at the right headset can 2 0 UNPACKING The unique ASL Call system provides both a flashing red LED and a very distinctive and characteristic sound signal Smooth operation is guaranteed with the CALL button A momentary push makes the red LED flash whilst holding the button for two seconds will activate the CALL so
3. d we are happy to advise you on cabling lay out User Manual PS 29 Issue 1 2000 ASL Intercom Utrecht Holland 8 0 PARTY LINE TECHNICAL CONCEPT 9 0 TECHNICAL SPECIFICATIONS PS 29 M ASL s PRO Series offers a complete two way full duplex communications system Users of the system are connected via a party line Master stations with built in power supply beltpacks speaker stations and power supplies are interconnected via standard microphone 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 utilises 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 headphones or loudspeakers This principle has three advantages the use of a single audio line allows several stations to talk and listen simultaneously due to the high bridging impedance offered by each station the number of stations on line has no influence on the level of the communications signal 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 interpre
4. e multipair cable only each pair consisting of two conductors minimum 2x 0 15 mm2 with separate shield Multipair cable should also have an overall shield e Use flexible cables Use flexible single and multipair microphone cable instead of cable with solid cores especially when the cable is subjected to bending during operation or installation e Separate cable screen to XLR pin 1 The screen of each separate microphone cable and or the screen of each single pair in a multipair cable should be connected to pin 1 of each XLR 3 connector Do not connect this cable screen to the metal housing of the connector or to metal wall boxes outlets See page 10 Earthing Concept e Cable trunks connection boxes and overall multipair cable screen to clean earth Metal cable trunks metal connection boxes and overall multipair cable screen should be inter connected and at one point the central earthing point in the intercom network only be connected to a clean earth or a safety earth See page 10 Earthing Concept e Keep metal connection boxes and cable trunks isolated from other metal parts Metal housings for intercom cables and connectors should be mounted in such a way that they are isolated from other metal cable and connector housings and from any other metal construction parts See Party Line Technical Concept e Keep cables parallel as much as possible When two multi channel units in a network are connected b
5. immer E This trimmer adjusts the volume of the internal buzzer 7 a ne 9 The buzzer will be activated if a CALL button is FA volume pressed for longer than 2 seconds and the buzzers are A ine EC EE not muted on the power supply 8 e 10 10 MIC GAIN Bas IS The mic gain can be adjusted by a trimmer To increase mic gain turn clockwise To decrease mic gain turn counterclockwise intercom intercom headset line A line B User Manual PS 29 Issue 1 2000 ASL Intercom Utrecht Holland 5 7 0 CABLING For the PRO Series Intercom system the interconnecting cables are of the shielded two conductor microphone cable type and 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 Since the audio signal is transferred in an unbalanced x way certain rules have to be obeyed when installing the cables of an intercom network This is to avoid earth loops and to minimize power loss and the possible effect of electromagnetic fields These rules are e Use high quality multipair cable For interconnecting user stations power supplies and accessories in an ASL Intercom network use high quality shielded two conductor minimum 2x 0 30 mm2 microphone cable only In case of a multi channel intercom network use high quality microphon
6. nce 350 ohms 1kHz 2 2 Kohms DC intercom line audio level nom 18 dBu max 4 dBu dynamic range 80 dB call send signal 2 8 mA call receive signal threshold 2 4 V DC supply voltage 30 V DC 12 V to 32 V mic mute power interrupt time 0 1 sec Note 0 dBu 775 mV into open circuit ASL reserves the right to alter specifications without further notice User Manual PS 29 Issue 1 2000 ASL Intercom Utrecht Holland S Sg EINEN Sp a AW SUNN JUSUUN20Q ans 62 Sd Wd HOOT KI TIRS SIHON TV ONYTIOH HO3UIN YIOUSNASSUYH DO 909 2 NYW83NNOZ A8 81 ANNOS Cody KEES aazzng aazzna di Si YOLVUINIO KEN aazzng ENEE gaani OO AN AN a LT N g 4 TIOUNOD AnA 4q37Tvo an Sam Wualvuad iOo vaania OO Wo 1 MM I V TIOHNOD vant Awd vannyo an Kette HOUS JWL Saach INOLEIS aay UQATA annn 57 TWannid 11 TRON 8 JAMOA NIIST 30NNOs INRRNO 7 as kg SEI 8 1 O O N BS DTN OELH g Dumg NW OIWWST gemod n th gan SIN ON Sd A c W N 9 geudax KEN 1 Y HOMS JWL L 7 vanyv VINNISNT AY SNOLSAIS 7
7. s wiring reverse power or short circuit in the interconnecting cables User Manual PS 29 Issue 1 2000 ASL Intercom Utrecht Holland wo 4 0 FRONT PANEL CONTROLS 1 VOLUME control knobs These knobs adjust the listen levels for each channel separately You can listen to one channel or to both channels at the same time 2 TALK buttons These buttons allow you to talk to each channel separately or simultaneously The large green led indicates if the talk function is activated Latched switching When a TALK button is pressed quickly the microphone will be switched on and is electronically latched When pressed again the microphone will be switched off Momentary switching When a TALK button is pressed and held the microphone will be active until the button is released When the microphone is latched on it can be muted by a Mic Mute from a PRO Series master station or power supply CALL buttons These buttons activate the call system The Call functions of both channels are independant which means that simultaneous operation is possible A momentary push will send a call signal to all stations connected to the intercom channel and the call LEDS will start flashing Press and hold the button for 2 seconds will activate the call buzzer if not muted After the CALL button is released the LEDS will continue to flash for further 2 seconds 5 0 REAR PANEL CONNECTORS 4 LINE connec
8. ted as a Call signal 10 0 GUARANTEE This unit is warranted by ASL Intercom to the original eng USE UU ci Ayd UETE WU d LI did materials in it s manufacture for a period of one year from date of shipment to the end user Faults arising from misuse unauthorised modifications or accidents are not covered by this warranty If the unit is faulty it 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 THIS PRODUCT WAS DESIGNED DEVELOPED AND MANUFACTURED BY AMPCO SOUND LAB BV MAARSSEN UTRECHT HOLLAND POWER CONSUMPTION current at 30 V DC 30 mA quiescent 45 mA signalling 170 mA at max output signalling MIC PREAMP mic impedance 200 ohms gain 40 dB 70 dB adjustable internally 6 dB at 5 kHz 200 Hz 13 kHz 3 dB presence filter frequency response V electret mic 9 V DC HEADPHONES DRIVER AMP max load 200 ohms max output level normal 14 V rms 200 ohms binaural 8 V rms 400 ohms normal 0 5 W rms each can binaural 0 16 W rms each can max output power INTERCOM LINE DRIVER max output current 3 mA rms output impedance gt 150 Kohms SIDETONE rejection 0 30dB adjustable BUZZER max SPL 101 dBA DIMENSIONS AND WEIGHT width 90 mm height 38 mm depth 124 mm weight 325 g GENERAL SYSTEM SPECIFICATIONS intercom line impeda
9. tor channel B 5 LINE connector channel A These connectors are for connecting the PS 29 M to the intercom system two separate intercom channels A and B Pin assignments 1 OV ground shield 2 30V power wire 3 audio wire Both connectors are for input 6 HEADSET connector An XLR 4 type connector for the connection of the local headset This must have a can impedance of 200 ohms or greater The mic may be of the dynamic or electret type Pin assignments 1 Shield mic GND 2 mic 8 phones 4 phones Optional Binaural XLR 6 headset connector User Manual PS 29 Issue 1 2000 ASL Intercom Utrecht Holland 6 0 SIDE PANEL CONTROLS 7 SIDETONE trimmer channel A 8 SIDETONE trimmer channel B These trimmers adjust the level of your own voice as you hear it in your headset There is a trimmer for each channel Adjustment procedure set trimmer in start position fully clockwise switch off the microphone of all connected stations switch on the TALK of the channel you want to adjust turn up volume speak into the headset microphone J adjust the listen level by turning the sidetone trimmer The operating area is between fully clockwise and ee minimum level Follow this procedure for both channels Adjusting the sidetone does not affect the level of your A voice as it is heard by other stations N 9 BUZZER VOLUME tr
10. und signal The volume of the sound signal buzzer can be adjusted at the side panel Fully electronic switching increases reliability and allows for soft microphone ON switching latched or momentary remote Mic Mute facility The shipping carton contains the parts below The PS 29M User manual If any are missing contact your dealer ASL has taken great care to ensure this product reaches you in flawless condition 3 0 INSTALLATION 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 occured please notify your dealer imediately so that a written claim can be initiated Please also refer to the guarantee section of this manual This PS 29 M will form part of an existing or new intercom system and connections to it is straightforward There are no separate power connections or batteries to install as the necessary DC voltage are derived from the intercom master station or power supplies via the intercom connections cable To connect the PS 29 M onto the intercom system use professional flexible microphone cable with 2 wires and 1 shield only Connect the system intercom cables into the LINE connector sockets on the rear panel Finally connect the listening headset plug into the HEADSET connector also on the rear panel The PS 29 M is fully protected against mi
11. y more than one cable make sure that these cables are parallel to each other over the whole distance between those units When using multipair cable parallelism is ensured in the best possible way e Avoid closed loops Always avoid that cables are making a loop So called ring intercom should not physically be cabled as a ring All cable routes should have a star configuration with the central earthing point usually close to the power supply position as the center of the star e Keep cables away from electromagnetic sources Keep intercom cables away from high energy cables e g 110 220 380V 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 trunking as energy cables e Place power supply in a central position In order to avoid unacceptable power losses place the power supply as close as possible to where most power consumption occurs or in other words most user stations are placed e Connect ASL power supply to a clean mains outlet The ASL power supply may be connected to the mains power outlet to which other audio equipment is connected Avoid using mains outlets which also power 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 an
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