User Manual BS 210
Contents
1. BASIC SERIES USER MANUAL FOR THE BS 216 DUAL CHANNEL MASTER STATION CONTENTS 1 0 GENERAL DESCRIPTION 2 0 UNPACKING 3 0 MECHANICAL INSTALLATION 4 0 MAINS POWER 5 0 FRONT PANEL CONTROLS 6 0 REAR PANEL CONNECTORS 7 0 INTERNAL CONTROLS 8 0 CABLING 9 0 PARTY LINE TECHNICAL CONCEPT 10 0 GUARANTEE 11 0 TECHNICAL SPECIFICATIONS User Manual BS 216 Issue 1 1998 ASL Intercom Utrecht Holland 1 0 GENERAL DESCRIPTION The BS 216 is designed to be a master unit in an ASL intercom system and can be used in portable as well as fixed applications It incorporates a dual channel intercom line power supply with aux input a dual channel headset station and uses only 1U of 19 rack space This makes the BS 216 very versatile and ideal for use in applications where standard microphone cable is available and ease of setup is of paramount importance Each channel has a Volume listen level control a Talk and a Call button with LED indicators and a sidetone trimmer The intercom line power supply is fully protected and can drive at least 10 beltpacks operating at full power The power supply is completely separated from all other functions and in case of power failure the unit can accept line power from an external ASL power supply 2 0 UNPACKING The shipping carton contains the parts listed below The BS 2162. Si ANNOS WOOXYSLNI Iw ONIHLYVA yun lqeo 10 pue gjqeo PISIUS E1340 1181810 UNA p 15 uuoo jou Dias Sul TT Cl CT ae LNIOd ONIHLYVS JNO ji X XOQIIEAA ED LIN LIN SUIEN ZZ LZ AOE soouepaduy eur ZZ LZ YIMOd XOQIISAA User Manual BS 216 Issue 1 1998 ASL Intercom Utrecht Holland yo eus pq 9 AI A quunN
3. zis 9L2T S4 WY49V1Q 32014 ISNI SNIVW goe G HA33S34 SLHOW TIY e SE E TAINNYH 30 2 Nid HIOUYINISSAVYW NYVAJNNOZ 4101 WEN kd 0 41 ANNOS OOdWV KAN NOLD3S i 437204 WIMOd o en E i di DEE VAVIAQ azna HU olany 9977198 AWMIOA 337708 301V3Vd4W0 8 DANOS ININIM 8 HLIMS TI NN N n Aviad T Bee mm d G an ranny SE olany Y AOLVAYAWO y DANOS 1N3330 Y IDIIMS TIY NN N YTIONINO Wq EI yarn qn Yanmin 4 1N3WISmI V angas 09 WNW ice 20 IWNIOA 4 HOLIMS WIWL Ee a 4 IWMIOA NILS BEES a 493319 ain ege HD O Y 1N3WISnrqv INOLIAIS Yan yiv IWNIOA v xnv pain L UU JIW WU HMOd Y3WQTOA Wien V DNYGIdWI ANN Y 334408 EN VE uid vm User Manual BS 216 Issue 1 1998 ASL Intercom Utrecht Holland NOILVUNOIINOO NALSAS THNNVHO 190 SI ST sg NOOYdd LHOTI 9 ANNOS OFT SI NOILVILS YALSVIN TANNWHD 6 913 59 AOVdLTAd TINNWHO 91 589 914 Sd ST Sq ST Sq User Manual BS 216 Issue 1 1998 ASL Intercom Utrecht Holland 10 User Manual BS 216 Issue 1 1998 ASL Intercom Utrecht Holland 11
4. Power cable Spare fuses User manual If any are missing contact your dealer With the BS 216 will be a small packet of spare fuses Please keep them in a safe place There is also one spare fuse included in the mains inlet 3 0 MECHANICAL INSTALLATION A vertical rack space of 1U 1 75 44mm is required for the BS 216 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 Forced cooling is not required The power supply is located on the left rear of the unit and after a period of time it will feel hot to the touch This is quite normal and should be no cause for alarm For each channel separately the intercom line impedance circuitry is installed An AUX input at the rear panel allows injecting external audio signals of line or mic level into the intercom lines When mic level is selected 30V phantom power is available at the Aux input connector Special attention has been paid to the intelligibility of speech 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 level The unique ASL CALL system provides both a flashing red LED and a very distinctive and characteristic sound signal Only a slight touc
5. 30 V 5 DC lt 11 mV rms 1 8 A continuous 2 31 A peak 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 DG HEADPHONES DRIVER AMP max load 200 ohms max output level max output power 8 V rms 200 ohms 0 16 W rms each can SIDETONE rejection 0 30 dB adjustable BUZZER max SPL 100 dBA AUX INPUT Input impedance 30 Kohms balanced line level 4 6 Kohms balanced mic level 18 dBu to 6dBu line level 38 dBu to 14 dBu mic level 22 dBu line level 2 dBu mic level 30V DC mic level selected TT Nominal input level TT max input level Phantom power DIMENSIONS AND WEIGHT width 19 483 mm height 1U 44 5 mm depth 124 mm weight 1 85 Kg GENERAL SYSTEM SPECIFICATIONS intercom line impedance 350 ohms 1 2 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 80 V DC 12 V to 32 V Note 0 dBu 775 mV into open circuit ASL reserves the right to alter specifications without further notice User Manual BS 216 Issue 1 1998 ASL Intercom Utrecht Holland Jo 1 sus P66L SC 18QUSAON 8 Jeun 1uatunooq SLHOIN GNVT1OH HSOIQUESSIEEW DD 909 Zy ueeq uuoz
6. refer to section 4 0 There are two connectors for channel A and two connectors for channel B WARNING Pin assignments FA 1 O V ground shield Before you plug in the mains voltage check if 2 30 V power wire The fuse is correct 3 audio wire 11 AUX INPUT connector This XLR 3 type aux input is electronically balanced and accepts audio levels between 16dBu to 22dBu on line leve and 38dBu to 2dBu on mic level Pin assignments 1 OV ground 2 Signal 3 Signal When mic level is selected a 30V DC phantom power is supplied to pins 2 and 3 The mic gain can be adjusted with the trimmer 12 FUSE This fuse protects the BS 216 against severe internal damage in case of malfunction in the power section To remove the fuse the mains cord must be removed It is most important to place the correct fuse in the holder mains voltage fuse 100 240 VAC T 1250 mA Spare fuses will be found in the small packet supplied with the unit 7 0 INTERNAL CONTROLS MIC GAIN The mic gain can be adjusted internally by a trimmer located on the pcb near to the headset connections 8 0 CABLING User Manual BS 216 Issue 1 1998 ASL Intercom Utrecht Holland 5 For the BASIC 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 X
7. LR 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 way certain rules have to be obeyed when installing the cables of an intercom network This in order to avoid earth loops and to minimize power loss and the possible effect of electromagnetical fields These rules are 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 two channel intercom network use high quality microphone 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 Separate cable screen to XLR 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 for Earthing Concept e Cable trunks connection boxes and overall multipair cable screen to clean earth Meta
8. TALK A amp B buttons These buttons allow you to talk to each channel separately or simultaneously The large green LED indicates if the talk function is activated CALL A amp B buttons These push buttons activate the CALL system A momentary push will send a CALL signal to all stations connected to that intercom channel and the CALL LEDS will start flashing Press and hold the buttons for 2 seconds will activate the call buzzer After the CALL button is released the LEDS will continue to flash for a further 2 seconds AUX VOLUME controls These knobs adjust the level of the Aux input signal to each of the two intercom lines HEADSET connector A 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 3 phones 4 phones GND User Manual BS 216 Issue 1 1998 ASL Intercom Utrecht Holland 60 REAR PANEL CONTROLS amp CONNECTORS Input Level 29 i AC Input voltage ine Fower 2 when ba 90 240V o JIN WARNING THIS UNIT MUST BE EARTHED GE sah r A HIGH VOLTAGE INSIDE 1 DISCONNECT MAINS INPUT BEFORE REMOVING COVER use Aux Input T 1250 mA 10 A amp B line connectors 13 MAINS INLET These XLR 3 type connectors are for connecting the IEC Mains connector For correct wiring and operation remote stations via standard microphone cable
9. e in the same trunking with 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 a 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 and we are happy to advise you on cabling lay out User Manual BS 216 Issue 1 1998 ASL Intercom Utrecht Holland 90 PARTY LINE TECHNICAL CONCEPT 11 0 TECHNICAL SPECIFICATIONS BS 216 ASL s BASIC 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 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 impeda
10. h of the CALL button will make the LED flash whilst holding the button for two seconds will activate the call sound signal ASL has taken great care to ensure that this product reaches you in flawless condition 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 immediately so that a written claim can be initiated Please also refer to the guarantee section of this manual User Manual BS 216 Issue 1 1998 ASL Intercom Utrecht Holland _ Blank Page User Manual BS 216 Issue 1 1998 ASL Intercom Utrecht Holland 40 MAINS POWER The BS 216 may be connected to the mains power outlet to which other audio equipment is connected The outlet should have a clean earth Avoid using mains power outlets which also power dimmer controlled lighting equipment The used AC power source can be anything from 100 240 V AC 50 60 Hz There is no need to adjust the unit to the used mains voltage The power cord supplied with this unit carries the following information label WARNING This appliance must be earthed 41 SAFETY EARTHING IMPORTANT The wires in this mains lead are colour coded in accordance with the following code green and yellow Earth safety ground blue Neutral brown Live As the colours of the wires in the mains
11. he station is active User Manual BS 216 Issue 1 1998 ASL Intercom Utrecht Holland wo 5 0 FRONT PANEL CONTROLS amp CONNECTOR volume WER ca channel B 1 POWER switch Mains power push button for switching ON and OFF the internal power supply POWER LED This LED illuminates if line power is supplied by the internal power supply 3A BUZZER VOLUME trimmer This trimmer adjusts the volume of the buzzer 3B BUZZER This buzzer indicates an incoming or outgoing call It is activated by pressing a CALL button of the BS 216 or a CALL button of any other station on channel A or B for longer than two seconds You can adjust its volume with the buzzer volume control VOLUME A 8 B control knobs These knobs adjusts the listen level for the headset Each channel can be adjusted separately SIDETONE trimmers These trimmers adjust the level of your own voice as you hear it in your headset Adjustment procedure set the trimmer in start position fully clockwise switch off the microphone of all connected speaker stations switch on the microphone of the required channel turn up the volume of the required channel speak into the headset microphone adjust the listen level by turning the sidetone trimmer The operating area is between fully clockwise and minimum level Adjusting the sidetone does not affect the level of your voice as it is heard by other stations
12. l cable trunks metal connection boxes and overall multipair cable screen should be interconnected 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 for Earthing Concept Keep metal connection boxes and cable housings 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 Keep cables parallel as much as possible When two two 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 multipair 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 All cable routes should have a star configuration with the central earthing point usually close to the power supply position as the centre 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 in at angle of 90 only Intercom cables should never b
13. lead may not correspond with the coloured markings identifying the terminals in your plug proceed as follows The wire which is coloured green and yellow must be connected to the terminal in the plug which is marked with the letter E or by the earth symbol which is or coloured green wire which is coloured blue must be connected to the terminal which is marked with the letter N or coloured black The wire which is coloured brown must be connected to the terminal which is marked with the letter L or coloured red Those units that are supplied to the North American market will have an integral moulded 3 pin connector which is provided to satisfy required local standards 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 for proper operation of the BS 216 and the other connected stations This wire is internally connected to all exposed metal surfaces and any rack framework into which this unit might be mounted is assumed to be connected to the same grounding circuit 42 POWERING UP Powering up procedure Make sure that the red power switch on the left side of the front panel is OFF Connect the power cord to the rear of the station Plug the other end of the power cord into a PROPERLY GROUNDED outlet Turn on the power with the red button the green power LED will go on indicating t
14. nce 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 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 interpreted as a Call signal 10 0 GUARANTEE This unit is warranted by ASL Intercom to the original end user purchaser against defects in workmanship and 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 ASL intercom BV MAARSSEN UTRECHT HOLLAND POWER SUPPLY mains voltage range DC output voltage ripple and noise max output current 100 240 V 50 60Hz AC
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