User Manual PS 150 [ASL]
Contents
1. Overall shield of multipair cable and or metal cable trunk EARTHING CONCEPT ASL INTERCOM PAGE 8 User Manual PS 150 October 2013 ASL Intercom BV2. side tone trimmer of the telephone line interface 9 in start position fully clockwise set RECEIVE level to minimum turn up RECEIVE level slowly while speaking into the headset microphone The volume of your voice in the headset can s will increase Turn telephone line side tone trimmer counter clockwise and adjust for minimum level of your voice in the headset can s Repeat step 7 and 8 a few times until you have obtained the best possible setting minimal level 2 PAGE 5 User Manual PS 150 October 2013 ASL Intercom BV 8 0 TECHNICAL SPECIFICATIONS PS 150 Intercom Line Driver Telephone Line Side Tone Max output current 3 mA rms Rejection gt 10 dB 300 Hz 3 kHz output impedance gt 150 kQ Dimensions amp Weight PS 150 Intercom Line Side Tone Width 483 mm Rejection gt 30 dB Height 44 mm Depth 124 mm Telephone Line Driver Weight 2800 grams output impedance 600 Q max output 14 dBu 0 dBu is defined as 775 mV into open circuit frequency response 150 Hz 6 kHz 3 dB ASL reserves the right to alter specifications without prior notice 9 0 BLOCK DIAGRAM PS 150 INPUT EXTENSION e XLR PIN 3 9 XLR PIN 2 9 XLR PIN 1 INTERCOM LINE TELEPHONE INTERCOM LINE __ PIN 5 PIN 4 PIN 3 PIN 2 PIN 5 PIN 4 PIN 3 PIN 2 PIN4 XLR 4 PIN3 TELEPHONE j PIN2 amp 1 LINE CONNECT PIN 1 amp 47 HOLD INDICATOR nr ai TEST HEADSET ASL Intercom BV ZONNEBAAN 42 UTRECH
3. the PS 150 to the intercom party line Connect the intercom party line cable to the intercom line connector on the rear panel Use professional flexible microphone cable with 2 wires and 1 shield only 3 0 FRONT PANEL CONTROLS amp CONNECTOR Adjustable side tone circuits allow optimizing input output separation for the intercom line and for the telephone line For a good performance of the PS 150 the side tones have to adjusted carefully The built in test tone generator assists to adjust or check the side tone settings To the PS 150 a telephone set hereinafter called ohone may be connected to initiate a telephone connection dialing or to detect an incoming telephone call the telephone is ringing The PS 150 is powered 30 V DC via the intercom party line The PS 150 is fully protected against wiring mistakes reverse power or short circuit in the interconnecting microphone cables Connecting the PS 150 to the telephone line Connect the telephone cable to the Ru 1 1 connector on the rear panel 1 POWER indicator This LED illuminates if 30 V DC power is supplied via the intercom line to the PS 150 2 RECEIVE volume knob To control the level of the telephone signal as it is received by the intercom line 3 SEND volume knob To control the level of the intercom signal as it is sent to the telephone line 4 TEST button By keeping this recessed button pushed with a pin or pen a test tone generator is acti
4. ANALOG INTERCOM PS 150 SINGLE CHANNEL TELEPHONE INTERFACE USER MANUAL October 2013 This product is 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 GENERAL DESCRIP HON sser EEE EEEO i 20 INS TACCA HON eee ere eee ee eee eer 3 0 FRONT PANEL CONTROLS amp CONNECTOR ee 4 0 REAR PANEL CONNECTORS ccc cccceeceeteeeee eee teeeeeeeaeeeeeenaes 9 0 ESTABLISHING A TELEPHONE CONNECTION 0000 ee 6 0 THE INTERFACES IN THE PS 150 teeter ee etteeeeeeeaes TO ADJUSTING TE SIDE TONES Le 8 0 TECHNICAL SPECIFICATIONS PS 150 rruunnnrnnrrnvnnrnnrrnvenrnnrrnennnr 9 0 BLOCK DIAGRAM PBN senn PAGE 2 User Manual PS 150 October 2013 ASL Intercom BV 1 0 GENERAL DESCRIPTION The PS 150 is designed to interface an ASL intercom system 3 wire party line to a telephone system 2 wire Communication can be achieved between a telephone line and one or several ASL user stations or between two ASL intercom systems via a telephone line The unit is a combination of two interfaces One interface splits the intercom party line into a separate audio input and output the other interface splits the telephone line into a separate audio input and output The inputs and outputs are internally cross connected 2 0 INSTALLATION Connecting
5. T ALL RIGHTS RESERVED BLOCK DIAGRAM PS 150 Size mi B Mai 4 201 OG User Manual PS 150 October 2013 ASL Intercom BV 10 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 11 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 conduct
6. ed 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 User Manual PS 150 October 2013 ASL Intercom BV 12 0 POSSIBLE SYSTEM CONFIGURATION la PS 19 PS 29 PS 19A PGM PS 230 f PS 130 L A PS 278 SN PS 260 i PS 150 v PHONE TELEPHONE LINE AUX D CAMERA 1 CAMERA 2 POSSIBLE SYSTEM CONFIGURATION OF A 2 CHANNEL INTERCOM NETWORK 13 0 EARTHING CONCEPT POWER SUPPLY Z1 Z2 Line Impedances 30V Z1 z2 Mains Earth TOR a 3 KPA KPA Wallbox CP K Wallbox XLR 3 _ XLR 3 3 3 4 3 3 3 GA NLP FP NPA NF KPA _ ONLY ONE Individual intercom line shield i EARTHING POINT GJ KI not to be connected 4 RI C KC with overall shielding
7. emaining high frequencies to a minimum by turning the HI trimmer clockwise repeat step 6 and 7 until you have obtai ned the best possible settings minimal levels 2 3 4 Since the test tone is placed onto the intercom line all connected intercom stations hear this tone This may be rather disturbing It is advised to not adjust this side tone whilst the intercom system is use To prevent internal feedback or a hollow sound in the intercom and the telephone system all side tone trimmers must be adjusted carefully Due to the complex impedance of the telephone line its input output separation may be not as good as the one of the intercom line This may also decrease the side tone rejection in the intercom stations on the intercom party line connected to the PS 150 If speaker stations are connected feedback may occur To prevent this keep the SEND and RECEIVE levels of the PS 150 low and turn the speaker attenuator trimmers of the howling speaker stations counter clockwise 7 2 To adjust the side tone of the telephone line interface proceed as follows 1 Make sure that procedure 7 1 has been executed connect an ASL user station to the intercom party line connect a headset to that user station and adjust the side tone of that station to minimum level Connect the PS 150 to the telephone line Push the CONNECT button 7 The PS 150 is now on line In the headset can s you temporarily hear a dial tone Set the
8. interconnected and at the central earth point in the intercom network 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 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 plac
9. nnecting the telephone line RJ 11 wiring Pin 1 not existing in RJ 11 Pin 2 black wire Pin 3 red wire Pin 4 green wire Pin 5 yellow wire Pin 6 not existing in RJ 11 Pin 3 amp 4 pair 1 Pin 2 amp 5 pair 2 5 0 ESTABLISHING A TELEPHONE CONNECTION Proceed as follows 1 Connect the telephone cable to the TELEPHONE LINE connector 11 2 Connect a telephone set phone to the PHONE connector 12 3 Make sure that the CONNECT buiton is not pushed The telephone line is switched to the telephone set phone The HOLD Led is not lit indicating that the PS 150 is off line 4 Take the telephone handset from the hook one hears a dial tone and dial a phone number Pin assignment Pin 1 not connected Pin 2 not connected Pin 3 phones Pin 4 phones GND Pra series Cass Intercom 12 PHONE connector This connector is for connecting a telephone set phone For pin assignments see 11 13 INTERCOM LINK connector 14 INTERCOM IN connector XLR 3 connectors 13 and 14 are for connecting the intercom party line daisy chaining Pin assignment Pin 1 OV ground shield Pin 2 30V power wire Pin 3 audio wire 5 After a telephone connection has been made push the CONNECT button The telephone line is now switched to the PS 150 and no longer to the phone The HOLD Led is lit indicating that the PS 150 is on line 6 Place the telephone handset back on the hook of the
10. or microphone cable type 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 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 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 units 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
11. telephone set phone To terminate a telephone connection push the CONNECT button again The HOLD Led now extinguishes and the PS 150 is off line User Manual PS 150 October 2013 ASL Intercom BV 6 0 THE INTERFACES IN THE PS 150 The PS 150 contains two interfaces One interface splits the signal on the intercom party line into a separate audio input and output The other interface splits the signal on the telephone line into a separate audio input and output The inputs and outputs are internally cross connected Each interface has its own side tone trimming The trimmers in the intercom line section of the front panel control the input output separation of the intercom line interface The trimmer in the telephone section of the front panel controls the input output separation of the telephone line interface 7 0 ADJUSTING THE SIDE TONES 7 1 To adjust the side tone of the intercom party line interface proceed as follows 1 plug a headset or headphones into the TEST HEADSET connector 10 set RECEIVE level to minimum set SEND level to maximum set intercom line side tone trimmers in start position LO trimmer turn fully clockwise HI trimmer turn fully counter clockwise activate test tone generator by pushing recessed button 4 with a pen or pin decrease test tone listen level in the test headset headphone to a minimum by turning the LO trimmer counter clockwise decrease the listen level of the r
12. vated which adds a 200HZ tone to the party line It allows adjusting or checking the side tone trimmer settings of the intercom line interface See section 7 1 5 SIDE TONE LO trimmer intercom line This trimmer controls the input output separation of the intercom line It also compensates for the impedance of the interconnecting cable See section 7 1 6 SIDE TONE HI trimmer intercom line This trimmer controls the input output separation in the high frequency range It also compensates for the capacity of the party line cable See section 7 1 7 CONNECT button If this latching button is not pushed the telephone line is switched to the telephone set phone which is connected to 12 If pushed the telephone line is connected to the PS 150 see section 5 0 8 HOLD indicator LED This LED illuminates if the telephone line is switched to the PS 150 which is then on line See section 5 0 PAGE 3 User Manual PS 150 October 2013 ASL Intercom BV 9 SIDE TONE trimmer telephone line This trimmer controls the input output separation of the telephone line See section 7 2 10 TEST HEADSET connector To this XLR 4 connector a headset or headphones can be connected allowing to listen to the intercom line during the adjustment of the side tone of the intercom line interface See section 7 1 4 0 REAR PANEL CONNECTORS Serial Number 11 TELEPHONE LINE connector This RJ 11 connector is for transformer balanced co
Download Pdf Manuals
Related Search