Telex WM1000 User's Manual
Contents
1. e e Lp ugm 5 amp A a c o je 7e s Mo WM1000 WM1000 WM1000 WM1000 Figure 3 A single channel intercom system using one PS2000L with WM1000 Intercom Stations The PS2000L may be set to either combine or isolated mode In combine mode all intercom stations talk on a single party line and total current for the channel is 2 amps In isolate mode one string of intercom stations is operated as channel one and the other string is operated as channel two There is no communication between the separate channels and the total current per channel is 1 amp For WM1000 connection details refer to Figure 6 12 e e audlocom pu n zaz a a mem CF GF CI o o e e e e WM2000 WM2000 WM2000 WM1000 e e lu en EE a a oo c o o e e e e CHANNEL 1 e e UJ e PS2000L BER asa e e nc u pu a a z ae C C C o o e e e WM2000 WM2000 WM2000 WM2000 e e nc uf een az a a mem C uem C7 o o e e e e WM2000 WM2000 e Audiocom zz me Cu o amp e e CHANNEL 2 E MP TELEX PS2000L p LAE WM1000 WM2000 e Audiesem qum mem amp o Figure 4 A two channel intercom system using two PS2000L power supplies Each PS2000L is set to combine mode and it supplies power to one intercom ch2. Pin 5 Intercom channel 2 audio low and 24 VDC phantom power Pin 6 Intercom channel 2 audio high and 24 VDC phantom power 18 Intercom Channel Unbalanced Mode SW1 set to UNBAL position Output Level 1 Vrms 10 Input Impedance 150 ohms Bridging Impedance greater than 10 000 ohms Call Signaling Send 11 3 VDC Receive 4 VDC minimum Connector Type Six position terminal block with screw in wire clamps Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6 Common Local power 12 to 15 VDC 65 to 150 mA Channel 1 24 VDC input Channel 1 Intercom audio high and DC call Channel 2 24 VDC input Channel 2 Intercom audio high and DC call 19 Audiocom Factory Service and Parts Information When returning equipment for repair include your return address telephone number and proof of date of purchase along with a description of the problem The address for Audiocom equipment returns and parts information is Service Department Telex Communications Inc West Ist Street Blue Earth Minnesota 56013 U S A Telephone 507 526 3205 Collect calls not accepted Warranty Repairs If in warranty no charge will be made for the repairs Equipment returned for warranty repair must be sent prepaid and will be returned prepaid Non Warranty Repairs Equipment that is not under warranty must be sent prepaid to Telex If requested an estimate of repair costs will be issued prior to service After your approval and completion of
3. any standard two gang electrical box Brand names mentioned are the property of their respective companies Audiocom Installation Unpacking Each WM 1000 WM2000 is supplied with the following items Contact the shipper or your Audiocom dealer immediately if anything is damaged or missing Detach and fill out the registration card and return it to Telex to properly register your intercom station Quantity Description 1 WM1000 or WM2000 Intercom Station 1 Warranty and registration card 1 User Instructions 4 Mounting Screws Configuration Switch Pre check Before making connections read the configuration switch notes that follow and make sure that all switches are properly set for your intended usage Table 1 lists the switch descriptions and factory default settings Figure 1 shows the locations of the switches DC Call Enable DIP Switch 2 Leave this switch in the open position for Audiocom applications Set it to the closed position if the WM1000 WM2000 will be used in a Clear Com intercom system Incoming Call Beep DIP Switch 3 By default incoming calls are indicated by a red flashing Call key and a beep tone in the headphones If you do not want the beep tone set DIP switch 3 to the closed po sition Headset Microphone Type Selection DIP Switch 4 If the headset specifications indicate the microphone type is balanced or if you are unsure leave this switch in the open default position If the sp
4. TERE gt F j Pairz f gt gt DC Common on er por Shield Shield Ji gi gi PR 5 OPTIONAL LOCAL eI POWER SOURCE 12 to 15 VDC 65 to 150 mA eT Toon O DC ITI I III r 1 I LELLI I IT x 7 I I I Cable Type 22AWG Stranded 2 Pair Twisted wire with Shield P Denotes twisted pair Denotes shield Shield Earth ground Connect at power supply only Do not short to DC common Figure 6 Audiocom mode connections for a WM1000 Intercom Station 15 Audiocom TO ADDITIONAL TO POWER SINGLE OR TWO CHANNEL STATIONS SUPPLY CONNECTOR lt xm A o y Channel 2 Audio low Power i I par P gt Channel 2 Audio high Power lt i Channel 1 Audio low Power lt Par gt gt Channel 1 Audio high Power p p t I a Pair f gt gt gt DC Common E ed D NE Shield Shield PIN 1 S eje i Pim a OPTIONAL LOCAL POWER SOURCE 12 to 15 VDC 65 to 150 mA C EEE DER O DC gH Haga rrr 0 COMMON lt en u a Da u Ba I TI E gt I I Cable Ty
5. Telex User Instructions WM2000 Shown Model WM1000 WM2000 Wall Mount Intercom Stations Audiocom Intercom Systems TELE X FCC Statement This equipment uses and can radiate radio frequency energy that may cause in terference to radio communications if not installed in accordance with this man ual The equipment has been tested and found to comply with the limits of a Class A computing device pursuant to Subpart J Part 15 of FCC Rules which are designed to provide reasonable protection against such interference when op erated in a commercial environment Operation of this equipment in a residential area may cause interference which the user at his own expense will be required to correct C This product meets Electromagnetic Compatibility Directive 89 336 EEC Introduction Thank you for purchasing the Audiocom WM1000 WM2000 Wall Mount In tercom Station We hope the many design features of this product will satisfy your intercommunication requirements for many years to come To get the most out of your new intercom station please take a few moments to look through this booklet before using the Intercom Station for the first time Table of Contents Description Features Installation Unpacking Configuration Switch Pre check Intercom Channel Connections Dynamic Mic Headset Connection Power Up Sidetone Adjustment Operation i Channel Select WM2000 Only Recei
6. annel only Each intercom channel is a separate party line and total current for each channel is limited to 2 amps Note that both WM1000 and WM2000 Intercom Stations may be connected depending on each locations need to communicate with one or two intercom channels For WM1000 connection details refer to Figure 6 for the WM2000 refer to Figure 7 13 Audiocom e AUT cz c WM1000 LOCAL POWER 12 to 15 VDC 65 to 150 mA WM2000 LOCAL POWER 12 to 15 VDC 65 to 150 mA WM2000 LOCAL POWER 12 to 15 VDC 65 to 150 mA nud m WM1000 LOCAL POWER 12 to 15 VDC 65 to 150 mA WM2000 LOCAL POWER 12 to 15 VDC 65 to 150 mA LINE TERMINATION e n d a mem C7 o e e WM2000 LOCAL POWER 12 to 15 VDC 65 to 150 mA Figure 5 An example of an intercom system using all local powered stations with no power being distributed on the intercom channels dry lines WM2000 stations are shown but WM1000 stations may also be used Since an Audiocom power supply is not used the installer must connect a line termination somewhere in each channel for proper operation The required line termination is shown in Figure 8 14 TO ADDITIONAL TO POWER SINGLE CHANNEL STATIONS SUPPLY CONNECTOR I gt Channel Audio high Power Bat gt Channel Audio low Power lt lt d c
7. e un wanted feedback since the microphone may pick up your returned voice audio and re amplify it On the other hand if you are using headphones that completely enclose the ears a certain amount of your own voice level is desirable to overcome the muf fled sensation when talking The sidetone adjustment is different for these two situa tions If you are using open ear style headphones adjust sidetone as follows 1 Activate channel 1 as described in the operating instructions Required only for the WM2000 the WM1000 is active on whichever channel it is connected to 2 Activate talk and listen as described in the operating instructions 3 Slowly increase the volume to maximum while talking into the microphone 4 Usingasmall flat bladed screwdriver adjust the channel 1 sidetone trimmer Fig ure 1 to minimize your voice level in the headphones 5 For the WM2000 only activate channel 2 and repeat the above steps to adjust the channel 2 sidetone 10 6 Install the intercom station mounting screws after completing the adjustments The station is now ready for use If you are using headphones that completely enclose the ears adjust sidetone as follows 1 Activate channel 1 as described in the operating instructions Required only for the WM2000 the WM1000 is active on whichever channel it is connected to Activate talk and listen as described in the operating instructions Set the volume control to the n
8. ecifications indicate an unbalanced microphone set DIP switch 2 to closedn Table 1 Configuration Switch Settings Switch Description Settings Default Number Open Off Closed On Setting 1 Not used Don t care Open Closed DC 2 Call signal method Open Audiocom Open Closed Disabled 3 Incoming call beep Open Enabled Open Closed Unbalanced 4 Microphone type Open Balanced Open 5 Not used Don t care Open 6 Not used Don t care Open 7 Not used Don t care Open 8 Not used Don t care Open Balanced Unbalanced Switch SW 1 This switch is set at the factory to the balanced BAL position for use with Audio com intercom channels Set the switch to the unbalanced UNBAL position for use with a Clear Com intercom system Be sure and use the appropriate connection in formation based on how you have this switch set Intercom Channel Connections Important The following paragraphs and illustrations describe installation of the WM1000 WM2000 in an Audiocom Intercom System To use the WM1000 WM2000 in a Clear Com Intercom System set SW to the UNBAL position set DIP switch 2 to the Closed position and connect the Clear Com channel wires using the Unbalanced Mode Intercom Channel pin out information listed in the specifications page 19 Audiocom General Information a After connecting intercom stations as described below and before installing the mounting screws connect a headse
9. ine termination must be inserted in each intercom chan nel for proper operation Figure 5 page 14 shows an example of dry line operation The required termination components are shown in Figure 8 page 16 Dynamic Mic Headset Connection s For headset specifications see page 18 For best results in noisy environments a noise canceling directional or cardioid microphone is highly recommended 1 Make sure that DIP switch 4 is properly set for balanced or unbalanced micro phone See Table 1 page 7 2 Plug the headset into the headset connector Power up the intercom system and check the sidetone adjustment before placing the station in operation Audiocom Power Up Make sure any local power supplies are plugged in and turn on the power switches of any phantom power supplies e If you are using a large number of locally powered intercom stations you should activate their local power supplies before activating any phantom power supply Otherwise you may get an overload indication on the phantom supply In this case either reset the phantom supply or momentarily turn it off then on Sidetone Adjustment The WM1000 and WM2000 use full duplex audio the same as conventional tele phone lines in which the talk and listen audio are sent and received on the same wires Thus when you talk on a channel you will also here your own voice back in the headphones If you are using open ear style headphones this could caus
10. ormal listening level for intercom audio While talking into the microphone use a small flat bladed screwdriver to adjust the channel sidetone trimmer Figure 1 so that you can hear your own voice in the headphones at an acceptable level For the WM2000 only activate channel 2 and repeat the above steps to adjust the channel 2 sidetone Install the intercom station mounting screws after completing the adjustments The station is now ready for use 11 Audiocom 500 METERS e m az EF mem C o e e WM2000 WM2000 WM1000 LOCAL POWER 12 to 15 VDC 65 to 150 mA e e e PE m P 7 a c ex C o o amp o e e e e e e PS2000L WM2000 WM1000 WM2000 Figure 2 A two channel intercom system using one PS2000L Power Supply set to isolate mode In isolate mode each intercom channel is a separate party line and total current for each channel is limited to 1 amp Note that both WM1000 and WM2000 stations may be connected depending on each locations need to communicate with one or two channels WM1000 stations may be connected to either channel one or two Also note that locally powered stations may be connected This is recommended when stations are installed at remote locations Since the PS2000L provides termination for the intercom channels no user installed termination is required For WM1000 connection details refer to Figure 6 for the WM2000 refer to Figure 7
11. pe 22AWG Stranded 3 Pair Twisted wire with Shield d Denotes twisted pair f Denotes shield Shield Earth ground Connect at power supply only Do not short to DC common Figure 7 Audiocom mode connections for a WM2000 Intercom Station Channel audio low Channel audio high gt Resistors 300 Ohm 1 4W Capacitors 22 uf 35V Non polarized Electrolytic Common Figure 8 Audiocom mode line termination for dry line operation One required for each channel 16 Operation Channel Select WM2000 Only Tap the Ch Select key to select channel 1 or 2 The key is green when channel 1 is se lected and red when channel two is selected Receiving Calls 1 When there is an incoming call signal the Call key will flash red There will also be a beep tone in the headphones if the beep feature is activated page 6 e WM2000 only incoming call indication is provided only for the currently se lected channel 2 Turn on the Talk and Listen keys and begin your conversation Turn the keys off when finished t You can turn the talk and listen keys on in either momentary or latched mode For momentary operation press and hold the key For latched operation tap the key to turn it on Then tap it again to turn it off when finished Calling an Intercom Channel 1 WMQ2000 only select the desired intercom channel 2 Press and hold the Call key An inaudible call signal will be sent and the Listen key will au
12. possible Call Key Used to send call signals on the intercom channel and to indicate in coming calls Intercom Talk Key Both momentary push to talk and latching hands free talk are possible Additionally the WM1000 WM2000 has a feature called mic Kill receive which lets an operator at a remote master station such as the US2000A turn off the talk key Dynamic Mic Headset Connector 4 pin male XLR connector accepts headsets with monaural headphones and either a balanced or unbalanced dynamic micro phone Volume Control Adjusts intercom volume to headphones Audiocom Clear Com Selector Switch The selector switch sets the intercom station for compatibility with either Audiocom or Clear Com channel connector pin outs channel power requirements and call signaling requirements Configuration DIP switches DIP switches are provided to enable disable the fol lowing features Call Beep An optional call beep tone can be used for incoming call notification Headset Microphone Type Selection Balanced or unbalanced microphone may be selected DC call enable This may be turned on to use the intercom station with inter com systems that use DC call signaling Connections Terminal Block Used to connect intercom channel s and an op tional local power supply 10 Sidetone Trimmers These are used to adjust the level of the station operator s own voice in the headphones 11 Mounting Holes The mounting holes fit
13. t and perform the sidetone adjustment as de scribed on page 10 The WM1000 and WM2000 mount in a standard two gang electrical box Some ex ample intercom system configurations are shown in Figures 2 through 5 pages 12 through 14 Detailed connections for the WM1000 and WM2000 are shown in Fig ures 6 and 7 pages 15 and 16 There are two basic methods for connecting the WM1000 and WM2000 1 using a phantom powered connection and 2 using local power The two methods are discussed below Method 1 Phantom Powered Connection In this method operating power and intercom audio are delivered to the WM1000 WM2000 over the same wires The advantage of this setup is simplicity of connec tion Also the Audiocom power supply automatically provides what is known as a terminating impedance for the intercom system Without this terminating impedance the sound quality on the channel will be very distorted and the levels will shift every time additional stations are connected to the channel The disadvantage of the phan tom power method is that some operating power is lost over very long intercom ca bles and performance will then be reduced at remotely located stations Generally if the intercom stations are located within a few hundred feet of the power supply phantom power will be sufficient The actual distance over which power can be de livered can vary however depending on the number of stations connected Increasing the number of s
14. tations will reduce the distance Note that the range over which power can be delivered is independent from the range over which audio can be sent Audio can be transmitted for several miles providing that intercom stations are locally pow ered as described below Method 2 Locally Powered Connection Using this method the intercom station is connected to the intercom line just like any phantom powered intercom station except that a local power supply is also con nected This local power supply is located right with the intercom station and pro vides power for that station only Since power loss on the intercom lines is no longer an issue the operating range is now limited only by the audio transmission range which is several miles Another advantage to this method is that more stations can be connected to the intercom channels When local power is supplied to an intercom sta tion the station detects this and automatically disconnects from the phantom power supply As long as an Audiocom power supply is located somewhere in the intercom system the proper terminating impedance will still be supplied for all stations All Locally Powered Intercom Stations Dry Lines If all intercom stations are widely distributed you can dispense with a main power supply and use local power for each station When no power is delivered on the inter com channels this is known as dry line operation However since an Audiocom power supply is not used a l
15. the repairs the equipment will be returned on a col lect basis Collect charges may be avoided by sending a signed check for payment in full along with your signed estimate approval form shipping charges are included in the estimate For sales technical support and system design contact Pro Audio Sales Department Telex Communications Inc 9600 Aldrich Avenue South Minneapolis Minnesota 55420 U S A Telephone 612 884 4051 Collect calls not accepted 20 Notes 21 Audiocom Notes 22 Notes 23 TELEX TELEX COMMUNICATIONS INC e 9600 Aldrich Ave So Minneapolis MN 55420 U S A 9350 7621 000 Rev C 10 98
16. tomatically turn on 3 When you hear a response release the Call key and activate the talk key 4 Turn off your Talk and Listen keys to end the conversation 17 Audiocom Specifications General Power Requirements Phantom Power 24 VDC nominal 12 to 30 VDC 65 to 150 mA Local Power 12 to 15 VDC 65 to 150 mA Dimensions Mounts in standard two gang electrical box Environmental Requirements Storage 20 C to 80 C 0 to 95 humidity non condensing Operating 15 C to 60 C 0 to 95 humidity non condensing Dynamic mic Headset Microphone 50 to 200 ohm dynamic balanced or unbalanced Headphones 150 to 600 ohm monaural Connector Type XLR 4M Pin 1 Microphone low Pin 2 Microphone high Pin 3 Headphone high Pin 4 Headphone low Intercom Channels Balanced Mode SW1 set to BAL position Output Level 1 Vrms nominal Input Impedance 300 ohms Bridging Impedance greater than 10 000 ohms Sidetone 40 dB 35 dB adjustable range Call Signaling Send 20 kHz 100 Hz 0 5 Vrms 10 Receive 20 kHz 800 Hz 100 mVrms Mic Kill Detect Frequency 24 kHz 800 Hz 100 mVrms Noise Contribution less than 70 dB Common Mode Rejection Ratio greater than 50 dB Connector Type Six position terminal block with screw in wire clamps Pin 1 Audio and DC Common Pin2 Local power 12 to 15 VDC 65 to 150 mA Pin 3 Intercom channel 1 audio low and 24 VDC phantom power Pin 4 Intercom channel 1 audio high and 24 VDC phantom power
17. ving Calls Calling an Intercom Channel Specifications Factory Service and Parts Information iS e SS RR l ko N le le le lol Audiocom Description The WM1000 and WM2000 Intercom Stations are designed for stationary wall mounted installation in standard two gang electrical boxes The WM1000 is a single channel station the WM2000 provides switch selectable access to either of two intercom channels The WM1000 and WM2000 are ideal when users need to ac cess the intercom system from strategic locations where a desktop station would be unsuitable but they do not wish to carry around a belt pack station Since all of the intercom electronics are in the intercom station the user need only connect a headset or telephone style handset to begin communicating Alternatively a headset or tele phone handset can be left at the station eese TT 9 TOP innnnnnnr En 8 lt 7 CLOSED ON DIP SWITCH nummi POSITIONS OPEN OFF FRONT O O 11 4 Places 3 i a az CI 4 e Q 5 O O Figure 1 Reference view WM2000 shown See numbered features list Features 1 2 4 6 T 9 Channel Select Switch WM2000 Only Used to switch between intercom chan nels one and two The switch lights green for channel one and red for channel two Intercom Listen Key Both momentary push to listen and latching hands free listen are
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