Telex AUDIOCOM BP-2000 User's Manual
Contents
1. BP 1000 Type One XLR 3M and XLR 3F pair callout 8 in Figure 1 Audiocom Mode Internal switch SW3 and jumpers J2 J5 J6 and J7 set to BAL position Pin1 Common Pin2 Intercom audio low and 24 VDC input Pin 3 Intercom audio high and 24 VDC input Clear Com Mode Internal switch SW3 and jumpers J2 J5 J6 and J7 set to UNBAL position Pin 1 Common Pin2 30 VDC input Pin 3 Intercom audio call signal 12 BP 2000 Type One XLR 6M and XLR 6F pair callout 7 in Figure 1 Audiocom Mode Internal switch SW3 and jumpers J2 J5 J6 and J7 set to BAL position Pin1 Common Pin2 Local power 24 VDC Pin 3 Channel A intercom audio low and 24 VDC input Pin 4 Channel A intercom audio high and 24 VDC input Pin 5 Channel B intercom audio low and 24 VDC input Pin6 Channel B intercom audio high and 24 VDC input Clear Com Mode Internal switch SW3 and jumpers J2 J5 J6 and J7 set to UNBAL position Pin1 Common Pin2 Local power 14 to 30 VDC Pin3 Channel A 30 VDC input Pin 4 Channel A intercom audio call signal Pin5 Channel B 30 VDC input Pin6 Channel B intercom audio call signal SPECIFICATIONS GENERAL Power Requirements Channel supplied 24 VDC nominal 45 to 70 mA Local power BP 2000 only 24 VDC nominal 14 to 30 VDC 45 to 70 mA 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 Dimension2. The functions of the internal switches and jumpers are described in Table 2 NOTE On the BP 1000 jumper J3 must always have pins 2 and 3 shorted Side Tone Adjustment R19 The side tone adjustment is accessible either internally refer to Figure 2 or by removing the belt clip mounting screw callout 5 in Figure 1 To adjust the level of your own voice heard in the headphones tap the Talk button once to turn on the headset microphone Then use a small flat blade screwdriver to increase or decrease your voice level while talking into the microphone Clear Com Setup Make the following switch and jumper changes when the belt pack is used with Clear Com equipment BP 2000 1 SW3 must be placed in the UNBAL position 2 J2 must have pins 1 and 2 shorted U position 3 J5 jumper must be removed and placed on J6 4 J6 must have pins 1 and 2 shorted using jumper from J5 5 J7 must have pins 1 and 2 shorted BP 1000 1 SW3 must be placed in the UNBAL position 2 J2 must have pins 1 and 2 shorted U position 3 J3 J5 must have pins 2 and 3 shorted at all times 10 TABLE 2 INTERNAL SWITCHES AND JUMPERS JUMPER SWITCH JUMPER OR SWITCH FUNCTION DEFAULT NUMBER SETTING SW1 Electret Dynamic Microphone Select Dynamic A Must be set to Dynamic when J15 func tions are desired J15 Balanced Single ended Dynamic Mic Pins 1 amp 2 EX SW1 must be set to Dynamic shorted A S
3. selected channel The Mic Kill feature is activated when the beltpack receives a 24 kHz signal from the channel In some applications the Mic Kill and Call signal features are not desired and need to be disabled ELIMINATING MIC KILL AND CALL SIGNAL CAUTION TO PREVENT DAMAGE TO THE EQUIPMENT THESE MODIFICATIONS SHOULD ONLY BE MADE BY QUALIFIED TECHNICIANS If desired the Mic Kill and Call signal features can be disabled in the BP 2000 BP 1000 by removing a surface mounted capacitor from the printed circuit board Perform the following 1 Before making changes to the printed circuit board disconnect all power and line connections from the beltpack 2 Refer to Figure 3 and locate C38 on the underside of the printed circuit board 3 Remove capacitor C38 from the printed circuit board RESTORING MIC KILL AND CALL SIGNAL To restore the Mic Kill and Call signal features replace C38 with Telex part number 102879 218 1500 pF 50V capacitor 18
4. INC the COMPANY OFFERS TO LICENSE THE INSTALLED SOFTWARE OR PROGRAM the SOFTWARE FOR USE WITH THE PRODUCT IN WHICH IT WAS INSTALLED YOU ARE AGREEING TO BECOME BOUND BY THE TERMS OF THIS AGREEMENT IF YOU DO NOT AGREE TO THE TERMS OF THIS AGREEMENT DO NOT USE THIS PRODUCT PROMPTLY RETURN THE PRODUCT TO THE PLACE WHERE YOU OBTAINED IT FOR A FULL REFUND The installed software as supplied by the Company is licensed not sold to you for use only under the terms of this license and the Company reserves all rights not expressly granted to you You own the product or other media on or in which the Software is originally or subsequently recorded or fixed but the Company retains ownership of all copies of the Software itself 1 License This license allows you to use the Software for internal purposes only on a single product in which it was installed 2 Restrictions a You may not market distribute or transfer copies of the Software to others or electronically transfer or duplicate the Software YOU MAY NOT REVERSE ENGINEER DECOMPILE DISASSEMBLE MODIFY ADAPT TRANSLATE RENT LEASE OR LOAN THE SOFTWARE OR CREATE DERIVATIVE WORKS BASED ON THE SOFTWARE OR ANY ACCOMPANYING WRITTEN MATERIALS b The Software and the accompanying written materials are copyrighted Unauthorized copying of the Software including portions thereof or the written materials is expressly forbidden c You understand that the Company may update or re
5. Telex Operating Instructions BP 2000 BP 1000 Belt Packs Audiocom Intercom System GENERAL The Audiocom BP 2000 and BP 1000 are microprocessor controlled one and two channel intercom belt packs An internal switch and jumper setting allows the units to be used with Clear Com components if desired Other internal switch and jumper settings allow the unit to be uniquely configured to the operator s requirements FCC STATEMENT This equipment uses and can radiate radio frequency energy that may cause interference to radio communications if not installed in accordance with this manual The equipment has been tested and found to comply with the limits of a Class A computing device pursuant to Subpart B Part 15 of FCC Rules which are designed to provide reasonable protection against such interference when operated 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 CE This product meets the Electromagnetic Compatibility Directive 89 336 EEC Audiocom is a registered trademark of Telex Communications Inc Burnsville Minnesota 55337 Clear Com is a registered trademark of Clear Com Intercom Systems End User License Agreement for Telex Software IMPORTANT Please read this document carefully before using this product THIS DOCUMENT STATES THE TERMS AND CONDITIONS UPON WHICH TELEX COMMUNICATIONS
6. ard in the headset indicates the current mode of operation Press the Call key to change to the next mode of operation Each press of the Call key will cause the BP 2000 BP 1000 to change to the next mode of operation When the desired mode is reached press the Talk key to select that mode and exit the mode changing function Beeps will be heard in the headset when the mode changing function is exited The number of beeps heard indicates the selected mode of operation NOTE Each time the intercom system power is turned on the beltpack will reset to the default mode of operation Mode 2 INTERNAL SWITCHES JUMPERS AND ADJUSTMENTS There are several internal switches jumpers and an adjustment that affect operation These are described below To gain access to the switches jumpers and the adjustment disconnect all power and line connections Remove two screws from the top of each side and two screws from bottom of each side Switch jumper and adjustment locations are shown in Figure 2 J4 DYNSW1 OOOO Oa 15 E 123 9 Wi N w R49 S E od wW gt i ce 5 SW4 SW2 SW5 Figure 2 Internal Switches Jumpers and Adjustments NOTE Figure 2 shows a BP 2000 with the switches and jumpers in their factory default positions referenced in Table 2 The SIDETONE adjustment is also accessible behind the screw that holds the belt clip callout 5 in Figure 1
7. ingle ended Mic Pins 1 amp 2 shorted A Balanced Mic Pins 2 amp 3 shorted J3 Power Select Pins 2 amp 3 Channel One Power Pins 2 amp 3 shorted shorted S On BP 1000 pins 2 amp 3 always shorted Channel Two Power Pins 1 amp 2 shorted J5 Power Select Pins 2 amp 3 Channel One Power Pins 2 amp 3 shorted shorted On BP 1000 Pins 2 amp 3 always shorted Channel Two Power Pins 1 amp 2 shorted A Must be set for same channel as J3 for proper power operation in Audiocom mode on BP 2000 Must be used in conjunction with SW3 SW3 Clear Com Audiocom Operation Balanced Unbalanced Balanced Line Must be used in conjunction with J2 J5 J6 and J7 J2 Clear Com Audiocom Operation Pins 2 amp 3 Pins 1 amp 2 shorted UNBAL Clear Com shorted Pins 2 amp 3 shorted BAL Audiocom A Must be used in conjunction with SW3 J6 DC Call Detect Clear Com operation only No jumper not used in Audiocom mode BP 2000 only present A Disabled No pins jumpered A Enabled Pins 1 amp 2 shorted A To enable use jumper from J5 J7 DC Call Detect Clear Com operation only Jumper on not used in Audiocom mode BP 2000 only one pin Disabled No pins jumpered only Enabled Pins 1 amp 2 shorted 11 CONNECTOR PIN CONFIGURATIONS Headset Connector Type XLR 4M callout 6 in Figure 1 Pin 1 Headset microphone low Pin 2 Headset microphone high Pin 3 Headphone high Pin4 Headphone low Intercom Channel Connectors
8. l press and hold the Call button until a verbal response is received The indicator will glow red On the BP 2000 calls can be sent on the selected channel only 4 Talk Button and Indicator The Talk button activates the headset microphone and operates in two ways Latched Mode Tap the button once to talk The indicator will glow green Tap the button again when finished with a conversation Momentary Mode Press and hold the button to talk momentarily Release the button when finished talking NOTE On the BP 2000 if no headset is connected when the Talk button is pressed the Talk button will have the same function as the Chan button Sidetone Control When using a headset this control adjusts your own voice level heard in the headphones To adjust the level tap the Talk button once to turn on the headset microphone Then use a small flat blade screwdriver to increase or decrease your voice level while talking into the microphone This control is accessable by removing one screw of belt clip Headset Connector This connector accepts a four wire Telex boom microphone headset Intercom Channel Connectors On the BP 2000 intercom channels are connected via a pair of 6 pin connectors one male and one female The male and female connectors are wired together in parallel providing a loop through at each connector pin Use one connector to connect to the intercom channel Use the other connector to dais
9. lly set for single ended dynamic operation To change the microphone type to balanced dynamic refer to Table 2 for the position of J15 To change the headset microphone to an electret type refer to Table 2 in this manual for the position of switch SW1 If the type requirement of a headset microphone is unknown the recommended setting is single ended dynamic BP 2000 5 BP 1000 t 6 Figure 1 BP 2000 amp BP 1000 Connections and Controls EXTERNAL CONNECTIONS amp CONTROLS NOTE The numbers refer to the callouts in Figure 1 1 Volume Control Use this control to adjust the headset listen level 2 Chan Button and Indicators The Chan button only on the BP 2000 allows the user to select which intercom channel is active The yellow indicator next to the 7 or 2 lights to show the active channel Press the Chan button to change the channel selection the yellow indicator for that channel will light 3 Call Button and Indicator The Call function allows the user to send or receive signals to other devices on the intercom channel selected The Call button operates in two ways Call receive When there is an incoming call signal the indicator is red If Audible Call Alert is enabled incoming calls will cause beeps in the headset On the BP 2000 calls can be received on the selected channel only Call send To send a call signal to all stations on a channe
10. rmonic Distortion Less than 1 at Channel output 16 FACTORY SERVICE All equipment returned for repair must be accompanied by documentation stating your return address telephone number and proof of date of purchase along with a description of the problem In lieu of this you may obtain a Return Authorization form from our Customer Service Department Customer Service Department Telex Communications Inc 12000 Portland Avenue South Burnsville Minnesota 55337 U S A Telephone 9552 884 4051 Collect calls not accepted Return equipment to Service Department Telex Communications Inc West 1st Street Blue Earth Minnesota 56013 U S A Warranty Repairs If in warranty no charge will be made for the repairs Equipment being 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 Once your approval for repair and repair of equipment is completed the equipment will be returned on a collect basis Collect charges may be avoided by sending a signed check for payment in full along with your signed estimate approval form the estimate includes the shipping charge APPENDIX A OPTIONAL FOOTBALL MODIFICATIONS GENERAL DESCRIPTION In Audiocom Intercom Systems the Mic Kill feature is used to turn off any activated microphones on a
11. s 5 0 127 mm H x 3 5 88 9 mm W x 1 8 45 7 mm D Weight 1 5 pounds 0 68 kg INTERFACE REQUIREMENTS Headset 50 to 200Q dynamic microphone 150 to 600Q headphones Balanced Intercom Channel Output Level 1 Vrms nominal Input Impedance 300Q 5 Bridging Impedance greater than 10 000Q Call Signalling Send 20 kHz 100 Hz 0 5 Vrms 10 Receive 20 kHz 800 Hz 100 mVrms Mic Off Frequency Detect 24 kHz 800 Hz 100 mVrms Noise Contribution less than 60 dB on the line 14 Unbalanced Intercom Channel Output Level 200 mVrms 10 Input Impedance 1509 5 Bridging Impedance greater than 10 000Q Call Signalling Send 12 3 VDC Receive 4 VDC minimum HEADPHONE AMPLIFIER Voltage Gain 27 3 dB from the line Maximum Output 60 mW into 150Q Frequency Response 200 Hz to 8 kHz with no more than 4 dB deviation Audible Alert 1 kHz at the headset Total Harmonic Distortion Less than 2 at 50 mW from the line Sidetone 20 dB minimum range adjustable DYNAMIC MICROPHONE AMPLIFIER Voltage Gain Mic to Channel 45 3 dB before limiting Mic to Headphone adjustable 65 dB range into 1508 Frequency Response 200 Hz to 8 kHz 1 3dB Total Harmonic Distortion Less than 1 at Channel output at 1 kHz ELECTRET MICROPHONE AMPLIFIER Voltage Gain Mic to Channel 27 3 dB before limiting Mic to Headphone adjustable 45 dB 10 into 1500 Frequency Response 200 Hz to 8 kHz 1 3dB Total Ha
12. vise the Software and in so doing incurs no obligation to furnish such updates to you 3 Limited Warranty The Company does not warrant that the operation of the Software will meet your requirements or operate free from error The Company DISCLAIMS ALL OTHER WARRANTIES AND CONDITIONS EITHER EXPRESS OR IMPLIED INCLUDING THE WARRANTIES OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE AND NON INFRINGEMENT OF THIRD PARTY RIGHTS 4 Limited Liability The liability of the Company for any claims arising out ot this License based upon the Software regardless of the form of action shall not exceed the greater of the license fee for the Software or 50 38109 709 Rev A 10 97 OPERATION SYSTEM POWER The BP 2000 belt pack receives power externally in one of two ways e Via the intercom channel similar to the BP 1000 e Via the local power pin 2 of the intercom channel connector The BP 1000 belt pack receives power externally via the intercom channel Both the BP 2000 and BP 1000 will pass system power through to subsequent belt packs that are daisy chained together INITIAL BP 2000 BP 1000 SETUP The channel termination is initially set for balanced operation which is compatible with other Audiocom equipment If the unit is going to be connected to Clear Com equipment one switch and several jumpers must be changed as described in the section on Clear Com Setup in this manual The headset microphone type is initia
13. y chain a cable to the next belt pack or other station on the channel 8 Local Power Input BP 2000 only Normally the BP 2000 is powered from the intercom system and will turn on with the intercom system The BP 2000 belt pack may also be powered from an optional power supply 14 30 VDC connected between pin 2 and pin 1 of the intercom channel connector PARAINDENT Intercom Channel Connectors On the BP 1000 the intercom channel is connected via a pair of 3 pin connectors one male and one female The male and female connectors are wired together in parallel providing a loop through at each connector pin Use one connector to connect to the intercom channel Use the other connector to daisy chain a cable to the next belt pack or other station on the channel OPERATING MODES The microprocessor within the BP 2000 BP 1000 controls four modes of operation that affects the Microphone Kill and Audible Call Alert features TABLE 1 OPERATING MODES MODE MIC KILL AUDIBLE beeps CALL ALERT 1 Disabled Disabled 2 Default Enabled Disabled 3 Disabled Enabled 4 Enabled Enabled Changing Modes of Operation Perform the following steps to change the mode of operation 1 Both the Talk and Call indicators should be off Press and hold the Talk key then press and hold the Call key then release both keys The Call indicator should now glow red The number of beeps he
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