Telex BP-1002, BP-2002 User Manual

Operating Instructions

BP-1002 / BP-2002 Beltpacks

Audiocom Intercom Systems

93507740000 Rev L September/2010

Audiocom Intercom Systems

PROPRIETARY NOTICE

The product information and design disclosed herein were
originated by and are the property of Bosch Security
Systems, Inc. Bosch reserves all patent, proprietary design,
manufacturing, reproduction, use and sales rights thereto,
and to any article disclosed therein, except to the extent
rights are expressly granted to others.

COPYRIGHT NOTICE

Copyright 2010 by Bosch Security Systems, Inc. All rights
reserved. Reproduction, in whole or in part, without prior
written permission from Bosch is prohibited.

WARRANTY AND SERVICE INFORMATION

For warranty and service information, refer to the
appropriate web site below:

RTS...................................www.rtsintercoms.com/warranty

RTSTW......................................... www.rtstw.com/warranty

AudioCom .................... www.telexaudiocom.com/warranty

RadioCom......................www.telexradiocom.com/warranty

Headsets.................... www.intercomheadsets.com/warranty

CUSTOMER SUPPORT

Technical questions should be directed to:

Customer Service Department
Bosch Security Systems, Inc.
12000 Portland Avenue South
Burnsville, MN 55337 USA
Telephone: [phone]
Fax: [phone]
[e-mail]

Technical Questions EMEA

Bosch Security Systems Technical Support EMEA

http://www.rtsintercoms.com/contact_main.php

THE
LIGHTNING
FLASH AND
ARROWHEA
D WITHIN
THE
TRIANGLE
IS A
WARNING
SIGN
ALERTING
YOU OF
“DANGEROU
S VOLTAGE”
INSIDE THE
PRODUCT.

SEE MARKING ON BOTTOM/BACK OF PRODUCT

WARNING: APPARATUS SHALL NOT BE EXPOSED TO
DRIPPING OR SPLASHING AND NO OBJECTS FILLED
WITH LIQUIDS, SUCH AS VASES, SHALL BE PLACED ON
THE APPARATUS.

WARNING: THE MAIN POWER PLUG MUST REMAIN
READILY OPERABLE

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
GROUNDING OF THE CENTER PIN OF THIS PLUG MUST
BE
MAINTAINED.

WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS APPRATUS TO RAIN OR
MOISTURE.

WARNING: TO PREVENT INJURY, THIS APPARATUS
MUST BE SECURELY ATTACHED TO THE FLOOR/WALL/
RACK IN
ACCORDANCE WITH THE INSTALLATION INSTRUC­TIONS.

CAUTION: TO
REDUCE THE
RISK OF
ELECTRIC
SHOCK, DO NOT
REMOVE COVER.
NO USER­SERVICABLE
PARTS INSIDE.
REFER
SERVICING TO
QUALIFIED
SERVICE
PERSONNEL.

THE
EXCLAMATION
POINT WITHIN
THE TRIANGLE
IS A WARNING
SIGN ALERTING
YOU OF
IMPORTANT
INSTRUCTIONS
ACCOMPANYIN
G THE PRODUCT

This product is AC
only.

2

Audiocom Intercom Systems

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with dry cloth.

7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.

8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.

9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug
has two blades with one wider than the other. A grounding type plug has two blades and a
third grounding prong. The wide blade or the third prong are provided for your safety. If the
provided plug does not fit into your outlet, consult an electrician for replacement of the
obsolete outlet.

10. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.

11. Only use attachments/accessories specified by the manufacturer.

12. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.

13. Unplug this apparatus during lightning storms or when unused for long periods of time.

14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus
has been damaged in any way, such as power-supply cord or plug is damaged, liquid has
been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain
or moisture, does not operate normally, or has been dropped.

Important Safety Instructions

FCC STATEMENT

This equipment uses, and can radiate radio
frequency energy that may cause interference to
radio communication 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 J, 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.

This product meets
Electromagnetic Compatibility
Directive 89/336/EEC

3

Audiocom Intercom Systems

4

Table

of

Contents

INTRODUCTION ......................................................................3

External Connections and Controls .................................................5

OPERATION .............................................................................7

System Power .................................................................................. 7

Initial BP-1002/2002 Setup ............................................................. 7

Operating Modes .............................................................................. 8

Changing Modes of Operation ............................................................... 8

Internal Switches, Jumpers, and Adjustments ................................. 9

Sidetone Adjustment (R145) .................................................................. 9

Mic Gain Adjustment (R156) ............................................................... 10

Clear-Com Setup .................................................................................. 10

Connector Pin Configurations ....................................................... 11

Specifications ................................................................................. 12

Optional Football Modifications .................................................... 13

General Description .............................................................................. 13

Eliminating Mic Kill and Call Signal ................................................... 13

Restoring Mic Kill and Call Signal ...................................................... 13

Notes .............................................................................................. 15

CHAPTER 1

Introduction

WARNING: If you have a BP-1002/2002 with a 9030-7740-XXX circuit board,

you must obtain revision H of this user manual.

The Audiocom BP-1002 and BP-2002 are microprocessor controlled 1- and
2-channel intercom beltpacks. 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.

3

Introduction

FIGURE 1. BP-2002 & BP-1002 Connections and Controls

4

Introduction

External Connections and Controls

NOTE: The numbers refer to the callouts in Figure 1.

1. Volume Control: The Volume Control is used to adjust the

headset listen level.

2. Chan Button and Indicators: The Chan button (only on the BP-2002)

allows the user to select which intercom
channel is active. Press the Chan button to
change the channel selection. The yellow
indicator next the channel number lights
to show the active channel.

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 (2) ways:

• Call Receive - When there is an

incoming call signal, the indicator is
red. (If Audible Call Alert is enabled,
incoming calls cause beeps in the
headset.) On the BP-2002, calls can be
sent on the selected channel only.

• Call Send - To send a call signal to all

stations on a channel, press and hold
the Call button until a verbal response
is received. The indicator will glow
red. On the BP-2002, 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 (2) ways:

• Latched Mode - Tap the button once to

talk. The indicator glows 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-2002, if no headset is connected, when the Talk button is

pressed, the Talk button has the same function as the Chan button.

5

Introduction

5. Sidetone Control: When using a headset, this control adjust

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 Phillips
head screwdriver to increase or decrease
your voice level while talking into the
microphone. (This control is accessible
by removing one (1) screw in the belt
clip.)

6. Headset Connector: This connector accepts a 4-wire Bosch

boom microphone headset.

7. Intercom Channel Connectors: On the BP-2002, 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 daisy chain a cable to
the next beltpack or other station on the
channel.

Local Power Input - Normally, the
BP-2002 is power from the intercom
system and turns on with the
intercom system. The BP-2002
beltpack may also be powered from
an optional power supply
(21-30 VDC) connected between
pin 2 (+) and pin 1 (-) of the intercom
channel connector.

8. Intercom Channel Connectors On the BP-1002, 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 beltpack or other station on the
channel.

6

CHAPTER 2

Operation

System Power

The BP-1002/2002 beltpack receives power externally in one of two ways:

• The intercom channel

• The local power (pin 2) of the intercom channel connector

(BP-2002 only)

Both the BP-1002 and BP-2002 pass system power through to subsequent beltpacks
that are daisy chained together.

Initial BP-1002/2002 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 must be changed as described in the second on Clear-Com
setup in this manual.

The headset microphone type is auto-sensing, which means it automatically
determines if an Electret or Dynamic headset is attached to the unit.

7

Operation

Operating Modes

The microprocessor within the BP-1002/2002 controls four (4) modes of operation
that affect the Microphone Kill and Audible Call Alert features. These modes can be
seen in Table X on page X.

Changing Modes of Operation

Perform the following steps to change the mode of operation.

NOTE: Both the Talk and Call indicators should be off and the headset should

be connected.

1. Press and hold the Talk key, and then press and hold the Call key.

2. Release both keys.

The Call indicator glows red. (The number of beeps heard in the headset
indicates the current mode of operation.)

3. Press the Call key to change to the next mode of operation.

Each press of the Call key causes the BP-1002/2002 to change the next mode
of operation.

4. When the desired mode is reached, press the Talk key to select that mode and

exit the mode changing function.
Beeps are heard in the headset when the mode changing function is exited.
The number of beeps hears indicates the selected mode of operation.

NOTE: Each time the intercom system power is turned on, the beltpack

resets to the default mode of operation (mode 2).

TABL E 1 . Modes of Operation

Mode (beeps) Mic Kill Audible Call Alert

1 Disabled Disabled

2 (default) Enabled Disabled

3 Disabled Enabled

4 Enabled Enabled

8

Operation

Internal Switches, Jumpers, and Adjustments

There are several switches, jumpers, and adjustments that affect operation. These are
described below. To gain access to the switches, jumpers, and adjustments, disconnect
all power and line connections. Remove two (2) screws from the top of each side and
two (2) from the bottom of each side. Switch, jumper and adjustment locations are
shown in Figure 2.

FIGURE 2. Internal Switches, Jumpers, and Adjustments

NOTE: Figure 2 shows a BP-2002 with the switches and jumpers in their factory

default positions. SW5 does not exist on the BP-1002 board.

The Sidetone and Mic Gain adjustment are also accessible behind the screw that holds
the belt clip (callout 5 in Figure 1).

The functions of the internal switches are jumpers are described in Table 2 on
page 10.

Sidetone Adjustment (R145)

The sidetone adjustment is accessible either internally (refer to Figure 3) or by
removing the belt clip mounting screw (callout 5 in Figure 1).

9

Operation

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 Phillips head screwdriver
to increase or decrease your voice level while talking into the microphone.

Mic Gain Adjustment (R156)

The Mic Gain Adjustment is accessible internally on the board (R156) (refer to Figure

3) or by removing the belt clip mounting screw (callout 5 in Figure 1).

To adjust mic gain, do the following:

> Using a Phillips head screwdriver, turn the Mic Gain pot clockwise to

increase the gain (or counter-clockwise to decrease the gain).

Clear-Com Setup

Make the following switch and jumper changes when the beltpack is used with Clear­Com equipment

BP-1002/2002

> SW1 must be placed in the UNBAL position.

TABL E 2 . Internal Switches and Jumpers

Jumper/

Switch

Number

Power Select

JP1 and JP2

SW1

JP3 Must be left on default

JP5 Pins 1 & 2 shorted

Channel one power: pins 2 & 3 shorted
(On BP-1002, pins 2 & 3 are always shorted)

Channel two power: pins 1 & 2 are shorted

Clear-Com/Audiocom

Unbalanced/Balanced Line

Jumper or Switch Function

10

Default
Setting

Pins 2 & 3
are shorted

BAL

Pins 2 & 3
shorted

Pins 1 & 2
shorted

Connector Pin Configurations

Headset Connector

Type: XLR-4M (Callout in Figure 1)

Pin 1 Headset Microphone Low

Pin 2 Headset Microphone High

Pin 3 Headphone High

Pin 4 Headphone Low

Intercom Channel Connectors

BP-1002

Type: One XLR-3M and XLR3-F pair (callout 8 in Figure 1)

Audiocom Mode (internal switch SW1 set to BAL position)

Pin 1 Common

Pin 2 Intercom audio/call low and +24VDC input

Pin 3 Intercom audio/call high and +24VDC input

Clear-Com Mode (Internal switch SW1 set to UNBAL)

Pin 1 Common

Pin 2 +30VDC input

Pin 3 Intercom audio/call signal

BP-2002

Type: One XLR-6M and XLR-6F pair (callout 7 in Figure 1)

Audiocom Mode (internal switch SW1 set to BAL position)

Pin 1 Common

Pin 2 Local Power (21-30VDC)

Pin 3 Channel A intercom audio/call low and +24VDC input

Pin 4 Channel A intercom audio/call high and +24VDC input

Pin 5 Channel B intercom audio/call low and +24VDC input

Pin 6 Channel B intercom audio/call high and +24VDC input

Clear-Com Mode (internal switch SW1 set to UNBAL position)

Pin 1 Common

Pin 2 Local Power (21-30VDC)

Pin 3 Channel A +30VDC input

Pin 4 Channel A intercom audio/call signal

Pin 5 Channel B +30VDC input

Pin 6 Channel B intercom audio/call signal

Operation

11

Operation

Specifications

General

Power Requirements:

Channel Supplied: 24VDC nominal, 40 to 100mA

Local Power: 24VDC nominal (21 to 30VDC), 40 to 100mA

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

Dimensions: 5.0” (127mm) H x 3.5” (88.9mm) W x 1.8” (45.7mm) D

Weight: 13oz. (0.36kg)

Interface Requirements

Headset:

1000-3000 Ohm electret microphone

50-200 Ohm dynamic microphone

150-600 Ohm headphones

Input Level:

4mV

RMS (nominal)

Balanced Intercom Channel:

Output Level: 1 V

Terminating Impedance: 300 Ohm ±10%

Bridging Impedance: greater than 10,000 Ohm

Call Signaling

Send: 20kHz ±100Hz, >500mV

Receive: 20kHz ±800Hz, 100mVRMS (minimum)

Mic-Off Frequency

Detect: 24kHz ±800Hz, 100mV

Noise Contribution: less than -60dBu on the line

Total Harmonic Distortion: less than 1% at channel output for normal input

Unbalanced Intercom Channel:

Output Level: 775mV

Terminating Impedance: 200 Ohm ±10%

Bridging Impedance: greater than 10,000 Ohm

Call Signaling

Send: 12 ±3VDC on the line

Receive: 4 -15VDC from the line

Total Harmonic Distortion: less than 1% at channel output for normal input

RMS nominal

RMS

RMS (minimum)

RMS ±10%

12

Operation

Headphone Amplifier

Maximum Output:

3.5 ±10% Vrms into 150Ω headset

Frequency Response:

200Hz to 8kHz ±2dB

Audible Alert:

1kHz, at the headset

Total Harmonic Distortion:

Less than 1% at less than 3.25V

Sidetone:

17dB minimum range, adjustable

RMS into 150Ω headset

Optional Football Modifications

General Description

In Audiocom Intercom Systems, the Mic Kill feature is used to turn off any activated
microphone on a selected channel. The Mic Kill feature is activated when the
beltpack receives a 24kHz 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-1002/2002,
by removing a surface mounted capacitor from the printed circuit board.

To remove the capacitor, do 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 C61 on the underside of the printed circuit

board.

3. Remove capacitor C61 from the printed circuit board.

Restoring Mic Kill and Call Signal

13

Operation

To restore the Mic Kill and Call Signal feature, replace C61 with Bosch part number
F01U143777, 1500pF, 50V capacitor.

FIGURE 3. Printed Circuit Board

14

Notes

Operation

15