Clear-Com WBS Bedienungsanleitung

Operating Instructions: CLEAR-COM WBS/WTR Wireless Intercom System

CLEAR-COM LIMITED WARRANTY

Clear-Com products are warranted to be free from defects in materials and workmanship for a

period of one year from date of sale.

Clear-Com's sole obligation during the warranty period is to provide, without charge, the parts

and labor necessary to remedy covered defects appearing in products returned prepaid to

Clear-Com, 945 Camelia St., Berkeley, Ca 94710-1484, U.S.A.

This warranty does not cover any defect, malfunction or failure caused beyond the control of

Clear-Com, including unreasonable or negligent operation, abuse, accident, failure to follow

instruction in the Manual, defective or improper associated equipment, attempts at modification

and repair not authorized by Clear-Com and shipping damage. Products with their serial

numbers removed or defaced are not covered by this warranty.

To obtain warranty service, follow the procedures described below in "Procedures for Returns"

and "Shipping to Manufacturer for Repair or Adjustment."

This warranty is the sole and exclusive express warranty given with respect to Clear-Com

products. It is the responsibility of the user to determine before purchase that this product is

suitable for the user's intended purpose.

Any and all implied warranties, including the implied warranty of merchantability are limited to

the duration of this express limited warranty. Neither Clear-Com nor the dealer who sells

Clear-Com products is liable for incidental or consequential damages of any kind.

P/N 810065 Rev. B

Clear-Com Systems

929 Camelia St.

Berkeley, Ca 94710

U.S.A.

Operating Instructions: CLEAR-COM WBS/WTR Wireless Intercom System

While Clear-Com makes every attempt to maintain the accuracy of the information contained in its product

manuals, that information is subject to change without notice

Return Shipping Instructions

Procedures for Returns:

!If repair is necessary, contact the dealer where the unit was purchased.

!If repair through the dealer is not possible, contact the Clear-Com Customer Service

Department, located at the factory, as directed below. They will issue a Return

Authorization Number (RMA).

!Do not return any equipment to the factory without first obtaining a Return

Authorization Number.

!Be prepared to provide your company's name, address, phone number, name of

person to contact regarding the repair, type and quantity of the equipment,

description of the defect and the equipment serial number(s).

Questions regarding returns for repair should be directed to:

Customer Service Department

Clear-Com Intercom Systems

945 Camelia Street

Berkeley, California 94710-1484

Telephone: (510) 527-6666

Telefax: (510) 527-6699

Shipping to Manufacturer for Repair or Adjustment

All shipments of Clear-Com equipment must be prepaid via United Parcel Service or the best

available shipper. The equipment should be shipped in the original packing container; however, if

the original container is not available, use a suitable container that is rigid and of adequate size. If

a substitute container is used, the equipment should be wrapped in paper and surrounded with at

least four inches of excelsior or similar shock-absorbing material. All shipments should be

directed to the attention of the Customer Service Department and must include the Return

Authorization Number.

Upon completion of repairs, equipment will be returned collect via United Parcel Service or other

specified shipper.

NOTICE ABOUT SPECIFICATIONS

Operating Instructions: CLEAR-COM WBS/WTR Wireless Intercom System

Performance specifications included in this manual are design-center specifications and are

included for customer guidance and to facilitate system installation. Actual operating performance

may vary.

BEFORE YOU BEGIN . . .

To get the most out of the Wireless Intercom System, read this manual carefully. It will answer

questions you might have about the operation and service of the components in the system.

Clear-Com's Customer Service Department is available to answer questions not covered in this

manual.

A NOTE TO CLEAR-COM USERS

This manual will acquaint you with the operation and care of your Clear-Com wireless intercom

system. To help assure years of satisfaction and reliability, please read it carefully and follow the

recommendations.

Upon receiving your shipment, verify that you have received the number of boxes marked as

shipped on the freight receipt. Also, check immediately for box damage that may have occurred

during shipment. Notify the dealer and the freight carrier if you discover damages or losses, so

claims may be expedited, Carefully unpack the units. We recommend you save the shipping

cartons; they are useful for later reshipping.

Should you ever require service, the Clear-Com factory and your authorized Clear-Com service

center knows your equipment best and has the training and test equipment needed to restore

equipment to peak performance. Please feel free to contact your Clear-Com dealer or the

Clear-Com factory for assistance at any time.

Thank you for selecting Clear-Com products. We assure you of our continuing interest in your

satisfaction

INTRODUCTION

This manual describes the setup, adjustment and operation of Clear-Com's Model WBS-6A

Wireless Intercom Base Station and the model WTR-2 (portable) Wireless Remote Transceiver

(NOTE: The terms portable, beltpack and WTR-2 are used interchangeably). If you have

operational questions not covered in this manual, please consult your dealer or the Clear-Com

factory.

Operating Instructions: CLEAR-COM WBS/WTR Wireless Intercom System

The WBS-6A Base Station operates from a 115/230 Volt, 50/60Hz AC power mains or from an

external source of 12-18V DC (via the rear panel terminal strip). The WBS-6A supports up to six

WTR-2 wireless beltpacks with or without the interface to a Clear-Com wired intercom system.

The WBS-6A provides one Receive antenna connection and one Transmit antenna connection.

Whip antennas are supplied, but for optimum performance we recommend use of dipole antennas

(Clear-Com Model WDA-1).

Clear-Com offers a variety of headsets for use with the WBS-6A system (Consult your Clear-Com

dealer or the Clear-Com factory for more information). Both the WBS-6A Base Station and the

portable WTR-2 remotes are compatible with standard Clear-Com headsets (See: Setup and

Operation section for details on headset compatibility).

The wireless remote WTR-2 is a portable transceiver designed for use with the WBS-6A Base

Station. In the standard configuration it provides full-duplex, hands-free communication between

a roving user and the base station. The base station's circuitry extends the communication link to

other wireless users sharing the WBS-6A, as well as, to wired intercom users via the intercom

interface. Other modes of portable transceiver operation are: push-to-mute (transmitter remains

on, incoming audio is continuous until interrupted by pressing mute switch) and

push-to-transmit or push-to-talk (transmitter and incoming audio are both off, except when

talk switch is pressed).

The WTR-2 requires two 9-volt batteries. Quality alkaline batteries (such as the Duracell MN1604

or Eveready Energizer No. 522) provide eight to ten hours of continuous operation, with the

transmitter on continuously. You may also use rechargeable 9-volt batteries, provided they are

true 9-volt designs, such as the Varta (NOTE: most 9-volt ni-cad batteries are really 7.2-volt

designs and provide very short service life). Even with quality, true 9-volt rechargeable batteries,

operating life is much shorter than with alkaline batteries, usually 3 to 4 hours and recharging a

9-volt ni-cad battery requires up to 15 hours. An industrial grade rechargeable power pack is also

available. This requires a small modification to the WTR-2 beltpack and a special charger (for

more information contact your dealer).

BASE STATION CONFIGURATION

The WBS-6A consists of up to six receiver modules (one per beltpack), one transmitter module

(one per system), the receiver muticoupler, the power supply subassembly and the main audio

board. This audio board contains the receiver and transmitter interface circuits, control switching

and logic, link circuits and the interface to a wired intercom system.

Though the WBS-6A Base Station can be equipped with modules to support up to six wireless

beltpacks, your system may be equipped for less. You can check for this by examining the serial

number/frequency-assignment label on the back of the unit.

Operating Instructions: CLEAR-COM WBS/WTR Wireless Intercom System

The Base Station uses up to six different receive frequencies, one for each WTR-2 supported. It

provides a common transmit frequency for all WTR-2's in the system. Audio signals from the six

receivers, the front panel headset, the link input (if active) and incoming intercom voice are

summed and applied to the transmitter. As a result, the beltpack users can hear all system voice

signals (including their own). In a similar manner, all audio sources except incoming intercom

drive the intercom output, and all sources except link in drive the link output. This type of

arrangement essentially configures the WBS-6A and portables as a party-line system, similar to

wired intercom systems.

WBS-6A CONTROLS AND INDICATORS

The WBS-6A Base Station provides several controls and connectors. All switches and level adjust

pots used during operation are located on the unit's front panel. Some auxiliary switches are on

the base station's rear panel. Internal adjustments are pre-set at the factory for optimal

performance.

Front Panel control and connector functions (see Figure 1) are:

I HEADSET CONNECTOR: Accepts the system monitor/operator headset.

II VOL: Local headset-volume control.

III MON SELECT SWITCH: 9-position rotary, enabled when (LOCAL) HEADSET

push-button is out.

IV MODE PUSH-BUTTONS: ENABLE switches for beltpacks 1 through 6 and for

the wired Clear-Com intercom system.

V ACTIVE LEDS (R1-R6): Indicates an RF signal is being received by base station.

VI ACTIVE I/C LED: Indicates wired Clear-Com intercom is active.

VII TRANSMIT LED: Indicates base station transmitter is active.

VIIIRECEIVE LEVEL: Six audio receive level potentiometers for beltpacks 1 through

IX POWER ON/OFF SWITCH: Activates unit.

X LOCAL HEADSET ON/OFF SWITCH: Activates headset and mic.

Operating Instructions: CLEAR-COM WBS/WTR Wireless Intercom System

Figure 1

THE RECEIVE LEVEL (H) Controls allow convenient level trimming of the audio from each

portable. Typically, you will use them to balance audio levels when a person with a soft voice uses

one of the beltpacks.

THE ENABLE CONTROLS (D) Lets the operator enable/disable the audio from one or more

WTR-2 and the wired Clear-Com line. Typical use is to disable the internal base station receive

modules if the number of beltpacks is less than the number of receive modules or if a portable

goes out of range.

THE ACTIVE LEDS (E) Indicate that an RF signal is being received from the associated

beltpack. These LEDs illuminate, regardless of whether or not the channel has been enabled with

the associated enable switch.

THE LOCAL HEADSET SWITCH (K) When in, activates the local headset mic and lets the

headset function as an operating position. When out, the headset mic is disabled and the earpiece

is connected to the MON SEL switch (C). This rotary switch allows monitoring of:

!The entire system --ALL, or

!Each individual portable receiver separately --R-1 through R-6 or

!The wired intercom only --I/C, or

!The link only --LINK.

Receivers may be monitored whether or not they are enabled with their associated enable switch

(D). This LOCAL HEADSET switch is useful for system trouble-shooting, particularly while

the system is up and running without unnecessary disruption of communications.

REAR PANEL CONTROL AND CONNECTOR FUNCTIONS ARE:

I TX ANT: BNC connector for transmit antenna.

Operating Instructions: CLEAR-COM WBS/WTR Wireless Intercom System

II SCREW TERMINAL: Screw-type terminal strip for connecting 12 to 18 volts DC

(current drain on a fully configured WBS-6A is approximately 600mA).

III IEC TYPE 320 - AC: Power cord receptacle.

IV INTERCOM CONNECTORS: One male 3-pin XLR and one female 3-pin XLR

(connected in parallel).

V TRANSMIT 3-POSITION SLIDE SWITCH: Center position disables transmitter;

continuous transmit in ON position; transmit when any receiver is active in PTT

position

VI LINK ON/OFF SWITCH: Enables/disables link input/output.

VII LINK CONNECTORS: Male and female 3-pin XLRs for link interconnect.

VIIIRX ANT: BNC connector for receiver antenna.

The link circuits can be used for connection to other audio gear, such as, console inputs and

outputs, external amplified mics, monitor speaker/amplifiers, off-air monitor receivers, etc.. The

interface level is nominal 0 dBm with the input gain internally adjustable over a 20 dB range

(approximate).

WTR-2 WIRELESS BELTPACK

The WTR-2 Beltpack is easy to use and includes just two operating controls: A headset volume

control that also incorporates the on/off switch and a 3-position (latching/off/momentary) audio

control switch.

To adjust the mic gain, access the gain control near the top edge (control panel) of the transmitter

board, through the small hole in the side of the WTR-2 chassis. Accurate adjustment usually

requires use of a deviation meter or service monitor. However, minor adjustments can be made

by comparing audio levels from two different portables via the base station monitor circuits.

Always be sure that the gain is set while using the same type of headset that will be used with the

transceiver.

NOTE: The WTR-2 Beltpack has an audio compressor similar to those used in wired intercom

remote units. Thus, it is possible to set the gain too high, resulting in an increase in background

noise when the user is silent and in "pumping" of the compressor when the user is talking. Do

not set the mic gain higher than necessary to achieve adequate volume at the base station.

If you use a deviation meter, adjust the mic gain control for 3.5 to 4 kHz deviation at normal user

speech levels.

There are no user-adjustable controls on the WTR-2 receiver PCB; missadjustment could lead to

an expensive, time-consuming return to an authorized service location or to the factory.

Operating Instructions: CLEAR-COM WBS/WTR Wireless Intercom System

The WTR-2 includes a small power on LED indicator near the volume control. Unless the user

has selected the PTT mode, the illuminated LED shows that the transmitter is operating.

SETUP AND OPERATION OF WTR-2 BELTPACK

Setup and operation of the system is quite simple. For the beltpacks, simply install two 9-volt

batteries, plug in the headset and turn on the unit. The portable transceiver has only two

operating controls, a combined on/off/headset volume control and an audio control switch

(3-position rocker: locking, off and momentary).

INSTALLING BATTERIES

Install the batteries in bottom of the WTR-2. We recommend heavy-duty alkaline batteries such

as Duracell MN1604 or Eveready Energizer No. 522. Unscrew the captive screw on the cover to

access the battery compartment.

Install the two batteries with the positive (+) smaller terminal towards the center of the WTR-2

and oriented towards the shiny metal battery contacts. Be sure the battery removal straps are

positioned correctly alongside the batteries to facilitate easy removal.

Replace the battery cover. Be sure the removal tabs are folded over the top of the batteries, out of

the way of the cover.

NOTE: The battery compartment is keyed to resist incorrect installation of the batteries. Unless

excessive force is used, it is not possible to install batteries incorrectly. If the batteries do not fit

easily, DO NOT FORCE THEM. Check the orientation of the battery terminals and correct

any misalignment, then try again.

SETTING TALK/LISTEN CONFIGURATION

The function of the audio control rocker switch is internally programmable to any of three modes.

It is factory-preset for PUSH-TO-ENABLE mode (transmitter remains on; audio is off until

the switch is pressed). The other modes are:

PUSH-TO-MUTE (transmitter remains on; audio is continuous until interrupted by pressing

the switch). This mode lets the user cancel transmitted audio during a cough or during a local

conversation, while continuing to transmit an unmodulated signal (to override weaker interfering

signals that might be received at the master station;

PUSH-TO-TALK or PTT (transmitter and audio are both off until the switch is pressed). This

mode allows simplex communications between an unlimited number of beltpacks without a base

station (a.k.a. PUSH-TO-TRANSMIT). It can also be used when more than one beltpack is

required on an assigned frequency of the WBS-6A.

Operating Instructions: CLEAR-COM WBS/WTR Wireless Intercom System

The use of the push-to-talk mode is not recommended for normal applications due to the high

sensitivity of the system receivers (which often results in very noisy system output). Typical

sources of interfering signals include spurious outputs from poorly adjusted two-way radio

transmitters; harmonic output from FM radio transmitters; radiated harmonic energy from clock

signals in computers and digital equipment; leakage from CATV/MATV systems; and

inadequately shielded RF test equipment.

PROGRAMMING

Programming for different modes is done via push-on jumpers located on the WTR-2 transmitter

PC board. To re-program:

I Remove the WTR-2 from the case. Detach the battery cover and remove the two

9-volt batteries (if installed). Remove the four small Phillips-head screws on the

bottom of the unit and carefully slide the internal chassis out of the case.

II Locate the push-on jumpers on the transmitter PC board (this PC board is the one

which has the connections to the headset connector and the audio control switch).

The jumpers are located just behind the switch connector (P2), near the battery

terminals.

III Set the CONT/PTT jumper as required (normally to the "CONT"-inuous position).

In the CONT position, the transmitter is on at all times when the WTR-2 is powered;

in the PTT position the transmitter is on only when the audio control switch is

pressed.

IV Likewise, set the PT/PM jumper to the appropriate position. In the PT position,

the audio is enabled whenever the audio control switch is pressed. In the PM

position, the audio is muted whenever the switch is pressed.

NOTES: The push-to-mute (PM) and push-to-talk (PTT) modes cannot be used together, since

no audio would ever be transmitted.

The push-to-mute and the push-to-talk modes do not lend themselves to locking switch operation

as provided by the 3-position rocker switch. An optional momentary-only push-button switch is

available as a replacement for the rocker in these special applications. Contact the factory for

details.

SETUP AND OPERATION OF WBS-6A BASE STATION

The base station is equipped with removable rack-mount ears, so it can be set up as a desktop unit

or in a rack. If you choose rack-mounting, install the accessory ears onto the chassis.

For rack-mount installations, external antennas (WDA-1) are recommended. For desktop use, the

supplied whip antennas are satisfactory, though the level of performance will be lower. For best

Operating Instructions: CLEAR-COM WBS/WTR Wireless Intercom System

range and performance, we recommend using separate dipole antennas (Clear-Com model

WDA-1) for the base station's transmit and receive sections. Orient the antennas vertically and set

them up as far apart as possible in an uncluttered place. Use Velcro or tie wraps to mount the

antennas and avoid mounting them with or near anything metal.

After the system is up and running, you can fine-tune the antenna placement. If you need to

extend the antennas farther than the cable permits, contact your Clear-Con dealer for

recommended cable extensions.

After you mount the base station and connect the antennas, plug in the AC power cord and the

Clear-Com intercom cable(s).

If you do not plan to use the link, disable the circuits with the link on/off switch. If the link is to

be used, connect the base station to the external audio equipment (console, etc.) or to a second

(slave) base station with standard, 2-conductor shielded mic cable.

Select the transmitter mode with the rear panel TRANSMIT switch. The ON (continuous)

mode is used normally but use the PTT mode if the base station will be left powered when the

system is not in use. This mode automatically shuts down the WBS-6A transmitter when no

beltpacks are transmitting back to it.

Power up the base station and all beltpacks. Enable the active beltpacks via the ENABLE

pushbuttons on the WBS-6A front panel; disable unused channels to avoid possible interference.

Also, enable the wired intercom if one is connected. At this point the front panel LEDs for all

selected beltpacks, the power LED, TX LED and I/C LED should all be illuminated.

Plug a headset into the base station front panel and select the LOCAL HEADSET mode (push

button in). This allows 2-way communications with the beltpacks and the wired intercom during

setup.

If necessary, adjust the audio levels from each beltpack with the RECEIVE LEVEL controls on

the WBS-6A, while each user talks. Normal position for those controls is mid position (12

o'clock). Each control allows 12dB gain adjustment; bring audio levels up or down (+ or -6dB) as

necessary.

If necessary (to locate a noise problem), select the MON function (LOCAL HEADSET switch

out) to individually monitor the I/C, link and wireless beltpacks. Also, use this mode to turn off

the headset mic during system operation to prevent pickup of extraneous noise.

The wireless intercom system should now be fully operational.

HEADSET COMPATIBILITY

In the normal factory configuration, the WTR-2 and WBS-6A are compatible with standard

Clear-Com headsets that have 4-pin XLR connectors. These headsets feature 200-ohm receivers

and low-impedance dynamic microphones.

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