Clear-Com WTR-680 User Manual

Op er ating In struc tions

Intercom Systems

WBS-680, WTR-680, WTR-682

Pro fes sional Wire less In ter com Sys tem

Thank you for choos ing Clear-Com

Clear-Com In ter com Systems would like to take this op por tu nity to thank you for choos ing the Clear-Com WBS-680 Pro fes sional Wire less In ter com Sys tem. Many of the fea tures in this prod uct are the re sult of years of de vel op ment work with many of the fea tures de vel oped from cus tomer feed back. We hope that your ex pe ri ence

with this prod uct is a pleas ant one and hope to pro vide you with a con tin u ing line of Clear-Com prod ucts well into the fu ture. In or der to get the most out of your new wire less in ter com sys tem, please take a few mo ments to look through this book let be fore us ing the prod uct for the first time.

Clear-Com In ter com Systems

Ta ble of Con tents

In tro duc tion ..........................................................................1 -1

Gen eral De scrip tion ..........................................................................1 -1

Sys tem Fea tures .............................................................................1-1

WBS-680 Block Di a gram .....................................................................1-2

WBS-680 Base Sta tion ..................................................................2-1

Con trols and Con nec tions - Front Panel ..........................................................2-1

Con trols and Con nec tions - Rear Panel ...........................................................2-2

WBS-680 Spec i fi ca tions ......................................................................2-3

WTR-680 Beltpack.....................................................................3-1

Con trols and Con nec tions - Top Panel............................................................3-1

Con trols and Con nec tions - Rear Panel ...........................................................3-2

WTR-680 Spec i fi ca tions ......................................................................3-3

WTR-682 Beltpack ....................................................................4-1

Con trols and Con nec tions - Top Panel............................................................4-1

Con trols and Con nec tions - Rear Panel ...........................................................4-2

WTR-682 Spec i fi ca tions ......................................................................4-3

Ini tial Equip ment Set-Up ...............................................................5-1

Un packing .................................................................................5-1

An tenna Con nec tions.........................................................................5-2

An tenna Po lar iza tion .........................................................................5-2

Dis tance Be tween An tennas ...................................................................5-2

An tenna Place ment ..........................................................................5-2

Im proving Re cep tion/In creasing Range ..........................................................5-4

Base Sta tion Set-Up .........................................................................5-5

Lo ca tion ...............................................................................5-5

Power Con nec tion........................................................................5-5

Trans mit Switches........................................................................5-5

In ter nal Trans mit Switches .................................................................5-6

In ter com Switch .........................................................................5-6

In ter com In ter face........................................................................5-6

Dual Lis ten Func tion al ity ..................................................................5-7

Aux il iary In put/Out put ....................................................................5-8

In ter nal Aux il iary In put Routing Switch ......................................................5-8

Stage An nounce /Re lay Con tacts ............................................................5-9

Base Sta tion Link .......................................................................5-10

Beltpack Set-Up ...........................................................................5-11

Bat tery In stal la tion ......................................................................5-11

An tenna Con nec tion .....................................................................5-12

Trans mit Mode .........................................................................5-12

Head set Con nec tion .....................................................................5-12

Pre-Walk-Thru Check list ...............................................................6-1

Sys tem Op er a tion ......................................................................7-1

Fre quency Plan Over view .....................................................................7-1

Fac tory-Defined Group .......................................................................7-1

User-Programmable Groups ...................................................................7-1

Sys tem Quick Start ..........................................................................7-1

Base Sta tion Op er a tion ......................................................................7-2

Power .................................................................................7-2

Lo cal Head set ...........................................................................7-2

Por ta ble Sta tion Con nect ..................................................................7-2

In ter com A and B ........................................................................7-2

Aux il iary...............................................................................7-2

Dis play Con trast .........................................................................7-3

WBS-680 Menu Struc ture ................................................................7-4

Main Screen Flowchart .................................................................7-4

Power-Up Screen ......................................................................7-5

Op er ating Screen ......................................................................7-5

Beltpack Ac tiv ity Code Def i ni tions ........................................................7-5

Group/Chan nel Se lect ..................................................................7-6

Group/Fre quency Se lect.................................................................7-7

Fre quency Edit .......................................................................7-8

Scan ................................................................................7-9

Spe cial Key Se quences ................................................................7-10

Lock out .........................................................................7-10

Copy ...........................................................................7-10

1st Use De fault ...................................................................7-10

Fac tory De fault ...................................................................7-10

-i-

Ta ble of Con tents (con tin ued)

WTR-680 Beltpack Op er a tion ...............................................................7-11

Power/Lo cal Head set Vol ume..............................................................7-11

Bat tery Check ..........................................................................7-11

Talk But ton ............................................................................7-11

Mi cro phone Gain .......................................................................7-11

Chan nel Se lect But ton ...................................................................7-11

Stage An nounce (SA) ....................................................................7-11

Wire less Talk Around (WTA)..............................................................7-11

WTR-680 Beltpack Menu Struc ture .......................................................7-12

Power-Up Screens ....................................................................7-13

Group/Chan nel Screen .................................................................7-14

Trans mit Screen ......................................................................7-15

Re ceive 1 Screen .....................................................................7-16

Re ceive 2 Screen .....................................................................7-17

ClearScan™ .........................................................................7-18

Fea ture En able/Dis able Menus ..........................................................7-19

Stage An nounce En able/Dis able .........................................................7-19

Wire less Talk Around En able/Dis able .....................................................7-19

Au dio Chan nel A or B En able/Dis able ....................................................7-20

Talk But ton Latch on/Latch off ..........................................................7-20

Spe cial Key Se quences ................................................................7-21

Lock out .........................................................................7-21

1st Use De fault ...................................................................7-21

Fac tory De fault ...................................................................7-21

WTR-682 Beltpack Menu Struc ture .......................................................7-22

Power-Up Screens ....................................................................7-23

Group/Chan nel Screen .................................................................7-24

Trans mit Screen ......................................................................7-25

Re ceive 1 Screen .....................................................................7-26

Re ceive 2 Screen .....................................................................7-27

Au dio Out put ........................................................................7-28

Scan ...............................................................................7-29

Fea ture En able/Dis able Menus ..........................................................7-30

Stage An nounce En able/Dis able .........................................................7-30

Wire less Talk Around .................................................................7-31

Au dio Chan nel A Op tions ..............................................................7-32

Au dio Chan nel B Op tions ..............................................................7-33

Spe cial Key Se quences ................................................................7-34

Lock out .........................................................................7-34

1st Use De fault ...................................................................7-34

Fac tory De fault ...................................................................7-34

Sys tem Walk-Thru.....................................................................8-1

Trou ble Shoot ing ......................................................................9-1

Tech Tips ............................................................................10-1

Fre quency In ter ac tion .......................................................................10-1

Mi cro phone Gain Ad just ment .................................................................10-1

Bat tery In for ma tion ...................................................................11-1

In ter com Sys tem Spec i fi ca tions .........................................................12-1

Ac ces sories and Re place ment Parts ......................................................13-1

Cus tomer Ser vice In for ma tion ..........................................................14-1

FCC In for ma tion .....................................................................15-1

Limited Warranty ....................................................................16-1

-ii-

Section

In tro duc tion

Gen eral De scrip tion

The Clear-Com WBS-680 UHF Syn the sized Wire less in ter -- com sys tems of fer the ul ti mate in re li able, high-performance, high-fidelity full-duplex com mu ni ca tions.

The WBS-680 sys tem in cludes the WBS-680 fre quency ag ile base sta tion, work ing with up to four WTR-680 or WTR-682 fre quency ag ile beltpacks. The WBS-680 base sta tion pro -- vides full-duplex com mu ni ca tions with the beltpacks.

The BTR sys tem in cor po rates two au dio chan nel op er a tion, per mit ting the beltpack op er a tor to choose be tween two sep a -- rate au dio chan nels of com mu ni ca tions, with the base sta tion track ing the beltpack se lec tion. This al lows the user the flex i -- bil ity to cre ate a party-line and a pri vate line within the same beltpack.

The WBS-680 sys tem is per fectly suited for stand-alone op er -- a tion and also can in ter face with Clear-Com, Audiocom® (Telex), RTS® TW, as well as Clear-Com MA TRIX PLUS® sys tems and other 4-wire com mu ni ca tions sys tems. In ad di tion to the ex ter nal in ter com sys tems in ter faces listed above, the sys tem pro vides con nec tions for aux il iary bal anced au dio in -- put and out put, as well as wire less talk-around (WTA) and stage an nounce (SA) fea tures.

The Clear-Com WBS se ries has been de signed for re li able, ef -- fi cient op er a tion. Op er ating in the 518 to 740 MHz range, the units op er ate re li ably at line-of-sight dis tances of 1,000 feet. With op tional ex ter nal antenna sys tems, the ef fec tive op er at -- ing range can be ex tended. The high-efficiency beltpacks pro -- vide up to 12 hours of un in ter rupted op er a tion us ing stan dard al ka line bat ter ies.

Sys tem Fea tures

Fre quency-agile base sta tion and beltpacks. No ex ter nal

•

com puter/de vice re quired to se lect fre quen cies.

Backlit base-station LCD al lows the user to eas ily mon i -

•

tor the beltpack’s sta tus as well as change base-station fre quen cies.

ClearScan™ func tion on base sta tion and beltpack to au -

•

to mat i cally find the best chan nels on which to op er ate.

Full-duplex (si mul ta neous talk and lis ten) op er a tion.

•

Com pat i ble with Clear-Com, Audiocom® (Telex), RTS

•

TW, MA TRIX PLUS®, and other wired in ter com types.

Two chan nels of in ter com au dio.

•

WTA (Wire less Talk Around) beltpack con trol. This fea -

•

ture al lows beltpacks to talk to each other, but their au dio is lifted from any wired sys tem con nected to the base sta tion.

SA (Stage An nounce) beltpack con trol. Al lows the user to

•

di rect their au dio to a jack on the back of the base for P.A. sys tems or other ex ter nal au dio sys tems.

Re lay con tact clo sure on the base when the SA but ton is

•

pressed.

WTR-682 fea tures two-audio-channel bin au ral op er a tion

•

in ei ther ste reo or mono mode.

Beltpack units con tained in a weather and shock re sis tant

•

die cast mag ne sium case.

Con ve nient IEC power con nec tor on the base sta tion so

•

the unit can plug di rectly to out lets. No in-line or wall plug power sup ply.

Base sta tion co mes with rack ears for easy rack mount ing.

•

Clear-Com® and MA TRIX PLUS® are reg is tered trade marks of Clear-Com In ter com Sys tems, Inc. RTS® and Audiocom® are reg is tered trade marks of Telex Com mu ni ca tions, Inc.

1-1

margaiD kcolB 086-SBW

1-2

Con trols and Con nec tions - Front Panel

TALK

Gain

Volume

SELECT

On/off

Out

AUXILIARYINTERCOM B

2-Wire

4-Wire

Select

Out

2-Wire

4-Wire

Select

Out

INTERCOM A

BELTPACK CONNECT

1 2

Down

Set

Clear-Com

SCAN

Copy

WBS-680

(1) Microphone Shield (-)

(2) Microphone Audio (+)

(3) Headphone High (+)

(4) Headphone Low (-)

WBS-680 - Front Panel

Section

WBS-680 Base Sta tion

Fig ure 1

1. Power switch.

2. [Menu] and [Set] but tons – Used to se lect menus and set

op tions on the LCD.

3. Backlit Graph ics LCD (Liq uid Crys tal Dis play).

4. [Up] and [Down] but tons – Used to se lect base sta tion

op tions on the LCD.

5. Por ta ble Sta tion Con nect – But tons used to en able or dis able the re spec tive re ceiver’s au dio. GREEN LED = Au dio en abled, LED OFF = Au dio dis abled.

6. In ter com A Con trols - Wired in ter com A in ter face con trols. Au dio in put and out put level con trols. 2-wire or 4-wire se lect but ton with green LED in di ca tor lights. Se lected LED will change to RED if the in put lev els are too high.

7. In ter com B Con trols - Wired in ter com B in ter face con trols. Au dio in put and out put level con trols. 2-wire or 4-wire se lect but ton with green LED in di ca tor lights. Se lected LED will change to RED if the in put lev els are too high.

11. Tal k /Overmod Light – LED is green when talk but ton #13 is ac tive. A nor mal mic gain set ting will cause the LED to flash red on the loud est speech lev els. If the gain is too high, the LED will be red at nor mal speech vol umes.

12. Mi cro phone Gain – Ad justs the head set’s mi cro phone gain. Ad justs so that the overmod light #11 flashes from green to red on loud est speech.

13. Talk But ton – Press to en able the au dio path from the lo cal head set. LED #11 will turn green when en abled. A quick press and re lease latches but ton on. If the talk func tion is latched on, press ing the talk but ton again will turn it off.

14. Lo cal Head set Con nec tor – Male XLR con nec tor. A dy namic or electret head set mi cro phone is au to mat i cally de tected.

8. Aux il iary Con trols - Wired aux il iary in ter face con trols. Au dio in put and out put level con trols. GREEN LED = Aux. in put en abled. LED will change to RED if the in put lev els are too high.

9. Head set Vol ume – Con trols the vol ume to the head set con nected to #14.

10. Head set In ter com Se lect – Con trols the in ter com to which the lo cal head set is con nected. Each press of the but ton changes the con nec tion; chan nel A, chan nel B, both.

Fig ure 2

Lo cal Head set Wiring

2-1

Con trols and Con nec tions - Rear Panel

PUSHPUSHPUSH

RECEIVE

HIGH

NORM

OFF

TRANSMIT POWER

I/C

TELEX CLEAR-COM

RTS

BASE STATION

LINK

RELAY

CONTACT

INTERCOM A

2-WIRE

L O O P

T H R U

4-WIRE

INTERCOM B

2-WIRE

L O O P

T H R U

4-WIRE

AUXILIARY AUDIO

INPUT OUTPUT

STAGE ANNOUNCE

OUTPUT

POWER

100-240 VAC 50-60 Hz

TRANSMIT

MADE IN USA

WBS-680

FCC ID: B5DM514

CANADA 1321231218A

Intercom Systems

WBS-680 - Rear Panel

Fig ure 3

1. Re ceive An tenna - Fe male “TNC” Con nec tor. Color band

on an tenna must match color dot on base sta tion.

2. Trans mit Power Switch – HIGH = Trans mit ters at full power. NOR MAL = Trans mit ters 10dB be low full power.

3. Trans mit ON/OFF Switch – Turns the trans mit ters on or off.

4. I/C Se lect Switch – Set to the ap pro pri ate 2-wire in ter com

type be ing in ter faced to the unit. Set to ei ther Clear-Com, Telex, or RTS.

5. Base Sta tion Link Jack – When two base sta tions are con nected through this jack, it al lows wire less talk around (WTA) from the beltpacks to be routed from the sys tem with it’s trans mit ters off to the sys tem with it’s trans mit ters on.

6. Re lay Con tact – A dry con tact clo sure which is ac ti vated when a beltpack user presses the stage an nounce (SA) but ton. Normally Open (NO). One amp at 24V max i mum.

7. In ter com A – In ter face to wired in ter com sys tem A.

2-Wire – Male and fe male 3-pin XLR con nec tors wired in par al lel. The con nec tors are switched to the ap pro pri ate in ter com con fig u ra tion via the I/C Se lect Switch.

8. In ter com B – In ter face to wired in ter com sys tem B.

2-Wire – Male and fe male 3-pin XLR con nec tors wired in par al lel. The con nec tors are switched to the ap pro pri ate in ter com con fig u ra tion via the I/C Se lect Switch.

4-Wire – An RJ-45 type jack com pat i ble with “Ma trix” type in ter com sys tems.

9. Aux il iary In put/Out put – One 3-pin fe male XLR in put con nec tor and one 3-pin male XLR out put con nec tor.

10. Stage An nounce Out put – Passes the au dio from any of the base sta tion’s beltpacks that have se lected stage an nounce (SA).

11. Power – IEC re cep ta cle. Ac cepts 100 – 240 VAC, 50 – 60 Hz.

12. Trans mit An tenna - Fe male “TNC” Con nec tor. Color

band on an tenna must match color dot on base sta tion.

4-Wire – An RJ-45 type jack com pat i ble with “Ma trix” type in ter com sys tems.

2-2

WBS-680

Spec i fi ca tions

Over all

RF Fre quency Range ......................518 - 608 MHz, 614 - 740 MHz in 18 MHz TX and RX bands

Power Re quire ments .......................................100-240 VAC, 50-60 Hz, IEC re cep ta cle

Tem per a ture Range ..............................................-4° F to 130° F (-20° C to 55° C)

Di men sions .............................19.00” W x 1.72” H x 14.00” D (48.3 cm x 4.4 cm x 35.6 cm)

Weight ...................................................................7 lbs 2 oz (3.24 kg)

TX An tenna .............................................½ Wave (sup plied), TNC Male Con nec tor

RX An tenna .............................................½ Wave (sup plied), TNC Male Con nec tor

FCC ID: .........................................................................B5DM514

Fre quency Re sponse..............................................................300Hz-8kHz

Four-Wire In put ................................................Level Ad just able (2 Vrms typ i cal)

Four-Wire Out put ...............................................Level Ad just able (2 Vrms typ i cal)

Clear-Com In ter com............... In put/Out put Level Ad just able (1 Vrms typ i cal), Line Im ped ance 200W

Telex In ter com....................In put/Out put Level Ad just able (1 Vrms typ i cal), Line im ped ance 300W

RTS In ter com .................In put/Out put Level Ad just able (0.775 Vrms typ i cal), Line Im ped ance 200W

Aux il iary In put ......................................................Ad just able (2 Vrms typ i cal)

Aux il iary Out put ............................................Ad just able (2 Vrms typ i cal into 600W)

Stage An nounce Out put ................In ternally Ad just able (2 Vrms typ i cal at rated de vi a tion into 600W)

Stage An nounce Re lay .......................................Dry con tact, rated at 1 Amp, 24V Max

Mi cro phone in put sen si tiv ity .............................................................9mV

Lo cal Head set Out put ......................................40mW out put into 600W (1% Dis tor tion)

Trans mit ter

Type .............................................Two Syn the sized Trans mit ters, 712 chan nels each

Trans mit Power (each trans mit ter) .............................100 mW Max. (High), 10 mW (Nor mal)

Mod u la tion Type........................................................................FM

De vi a tion ...........................................................................40 kHz

RF Fre quency Sta bil ity ................................................................0.005%

Mod u la tion Lim iter ................................................Peak-Responding Com pres sor

Ra di ated Har monics & Spu ri ous ........................................Ex ceeds FCC spec i fi ca tions

Re ceiver

Type..........Dual Con ver sion Super het ero dyne, four In de pend ent Syn the sized IFs, FM, 712 chan nels each

RF Sen si tiv ity........................................................<0.8 µV for 12 dB SINAD

Squelch Thresh old ..............................................................20 dB SINAD

IF Se lec tiv ity.................................................................3 dB at 230 kHz

Im age Re jec tion ...............................................................70 dB or better

Squelch Quieting......................................................................90 dB

RF Fre quency Sta bil ity ................................................................0.005%

Dis tor tion ...............................................................<1% at full de vi a tion

2-3

2-4 Blank

Con trols and Con nec tions - Top Panel

WTA

A B

CHANNEL

BAT/OM TALK

TALK

Vol

Off

Section

WTR-680 Beltpack

Fig ure 4

WTR-680 Top Panel

1. On/Off & Vol ume Con trol – Turns the beltpack power

on and con trols head set vol ume.

2. Wire less Talk Around (WTA) – When pressed, the user’s au dio is dis con nected from the wired in ter com, aux il iary in put/out put and the base sta tion’s lo cal head set. Other beltpack us ers, on that au dio chan nel, can hear the user as nor mal. The but ton ac ti vates the nearby red LED as well as the “TALK” LED, #6, when pressed.

3. Stage An nounce (SA) –When pressed, the user’s au dio is routed to the stage an nounce con nec tor on the back of the base sta tion. The user also loses their sidetone as an in di ca tion that stage an nounce is ac ti vated. The other wire less beltpacks and wired us ers do not hear the user’s au dio. The but ton is non-latching and ac ti vates the nearby red LED as well as the “TALK” LED, #6, when pressed.

4. Au dio Chan nel – Al lows user to se lect ei ther au dio chan nel A or B.

5. Bat/Overmod Light – Light will flash once when unit is turned on if the bat tery is good. If the light stays on, bat tery is low. If the light does not flash, bat tery is dead. A nor mal mi cro phone gain set ting will cause the LED to flash at the be gin ning of most words at nor mal speech lev els. If the gain is too high, the LED will be red dur ing the com plete word at nor mal speech lev els.

6. Talk Light – LED is on when the talk but ton, SA or WTA is ac tive.

7. Tal k But ton – Press to en able the au dio path from the lo cal head set mi cro phone. The “TALK” LED, #6, will turn red when en abled. A quick press and re lease latches the talk func tion, un less latch ing has been dis abled. Holding the but ton for over ½ a sec ond will cause the au dio path to be en abled only for as long as the but ton is held. If the talk func tion is latched on, press ing the talk but ton again will turn it off.

3-1

Con trols and Con nec tions - Rear Panel

SET

PT T

SET

PT T

(1) Microphone Shield (-)

(2) Microphone Audio (+)

(4) Headphone Low (-)

(3) Headphone High (+)

Fig ure 6

Head set Jack Wiring

WTR-680 Rear Panel/Con nec tor/An tennas

1. [MENU] and [SET] but tons – Used to se lect menus and

set op tions on the LCD.

2. LCD (Liq uid Crys tal Dis play)

3. [UP] and [DOWN] but tons – Used to se lect beltpack op -

tions on the LCD.

4. Mi cro phone Gain – Ad justs the head set’s mi cro phone gain. Ad just so that the BAT/OM LED will flash at the be gin ning of most words at nor mal speech lev els.

5. Push-to-Talk/Push-to-Transmit Switch –

Push-to-Talk (PT TALK) – The trans mit ter is al ways on. No au dio sent un less the talk switch, WTA or SA but ton pressed. Rec om mended po si tion.

Push-to-Transmit (PT TX) - The trans mit ter and au dio path are off ex cept when the talk switch, WTA or SA but ton is pressed.

Fig ure 5

6. Head set Con nec tor – Male XLR con nec tor. A dy namic or

electret head set mi cro phone is au to mat i cally de tected by the beltpack and a bias volt age sup plied if needed.

7. Bat tery Latch – Press down to en able the bat tery pack to be re leased. While the latch is held down, slide the bat tery pack about 1/8 inch back, to ward the latch, un til it stops. Then lift out.

8. Re ceive An tenna – Screw type ¼-wave re place able an tenna. The re ceiver an tenna is al ways the lon ger an tenna. Color dot on the screw end of the an tenna must match color dot on an tenna re cep ta cle.

9. Trans mit An tenna – Screw type ¼-wave re place able an tenna. Color dot on the screw end of the an tenna must match color dot on an tenna re cep ta cle.

3-2

WTR-680

Spec i fi ca tions

RF Fre quency Range ......................518 - 608 MHz, 614 - 740 MHz in 18 MHz TX and RX bands

Power Re quire ments........................................6 “AA” Cells Al ka line (NiMH op tional)

Cur rent Draw ...................................................140 mA (Push-to-Talk, Talk On)

Tem per a ture Range ..............................................-4° F to 130° F (-20° C to 55° C)

Di men sions .................................3.75”W x 5.05”H x 1.65” D (9.5 cm x 12.8 cm x 4.2 cm)

Weight ......................................................16 oz (454g) with al ka line batteries

TX An tenna ...........................................¼ Wave (sup plied), Screw type, Replaceable

RX An tenna ...........................................¼ Wave (sup plied), Screw type, Replaceable

FCC ID: .........................................................................B5DM515

Fre quency Re sponse..............................................................300Hz-8kHz

Mi cro phone in put sen si tiv ity .............................................................7 mV

Lo cal Head set Out put ......................................40 mW out put into 600W (1% dis tor tion)

Trans mit ter

Type ...............................................................Syn the sized, 712 chan nels

Trans mit Power ..............................................50 mW Max. (auto-power reduction)

Mod u la tion Type........................................................................FM

De vi a tion ...........................................................................40 kHz

RF Fre quency Sta bil ity ................................................................0.005%

Mod u la tion Lim iter ................................................Peak-Responding Com pres sor

Ra di ated Har monics & Spu ri ous ........................................Ex ceeds FCC spec i fi ca tions

Re ceiver

Type ...............................Dual Con ver sion Super het ero dyne, Syn the sized, FM, 712 chan nels

RF Sen si tiv ity........................................................<0.7 µV for 12 dB SINAD

Squelch Thresh old .................................................20 dB SINAD (About 1.0 µV)

IF Se lec tiv ity.................................................................3 dB at 230 kHz

Im age Re jec tion ...............................................................70 dB or better

Squelch Quieting......................................................................90 dB

RF Fre quency Sta bil ity ................................................................0.005%

Dis tor tion ...............................................................<1% at full de vi a tion

3-3

3-4 Blank

Con trols and Con nec tions - Top Panel

Vol

Off

WTA

TALK

Vol

Off

TALK

A B

Bat/

Section

WTR-682 Beltpack

Fig ure 7

WTR-682 Top Panel

1. On/Off and Vol ume Con trol - Turns beltpack power on

and con trols head set vol ume for In ter com Chan nels “A” and “B”. Ei ther knob, “A” or “B”, turns the beltpack on. Both knobs must be off to turn the beltpack off. If only one knob is off, then only that In ter com Chan nel, “A” or “B” is off for both trans mit and re ceive au dio.

2. Wire less Talk Around (WTA) - When pressed, the user’s au dio is dis con nected from the wired in ter com, aux il iary in put/out put and the base sta tion’s lo cal head set. Other beltpack us ers, on that au dio chan nel, can hear the user as nor mal. The de fault set ting is soft ware selectable, as to which In ter com Chan nel, “A”, “B”, “A + B”, or cur rently se lected chan nel, is ac ti vated along with the “WTA” but ton. The “WTA” but ton ac ti vates the nearby red LED as well as the soft ware se lected In ter com Chan nel “TALK” LED if not al ready ac tive.

3. Stage An nounce (SA) - When pressed, the user’s au dio is routed to the stage an nounce con nec tor on the back of the base sta tion. The user also loses their sidetone as an in di ca tion that stage an nounce is ac ti vated. The other wire less beltpacks and wired us ers do not hear the user’s au dio. The but ton is non-latching and ac ti vates the nearby red LED.

4. Talk But ton - Press to en able the au dio path to ei ther In ter com Chan nel “A” or “B” or “A + B”, from the lo cal head set mi cro phone. The as so ci ated “TALK” LED, #6, will turn red when en abled. A quick press and re lease latches the talk func tion, un less latch ing has been dis abled. Holding the but ton for over ½ sec ond, will cause the au dio path to be en abled only for as long as the but ton is held. If the talk func tion is latched on, press ing the talk but ton again will turn it off.

5. Low Bat tery/Overmodulation (BAT/OM) Light - Light will flash once when unit is turned on if the bat tery is good. If the light stays on, bat tery is low. If the light does not flash, bat tery is dead. A nor mal mi cro phone gain set ting will cause the LED to flash at the be gin ning of most words at nor mal speech lev els. If the gain is too high, the LED will be red dur ing the com plete word at nor mal speech lev els.

6. Talk Light - Will turn red when en abled by as so ci ated “TALK” or “WTA” but ton.

4-1

Con trols and Con nec tions - Rear Panel

SET

PT T

PT TA

(1) Microphone Shield (-)

(2) Microphone Audio (+)

(4) Headphone Low (-)

(3) Headphone High (+)

Fig ure 8

WTR-682 Rear Panel/Con nec tor/An tennas

1. [MENU] and [SET] but tons – Used to se lect menus and

set op tions on the LCD.

2. LCD (Liq uid Crys tal Dis play)

3. [UP] and [DOWN] but tons – Used to se lect beltpack op -

tions on the LCD.

4. Mi cro phone Gain – Ad justs the head set’s mi cro phone gain. Ad just so that the BAT/OM LED will flash at the be gin ning of most words at nor mal speech lev els.

5. Push-to-Talk/Push-to-Transmit Switch –

Push-to-Talk (PT TALK) – The trans mit ter is al ways on. No au dio sent un less the talk switch, WTA or SA but ton pressed. Rec om mended po si tion.

Push-to-Transmit (PT TX) - The trans mit ter and au dio path are off ex cept when the talk switch, WTA or SA but ton is pressed.

Fig ure 9

Head set Jack Wiring

6. Head set Con nec tor – Male XLR con nec tor. A dy namic or

electret head set mi cro phone is au to mat i cally de tected by the beltpack and a bias volt age sup plied if needed.

7. Bat tery Latch – Press down to en able the bat tery pack to be re leased. While the latch is held down, slide the bat tery pack about 1/8 inch back, to ward latch, un til it stops. Then lift out.

8. Re ceive An tenna – Screw type ¼-wave re place able an tenna. The color dot on the screw end of the an tenna must match color dot on an tenna re cep ta cle.

9. Trans mit An tenna – Screw type ¼-wave re place able an tenna. The color dot on the screw end of the an tenna must match color dot on an tenna re cep ta cle.

4-2

WTR-682

Spec i fi ca tions

RF Fre quency Range ......................470 - 608 MHz, 614 - 746 MHz in 18 MHz TX and RX bands

Power Re quire ments........................................6 “AA” Cells Al ka line (NiMH op tional)

Cur rent Draw ............................................190 mA (Push-to-Talk, A and B Talk On)

Tem per a ture Range ..............................................-4° F to 130° F (-20° C to 55° C)

Di men sions .................................3.75”W x 5.35” H x 2.02” D (9.5 cm x 13.5 cm x 5.1 cm)

Weight ......................................................21 oz (595g) with al ka line bat ter ies

TX An tenna ...........................................¼ Wave (sup plied), Screw type, Re place able

RX An tenna ...........................................¼ Wave (sup plied), Screw type, Re place able

FCC ID: .........................................................................B5DM517

Fre quency Re sponse..............................................................300Hz-8kHz

Mi cro phone in put sen si tiv ity .............................................................7 mV

Lo cal Head set Out put ......................................40 mW out put into 600W (1% dis tor tion)

Trans mit ter

Type ...............................................................Syn the sized, 712 chan nels

Trans mit Power ..............................................50 mW Max. (auto-power re duc tion)

Mod u la tion Type........................................................................FM

De vi a tion ...........................................................................40 kHz

RF Fre quency Sta bil ity ................................................................0.005%

Mod u la tion Lim iter ................................................Peak-Responding Com pres sor

Ra di ated Har monics & Spu ri ous ........................................Ex ceeds FCC spec i fi ca tions

Re ceiver

Type ..................Two, Dual Con ver sion Super het ero dyne Receivers, Syn the sized, FM, 712 chan nels

RF Sen si tiv ity........................................................<0.8 µV for 12 dB SINAD

Squelch Thresh old .................................................20 dB SINAD (About 1.0 µV)

IF Se lec tiv ity.................................................................3 dB at 230 kHz

Im age Re jec tion ...............................................................70 dB or better

Squelch Quieting......................................................................90 dB

RF Fre quency Sta bil ity ................................................................0.005%

Dis tor tion ...............................................................<1% at full de vi a tion

4-3

4-4 Blank

Un packing

Section

Ini tial Equip ment Set-Up

Un pack your Clear-Com Sys tem. Be low are the items that should come with your base sta tion and each belt pack.

Quan tity De scrip tion

WBS-680

1 WBS-680 Base Sta tion

1 Op er ating Instructions

1 Power Cord

2 An tennas (one Trans mit and one Re ceive)

1 Warranty Card

1 Screwdriver

1 2-terminal plug (for SA Re lay)

1 Warranty Card

4 Rub ber feet

Con tact the ship per or your dealer im me di ately if any thing is dam aged or miss ing.

WTR-680, WTR-682

Quan tity De scrip tion

1 WTR-68X with Antennas

1 Bat tery pack

1 In struc tion Sheet

1 Screwdriver

1 Warranty Card

5-1

An tenna Con nec tion

VOL

TALK

Gain

Volume

SELECT

On/off

Out

AUXILIARYINTERCOM B

2-Wire

4-Wire

Select

Out

2-Wire

4-Wire

Select

Out

INTERCOM A

BELTPACK CONNECT

1 234

Down

Set

Clear-Com

SCAN

Copy

WBS-680

WTR-680

W T A

VOL

WTR-680

The base sta tion is sup plied with two (2) an ten nas. One 1/2-wave an tenna for Trans mit and one 1/2-wave for Re ceive. The an ten nas have TNC male con nec tors.

The fre quency range of the an ten nas should match the re ceiver and trans mit ter of the base sta tion. Match the color code on the an tenna with the color code on the base sta tion.

At tach the trans mit 1/2-wave an tenna to the an tenna in put re -- cep ta cle la beled “Trans mit” on the right side of the rear panel. The an tenna should be ver ti cally aligned.

ANTENNAS SHOULD BE VERTICAL

Fig ure 12

Ver ti cally Po lar ized An tennas

Dis tance Be tween An tennas

The dis tance be tween the base sta tion’s re ceive and trans mit an ten nas is not ad just able when the an ten nas are con nected di -- rectly on the back of the unit.

The an ten nas can be remoted for better sig nal path.

NOTE: If your base sta tion is to be lo cated in a shielded rack mount en clo sure or other poor RF lo ca tion, you must re mote the 1/2-wave an ten nas with coax as sem blies.

Fig ure 10

Attaching Trans mit 1/2-Wave An tenna

At tach the re ceive 1/2-wave an tenna to the an tenna in put re -- cep ta cle la beled “Re ceive” on the left side of the rear panel. The an tenna should be ver ti cally aligned.

Fig ure 11

Attaching Re ceive 1/2-Wave An tenna

An tenna Place ment

Proper an tenna place ment prob a bly has the most ef fect on your Wire less In ter com Sys tem’s over all per for mance. The fol low ing sug ges tions will re sult in op ti mum per for mance.

Proper place ment of the beltpack can be crit i cal. The an ten nas should be in the open. Bending the an ten nas up and plac ing the beltpack in a pocket, etc., will re duce sys tem dis tance.

It is sug gested that the unit be worn on the belt or pocket with both an tenna’s ver ti cal for best op er at ing range and per for -- mance.

An tenna Po lar iza tion

The Wire less In ter com Sys tem is “Ver ti cally Po lar ized”. This means both the trans mit ting and re ceiv ing an ten nas should op -- er ate in the ver ti cal po si tion.

Fig ure 13

Proper Dress ing of the An tenna

5-2

Keep the dis tance be tween the base sta tion and the beltpacks

700 FEET

100 FEET

W T A

O F

VOL

W T A

VOL

TALK

Gain

Volume

SELECT

On/off

Out

AUXILIARYINTERCOM B

2-Wire

4-Wire

Select

Out

2-Wire

4-Wire

Select

Out

INTERCOM A

BELTPACK CONNECT

1 234

Down

Set

Clear-Com

SCAN

Copy

WBS-680

WTR-680

W T

O F F

VOL

W T

O F

VOL

TALK

Gain

Volume

SELECT

On/off

Out

AUXILIARYINTERCOM B

2-Wire

4-Wire

Select

Out

2-Wire

4-Wire

Select

Out

INTERCOM A

BELTPACK CONNECT

1 234

Down

Set

Clear-Com

SCAN

Copy

WBS-680

WTR-680RWTR-680

W T

O F F

VOL

TALK

Gain

Volume

SELECT

On/off

Out

AUXILIARYINTERCOM B

2-Wire

4-Wire

Select

Out

2-Wire

4-Wire

Select

Out

INTERCOM A

BELTPACK CONNECT

1 234

Down

Set

Clear-Com

SCAN

Copy

WBS-680

WTR-680RWTR-680

as short as pos si ble. The greater the dis tance, the weaker the sig nal. Make sure the “sig nal paths” be tween the base sta tion and beltpacks are un ob structed. You should be able to vis i bly lo cate the base sta tion an ten nas at all times for best per for -- mance.

At tempting to op er ate the wire less in ter com sys tem through or around walls, ceil ings, metal ob jects, etc. will re duce sys tem range and per for mance.

Fig ure 16

Op er ating Sys tem Near Ob struc tions

DO NOT - mount the base sta tion 1/2-wave an ten nas on, or

next to metal, such as beams, walls with metal studs, equip -- ment racks, etc. This also ap plies to the an ten nas when as sem -- bled di rectly to the Base Sta tion. This will “de tune” the an ten nas which can re sult in noise or loss of RF sig nal at the

Dis tance Be tween base sta tion and beltpack

Fig ure 14

Base Sta tion, see Fig ure 17.

Fig ure 15

Keeping Site Clear to An tenna

5-3

TALK

Gain

Volume

SELECT

On/off

Out

AUXILIARYINTERCOM B

2-Wire

4-Wire

Select

Out

2-Wire

4-Wire

Select

Out

INTERCOM A

BELTPACK CONNECT

1 234

Down

Set

Clear-Com

SCAN

Copy

WBS-680

TALK

Gain

Volume

SELECT

On/off

Out

AUXILIARYINTERCOM B

2-Wire

4-Wire

Select

Out

2-Wire

4-Wire

Select

Out

INTERCOM A

BELTPACK CONNECT

1 234

Down

Set

Clear-Com

SCAN

Copy

WBS-680

TALK

Gain

Volume

SELECT

On/off

Out

AUXILIARYINTERCOM B

2-Wire

4-Wire

Select

Out

2-Wire

4-Wire

Select

Out

INTERCOM A

BELTPACK CONNECT

1 234

Down

Set

Clear-Com

SCAN

Copy

WBS-680

TALK

Gain

Volume

SELECT

On/off

Out

AUXILIARYINTERCOM B

2-Wire

4-Wire

Select

Out

2-Wire

4-Wire

Select

Out

INTERCOM A

BELTPACK CONNECT

1 234

Down

Set

Clear-Com

SCAN

Copy

WBS-680

TALK

Gain

Volume

SELECT

On/off

Out

AUXILIARYINTERCOM B

2-Wire

4-Wire

Select

Out

2-Wire

4-Wire

Select

Out

INTERCOM A

BELTPACK CONNECT

1 234

Down

Set

Clear-Com

SCAN

Copy

WBS-680

2. Placing the WBS's on top of a shelf or equip ment rack un ob structed with out remoting the an ten nas is OK.

1. Placing WBS's in a shelf or equip ment rack and us ing re mote an ten nas is OK.

3. Placing WBS's in a shelf or equip ment rack with the an ten nas mounted on the back of the WBS or the side of the rack is BAD.

Fig ure 17

An tenna Place ment

Improving Re cep tion and In creasing Range

Keeping the dis tance from the base sta tion and beltpack as short, and un ob structed as pos si ble will pro duce the most re li -- able per for mance.

The base sta tion is sup plied with two an ten nas. This should pro vide sat is fac tory sys tem per for mance in most ap pli ca tions. Sys tem range can be en hanced by remoting the 1/2-wave an -- ten nas.

5-4

Base Sta tion Set-up

TRANSMIT SWITCHES

INTERCOM

SWITCH

INTERCOM

INTERFACE

POWER CONNECTION

PUSHPUSHPUSH

RECEIVE

HIGH

NORM

OFF

TRANSMIT POWER

I/C

TELEX CLEAR-COM

RTS

BASE STATION

LINK

RELAY

CONTACT

INTERCOM A

2-WIRE

L O O P

T H R U

4-WIRE

INTERCOM B

2-WIRE

L O O

T H

4-WIRE

AUXILIARY AUDIO

INPUT OUTPUT

STAGE ANNOUNCE

OUTPUT

POWER

100-240 VAC 50-60 Hz

TRANSMIT

MADE IN USA

WBS-680

FCC ID: B5DM514

CANADA 1321231218A

Intercom Systems

Fig ure 18

Base Sta tion - Rear Panel

Lo ca tion

Lo cate the base sta tion with the front and rear of the unit ac -- ces si ble so that switches may be set and con nec tions made. Place the trans mit and re ceive an ten nas on the base sta tion. Make sure the an tenna’s color band match the color dot near each an tenna. See “An tenna In for ma tion” sec tion for more in -- for ma tion on choos ing a proper op er at ing lo ca tion.

Power Con nec tion

Plug the sup plied power cord into the unit. The base sta tion has an IEC power re cep ta cle that ac cepts 100 – 240 VAC, 50 – 60 Hz. The spe cific re cep ta cle type is an IEC 60320/C14. The cord it ac cepts is an IEC 60320/C13. These cords are com mon and avail able through many re tail hard ware/elec tronic stores if the cord is lost.

Trans mit Switches

There are two switches lo cated on the lower left side of the rear panel. The up per switch sets the trans mit power lev els to high or nor mal. The lower switch turns the trans mit ters on or off.

Trans mit Power

Set the power level to nor mal if us ing the beltpacks at close to me dium dis tances (<200 feet, 161m, line-of-sight) from the base sta tion. Set the power level to high if us ing the beltpacks at a dis tance (>200 feet, 161m, line-of-sight) from the base sta tion.

On/Off

Set the trans mit ter switch to on for nor mal use. In the off po si tion both base sta tion trans mit ters are dis abled. Set -- ting the switch to off will dis able all the beltpacks from hear ing any one else or even their own sidetone.

5-5

In ter nal Trans mit Switches

S3 OFF

S4 OFF

Transmitter 2

Transmitter 1

FRONT

BACK

PIN 1 2 3 4 5 6 7 8

CONNECTED TO PIN 2

CONNECTED TO PIN 1

AUDIO OUT -

AUDIO IN -

CONNECTED TO PIN 7

CONNECTED TO PIN 8

AUDIO OUT +

AUDIO IN +

In ter com Switch

In ter nal to the WBS-680 are two trans mit switches which en -- able a user to turn on or off the two trans mit ters in di vid u ally. See Fig ure 19 for the lo ca tion. The top cover of the base station must be re moved for ac cess. The switch clos est to the front panel con trols trans mit ter 1 (au dio chan nel A). The switch be hind that is trans mit ter 2 (au dio chan nel B). The de -- fault switch po si tion is to the left if you are fac ing the front of the base sta tion. This is the “ON” po si tion for the trans mit ters.

In the nor mal use of the WBS-680, there is no need to ac cess these switches. They are used to test the trans mit ters in di vid u -- ally at the fac tory.

The Clear-Com Wire less sys tem can be in ter faced to Clear-Com, RTS, Audiocom® (Telex), Ma trix and other in ter -- com (I/C) sys tems. Set the In ter com switch on the rear of the unit to the ap pro pri ate sys tem and con nect the sys tem to the base sta tion. The two in ter com chan nels on the rear of the base sta tion have loop-thru male and fe male XLR con nec tions for two-wire sys tems and RJ-45 type jacks for four-wire sys tems.

This switch only af fects the two-wire in ter com sys tems. The func tions of the I/C XLRs change de pend ing on the in ter com se lected. Please see Sec tion 12 for pinout in for ma tion of the dif fer ent two-wire in ter com sys tems.

In ter com In ter face

Clear-Com and Telex (Audiocom®) in ter com sys tems re quire one ca ble for in ter com A and one ca ble for in ter com B in or -- der to in ter face two chan nels of in ter com to the base sta tion.

This in ter fac ing is done through the I/C A and B 3-pin XLR con nec tors on the rear of the unit.

RTS TW in ter coms only need to con nect one 3-pin ca ble to one of the four in ter com XLR con nec tors since two chan nels of au dio are car ried on one ca ble. The in ter com switch par al -- lels the four XLR con nec tors when in RTS mode. RTS chan -- nel 1 is placed on in ter com A and RTS chan nel 2 is placed on in ter com B as long as the RTS TW in put to the base sta tion is wired as in Sec tion 12.

Fig ure 19

In ter nal Trans mit Switches

Four-wire in ter com sys tems re quire one ca ble for in ter com A and one ca ble for in ter com B in or der to in ter face two chan -- nels of four-wire in ter com to the base sta tion. This in ter fac ing is done through the I/C A and B RJ-45 type jacks on the rear of the unit. See Fig ure 20 for the pinout of the RJ-45 jacks.

Fig ure 20

RJ-45 Type/ Four-wire Pinout

5-6

Dual Lis ten Func tion al ity

FRONT

BACK

B INTO A

MIX

B INTO A

MIX

OFFOFF

ONONONON

IF PARTS INSTALLED

REMOVE R296

S7S7

S6S6

R296R296

R298R298

VR6VR6

MIX

LEVEL

MIX LEVEL

OFFOFF

ONONONON

IF PARTS INSTALLED

REMOVE R295

R295R295

R297R297

VR5VR5

MIX LEVEL

A INTO B

MIX

A INTO B

MIX

B INTO A

MIX

B INTO A

MIX

OFFOFF

ONONONON

IF PARTS INSTALLED

REMOVE R296

S7S7

S6S6

R296R296

R298R298

VR6VR6

MIX

LEVEL

MIX

LEVEL

OFFOFF

ONONONON

IF PARTS INSTALLED

REMOVE R295

R295R295

R297R297

VR5VR5

MIX

LEVEL

MIX

LEVEL

A INTO B

MIX

A INTO B

MIX

750608 REV X 879416- 1 REV J

The base sta tion’s main au dio board has the op tion of plac ing ad di tional parts to en able dual lis ten. Dual lis ten al lows the mix ing of the in ter com chan nels. The mix ing will oc cur lo -- cally, within the base sta tion, and is only heard on that base sta tion's beltpacks. The user will have the abil ity to en able/dis -- able the mix of I/C A into I/C B or vise versa.

They will also have the abil ity to con trol the level of the mix (-4 dB to -24 dB down from main chan nel). Re moving two sur face mount re sis tors and in stall ing two SPDT switches and two po ten ti om e ter en ables dual lis ten. The parts to be in stalled are shown in Ta ble 1. The two re sis tors on the board to be re -- moved are in Ta ble 2.

Board

Des ig na tor De scrip tion and Func tion Valu e Man u fac turers, Part No.

VR5, VR6 Po ten ti om e ters 20kW - 25kW Bourns, 3309P-1-203

VR5 = Con trols I/C A into I/C B Mix CTS, U262R253B VR6 = Con trols I/C B into I/C A Mix Piher, PT10LV10-203A2020

S6, S7 Switches SPDT E-Switch, 500ASSP1M2RE

S6 = En able/Dis able I/C A into I/C B Mix E-Switch, EG1218 S7 = En able/Dis able I/C B into I/C A Mix Alcoswitch, TSS11DGPC

Ta b l e 1

Parts to be In stalled by User to En able Dual Lis ten

Board

Des ig na tor De scrip tion and Func tion Valu e

R295 Re sis tor, De fault if mix com po nents not in stalled 10k

R296 Re sis tor, De fault if mix com po nents not in stalled 10k

Parts to be Re moved by User to En able Dual Lis ten

The listed man u fac tures and part num bers in Ta ble 1 are those that the au dio board was laid out for and thus the hole pat tern used. Sev eral of these parts may be found at Digi-Key and other dis trib u tors. Trim the leads on the parts so they can not hit the metal case. Lo ca tions to place these com po nents are pro vided on au dio board part num ber 750608.

Ta b l e 2

The au dio board part num ber is lo cated on the lower left hand side of the board if fac ing the front of the unit. The lo ca tions where the com po nents can be in stalled are on the up per right hand side of the board. See Fig ure 21 for the lo ca tions.

Fig ure 21

Au dio Board Part Num ber and Dual Lis ten Com po nent Lo ca tions

5-7

Aux il iary In put/Out put

FRONT

BACK

B INTO A

MIX

B INTO A

MIX

OFFOFF

ONONONON

IF PARTS INSTALLED

REMOVE R296

S7S7

S6S6

R296R296

R298R298

VR6VR6

MIX

LEVEL

MIX LEVEL

OFFOFF

ONONONON

IF PARTS INSTALLED

REMOVE R295

R295R295

R297R297

VR5VR5

MIX LEVEL

A INTO B

MIX

A INTO B

MIX

750608 REV X 879416- 1 REV J

ONON

A & BA & B

AUX INAUX IN

R294R294

R293R293

S5S5

IF PARTS INSTALLED

REMOVE R295

A & B

AUX IN

R294

R293

AUXILIARY INPUT

ROUTING SWITCH

The in put and out put 3-pin XLR aux il iary con nec tions are for sup ply ing ad di tional bal anced au dio into and re ceiv ing bal -- anced au dio from the base sta tion. The out put aux il iary con -- nec tion only in ter faces to in ter com B. How ever, there is an in ter nal switch to con trol the rout ing of the in put aux il iary au -- dio. See the "In ter nal Aux il iary In put Routing Switch" sec tion of this man ual.

The in put and out put aux il iary au dio is global. This means the in put aux il iary au dio is placed on the base lo cal head set, beltpack(s), head sets, and any wired in ter com sys tem in ter -- faced to the base sta tion. The in ter com chan nel(s) the in put aux il iary au dio is placed on de pends on the po si tion of the in -- put rout ing switch.

The out put aux il iary au dio is also taken from the in ter com B base lo cal head set, beltpack(s), head sets, and any wired in ter -- com con nected to the base sta tion. A mod i fi ca tion doc u ment is avail able from Clear-Com for those who wish to mod ify the base sta tion so that aux il iary in put au dio is heard only lo cally; base lo cal head set and beltpack(s) head sets.

In ter nal Aux il iary In put Routing Switch

This switch con trols the rout ing of the in put aux il iary au dio. This switch has two po si tions. The "B" po si tion places aux il -- iary in put au dio onto in ter com B only (default from fac tory). The "A & B" po si tion places aux il iary in put au dio onto in ter -- com A and B. Please see Fig ure 22 for the lo ca tion of this in -- ter nal aux il iary in put rout ing switch.

Fig ure 22

Aux il iary In put Routing Switch

5-8

+ 60 hidden pages

Clear-Com WTR-680 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual