Eliminate Customer Service & Limited Warranty in T.O.C.
G
Eliminate Customer Service & Limited Warranty
H
Update manual for European requirements
Manual changed to Rev. B
Correction of typo
Manual changed to Rev. D
Add CE information
8 1/2”
APPD
JA
JA
02-17-03
04-29-03
01-05-04JA
04-22-04DO
03-16-05JRC
JA
JA
803257-1
4. VENDOR: COMMERCIAL PRINTER
3. TELEX TO SUPPLY ARTWORK
2. MATERIAL: 60# OFFSET WITH 65LB LAURENTINE COVER OR EQUIVALENT,
WHITE WITH BLACK LETTERING.
1. MANUAL FOLDED AND STAPLED.
NOTES:
TOLERANCES
UNLESS OTHERWISE
SPECIFIED
FRACTION
DECIMAL
ANGLE
DATE
DR BY
CHK BY
APPD.
PROD.
03-16-05
NH
JTN
JRC 03-16-05
11”
0891
TELEX
TELEX COMMUNICATIONS, INC.
Lincoln, Nebraska U.S.A.
TITLE
BTR-800, TR-800, TR-825
INSTRUCTION MANUAL
This drawing, written description or specification represents a proprietary product of
Telex, Lincoln, NE, and shall not be
released, disclosed, used nor duplicated
without the written permission of TELEX
UNLESS OTHERWISE
SPECIFIED DIMENSIONS
ARE IN INCHES.
SIZE
S
SCALE:NONE
CODE IDENT
57010
DWG. NO.
803257-1
SHEET: 1 of 1
Telex
0891
Op er ating In struc tions
RadioCom
™
BTR-800, TR-800, TR-825
Pro fes sional
Wire less
In ter com Sys tem
Thank you for choos ing RadioCom
Telex Com mu ni ca tions would like to take this op por tu nity to thank you for choos ing the RadioCom™ BTR-800
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 RadioCom™ 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.
TM
-Telex Com mu ni ca tions, Inc.
Ta ble of Con tents
In tro duc tion ..........................................................................1 -1
Gen eral De scrip tion ..........................................................................1 -1
Sys tem Fea tures .............................................................................1-1
BTR-800 Block Di a gram ......................................................................1-2
BTR-800 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
BTR-800 Spec i fi ca tions.......................................................................2-3
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
Soft ware Li cense......................................................................14-1
Certification In for ma tion ..............................................................15-1
Dec la ra tion of Con for mity .............................................................15-2
-ii-
Section
1
In tro duc tion
Gen eral De scrip tion
The Telex RadioCom™ BTR-800 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 BTR-800 sys tem in cludes the BTR-800 fre quency ag ile
base sta tion, work ing with up to four TR-800 or TR-825 fre --
quency ag ile beltpacks. The BTR-800 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 BTR-800 sys tem is per fectly suited for stand-alone op er a --
tion and also can in ter face with Audiocom® (Telex), RTS®
TW, Clear-Com®, as well as RTS Ma trix 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 RadioCom™ BTR se ries has been de signed for re li able,
ef fi cient op er a tion. Op er ating in the 470 to 740 MHz range,
the units op er ate re li ably at line-of-sight dis tances of 1,000
feet. With avail able an tenna sys tems, from Telex, 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 Audiocom® (Telex), RTS TW, Ma trix,
•
Clear-Com® , 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.
TR-825 fea tures two au dio chan nel 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.
•
RTS® and Audiocom® are reg is tered trade marks of Telex Com mu ni ca tions, Inc.
Clear-Com® is a reg is tered trade mark of Clear-Com In ter com Sys tems, Inc.
1-1
PORTABLE
STATION 1
CONNECT
RECEIVE
1
LOGIC
PORTABLE
STATION 2
CONNECT
LOGIC
1 OF 5
RECEIVE
2
PORTABLE
STATION 3
CONNECT
LOGIC
RECEIVE
3
PORTABLE
STATION 4
CONNECT
RECEIVE
4
LOGIC
LOGIC
WTA A
TRANSMIT 1
LOGIC
SELECT
FEMALE
MALE
XLR
2
W
I
R
E
4
W
I
R
E
2 WIRE
4 WIRE
INTERCOM A
I/C
TEL
E
X
R
T
S
C
L
E
ARC
O
M
CHANNEL B
AUXILIARY
AUDIO
INPUT
XLR
FEMALE
ON/OFF
ON/O.M.
IN
INTERCOM B
OUT
2 WIRE
4 WIRE
R
J11
STYLE
2 WIRE
INTERCOM A
OUT
INTERCOM A
IN
INTERCOM B
IN
RJ11
STYLE
4 WIRE
4 WIRE
2 WIRE
MALE
FEMALE
XLR
SELECT
LOGIC
INTERCOM B
AUXILIARY
AUDIO
OUTPUT
XLR
MALE
OUT
TRANSMIT 2
WTA B
SELECT
1 OF 5
SELECT
1 OF 5
SELECT
1 OF 5
SELECT
SA
MIC
GAIN
XLR
HEADSET
1
4
2
3
LOGIC
CHANNEL
SELECT
CHANNEL A
TALK
TALK
A
B
VOLUME
LOGIC
XLR
MALE
STAGE
ANNOUNCE
OUTPUT
RELAY
CONTACT
mar g aiD kcolB 008-RTB
1-2
Con trols and Con nec tions - Front Panel
TALK
MIC GAIN
TALK/O.M.
VOLUME
SELECT
A
B
ON/O.M.
ON/OFF
IN
OUT
AUXILIARYINTERCOM B
2 WIRE
4 WIRE
SELECT
IN
OUT
2 WIRE
4 WIRE
SELECT
IN
OUT
INTERCOM A
PORTABLE STATION CONNECT
1 2
3
4
UP
DOWN
MENU
SET
RadioCom
ä
BTR-800
ClearScan
TM
COPY
1
2
3
4
5
6
7
8
9
10
11
12
13
14
(1) Microphone
Shield (-)
(2) Microphone
Audio (+)
(3) Headphone
High (+)
(4) Headphone
Low (-)
(4) Headphone
Low (-)
(3) Headphone
High (+)
(1) Microphone
Shield (-)
(2) Microphone
Audio (+)
PUSH
(5) (4) Headphone
Low (-)
(3) Headphone
High (+)
(1) Microphone
Shield (-)
(2) Microphone
Audio (+)
PUSH
BTR-800 - Front Panel
Section
2
BTR-800 Base Sta tion
Fig ure 1
1. Power switch.
2. [Menu] and [Set] but tons – Used to se lect menus and set
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. Talk / 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 for
Telex units, Fe male XLR con nec tor for RTS units. A dy namic or electret head set mi cro phone is au to mat i cally de tected.
Telex Units
RTS Units
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.
2-1
Lo cal Head set Wiring
Fig ure 2
Con trols and Con nec tions - Rear Panel
RECEIVE
HIGH
ON
NORM
OFF
TRANSMIT
POWER
I/C
TELEX CLEARCOM
RTS
BTR-800
FCC ID: B5DM514
CANADA 1321231218A
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
INPUTOUTPUT
STAGE ANNOUNCE
OUTPUT
POWER
100-240 VAC 50-60 Hz
TRANSMIT
MADE IN USA
PUSHPUSHPUSH
Telex
Telex Communications, Inc.
1
2
3
4
5
6
7
8
9
10
11
12
BTR-800 - 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 Telex, RTS
or Clear-Com®.
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-11 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-11 type jack com pat i ble with “Ma trix” type in ter com sys tems.
2-2
BTR-800
Spec i fi ca tions
Over all
RF Fre quency Range ......................470 - 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 ............................................1/2 Wave (sup plied), TNC Male Con nec tor
RX An tenna ............................................1/2 Wave (sup plied), TNC Male Con nec tor
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)
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
Clear-Com® In ter com ............. In put/Out put Level Ad just able (1 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 ter nally 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)..............................100mW Max. (High), 10 mW (Nor mal)
Mod u la tion Type........................................................................FM
De vi a tion .............................................................40 kHz (35 kHz Eu rope)
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
VOL
OFF
SA
WTA
Telex
R
AB
CHANNEL
BAT/OM TALK
TALK
1
2
4
5
6
7
3
Section
3
TR-800 Beltpack
Fig ure 4
TR-800 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 tivates the nearby red
LED as well as the “TALK” LED, #6, when pressed.
4. Au dio Chan nel Se lect Button – Al lows user to se lect ei ther au dio chan nel A or B.
5. Bat/Overmod Light (BAT/OM) – 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. Talk 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
(1) Microphone
Shield (-)
(2) Microphone
Audio (+)
(4) Headphone
Low (-)
(3) Headphone
High (+)
(1) Microphone
Shield (-)
(4) Headphone
Low (-)
(3) Headphone
High (+)
(2) Microphone
Audio (+)
MENU
SET
MI
C
PT
T
X
PT
T
A
L
K
6
6
7
7
8
8
9
9
MENU
SET
MIC
PT
TX
PT
TA
LK
22
11
33
44
55
(1) Microphone
Shield (-)
(5) (4) Headphone Low (-)
(3) Headphone High (+)
(2) Microphone
Audio (+)
6. Head set Con nec tor – Male XLR con nec tor for Telex
units, Fe male XLR con nec tor for RTS units. 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.
Telex Units
RTS Units
Fig ure 5
TR-800 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 6
Head set Jack Wiring
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 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
TR-800
Spec i fi ca tions
RF Fre quency Range ......................470 - 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 bat ter ies
TX An tenna..........................................1/4 Wave (sup plied), Screw type, Re place able
RX An tenna..........................................1/4 Wave (sup plied), Screw type, Re place able
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 (35 kHz Europe)
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
SA
WTA
Telex
R
TALK
VOL
OFF
TALK
AB
BAT/OM
1
2
3
1
6
6
4
4
5
Section
4
TR-825 Beltpack
Fig ure 7
TR-825 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
(1) Microphone
Shield (-)
(2) Microphone
Audio (+)
(4) Headphone
Low (-)
(3) Headphone
High (+)
MENU
SET
MI
C
P
T
T
X
P
T
T
AL
K
6
6
7
7
8
8
9
9
MENU
SET
MIC
PT
TX
P
T
T
ALK
22
11
33
44
55
(1) Microphone
Shield (-)
(3) Switched
Headphone Ground
(2) Microphone
Audio (+)
(4) Headphone
(Audio A)
(5) Headphone
(Audio B)
(1) Microphone
Shield (-)
(4) Headphone
Low (-)
(3) Headphone
High (+)
(2) Microphone
Audio (+)
(1) Microphone
Shield (-)
(2) Microphone
Audio (+)
(5) Headphone
Audio B
(4) Headphone
Audio A
(3) Switched Headphone Ground
Menu Set
[ Ab SEP ]
[ Ab Add ]
PIN 3
GND
OPEN
RESULT ON 5-PIN
DUAL HEADPHONE
A in one side, B in other side
A + B
Fig ure 8
TR-825 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.
Telex Units
RTS Units
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 –
6. Head set Con nec tor – Male XLR con nec tor for Telex
units, Fe male XLR con nec tor for RTS units. 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. Four
pin Telex/RTS units are mon au ral. Five pin Telex/RTS
units have a soft ware set-up which grounds or opens pin 3.
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 Wir ing
Sin gle sided 5-pin head sets will only re ceive A or B, de pend --
ing on how head phone is wired. These head sets must have the
beltpack set for [Ab SEP]
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 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
TR-825
Spec i fi ca tions
RF Fre quency Range ......................470 - 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 ............................................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..........................................1/4 Wave (sup plied), Screw type, Re place able
RX An tenna..........................................1/4 Wave (sup plied), Screw type, Re place able
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
5
Ini tial Equip ment Set-Up
Un pack your RadioCom™ Sys tem. Be low are the items that
should come with your base sta tion and each belt pack.
Quan tity De scrip tion
BTR-800
1BTR-800 Base Sta tion
1Op er ating In struc tions
1Power Cord
2An tennas (one Trans mit and one Re ceive)
1War ranty Card
1Screw driver
12 ter mi nal plug (for SA Re lay)
1Warn ing Card
4Rub ber feet
Quan tity De scrip tion
Con tact the ship per or your dealer im me di ately if any thing is
dam aged or miss ing. Fill out the reg is tra tion card and re turn it
to Telex to reg is ter the unit.
TR-800, TR-825
1TR-8XX with An tennas
1Bat tery pack
1In struc tion Sheet
1Screw driver
1War ranty Card
5-1
An tenna Con nec tion
T
e
l
e
x
W
T
A
A
B
O
F
F
B
A
T
/
O
M
T
A
L
K
R
a
d
i
o
C
o
m
T
R
-
8
0
0
T
M
VOL
SA
TALK
MIC GAIN
TALK/O.M.
VOLUME
SELECT
A
B
ON/O.M.
ON/OFF
IN
OUT
AUXILIARYINTERCOM B
2 WIRE
4 WIRE
SELECT
IN
OUT
2 WIRE
4 WIRE
SELECT
IN
OUT
INTERCOM A
PORTABLE STATION CONNECT
1 234
UP
DOWN
MENU
SET
RadioCom
ä
BTR-800
ClearScan
TM
COPY
T
e
l
e
x
W
T
A
A
B
O
F
F
B
A
T
/
O
M
T
A
L
K
R
a
d
i
o
C
o
m
T
R
-
8
0
0
T
M
VOL
SA
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.
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.
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. A Telex
coax as sem bly with re mote an ten nas may be re quired. See
"Ac ces sory" sec tion fr or der ing information.
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. See "Ac ces sories
and Re place ment Parts" sec tion for re mote mount ing hard --
ware.
An tenna Place ment
Proper an tenna place ment prob a bly has the most ef fect on
your TELEX 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.
Fig ure 11
Attaching Re ceive 1/2-Wave An tenna
An tenna Po lar iza tion
The Telex 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 tennas
5-2
Keep the dis tance be tween the base sta tion and the beltpacks
700 FEET
100 FEET
T
e
l
e
x
W
T
A
A
B
O
F
F
B
A
T
/
O
M
T
A
L
K
R
a
d
i
o
C
o
m
T
R
-
8
0
0
T
M
VOL
SA
TALK
MIC GAIN
TALK/O.M.
VOLUME
SELECT
A
B
ON/O.M.
ON/OFF
IN
OUT
AUXILIARYINTERCOM B
2 WIRE
4 WIRE
SELECT
IN
OUT
2 WIRE
4 WIRE
SELECT
IN
OUT
INTERCOM A
PORTABLE STATION CONNECT
1 234
UP
DOWN
MENU
SET
RadioCom
ä
BTR-800
ClearScan
TM
COPY
T
e
l
e
x
W
T
A
A
B
O
F
F
B
A
T
/
O
M
T
A
L
K
R
a
d
i
o
C
o
m
T
R
-
8
0
0
T
M
VOL
SA
T
e
l
e
x
W
T
A
W
T
A
A
B
O
F
F
O
F
F
B
A
T
/
O
M
T
A
L
K
R
a
d
i
o
C
o
m
T
R
-
8
0
0
TMT
M
VOLVOL
SASA
T
e
l
e
x
W
T
A
A
B
O
F
F
B
A
T
/
O
M
T
A
L
K
R
a
d
i
o
C
o
m
T
R
-
8
0
0
T
M
VOL
SA
TALK
MIC GAIN
TALK/O.M.
VOLUME
SELECT
A
B
ON/O.M.
ON/OFF
IN
OUT
AUXILIARYINTERCOM B
2 WIRE
4 WIRE
SELECT
IN
OUT
2 WIRE
4 WIRE
SELECT
IN
OUT
INTERCOM A
PORTABLE STATION CONNECT
1 234
UP
DOWN
MENU
SET
RadioCom
ä
BTR-800
ClearScan
TM
COPY
T
e
l
e
x
O
F
F
B
A
T
/
O
M
T
A
L
K
R
a
d
i
o
C
o
m
T
R
-
7
0
0
T
M
VOL
TALK
MIC GAIN
TALK/O.M.
VOLUME
SELECT
A
B
ON/O.M.
ON/OFF
IN
OUT
AUXILIARYINTERCOM B
2 WIRE
4 WIRE
SELECT
IN
OUT
2 WIRE
4 WIRE
SELECT
IN
OUT
INTERCOM A
PORTABLE STATION CONNECT
1 234
UP
DOWN
MENU
SET
RadioCom
ä
BTR-800
ClearScan
COPY
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
Fig ure 14
Dis tance Be tween base sta tion and beltpack
an ten nas which can re sult in noise or loss of RF sig nal at the
Base Sta tion, see Fig ure 17.
Fig ure 15
Keeping Site Clear to An tenna
5-3
T
elex
UHF ANTENNA SPLITTER/COMBINER
SC-600
T
elex
R
T
elex
T
elex
UHF ANTENNA SPLITTER/COMBINER
SC-600
T
elex
R
#1
#2
#3
TALKTALK
MIC GAINMIC GAIN
TALK/O.M.TALK/O.M.
VOLUMEVOLUME
SELECTSELECT
AA
BB
ON/O.M.ON/O.M.
ON/OFFON/OFF
ININ
OUTOUT
AUXILIARYAUXILIARYINTERCOM BINTERCOM B
2 WIRE2 WIRE
4 WIRE4 WIRE
SELECTSELECT
ININ
OUTOUT
2 WIRE2 WIRE
4 WIRE4 WIRE
SELECTSELECT
ININ
OUTOUT
INTERCOM AINTERCOM A
PORTABLE STATION CONNECTPORTABLE STATION CONNECT
11 223344
UPUP
DOWNDOWN
MENUMENU
SETSET
RadioCom
ä
BTR-800
ClearScanClearScan
TMTM
COPY
TALKTALK
MIC GAINMIC GAIN
TALK/O.M.TALK/O.M.
VOLUMEVOLUME
SELECTSELECT
AA
BB
ON/O.M.ON/O.M.
ON/OFFON/OFF
ININ
OUTOUT
AUXILIARYAUXILIARYINTERCOM BINTERCOM B
2 WIRE2 WIRE
4 WIRE4 WIRE
SELECTSELECT
ININ
OUTOUT
2 WIRE2 WIRE
4 WIRE4 WIRE
SELECTSELECT
ININ
OUTOUT
INTERCOM AINTERCOM A
PORTABLE STATION CONNECTPORTABLE STATION CONNECT
11 223344
UPUP
DOWNDOWN
MENUMENU
SETSET
RadioCom
ä
BTR-800
ClearScanClearScan
TMTM
COPYCOPY
TALKTALK
MIC GAINMIC GAIN
TALK/O.M.TALK/O.M.
VOLUMEVOLUME
SELECTSELECT
AA
BB
ON/O.M.ON/O.M.
ON/OFFON/OFF
ININ
OUTOUT
AUXILIARYAUXILIARYINTERCOM BINTERCOM B
2 WIRE2 WIRE
4 WIRE4 WIRE
SELECTSELECT
ININ
OUTOUT
2 WIRE2 WIRE
4 WIRE4 WIRE
SELECTSELECT
ININ
OUTOUT
INTERCOM AINTERCOM A
PORTABLE STATION CONNECTPORTABLE STATION CONNECT
11 223344
UPUP
DOWNDOWN
MENUMENU
SETSET
RadioCom
ä
BTR-800
ClearScanClearScan
TMTM
COPYCOPY
TALKTALK
MIC GAINMIC GAIN
TALK/O.M.TALK/O.M.
VOLUMEVOLUME
SELECTSELECT
AA
BB
ON/O.M.ON/O.M.
ON/OFFON/OFF
ININ
OUTOUT
AUXILIARYAUXILIARYINTERCOM BINTERCOM B
2 WIRE2 WIRE
4 WIRE4 WIRE
SELECTSELECT
ININ
OUTOUT
2 WIRE2 WIRE
4 WIRE4 WIRE
SELECTSELECT
ININ
OUTOUT
INTERCOM AINTERCOM A
PORTABLE STATION CONNECTPORTABLE STATION CONNECT
11 223344
UPUP
DOWNDOWN
MENUMENU
SETSET
RadioComRadioCom
ää
BTR-800BTR-800
ClearScanClearScan
TMTM
COPYCOPY
TALKTALK
MIC GAINMIC GAIN
TALK/O.M.TALK/O.M.
VOLUMEVOLUME
SELECTSELECT
AA
BB
ON/O.M.ON/O.M.
ON/OFFON/OFF
ININ
OUTOUT
AUXILIARYAUXILIARYINTERCOM BINTERCOM B
2 WIRE2 WIRE
4 WIRE4 WIRE
SELECTSELECT
ININ
OUTOUT
2 WIRE2 WIRE
4 WIRE4 WIRE
SELECTSELECT
ININ
OUTOUT
INTERCOM AINTERCOM A
PORTABLE STATION CONNECTPORTABLE STATION CONNECT
11 223344
UPUP
DOWNDOWN
MENUMENU
SETSET
RadioComRadioCom
ää
BTR-800BTR-800
ClearScanClearScan
TMTM
COPYCOPY
2. Placing the BTR on top of a
shelf or equip ment rack un ob structed with out remoting
the an ten nas is OK.
1. Placing BTRs in a shelf or
equip ment rack and us ing re mote an ten nas is OK.
3. Placing BTRs in a shelf or
equip ment rack with the an ten nas mounted on the back
of the BTR or the side of the
rack is BAD.
Fig ure 17
Im proving Re cep tion and In creasing
An tenna Place ment
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.
5-4
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. The ½ wave an ten nas are ground plane in de pend ent,
so a ground plane is not re quired for good per for mance.
Base Sta tion Set-up
RECEIVE
HIGH
ON
NORM
OFF
TRANSMIT
POWER
I/C
TELEX CLEARCOM
RTS
BTR-800
FCC ID: B5DM514
CANADA 1321231218A
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
INPUTOUTPUT
STAGE ANNOUNCE
OUTPUT
POWER
100-240 VAC 50-60 Hz
TRANSMIT
MADE IN USA
PUSHPUSHPUSH
Telex
Telex Communications, Inc.
POWER CONNECTION
INTERCOM
SWITCH
TRANSMIT
SWITCHES
INTERCOM
INTERFACE
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
ON
ON
S3
OFF
S4
OFF
Transmitter 2
Transmitter 1
FRONT
BACKBACK
NC
AUDIO IN +
AUDIO OUT +
AUDIO OUT -
AUDIO IN -
NC
PIN 6 5 4 3 2 1
In ter com Switch
In ter nal to the BTR-800 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 sta --
tion 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 BTR-800, 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 RadioCom® wire less sys tem can be in ter faced to RTS,
TW, Audiocom® (Telex), Clear-Com®, RTS 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-11 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
T elex (Audiocom®) and Clear-Com® 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-11 type jacks on the rear
of the unit. See Fig ure 20 for the pinout of the RJ-11 jacks.
Fig ure 20
RJ-11 Type/ Four-wire Pinout
5-6
T
e
l
e
x
WT
A
A
B
OFF
B
A
T
/
O
M
T
A
L
K
R
a
d
i
o
C
o
m
T
R
-
8
0
0
T
M
VOL
SA
T
e
l
e
x
WT
A
A
B
OFF
B
A
T
/
O
M
T
A
L
K
R
a
d
i
o
C
o
m
TR
-
8
0
0
T
M
VOL
SA
T
e
l
e
x
WT
A
A
B
OF
F
B
A
T
/
O
M
T
A
L
K
R
a
d
i
o
C
o
m
T
R
-
8
0
0
T
M
VOL
SA
T
e
l
e
x
WT
A
A
B
OF
F
B
A
T
/
O
M
T
A
L
K
R
a
d
i
o
C
o
m
T
R
-
8
0
0
T
M
VOL
SA
MODEL PS15
POWER SUPPLY
O/N 9000678600
IMPEDANCE
SELECT
NORM
200
DUAL
400
OUTPUTS
J1, J2 CONNECT TO
J1J2
TW INTERCOM SYSTEM COMPONENTS
REFER TO OPERATION MANUAL
AUDIO
COUPLING
CM1-CM2
J3
TIP-CH1
RING-CH2
SLEEVE-COM
RTS SYSTEMS, BURBANK CALIFORNIA MADE IN U.S.A.
FUSE
0.5A S8/120 VAC
CAUTION
FOR CONTINUED PROTECTION AGAINST FIRE
REPLACE ONLY WITH SAME TYPE FUSE.
CHN 1CHN 1
HEADSET
LINE
HEADSET
LINE
HEADSET
LINE
HEADSET
LINE
INTERCOM
POWER SUPPLY
RTS DISTRIBUTION
PANEL (TW5W)
BP-318
BP-350
BP-350
RECEIVE
HIGH
ON
NORM
OFF
TRANSMIT
POWER
I/C
TELEX CLEARCOM
RTS
BTR-800
FCC ID: B5DM514
CANADA 1321231218A
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
INPUTOUTPUT
STAGE ANNOUNCE
OUTPUT
POWER
100-240 VAC 50-60 Hz
TRANSMIT
MADE IN USA
PUSHPUSHPUSH
Telex
Telex Communications, Inc.
RECEIVE
HIGH
ON
NORM
OFF
BP-318
BTR-800
TR-800’s
or
TR-825’s
(PS15)
Fig ure 21
Ex am ple In ter face to an RTS TW Sys tem
5-7
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