background image

Up to ten beltpacks, in full duplex (simultaneous talk and listen),
may communicate with each other over a Ethernet network.  In
fact do to the flexibility of the BTR-24 system, wired beltpacks
connected via a hub to a network could communicate to a BTR-24 
connected to the same network.  This base station could then be
connected wirelessly to other TR-24s operating in wireless mode.

Figure 5-7

Five Wired TR-24's communicating with 5 wireless

TR-24's

Set-up

Below are instructions for the set-up and operation of a TR-24s
connected via an Ethernet backbone.

1.

Prior to use the TR-24 should have their battery packs fully
charged.  Refer to the “Battery Charging Instructions” near
the end of this section.

2.

Plug the TR-24’s external power supply into an AC outlet if
desired.  If external power is not desired then run off internal
battery.

3.

Connect the TR-24(s) to each other via an Ethernet
backbone.  Use category 5e or better Ethernet cables that are
wired to standards T-568A or T-568B (Most all Ethernet
cables are built to these standards). 

NOTE: 

 Either straight through or crossover Ethernet cables

my be used.  The beltpack and base station automatically
detect which type is connected.

4.

Plug headsets into the TR-24 beltpacks.

5.

Power-up the TR-24 beltpacks in wired mode.  The wired
mode is entered by holding the <1> button down as the unit
boots.  Once a beltpack was booted in a mode (wireless,
wired, master wireless), the beltpack will always boot in that
mode until the user sets a different boot mode.

The power light should immediately light solid.  

After 20 seconds a beltpack voice prompt will announce
“wired”  in the headphone (The "wired" announcement
will be followed by the software version within the unit.).

Audio channel one’s light will activate indicating
communication has started.

Beltpack Audio Channels

  - Press the <1> button for audio

channel one only.  Press the <2> button for audio channel two
only.  Press both <1> and <2> buttons simultaneous to select
both.  Use the talk button to select between enabling / disabling
the headset microphone path. The channel light(s) will blink if the 
microphone path is disabled. The light(s) will be solid if the
microphone path is enabled.  See table below for talk modes:

Figure 5-8

Top View of TR-24

5-4

H
U
B

Telex

TR-24

R

Telex

TR-24

R

Telex

TR-24

R

Telex

TR-24

R

Telex

TR-24

R

Telex

TR-24

R

Telex

TR-24

R

Telex

TR-24

R

Telex

TR-24

R

Telex

TR-24

R

ON

OFF

LOW

BATTERY

POWER

AP

ACTIVE

CHANNEL

Telex

R

SELECT

CHANNEL
CLEAR SCAN
LOCK

BTR-24

OFF

BATTERY

TALK

MIC

Telex

S.T.

A J

D

+

1

2

A J

D

<TALK> Mode

Description

Activation

Push-to-Latch/
Momentary 

(default mode)

Microphone is
enabled until the
button is tapped
again.
If held down for 1/2
second the
microphone path is
disabled on release.

Tap <TALK>
button. Tap again 
to turn off.

<TALK> held
down for over 1/2 
second.

Momentary Only
(Push-to-TX)

<TALK> button
enables the audio
path for only as long 
as it is held down.
The beltpack will be 
in this mode until
reset to
push-to-latch mode. 

Press <1> +
<TALK> + <2>
until voice
prompt indicates
momentary mode 
(about 3
seconds). Do
again to go back
to push-to-latch
mode.

Summary of Contents for BTR-24

Page 1: ...BTR 24 TR 24 Wireless Intercom System Operating Manual Bosch Communications Systems ...

Page 2: ... Mode 5 5 Description 5 5 Set up 5 5 System Operation 5 6 Tour Group Example 5 7 Battery Charging Instructions 5 7 Section 6 Encryption and Password 6 1 Encryption Code 6 1 Login Password 6 1 Software Version 6 1 Logging into a Unit 6 1 User Menu Options 6 2 Enter new password 6 2 Display current encryption key 6 2 Enter new encryption key 6 2 Exit 6 2 Section 7 Battery Care Long Term Storage 7 1 ...

Page 3: ...R 24 base station can support up to ten TR 24 beltpacks in full duplex mode and more if in push to transmit mode The base station provides a central relay location which handles the audio traffic between beltpacks The built in base station intelligence called ClearScan automatically selects the best RF Radio Frequency channel for communications on start up The base station also uses an internal re...

Page 4: ...tly displayed channel difficult for a user to accidentally change 6 Receive Antenna Jack Reverse TNC receive jack 7 Charge Power Jack Used to charge the internal battery or power the unit directly off a wall outlet Accepts a 5 5mm x 2 5mm plug with the center positive Must be supplied with a 12VDC regulated power supply with at least a 400mA current capacity 8 Charge Light RED Battery is charging ...

Page 5: ...Must be supplied with a 12VDC regulated power supply with at least a 400mA current capacity 7 Charge Light RED Beltpack battery is charging GREEN Beltpack battery is charged 8 Headset Connector Standard 4 pin XLR connector 9 Configuration Jack RJ 45 jack used to interface the beltpack to an Ethernet cable Jack may be used for wired mode and configuring the beltpack Beltpack Button Combinations All...

Page 6: ...on Rechargeable BTR 24 Battery Life 10 Hr Typical BTR 24 Recharge Time 10 14 Hr Typical BTR 24 Low Battery Indication 30 minutes of battery life left Typical TR 24 Beltpack Battery Lithium Ion Rechargeable TR 24 Battery Life 8 Hr Typical TR 24 Recharge Time 6 8 Hr Typical TR 24 Low Battery Indication 15 minutes of battery life left Typical BTR 24 Base Station Size 6 00 L x 7 63 W x 1 72 H 15 24cm ...

Page 7: ...tpacks and 28 Push to TX beltpacks Up to 4 of the 28 Push to TX beltpacks could go to full duplex at the same time without reaching system limitations If 5 of the Push to TX were to become full duplex for a total of 11 full duplex beltpacks the system would go beyond its loading limit and all users will start to experience drop outs and delays in audio Multiple base stations can also be utilized i...

Page 8: ... solid After 20 seconds a beltpack voice prompt will announce wireless in the headphone Audio channel one s light will activate indicating communication has started System Operation By following the previous setup instruction the system should now be up and running Please read the following information for optimization best performance of that system Beltpack position When operating the system wea...

Page 9: ...has started In this mode the beltpack s radio is deactivated and the bottom RJ 45 Ethernet connection is active The beltpacks communicate to each other via an Ethernet network connected to the RJ 45 jack on the bottom of the unit No base stations are required for beltpacks to communicate with each other in this mode The connection between beltpacks could be a direct connection via an Ethernet cabl...

Page 10: ...at mode until the user sets a different boot mode The power light should immediately light solid After 20 seconds a beltpack voice prompt will announce wired in the headphone The wired announcement will be followed by the software version within the unit Audio channel one s light will activate indicating communication has started Beltpack Audio Channels Press the 1 button for audio channel one onl...

Page 11: ...ore than 100m 328ft of Ethernet cable between devices 4 If using an existing building s Ethernet network consult your network administrator as to the locations you plan on connecting your TR 24 or BTR 24s to the network They can then check to make sure distance limitations of the network are met and that existing in house router switchers are set to pass TR 24 and BTR 24 packets NOTE All TR 24 and...

Page 12: ...on By following the previous setup instruction the system should now be up and running Please read the following information for optimization best performance of that system Beltpack position When operating the system wear the beltpack on the hip Place it in a position that allows for greatest visibility to the master TR 24 antennas The internal antennas for the TR 24 are on the sides of the beltp...

Page 13: ...h mode full duplex for this application but due to the greatly increase bandwidth requirement for this talk mode the group s size would be limited to 9 Ten total if you include the tour guide s master beltpack NOTE Only 9 full duplex beltpacks can work off a master beltpack Thus the number of full duplex beltpacks working off that master beltapck must be reduce by the number of Push to TX beltpack...

Page 14: ...e user configuration screen if a beltpack is booted in wired mode it will announce the software revision letter one second after the wired voice prompt is heard Logging into a Unit Computer Requirements Hardware Monitor Keyboard Mouse Network card 10 BaseT or 100 BaseT Ethernet straight thru or crossover cable Use the green cable supplied with the system Operating System Microsoft Windows 95 98 NT...

Page 15: ... Displays on the screen the current encryption key of the beltpack 3 Enter new encryption key The user must change the encryption key if this option is selected Since a base station acts only as a relay for the audio packets it is not necessary to change its encryption key 1 When 3 is selected the phrase Enter new encryption key appears 2 Now enter the new encryption key The maximum length is 80 c...

Page 16: ...rnal TR 24 or BTR 24 batteries for two hours then take them off charge Please see the discussion of Li Ion batteries in the follow part of this section as to why 2 Store the TR 24s and BTR 24 in a clean cool dry location away from heat The temperature of the storage location should not rise above room temperature The recommended temperature range of the storage location is 32 77 F 0 25 C 3 Every 6...

Page 17: ...smit and receive connectors If the antenna has cables the cables are labeled as to their connection point Find the source of the interference and shut it down Sources of WiFi interference could be Laptop Desktop computer with its wireless card on or WiFi AP in or near the press box If the interference cannot be found or shut off then press and hold the SELECT button for 3 seconds until the decimal...

Page 18: ...ng then turned on When the TR 24 beltpack power was turned on the unit s power light came up but the 1 button light never came up and communication never started Internal battery is nearly exhausted On boot and error was encountered and the unit could not finish boot up Charge the battery Power down the TR 24 wait two seconds then power up again Headphone audio from another beltpack s is loud and ...

Page 19: ...tory domain When choosing frequency channels for systems in the vicinity of each other you should choose frequency channels that do not overlap e g Channels 1 6 and 11 Section 9 RF Channels 1 2 3 4 5 6 7 8 9 10 11 Channel Numbers 1 2 3 4 5 6 7 8 9 10 11 2 412 2 422 2 432 2 442 2 452 2 462 2 472 2 417 2 427 2 437 2 447 2 457 2 467 Channel Center Frequencies in GHz 22 MHz Channel Bandwidth XO 1 XO A...

Page 20: ...4 The BTR 24 base station complies with FCC radiation exposure limits set forth for an uncontrolled environment The antennas used with this equipment should be installed and operated with a minimum distance of 20cm between the antenna and your body 5 This device and its antenna s must not be co located or operated in conjunction with any other antenna or transmitter To assure continued compliance ...

Page 21: ...ector TNC RP 302054009 TNC reverse polarity coupler Coupler is a reverse polarity jack to jack CC 24 302054010 Carry Case for BTR 24 System RA 3 302054003 Omni Antenna 3dB with TNC reverse polarity connector RA 7 302054004 Omni Antenna 7dB with TNC reverse polarity connector RA 5 302054005 Omni Antenna 5dB magnetic mount with TNC reverse polarity connector FP 11 302054006 Flat Panel Directional an...

Page 22: ...net cable and US power supplies ANT FP 302054001 Dual Diversity Flat Patch Antenna with Dual Coax 11dBi ANT FPM 302054000 Metal Tilt and Swivel Antenna Mounting bracket for ANT FP Antenna Use for permanent mount of ANT FP Flat Panel Antenna XOB 302054002 Nylon Belt Adjustable 550257 Communications Cable Ethernet CAT 5e Cable 3 ft LG PS 532091000 Charger for base and beltpack 100 240 VAC input 12VD...

Page 23: ...8601 East Cornhusker Highway Lincoln NE 68507 Made in U S A PN LIT000078TX Rev A Bosch Communications Systems ...

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