Elman TBP8 Talkback plus 8-channel 2/4-wire Intercom

by Elman
DISCONTINUED
Elman TBP8 Talkback plus 8-channel 2/4-wire Intercom
TBP8 is a professional intercom produced by ELMAN that allows the communication to 4 wires on 8 channels, or to 4 wires on 7 channels plus to 2 wires on 1 channel, on which you can connect more users.
The functions of every channel are separately configurable.
The connection with other apparatuses happens through common connectors XLR.
The TBP8 is an intercom usable in all that cases in which the distance communication is necessary, for example:

-production of television programs and films;
-theatrical shows;
-conferences;
-sporting events;
-commercial and industrial installations, etc.
Thanks to the use of particular XLR panel connectors, it has been possible to contain the dimensions of the TBP8 in a container only 1RU 19" high.
This, togheter with low consumption and the possibility of 12 V or 24 V power supply, make the TBP8 a versatile instrument for use both in studios and in vehicles for outside broadcast.

TBP8 is compatible with similar apparatuses of other brands in commerce.

Optional accessories

TBU - Telephone Balance Unit
The TBU (Telephone Balance Unit) provide high degree of separation between send and receive signals, enabling 4-wires communications
system to interface with the telephone network.
In telephone IFB applications, the high drive capacity at the 4-wires output, enables a presenter`s earpiece to be connected directly to the
unit without an external amplifier.

4WBB - 4 Wires Beltpack Box
The 4WBB is a compact 9V battery-powered box for headset use only.
Is available as option, a model of 4WBB directly fed by the TBP8 intercom through the cable audio.
Selectable operating modes suit various applications in a number of studio and outside broadcast situations where 4-wires communications
are used.

BIA - Beltpack IFB Amplifier
The BIA (Beltpack IFB Amplifier), battery-powered belt-pack unit, allows either loudspeaker or headphone monitoring of a communication
or audio feed, and is typically used with a presenter`s earpiece as part of an IFB kit.

Options:
On request we can furnish a version of the TBP8 able to feed directly the beltpack terminals 4WBB through the audio cable.
TBP8T
Is available a modified version of TBP8 able to connect two telephones in parallel to the input 1.

Features

-8 independent channels.
-4 IFB bus and loop-through for every channel.
-Monitoring of IFB and RTC signal (talkback return).
-2 wires mode selectable for channel 1, with or without IFB.
-Selectable microphone input: headset or gooseneck (XLR 3 connector).
-Independent regulation for the microphone inputs with relative level indication.
-External control LS CUT (cut listening loudspeaker) and DIM (attenuation listening).
-Independent configuration for every channel for: routing control and signal monitoring.
-Talk switch GPI output (optional)
-Amplified output (2 watts) for external speakers through two 6.3 mm jacks (one on front panel and other on rear panel)
-Universal AC power: 100-240 Vac 70 mA
-DC power: 12 V or 24 V (1,2 A).
-Metallic case: 19" 1RU standard with depth 350 mm.
-Weight: 3.5 Kg.

Specifications

Microphone inputs
Gooseneck microphone input
type: balanced and unbalanced
connector: XLR3 female
impedance: 2000/4000 ohm
phantom power: 12 V 1.7 mA

headset inputs
type: balanced and unbalanced
connector: XLR5 female
impedance: 2000/4000 ohm
phantom power: 12 V 1.7 mA

Microphone output
type: balanced output with galvanic isolation in continuous current
connector: XLR3 male
nominal output level: 0 dBu
maximum output level (clipping): 17 dBu

Talkback inputs (RTB IN)
type: balanced input with galvanic isolation in continuous current
connector: XLR3 female
impedance: 10K ohm
Input level for 2 W in loudspeaker: 0 dB
maximum level (clipping): 12 dB
bandwith: -3 dB from 100 Hz to 10 Khz

Talkback outputs (TB OUT)
type: balanced output with galvanic isolation in continuous current
connector: XLR3 male
nominal output level: 0 dBu
maximum output level (clipping): 17 dBu
bandwith: -3 dB from 100 Hz to 7.5 Khz

Interrupted Feedback inputs (IFB IN)
type: balanced input with galvanic isolation in continuous current
connector: XLR3 female
impedance: 10K ohm
Input nominal level for 2 W in loudspeaker: 0dB
maximum level (clipping): 12 dB
bandwith: -3 dB from 100 Hz to 10 Khz

Segnaling LEDS
Talk Level 0 dBU
Talk Level 8 dBU
Call and Talk for every channel
GN (Gooseneck): gooseneck microphone input selected
H/S (Headset): headset microphone input selected

Controls

Front panel
-Select Mic - Select microphone input
-LS CUT - cut of loudspeaker listening
-LS DIM - regulation of listening level
-GROUP TALK - talk to all 8 channels
-TALK - TALK button for each of the 8 channels, configurable as monostable or bistable
-MON LEVEL - Regulation of listening level for each of the 8 channels
-IFB / RTB switcher for each of the 8 channels

Rear panel
-Upper dip-switch (10 switches) for: selection operation to 2/4 wires for channel 1, Talk Latch (selection of the monostable or bistable function for the keys TALK), selection of 4 wires output with or without IFB
-Bottom dip-switch IFB/RTB (8 switchers) for: send to every exit TB, the signal IFB or RTB

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