TBP10 - 10 channels intercom full duplex

The TBP10 is the main unit of a handsfree system  for professional communication, composed by a intercom TBP10 and from a maximum of 10 remote intercom stations EL4400/S.
The system is proper to be used during the production of films and television programs but it can be employed for comment, dubbing and any other purpose.
The TBP10 has an IFB input (interrupted feedback) to be able to listen the audio signal of the program in processing that is interrupted when begins the conversation with one of the EL4400/S stations.

The TBP10 is normally installed in the control room or in the comment/speaker room and all the EL4400/Ss in the various connected rooms (for instance editing rooms).
The start of the connection among a station EL4400/S and the TBP10 it is executed pressing on the "TALK" lever switch present on the EL4400/S; to happened connection, the corresponding led on TBP10 is on, if in this circumstance, another intercom activates the lever switch "TALK", the corresponding led on TBP10 flashes but the connection is not activated, the second EL4400 remains in stand-by up to when the first conversation is not completed.
The principle of functioning is based on a priority system, the EL4400/S linked to the connector number 1 has the highest priority, the number 10 that lowest. If the EL4400/Ss that activate an request are two, the EL4400/S with lowest priority has to attend the end of the conversation of the EL4400/S with highest priority The connection with the stations EL4400/S happens through particular XLR connectors with which it has been possible keep down the height dimension of the TBP10 in only 1RU 19."

The connection among the TBP10 and the EL4400s, is FULL DUPLEX and HANDSFREE; for a correct operation it is necessary to regulate the potentiometer set on the anterior panel of the central intercom (TBP10) so that among the interlocutors happens.a communication without interruptions.
The TBP10 is endowed with a particular circuit anti Larsen to eliminate the reentry of the signal audio among loudspeaker and microphone.
The optimal position of the potentiometers must be retouches in the case in which there is a notable difference of noisiness in the environments where are placed the intercoms.

FEATURES

• 4 wires connection system
• interrupted feedback
• 10 independent channels
• handsfree operation
• headphone push button for the selection of the headphone and exclusion of the loudspeaker
• microphonic input with XLR 3 connector on frontal panel
• microphonic output 0 dB to be able to use the same microphone of the TBP10 for the comment
• Regulation of the microphone level (through trimmer)
• Independent level regulation for each of the 10 channels
• Regulation of the level of general listening
• Amplified output (2 watt) with incorporated loudspeaker
• 0 dB output for external amplifier
• universal power supply (100-240 Vac 70 mA)
• metallic container standard 19" 1RU with 350 mm depth

Microphone Input

• type: balanced and unbalanced
• connector: XLR3 female
• impedance: 2000/4000 ohms
• phantom power: 48 Volt 1.7 mA

Microphone Outputs (MIC OUT)

• balanced output with galvanic and DC isolation
• connector: XLR3 male
• nominal output level: 0 dBu
• maximum output level at the clipping: 17 dBu

Talkback Inputs (RTB In)

• balanced input with galvanic and DC isolation
• connector: XLR3 female
• input impedance: 10 Kohm
• input level for 2 Watt in loudspeaker: 0 dB
• maximum level at the clipping: 12 dB
• bandwidth: -3 dB from 100 Hz to 10 Khz

Talkback Outputs (TB OUT)

• balanced output with galvanic and DC isolation
• connector: XLR3 male 
• output nominal level: 0 dBu
• maximum output level at the clipping: 17 dBu
• bandwidth: -3 dB from 100 Hz to 7.5 Khz

Interrupted Feedback Input (IFB In) for audio program

• balanced input with galvanic and DC isolation
• connector: XLR3 female
• input impedance: 10Kohm
• nominal input level for 2 Watt in loudspeaker = 0dB
• maximum level at the clipping: 12dB
• bandwidth: -3dB from 100Hz to 10Khz

0 dB Output
Audio output for the connection to an external amplification system, with 0 dB level independent from the regulation of the volume of listening on the frontal panel.

LED of signaling

• 10 leds for view the enabled channels
• led power of feeding
• led headphone: selected bonnet  

In accordance with constant improvement policy of products, El.Man (Elettronica Mangione) reserves the right to modify without notice and at any time, features and prices of its own apparatus.