Telereport plus - portable telephon hibrid

The TELEREPORT PLUS main functions are the following:
· Fully controlled by microprocessor and equipped with display and keyboard.
· Echo cancellation through DSP in case of echoes during communication with normal telephone lines.
· Parametric filter that equalises the incoming audio signal which could be set as per frequency and gain. This function is needed to optimise the frequency response of the received signal depending of the quality of the line.
· TELEREPORT PLUS is equipped from factory with the "Cell" connector that allows the use of an external mobile phone.
· Optional internal GSM module with external antenna that can be plugged into TELEREPORT PLUS through a connector on the front panel.
· Heavy duty NiMh (Nickel Metal Hydrate) internal batteries. A dedicated circuit allows the fully automatic control of the charge and of the temperature; these features allow the maximum duration and efficiency level of the internal batteries.
· Detector of Busy / free line with visualization.
· Auto answer and auto recall facilities
· DTMF tone generator and detector.
· Tone for line calibration facility.

TECHNICAL SPECIFICATIONS

MICROPHONE INPUT
Configuration: Transformer Balanced Input (EMI Filtered)
Input Impedance: 200 W balanced
Input Level Range: -70 dBu ¸ - 50 dBu adjustable
Frequency Response: 100 Hz ¸ 6 KHz
Noise: -63 dBu (din Audio)
Connector: 6 mm Jack stereo female
ALC Control Range: between -70 ¸ -40 dBu
ALC Attack Time: 10 mSec
ALC Release Time: 2 Sec

LINE INPUT
Configuration: Electronic Balanced Input (EMI Filtered)
Input Impedance: 20 KW electronically balanced
Input Level Range: 0 dBu ± 12 dBu adjustable
Frequency Response: 100 Hz ¸ 6 KHz
Noise: -66 dBu (din Audio)
Connector: 6 mm Jack stereo female

HEADPHONE OUTPUT
Power: 2x160 mW @ 50 W level adjustable (EMI Filtered)
Frequency Response: 100 Hz ¸ 6 KHz
Connector: 6 mm Jack stereo female

REC OUTPUT
Output Impedance: 100 W unbalanced (EMI Filtered)
Output Level: 0 dBu fix
Frequency Response: 100 Hz ¸ 6 KHz
Connector: 6 mm Jack stereo female

HYBRID CIRCUIT
Standard Specification ETS 300001 (NET4)
Impedance: 600 W (EMI Filtered)
RX Level: -10 dBu (adjustable gain -6 ¸ +18 dB)
TX Level: 0 dBu
Hybrid null: -40 dBu full band
Frequency Response: 230 Hz ¸ 3400 Hz
Distortion: 0,8%
Connector: RJ11 4 pins

INTERNAL GSM
Standard Freq. 900/1800 (1900 on request)
Frequency Response: 200 Hz ¸ 3700 Hz
Antenna Connector: SMA Female

MOBILE CONNECTOR TX
Level: -10 dBu (for external GSM)
RX Level: -6 dBu
Connector: RJ11 6 pins

GENERAL DATA
Power Supply: 3 battery (NI-MH) 1,2 V 2300 mAh
Power Consumption: TBD
Autonomy: TBD
External Supply: 5 VCD 500 mA