Modem User Manual

MTX-H15 UMTS-HSDPA terminal modem http://www.matrix.es
MTX-H15 User Manual V.2.0 Pag. 15
Preliminary. Subject to change without prior notice
The electrical characteristics are given in the table below.
Audio mode no. AT^SNFS= 1 2
Name Default Handset Router
Purpose DSB with Votronic handset Analog phone interface
TX-Filters Adjusted Flat
RX-Filters Adjusted to fit artificial ear type 3.2
low leakage
Flat
Gain setting Fix Fix
Power supply VMIC ON during call ON during call
Sidetone Fix No
Volume control Fix Fix
Echo canceller ON ON
Non Linear Processor ON ON
Comfort Noise Generator ON ON
Noise Reduction -15dB OFF
MIC input signal for 0dBm0, f =
1024Hz
16mV 582mV
EP output signal in mV rms. @
0dBm0, 1024Hz, no load (default
gain) / @ 3.14 dBm0
516mV 2.1Vpp 516mV 2.1Vpp
Sidetone gain at default settings 25.7dB -∞ dB
3.3 Mini USB Connector
The USB 2.0 interface allows the connectivity to all relevant PCs and control boards in office and industrial
environments. The USB interface is a USB 2.0 full speed (12Mbit/s) interface for AT-C modem functionality
between the MTX-H15 Terminal and e.g. a PC.
It can be operated on a USB 2.0 Full Speed or High Speed root hub (a PC host), but not on a generic USB
2.0 High Speed hub which translates High Speed (480 Mbit/s/) to Full Speed (12 Mbit/s).
The USB I/O-pins are capable of driving the signal at min 3.0V. They are 5V I/O compliant. To properly
connect the module’s USB interface to the host a USB 2.0 compatible connector is required. Furthermore,
the USB modem driver delivered with MTX-H15 must be installed as described below.