Siemens MTX-H15 user manual Mini USB Connector, Audio mode no. ATSNFS=

MTX-H15 UMTS-HSDPA terminal modem http://www.matrix.es

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	Flat
	low leakage
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 =	16mV	582mV
1024Hz
EP output signal in mV rms. @	516mV 2.1Vpp	516mV 2.1Vpp
0dBm0, 1024Hz, no load (default
gain) / @ 3.14 dBm0
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.

MTX-H15 User Manual V.2.0Pag. 15

Preliminary. Subject to change without prior notice