Multi-Tech Systems 92U07G30822 ユーザーズマニュアル
Chapter 2 – SocketModem HSDPA
Multi-Tech Systems, Inc. Universal Socket Hardware Guide for Developers (S000342G)
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Turn off the Module Using AT Command
The best and safest approach to powering down is to issue the AT^SMSO command. This procedure lets the module log off
from the network and allows the software to enter into a secure state and safe data before disconnecting the power supply.
The mode is referred to as Power-down mode. In this mode, only the RTC stays active.
After sending AT^SMSO do not enter any other AT commands. There are two ways to verify that the module turns off:
Wait for the ”OK” – response. It indicates that data has been stored non-volatile and that the module turns off in less than TBD
second.
from the network and allows the software to enter into a secure state and safe data before disconnecting the power supply.
The mode is referred to as Power-down mode. In this mode, only the RTC stays active.
After sending AT^SMSO do not enter any other AT commands. There are two ways to verify that the module turns off:
Wait for the ”OK” – response. It indicates that data has been stored non-volatile and that the module turns off in less than TBD
second.
Important Note:
The SocketModem requires a reset to become active again.
USB Interface
The Module supports a USB 1.1 Full Speed (12Mbit/s) device interface.
The USB I/O-pins are capable of driving the signal at min 3.0V.
To properly connect the module’s USB interface to the host a USB 1.1 compatible connector is required. Furthermore, the
USB modem driver for Windows XP delivered with the module be installed as described in the Installation Guide.
While the USB connection is active, the module will not change into SLEEP Mode. To enable switching into SLEEP mode the
USB host has to be able to change into suspend mode. On incoming calls, the module will then generate a remote wake up
request to resume the USB connection. This can be realized by means of the HOST_WAKEUP line. If no call, data or
message transfer is in progress, the HOST_WAKEUP line is passive. To save power, the host could then shut down the USB
interface. If a call or other request (URC’s, messages) arrives, the host can be woken up again by activation of
HOST_WAKEUP (passive to active transition).
The USB I/O-pins are capable of driving the signal at min 3.0V.
To properly connect the module’s USB interface to the host a USB 1.1 compatible connector is required. Furthermore, the
USB modem driver for Windows XP delivered with the module be installed as described in the Installation Guide.
While the USB connection is active, the module will not change into SLEEP Mode. To enable switching into SLEEP mode the
USB host has to be able to change into suspend mode. On incoming calls, the module will then generate a remote wake up
request to resume the USB connection. This can be realized by means of the HOST_WAKEUP line. If no call, data or
message transfer is in progress, the HOST_WAKEUP line is passive. To save power, the host could then shut down the USB
interface. If a call or other request (URC’s, messages) arrives, the host can be woken up again by activation of
HOST_WAKEUP (passive to active transition).
Analog Audio Interface
The module supports one analog audio interface available on the board to board connector.
The following two pictures show the balanced headset interface with microphone feeding and the line interface.
The following two pictures show the balanced headset interface with microphone feeding and the line interface.
Network Connectivity Status Signals
One status signal is provided for signaling the module’s connectivity status (58 of the socket).