Wistron Corporation EM300 ユーザーズマニュアル
EM300 Data Card Integration Guide
R&D Division, Handheld & Mobile Communication,
Taipei Design Center, Wistron Corp.
Engineering Specification
20
Setup
Determining the Computer’s Active Primary COM Port
To verify the computer’s recognition of the modem and to verify which Primary COM Port it is connected to,
navigate to Start\Control Panel\Phone and Modem Options and then click on the Modems tab within the
Phone and Modem Options window. Refer to Figure 2 below.
navigate to Start\Control Panel\Phone and Modem Options and then click on the Modems tab within the
Phone and Modem Options window. Refer to Figure 2 below.
Figure 2 – Phone and Modems Options Window
Look for the Wistron CorporationMerlin EM300 MODULE EDGE Modem item on the list. To the right of this
item in the ‘Attached To’ column, you will see a COM port number - make a note of this Primary COM
Port Number. If you do not see any COM No. for this item and you only see “Not Present”, then this indicates
that the modem is not being recognized and is not attached to a COM Port on the
computer. In this case, make sure the USB and power cable are properly connected at both
ends. If the modem has properly booted up, with no SIM in the SIM holder, the WAN LED on the
Development Board should be blinking at a steady rate. If there is a SIM in the SIM Holder, the
LED will be solid green.
item in the ‘Attached To’ column, you will see a COM port number - make a note of this Primary COM
Port Number. If you do not see any COM No. for this item and you only see “Not Present”, then this indicates
that the modem is not being recognized and is not attached to a COM Port on the
computer. In this case, make sure the USB and power cable are properly connected at both
ends. If the modem has properly booted up, with no SIM in the SIM holder, the WAN LED on the
Development Board should be blinking at a steady rate. If there is a SIM in the SIM Holder, the
LED will be solid green.
Determining the Computer’s Active Secondary or Status COM Port
To verify which Secondary, or Status COM Port the modem is connected to, navigate to Start\Control
Panel\System. After you have double-clicked on the System Icon, click on the Hardware Tab within the
System Properties window. Now click on the Device Manager tab. In the Device Manager window, click on
the “+” beside Modems to expand this item. You should
Panel\System. After you have double-clicked on the System Icon, click on the Hardware Tab within the
System Properties window. Now click on the Device Manager tab. In the Device Manager window, click on
the “+” beside Modems to expand this item. You should