Chapter 2 - Installation
2.4.1Out of Service/Test Jumper
When the MT2834 is Out Of Service (OOS), it is busy to incoming calls. In the Test (default) setting, the modem drives pin 25 high when the modem is in Test mode. In the OOS (optional) setting, the computer or terminal forces pin 25 high and puts the modem in a busy condition. Note that jumper (shorting) plugs are not shipped with the MT2834, but is provided by
Test Setting | OOS Setting |
(Factory Default) | (Optional) |
2.4.2MI/MIC Option Jumper
To activate MI/MIC option (Mode Indicate/Mode Indicate Common Interface), you must first move MI/MIC jumper plugs. The $MI command, then controls this function (AT$MI1 enables MI/MIC and AT$MI0 disables MI/MIC). This option is for applications where the modem's dialing capability is not used, and dialing is done by an external device (such as a 801 dialer, a computer, or a PBX/CBX system dialer).
MI/MICMI/MIC
MI/MIC Disabled | MI/MIC Enabled |
(Factory Default) | (Optional) |
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