Specifications

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DSI SS7MD Network Interface Boards Programmer's Manual Issue 4
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4.3 Hardware Control Messages
Hardware control messages are used to control various hardware devices on the
board, including the T1/E1/J1 Line Interface Units (LIUs), the digital cross connect
switches and the clocking mode for the board.
In a static configuration, these hardware blocks can be set up using the s7_mgt protocol
configuration utility along with the appropriate commands in the config.txt protocol
configuration file.
If dynamic control of the hardware is required (or the user has elected not to use
s7_mgt), the user application must build and send at least some of the hardware
control messages.
The messages in the hardware control category include:
LIU_MSG_CONFIG - LIU Configuration Request
LIU_MSG_CONTROL - LIU Control Request
LIU_MSG_R_CONFIG - LIU Read Configuration Request
LIU_MSG_R_CONTROL - LIU Read Control Request
MVD_MSG_SC_DRIVE_LIU - LIU Switch Initialization
MVD_MSG_SC_LISTEN - Cross Connect Switch Listen Request
MVD_MSG_RESETSWX - Reset Switch Request
MVD_MSG_SC_CONNECT - Connect Request
MVD_MSG_SC_MULTI_CONNECT - Multiple Connect Request