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DSI SS7MD Programmer’s Manual Issue 3
• ais_gen
The (initial) mode used to generate the Alarm Indication Signal (Blue alarm). The user may subsequently
modify the setting of the outgoing signal using the LIU_MSG_CONTROL message. The following table
shows the permitted values and their meanings.
• high_Z
The mode settings to allow interface high impedance for monitoring purposes. The following table shows
the permitted values and their meanings.
• clk_options
A 16-bit value containing clocking options for the LIU. This value provides the ability to override default
LIU clocking options for each LIU. Default options are specified per board within the MGT_MSG_CONFIG0
message.
— Bit 0 - Disable LIU clock recovery for this interface.
— All other bits set to 0.
10 T1 long haul LB0 (-15dB)
11 Not supported.
12 T1 long haul LBO (-22.5dB)
Value Description
1 Disabled; do not generate AIS/Blue alarm
2 Enabled; generate AIS/Blue alarm
Value Description
1 Disabled; normal impedance presented on the line
2 Enabled; set the LIU to high impedance for monitoring