Dual T1/PRI Status Displays
4-3
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Line Interface Unit 1/2
The power-up code verifies whether or not the NIC is present and
then configures the CSU on the NIC to local loopback mode.
The failure level for this test is Non-critical.
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Flash ROM 12v Test
This self-test checks and verifies that the 12v circuitry to the Flash
ROM functions properly. The failure level for this test is Non-critical.
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HDLC Channel 1/2
The code checks the HDLC controller channels 1 and 2. The HDL
controller is used for D-channel signaling. The failure level for this
test is Non-Critical.
Menu Option 2 Checking the T1/PRI’s overall status
This status screen provides status information for:
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Current PRI timing source
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Current packet bus timing source
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What type of NIC is installed behind the NAC
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What chassis slot the NAC is installed in
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How much time elapsed since the NAC was last reset
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How much DRAM is installed on the NAC
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How much Flash ROM is installed on the NAC
Menu Option 3 Checking chassis slot device configurations
Status menu option 3 allows you to verify if you configured the chassis
slot assignments correctly in option 5 of the card configuration menu.
The slot # column represents the chassis slot numbers, 1–16.
The device type column indicates the type of NAC installed and assigned
in the corresponding chassis slot. It displays one of these:
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NONE
No NAC is installed and assigned to that particular slot.
