7996 SHDSL NTU User’s Guide2.2 InstallationFollow the step-by-step instructions below for the hardware installation:Connect the LINE port to your DSL line.Step 1Step 2Step 3Step 4Step 5Step 6Connect the LAN port to the SNMP management network with an RJ45 connector cable.Connect the E1 interface to the Data network.Connect the Console port to the VT100 compatible terminal or PC COM port with anRS232 cable.Connect the Power to the power input.For the DC version, connect the power pins as follows:z –48V: Connect to –48VDC power supply source.z PG: Connect to the ground of –48VDC power supply source.z FG : Connect to the frame ground.For the AC version, connect the Power jack to the power cable of the 110 or 220 VAC poweradapter.After power on (for the AC version, turn the power switch to the ON position), the7996-A2-374 performs a self-test. During the self-test, all LEDs will keep flashing backand forth sequentially. The test items include system RAM, flash memory and applicationsoftware. If an error is found in RAM, the ALARM LED will be ON. If an error is foundin flash memory or application software, the ALARM LED will keep flashing.Caution: If the SHDSL NTU fails to power on, or it malfunctions, first verify that thepower supply is correctly connected, and then power it on again.7996-A2-GB21-00 September 2004 9