Changing The Nt Unit - Alcatel 9900 User Manual

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5.4

Changing the NT unit

Stages
1. Turn off NT unit power. Disconnect from power source.
2. Disconnect all cables connected to the NT unit to be changed.
3. Change NT unit after checking that the characteristics coincide (number of inputs, impedance, etc.).
4. Reconnect NT unit cables.
5. Power up NT unit.
6. Wait for "Power" LED to light up.
7. Wait for flashing of "Alarm" LED. The NT unit is in operation once the LED is extinguished.
8. Check the absence of alarms in the 9900LT software application (see section 4.10 of the Base Station User
Manual ).
9. Update the station installation sheet .
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5.5 Changing the RT unit
Stages
1. Disconnect the RT/NT connection cable.
2. Change RT unit after checking the characteristics are identical.
3. Carry out antenna alignment. For this, refer to section 3 of the present Manual.
4. Reconnect the RT/NT connection cable. Wait two minutes. Reconfiguration is automatic.
5. Check the absence of alarms in the 9900LT software application.
6. Update the station installation sheet .
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Issue 02 - January 04, 2000
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