4. Configuring the Unit Using the Internal Switches4-2 May 2002 7990-A2-GB20-00Configuring the Unit Using Internal SwitchesUse internal Switchpacks S3 and S4 to manually configure the unit.HANDLING PRECAUTIONS FORSTATIC-SENSITIVE DEVICESThis product is designed to protect sensitive components from damagedue to electrostatic discharge (ESD) during normal operation. Whenperforming installation procedures, however, take proper static controlprecautions to prevent damage to equipment. If you are not sure of theproper static control precautions, contact your nearest sales or servicerepresentative.ProcedureTo configure the unit using internal Switchpacks S3 and S4:1. Power off the unit.2. Remove the enclosure cover:— Use a Phillips screwdriver to remove the two screws from the top ofthe unit.— Push a flat-blade screwdriver through the slots on both sides of thehousing to free the four inner latches.3. Locate Switchpack S3 on the circuit board using Figure 4-1, Hotwire TDMSHDSL Endpoint’s Switchpack Locations.4. Set Switch 1 on Switchpack S3 to ON to enable Switchpacks S3 and S4.5. Set the switches to the desired configuration.— For Model 7995, refer to Table 4-1 and Table 4-2.— For Model 7996, refer to Table 4-3 and Table 4-4.6. Replace the cover and fasten it with the two screws.7. Power on the board to reset the unit and enable the new configuration.!
