8 Connect load

8.1 High and low priority load

The customer load may be divided into two parts based on priority and connected as high priority (HP) load or low priority (LP) load. The low priority load will disconnected before the high priority load if the voltage supply goes low. See DC Power Port in section 3.2 Technical specification for more information.

The high priority load usually has radio links/transmission while the low priority load usually has larger loads like Radio Base (RBS/BTS equipment). The total high priority load on site must not be more than 3000 W.

8.2 High and low priority bypass breakers

High and low priority bypass breakers (see figure 8.1) are only used when the Main Compartment is being replaced. When the Main Compartment is in place, the breakers must be in the 'Off' position.

Figure 8.1. High and low priority bypass breakers.

8.3 Connect customer load

Warning

Make sure that all instructions in this manual are obeyed before you connect the customer load.

1) Remove the insulation from the cable. Use a wire stripping tool.

Figure 8.2. Customer load connection on ground bar.

2) Release the screw for the customer load cable connector on the positive ground bar (see figure 8.2). Use a PZ2 screwdriver and a 13 mm socket wrench. 3) Put the positive customer load cable into the cable connector. 4) Tighten the screw.

Figure 8.3. Customer load connection to the HP and LP load breakers.

5) Release the screw for the customer load cable connector on the customer load switch (see figure 8.3). Use a PZ2 screwdriver. 6) Connect the negative customer load cable to the customer load switch.

• Low priority = F601LP

• High priority = F601HP

7) Tighten the screw. 8) Set the switch to 'On'.

If more than one tenant is used, connect them as above to customer load switch F602 and F603.

8.4 Connect auxiliary equipment

The auxiliary equipment terminal can be used to connect e.g. light sources and tools running on -48V. The equipment connected to the auxiliary equipment terminal will not be part of any tenant measurement.

1) Remove the insulation from the cable. Use a wire stripping tool.

Figure 8.4. Auxiliary equipment connection on the ground bar.

2) Release the screw for the auxiliary equipment cable connector on the ground bar (see figure 8.4). Use a PZ2 screwdriver. 3) Put the positive auxiliary equipment cable into the cable connector. 4) Tighten the screw.

Figure 8.5. Auxiliary equipment connection to DC breaker.

5) Release the screw for the auxiliary equipment cable connector on the auxiliary equipment terminal (see figure 8.5). Use a PZ2 screwdriver. 6) Connect the negative auxiliary equipment cable to the auxiliary terminal F604. 7) Tighten the screw. 8) Set the switch to 'On'.

If more than one auxiliary device shall be used, connect them as above to auxiliary equipment terminal F605 and F606.