The components on the rear panel of the BSC high-power distribution box are the power input terminal block, power output terminal block, port used to connect the power distribution box to a service subrack, and 2-hole grounding screw.
Figure 1 shows the rear panel of the BSC high-power distribution box.
Figure 1 Rear panel of the BSC high-power distribution box
| (1) Power input terminal block | (2) Power output terminal block |
| (3) Port used to connect the power distribution box to a service subrack | (4) 2-hole grounding screw |
NOTE: - Figure 1 shows the main ports related to the BSC.
- On the power input terminal blocks of groups A and B, the wiring terminals for the -48 V power cable are labeled 3(-), 2(-), and 1(-), and the wiring terminals for the RTN power cable are labeled 3(+), 2(+), and 1(+).
- On the power output terminal blocks of groups A and B, the wiring terminals for the -48 V power cable and RTN power cable are labeled NEG(-) and RTN(+) respectively .