Reference Manual

Unit Description, ACCU/DCCU
16 Unit Description, ACCU/DCCU
This chapter describes the AC Connection Unit (ACCU) and the DC
Connection Unit (DCCU). They distribute primary power to the PSUs.
There is only one ACCU or DCCU in the cabinet, depending on the
type of incoming power.
16.1 ACCU
The ACCU consists of a box with:
• Terminal block for incoming AC cables
•
Eight-pole main switch (disconnecting device)
•
One EMC filter
•
Four cables to the PSUs
16.1.1 Functions
The ACCU has the following functions:
•
Termination of incoming AC mains cables
• Disconnecting incoming AC mains
•
EMC filtering
16.1.2 External Interfaces
P006805A
ACCU
Figure 109 ACCU
The ACCU has the following interfaces:
EN/LZT 720 0008 P2A
2001-11-28
195 (485)
© Ericsson Radio Systems AB
— All Rights Reserved —
Preliminary