8 Chapter 2 Installation Instruction
NetSure 731 A91 Subrack Power System User Manual
2.4.4 Connecting Battery Cables
Note
1. The batteries may have dangerous current. Before connecting battery cables, make sure that the battery MCBs at the battery
side are switched off.
2. If there are no battery MCBs at the battery side, users should disconnect any one of the connectors between battery cells to
avoid live state of the system after installation.
3.Be careful not to reversely connect the battery. Otherwise, both the battery and the system will be damaged.
4.It's forbidden to disassemble battery cables in the up of the battery MCB when the battery input port is still connected.
1. Connect one end of the negative battery cable to the upper terminal of battery MCBs. Connect one end of the
positive battery cable to the DC positive bus bar.
2. Connect copper lugs to the other end of the battery cables. Bind the connecting parts with insulating tape, and put
them beside the battery. Connect the cables to the battery when the DC distribution unit is to be tested. As shown in
Figure 2-8.
Figure 2-8 Illustration of the battery connection terminal
2.4.5 Connecting Signal Cables
Connecting NetSure 731 A91-S1/S3 Signal Cables
The standard configuration of the system is M830B controller. The MA4C5U31 user interface board is used for
M830B. M830B controller and MA4C5U31 user interface board cable connection is show in the following:
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