33
mixed as well).
2
．
The input battery voltage of UPS is voltage of battery pack in series, the labeled voltage is a standard value,
and it is the summation of all batteries
’
standard values in the battery pack running in series. For example,
the standard value of a single 100AH/12DC is 12VDC rather than measured value. The input voltage of
L10K3/1 battery is 360VDC, namely, 12VDC
×
30=360VDC.
3
．
Series and parallel connection of battery:
When the capacity of a single battery pack meet required backup time, then all the batteries should be
connected in series; or couples of series connected batteries should be connected in parallel, the bus
voltage of battery must be the same when connecting in parallel, capacity is equivalent to the summation of
parallel battery pack.
When connecting in series, the first battery
’
s anode is connected to the second battery
’
s cathode, the second
battery
’
s anode is connected to the second battery
’
s cathode, and so is the other battery
’
s connection.
When connecting in parallel, the battery pack
’
s anodes are connected together; the battery pack
’
s cathodes are
connected together.
Ø
Open the chassis of battery box connect according the above methods.
Ø
Install battery on the appropriate position; connect battery wire rightly according to the above connecting
methods.
Ø
Connect the cable of battery to UPS
’
s battery terminal board.
6.3.4. RS232 cable connections
Connect one end of DB9 signal cable which is distributed from UPS to the serial port of computer
’
s DB9, connect
the other end to the interface of UPS
’
s RS232. If the distance is too far to connect, then you can increase the
standard length of communication wire of D89, however, it should not exceeded 30 meters, or it can not
communicate normally.
6.3.5. RS485 cable connection
According to UPS
’
s A, B and G, use communication wires to connect the interfaces of computer's RS485 and
UPS
’
s RS485. The longest linking distance should be less than 4,000 m, or it can not communicate normally.
6.3.6. Connection method of SNMP card
The international standard of producing twisted-pair: EIA/TIA568A and EIA/TIA568B. Both ends of plug should
follow 568 A or 568 B standard.
UPS
UPS
Cathode
Connection
Input
Anode
Input
Connection
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