N93-582-01 Issue 1 NH Page 17 of 42 © Protec Fire Detection plc 2015
9.8 Connecting the Standby Batteries
The two standby batteries must be connected in series with the battery link provided. Then,
observing correct polarity ( red lead to the positive of one battery and black lead to the negative of
the other battery ), carefully push the spade connectors of the battery leads onto the relevant battery
terminals ( illustrated in figure 9.5 ).
Please note that at this point the Digilite® DL500 will not power up until the mains supply is
connected.
Figure 9.5 Standby battery connections
OBSERVE POLARITY WHEN CONNECTING THE BATTERY LEADS
Red
battery
lead
Black
battery
lead
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