Proface PS4800 - 19 Panel PC" - Manual (Page 116)

Hardware Modifications
116
The figure shows an Industrial Personal Computer equipped with the UPS option:
1 UPS Battery Unit
2 UPS Connection Cable 3 m (9.84 ft)
3 Industrial Personal Computer with integrated UPS Interface Board
NOTE: When using an Industrial Personal Computer with UPS Interface Board,
connect the UPS Battery Unit before starting up the Industrial Personal Computer.
If the Industrial Personal Computer is started before the UPS Battery Unit is
connected, a system error will occur and the buzzer will sound, so please use
caution.
The main features of the UPS option are:
 Long-lasting, maintenance-free rechargeable batteries
 Communication via integrated interfaces
 Temperature sensor
 Deep discharge protection
NOTE: The UPS Interface Board can only be operated in the interface module slot
1 (see page 126).