Specifications

Confidential
EPSON
TITLE
SHEET
REVISION
NO.
SHEET NEXT
A
SR-600
Specification
(STANDARD)
9 8
3.7 Power Supply
3.7.1 Power supply capacity to external devices
Total power available to devices connected to the interface boards (PCI slots, COM1 and 2 ports,
keyboard/mouse, customer display, and the USB ports) is as follows. Current drain must not exceed
the capacity shown for each supply voltage: +5, +3.3, +12, –12 and +24 volts.
Table 3.1 Power Supply Capacities
Power Supply Used for Capacity
+5 VDC PCI slots, COM ports, keyboard, FDD, USB 2.5 A
+3.3 VDC PCI slots 0.5 A
+12 VDC PCI slots, DMD 0.7 A
–12 VDC PCI slots 0.25 A
+24 VDC Cash drawer 0.5 A, peak 2.0 A
Each port has the following current limitation:
Table 3.2 Power Supply Capacities for Each Port
Port Voltage Current Supply Capacity Remarks
COM port +5 VDC 400 mA each
USB port +5 VDC 500 mA each
Keyboard +5 VDC 500 mA
PCI slots +5 VDC 1A
FDD +5 VDC 500 mA
Total current at +5 VDC
must not exceed 2.5 A
PCI slots +12 VDC 500 mA
DMD +12 VDC 600 mA
Total current at +12 VDC
must not exceed 700 mA
3.7.2 Lithium rechargeable battery
The Bacchus is internally equipped with a vanadium-lithium rechargeable battery, which supplies the
backup voltage to the RTC, the RTC’s built-in CMOS RAM.
Charging period: 40 hours or more
Backup time: 200 days or more
WARNING:
Don’t attempt to open or disassemble the Vanadium-lithium battery, which could result
in burns or release of hazardous chemicals.
Don’t charge or leave the vanadium-lithium battery in a hot place, such as near a fire or
on a heater, as it could overheat and ignite.
When you dispose of the vanadium-lithium battery, insulate it by wrapping the terminals
with tape. Do not mix with other metals or batteries; this may lead to fire, heat, or
explosion.
Vanadium-lithium batteries are not charged fully on delivery from the factory.
As a result, BIOS may display ‘cmos check sum error’.