Fresenius Medical Care 2008k Technical Manual page 32

Section IV – Electronic Circuit Description
REAR PANEL OPERATING ELEMENTS
LOUDSPEAKER - The machine can make two kinds of sounds: a warning sound, and an alarm
sound. The two sounds are quite distinct; the first one is used for lower priority alarms, and the
second for more important alarms.
SERIAL INTERFACE - standard RS 232 serial interface connector; hard wired, used for display
terminal connection.
POWER FAILURE ALARM - 9V alkaline battery for main power failure
HYDRAULIC CONNECTION PANEL
TO DIALYZER - tubing to dialyzer (blue dialyzer quick connector)
FROM DIALYZER - tubing from dialyzer (red dialyzer quick connector)
WATER INLET - hose for water inlet
TO DRAIN - outlet hose to drain
GROUND - fixing screw for potential equalization
POWER SUPPLY PANEL
HEATER BREAKER - circuit breaker for heater element
MAIN BREAKER - main line voltage switch
POWER CABLE - cable connection to wall socket
2008K Technician's Manual IV-3