Uip Main Interconnect Board Isa Interface Circuitry; Uip Display Module, Com1, Com2/Lpt1, And Utility Circuitry; Uip Com3 Circuitry - Bayer HealthCare RapidPoint 400 Series Service Manual

UIP Main Interconnect Board ISA Interface Circuitry

This section of the Main board contains the circuitry to connect the UIP
processor to the Main board through the Main Interconnect board. The
connection is through a 98-pin industry standard architecture (ISA)
connector, J1.

UIP Display Module, COM1, COM2/LPT1, and Utility Circuitry

This section of the Main board contains the signals to connect the UIP
processor to the Main board through various cables. Connector J16
contains the COM1 serial port signals. These signals originate on the UIP
Processor board and exit the Main board through J6. This Main board
section controls the touch panel on the display module assembly.
Connector J19 contains the COM2 serial port signals. These signals
originate on the UIP Processor board and exit the Main board through
20-pin connector, J2. This provides the LIS communications port on the
Rear Interconnect board assembly.
Connector J19 also contains the LPT1 parallel port signals. These signals
originate on the UIP Processor board and exit the Main board through J6.
This circuit transmits data to the thermal printer on the display module
assembly.
The utility connector, J17, on the UIP Processor board utility allows the
power supply to warn the board of an impending power failure through
signal PWRFAILX-. This connector also allows the onboard speaker signal
to exit the Main board through J6 on its way to the speaker located behind
the LCD on the display module assembly.
Connector J18 is the UIP Processor board flat panel interface. J18 sends
an upper and lower data byte and control signals to the LCD through series
resistor terminators RN9 and RN25.

UIP COM3 Circuitry

This section Main board contains an IC U36, which is a USART. The U36
allows the UIP Processor board to have a third RS-232C serial port. This
IC 16C550 is a standard PC compatible component and has full modem
signals with programmable baud rates to 19,200 kilobaud.
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