ZOLL E Series Monitor Defibrillator Rev D - Manual (Page 107)

E Series Service Manual
9650-1450-01 Rev. D 4-11
System Interconnect Module
The system interconnect PWBA receives signals from the Main System Board and in turn controls operation of the stripchart recorder and PCMCIA
functions.
Stripchart Recorder
The Stripchart Recorder module includes a microprocessor, serial interface to the main system board and circuitry which drive the stripchart recorder’s
motor and printhead in response to the main CPU signals. Based upon signals sent by the main CPU, the recorder’s main processor drives the recorder
stripchart motor, formats data for printing on the chart and drives the printhead. It also detects when the sensor drawer is not properly fitted into the unit,
when the paper supply is out and needs to be refilled and the print head temperature.
PCMCIA Slots
The PCMCIA interface module supports two PCMCIA slots which accept Type I and/or Type II PCMCIA cards. These cards may be read or written to.
Data sent by the main CPU is passed to the installed PCMCIA card via the system interconnect PWBA.
Front Panel and Controls PWBA
The User Interface Module provides several functions that enable the user to operate the unit. The user interface has a display monitor and three rotary
selector switches. One selector switch is for three modes: pacer, monitor and defibrillation. The two other knobs are for pacer output and pacer rate. The
unit interface also has specific buttons for defibrillation, including the ENERGY SELECT button, the CHARGE button, the ANALYZE button and the
SHOCK button. The five softkeys underneath the display provide specific operations depending on the unit’s configuration. The other push buttons (from
left to right) are used for volume control, monitor illumination, summary report, and code markers. The CHARGER ON indicator displays the status of the
unit’s power supply.
This input module on the front panel and the Main System Board provides a beeper for the AC/DC Power/Battery Charger.
The Controls PWBA is physically located in the front panel assembly. Units that are equipped for voice recording include a microphone and audio signal
conditioning circuitry on the Controls PWBA.
Isolated Power Supply Module
The Isolated Power Supply Module provides electrically isolated power to the EtCO
2
and SpO
2
modules. It also provides the electrically isolated serial
communications and isolated control signals between the EtCO
2
and SpO
2
modules and the main system PWBA.