System Interconnect Module; Stripchart Recorder; Pcmcia Slots; Front Panel And Controls Pwba - ZOLL M Series Service Manual

M Series Service Manual

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

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.
106