GE MAC 800 User manual

Service Manual
2031504-159 Revision D
GE Healthcare
MAC™ 800
Resting ECG Analysis System
Software Version 1

T-2 MAC™ 800 2031504-159D
15 January 2010
NOTE
This manual applies to the MAC™ 800 software version 1. Due to continuing product innovation, specifications
in this manual are subject to change without notice.
CardioSoft, CASE, Hookup Advisor, MAC, Mactrode, MUSEand 12SL are trademarks owned by GE Medical
Systems Information Technologies, a division of General Electric Company going to market as GE Healthcare.
All other marks are not owned by GE and are instead owned by their respective owners.
© 2008–2010 General Electric Company. All rights reserved.

2031504-159D MAC™ 800 i
Contents
1 Introduction
Manual Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Manual Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Warnings, Cautions, and Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Equipment Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
Responsibility of the Manufacturer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
Equipment Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
Product Label Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
Serial Number Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
Service Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
2 Equipment Overview
General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Front View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
Side View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
Back View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
Detailed Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7
Hardware/firmware Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
Product Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
Layered Structure of application software . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9
ECG Data Flow With Sampling Rates. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-10
3 Troubleshooting
General Fault Isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Power-Up Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
Poor Quality ECGs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
Visual Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
Event Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Setting Up Event Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
Exporting the Event Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5
Performing Diagnostic Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Accessing the System Diagnostics Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6

ii MAC™ 800 2031504-159D
Display Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
Speaker Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-9
Keyboard Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-9
Acquisition Module Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-10
Battery Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-11
Writer Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-11
RS232 Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-13
LAN Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-14
Modem Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-15
USB Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-15
Patient Lead Wire Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-16
Equipment Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
ECG Data Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-17
Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
Acquisition Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-18
Printer Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-18
Frequently Asked Questions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
Save System Setups to SD Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-19
Storing ECGs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-20
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-20
Battery Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-21
MAC Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-21
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-21
Location Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22
Patient Questions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22
Passwords. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-23
Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-23
Resting ECG Report Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-23
Editing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-24
Navigating the User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-24
Resting ECG Power Up Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-25
Arrhythmia Mode Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-26
Main Screen Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-26
4 Maintenance
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Recommended Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2
Required Tools and Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2
High-Level FRU Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
FRU Replacement Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Preparing System for FRU Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
Replacing the Patient Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
Replacing Barcode Reader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6
Replacing the Battery Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7
Replacing the Real-time Clock (RTC) Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8

2031504-159D MAC™ 800 iii
Replacing the Top Cover Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9
Replacing the Keypad Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-11
Replacing the LCD Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-12
Removing the Printer Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-13
Reassembling the Printer Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-15
Processing ECGs in Internal Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-16
Saving System Configuration Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-16
Removing the Mainboard Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-16
Reassembling the Mainboard Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-18
Replacing the Internal Modem (option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-19
Removing the Power Supply Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-19
Reassembling the Power Supply Assembly . . . . . . . . . . . . . . . . . . . . . . . . .4-22
Replacing the Bottom Cover Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-22
Replacing the Fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-23
Functional Checkout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24
Visual Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-25
Operational Checks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-26
Diagnostic Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-26
Electrical Safety Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-27
Updating Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-28
Conditioning the Battery Pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-30
Real-time Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
5 Parts Lists
Ordering Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Field Replaceable Units (FRUs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
MAC 800 Upper Level Assembly Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3
MAC 800 Upper Level Assembly Part List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-9
FRU Top Cover Assembly, PN 2039939-001 . . . . . . . . . . . . . . . . . . . . . . . . . . .5-13
FRU Printer Assembly, PN 2039941-001 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-13
FRU Mainboard Assembly, PN 2039942-001 . . . . . . . . . . . . . . . . . . . . . . . . . . .5-14
FRU Power Supply Assembly, PN 2040052-001 . . . . . . . . . . . . . . . . . . . . . . . . .5-14
FRU Bottom Cover Assembly, PN 2039943-001 . . . . . . . . . . . . . . . . . . . . . . . . .5-15
Model Data Matrix Barcode Scanner Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-16
Keypads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-17
Power Cords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-18
Serial Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-19
MAC800 FRU Battery Coin 3V, PN 2044674-001 . . . . . . . . . . . . . . . . . . . . . . . .5-19
FRU Kits, PN 2039945-001 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-20
A Technical Specifications
Features and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

iv MAC™ 800 2031504-159D
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5
B Electromagnetic Compatibility
Electromagnetic Compatibility (EMC) Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
Guidance and Manufacturer’s Declaration - Electromagnetic Emissions . . . . . . B-2
Guidance and Manufacturer’s Declaration - Electromagnetic Immunity . . . . . . . B-3
Guidance and Manufacturer's Declaration - Electromagnetic Immunity . . . . . . . B-3
Recommended Separation Distances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4
EMC-Compliant Cables and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-5
C Supplies & Accessories
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2
Standard Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2
Value Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2
Thermal Papers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3
Serial Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3
Country-Specific Power Cords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3
Optional Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-4

2031504-159D MAC™ 800 1-1
1Introduction

1-2 MAC™ 800 2031504-159D
Introduction
Manual Information
Revision History
The document’s part number and revision appear at the bottom of each
page. The revision identifies the document’s update level. The revision
history of this document is summarized in the following table.
Manual Purpose
This manual supplies technical information for service representatives
and technical personnel so they can maintain the equipment to the
assembly level. Use it as a guide for maintenance and electrical repairs
considered field repairable. Where necessary, the manual identifies
additional sources of relevant information and/or technical assistance.
See the MAC™ 800 Resting ECG Analysis System Operator’s Manual
(2031504-182) for the instructions necessary to operate the equipment
safely in accordance with its function and intended use.
Intended Audience
This manual is intended for persons who use, maintain, or troubleshoot
this equipment.
Warnings, Cautions, and Notes
The terms danger, warning, and caution are used throughout this
manual to identify hazards—sources of potential injury to a person—and
to designate a degree or level or seriousness. Familiarize yourself with
their definitions and significance.
Revision History, PN 2031504-159
Revision Date Comment
A 1 July 2008 Initial release of document.
B 15 August 2008 Revised product specifications.
C 24 July 2009 Updated Euopean address on back cover
Added 2GB SD Card to Parts List
Corrected IEC standards in Appendix A
Miscellaneous corrections and improvements
D 15 January 2010 Added Cell FRU number to Parts List
Add Cell FRU replacement procedure to
Maintenance Section.

Introduction
2031504-159D MAC™ 800 1-3
Equipment Information
Failure on the part of the responsible individual, hospital, or institution
using this equipment to implement a satisfactory maintenance schedule
may cause undue equipment failure and possible health hazards.
To ensure patient safety, use only parts and accessories manufactured or
recommended by GE Healthcare.
Contact GE Healthcare for information before connecting any devices to
this equipment that are not recommended in this manual.
If the installation of this equipment, in the USA, will use 240 V rather
than 120 V, the source must be a center-tapped, 240 V, single-phase
circuit.
Parts and accessories used must meet the requirements of the applicable
IEC 60601 series safety standards, and/or the system configuration must
meet the requirements of the IEC 60601-1-1 medical electrical systems
standard.
The use of accessory equipment not complying with the equivalent safety
requirements of this equipment may lead to a reduced level of safety of
the resulting system. Consideration relating to the choice shall include:
use of the accessory in the patient vicinity; and
evidence that the safety certification of the accessory has been
performed in accordance to the appropriate IEC 60601-1 and/or IEC
60601-1-1 harmonized national standard.
Safety Messages
Additional safety messages may be found throughout this manual that
provide appropriate safe operation information.
Term Definition
DANGER Indicates an imminent hazard which, if not avoided, will result in death or
serious injury.
WARNING Indicates a potential hazard or unsafe practice which, if not avoided, could
result in death or serious injury.
CAUTION Indicates a potential hazard or unsafe practice which, if not avoided, could
result in minor personal injury or product/property damage.
NOTE Provides application tips or other useful information to ensure that you get
the most from your equipment.

1-4 MAC™ 800 2031504-159D
Introduction
DANGER
FLAMMABLE HAZARD — Do not use in the presence of
flammable anesthetics.
WARNING
USE APPROPRIATE POWER SOURCE — This is a
Class I device with protective earth equipment. The mains
plug must be connected to an appropriate power supply.
WARNING
PROPER GROUNDING — Operate the unit from its
battery if the integrity of the protective earth conductor is
in doubt.
CAUTION
AUTHORIZED SERVICE PERSONNEL ONLY — This
equipment contains no user serviceable parts. Refer
servicing to qualified service personnel.
CAUTION
USE ONLY ON ORDER BY PHYSICIAN — U.S.
Federal law restricts this device to the sale by or on the
order of a physician.
Responsibility of the Manufacturer
GE is responsible for the effects of safety, reliability, and performance
only if:
assembly operations, extensions, readjustments, modifications, or
repairs are carried out by persons authorized by GE,
the electrical installation of the relevant room complies with the
requirements of the appropriate regulations, and
the equipment is used in accordance with the instructions for use.
Equipment Symbols
See the MAC™ 800 Resting ECG Analysis System Operator’s Manual
(2031504-182) for information about the symbols used on this product
and its packaging.

Introduction
2031504-159D MAC™ 800 1-5
Equipment Identification
Equipment can be identified via the product label and serial number
attached to the equipment. The following topics describe the components
of the product label and the serial number.
Product Label Format
GE product labels provide the product’s part number, model description,
serial number, manufacture date, and manufacture site. The following
illustration shows the layout of a typical product label. A description of
the label components follows the illustration.
NOTE
Actual product label may differ from this representative example.
Serial Number Format
Every GE device is uniquely identified via serial number, which appears
on the product label (see “Product Label Format” on page 1-5). The
following illustration and table describe the serial number components.
Product Label
Item Description
A Date of manufacture in YYYY-MM format
B Part number of product
C Product code description
D Serial number.
For more information, see “Serial Number Format” on page 1-5.
E Manufacture site

1-6 MAC™ 800 2031504-159D
Introduction
Service Requirements
Refer equipment servicing to GE-authorized service personnel only. Any
unauthorized attempt to repair equipment under warranty voids the
warranty.
It is the user’s responsibility to report the need for service to GE or to
one of their authorized agents.
A The product code for MAC 800 systems is SDS.
B Year Manufactured (00-99). Examples:
07 = 2007
08 = 2008
C Fiscal Week Manufactured
D Production Sequence Number
E Manufacturing Site
F Miscellaneous Characteristic

2031504-159D MAC™ 800 2-1
2Equipment Overview

2-2 MAC™ 800 2031504-159D
Equipment Overview
General Description
The MAC™ 800 is a 3- and 6-lead print, 12-channel display system with
a 7 inch (17.78 cm) diagonal display, active patient cable, battery
operation, and options for communication capabilities.
Front View
Name Description
A Screen Displays waveform and text data.
B AC LED Indicates when the unit is connected to AC power.
C Battery LED Indicates current battery status.
Solid indicates the battery is charging.
Flashing indicates the battery is low.
Off indicates the battery is fully-charged or is
discharging but not at a low state.
D Power LED Indicates when the unit is powered on.
E Keypad Controls the system or enters data. See “Keypad” on
page 2-4 for more information.
F Writer Door Button Opens printer door.
G Writer Prints reports.

Equipment Overview
2031504-159D MAC™ 800 2-3
Side View
Back View
Name Description
A ECG signal input connector Connects the patient cable to the device.
B Secure digital (SD) card
slot
Houses the secure digital (SD) card for external
storage.
Name Description
A Modem port Standard RJ-11 jack for connecting the modem to
a telephone line.

2-4 MAC™ 800 2031504-159D
Equipment Overview
Keypad
The English keypad is shown in the following illustration.
B LAN port Standard RJ-45 jack for connecting the device to a
LAN. LEDs on the port indicate status.
Solid green indicates a good connection.
Flashing amber indicates network traffic.
C USB port Universal Serial Bus port used to connect external
devices, such as the optional barcode reader.
D COMM port Serial port for data communication. Use a serial
cable to connect the unit to a CASE/Cardiosoft or
MUSE system.
E Main AC power connector Connects the unit to an AC power outlet.
F Equipotential grounding lug Grounded connector for attaching non-grounded
peripheral devices to ensure equipotentiality.
G Carry handle Retractable handle for carrying the unit.
Name Description
Name Description
A Function Keys
(F1 through F6)
Selects menu options on the screen.
BLeads key Changes the leads when the screen is being used to
display waveforms.
C Power Button Turns the unit on and off.

Equipment Overview
2031504-159D MAC™ 800 2-5
DECG key Acquires a resting ECG and prints a 10-second report
in Arrhythmia mode.
E Trimpad The arrows move the cursor left, right, up, or down.
The center button moves the focus within a window or
selects the currently active item.
FRhythm key Prints a continuous, real-time rhythm ECG strip. Press
the Stop key to stop the rhythm strip from printing.
GStop key Stops the writer from printing.
HBackspace Key Deletes characters.
ISpace Key Adds a space between typed characters.
JT9 key Switches between different input methods. For more
information on using the T9 key, refer to the MAC™
800 Operator’s Manual.
Name Description

2-6 MAC™ 800 2031504-159D
Equipment Overview
Detailed Description
Block Diagram

Equipment Overview
2031504-159D MAC™ 800 2-7
System Architecture
Overview

2-8 MAC™ 800 2031504-159D
Equipment Overview
Hardware/firmware Architecture
The MAC 800 hardware and firmware subsystems include the following:
Product Interfaces
The MAC 800 system offers the following interfaces for connecting to
external devices for data communication, software updates, and the
control of workload devices:
RS232 port (1)
Connects to external systems, like MUSE or Cardiosoft.
RJ-45 port (1)
Connects to networks via 100baseT ethernet connector via an
external medical isolator.
USB connector(2)
Connects to USB-capable devices, such as optional barcode reader or
external USB keyboard.
Secure Digital (SD) Card slot
Interfaces with a Secure Digital card, which is used to store ECGs, to
flash the device with software updates, and to connect memory /
future IO extensions.
RJ-11 port (1)
Connects an internal medical grade Analog Modem (optional) to a
phone line.
Hardware Subsystems Firmware Subsystems
CPU core
Display
Keyboard
ECG Acquisition subsystem
Thermal printer
Power supply
Housing
CE BSP (Board-Support-Package)
Printer API
Printer SW (Firmware for the Printer)
Acquisition API
Acquisition SW (Firmware for the Printer)