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n
The M1700A and M1701A load software from, and store ECGs to,
the disk drive. The M1702A software is in ROM, and does not
store ECGs.
n
The M1700A and M1701A patient modules feature a display that
indicates signal quality and a start button. The M1702A patient
module does not offer these features.
All other model differences are found in the cardiograph's software.
The M1700A and M1701A software is installed in the cardiograph
from flexible disk, while the M1702A software is installed from ROM.
After installation,
the software is stored in dynamic RAM (DRAM).
Re-installation is required only when a user desires a different
configuration, or if DRAM loses its contents due to a low battery.
The PageWriter XL family of cardiographs is designed for long-term
reliability.
The modular clesign makes extensive use of VLSI and
gate array technology, resulting in a minimum number of major
subassemblies. The modular approach means less down-time for the
user, since replacing subassemblies allows quicker field repairs. The
-
extended self-test efficiently identifies faulty subassemblies, further
speeding the repair process.
Note
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As of February 1992, all new PageWriter XL cardiographs are
manufactured to a revised mechanical design specification. All units
having a serial number prefix of 3208A or later conform to this
revised specification. This manual describes all specific differences.
The following paragraphs describe some of the significant options
available for the PageWriter XL cardiographs.
M1705A Cart
The M1705A Cart provides mobility for the PageWriter XL family
of cardiographs. The large wheels make the cart easy to move, yet
steady when in use. Slots in the cardiograph's feet and a thumbscrew
secure the cardiograph to the cart rails, The tray directly below the
cardiograph provides storage for acquired ECGs, the user's guide,
and several flexible disks. The tray also has molded fittings that
accommodate the modem in the M170GA/B Telecommunications
Package. Storage for the power cable is built in, and other built-in
cable retainers hold the patient clata cable out of the way. Two
compartmented trays provide storage for the patient module,
spare patient electrodes and leaclwires, additional thermal paper,
consumable supplies, and miscellaneous items. An optional paper
management tray is also available for the M1705A.
Introduction
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Troubleshooting
