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Introduction
PHONE LINE
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PHONE JACK
TELEPHONE
HP 82718A
Telephone Company Rights and Responsibilities
The circuitry in your HP 82 718A is designed to protect both the phone line and the modem from damage
caused by high voltages, and is approved by the Federal Communications Commission. However, the
telephone company has the legal right to discontinue service if the HP 8271 8A should somehow cause
harm to the telephone network. In this case, the telephone company will:
• Promptly notify you of the service interruption.
• Give you the opportunity to correct the situation that caused service to stop.
• Inform you of your right to bring a complaint to the FCC concerning the service interruption.
The telephone company may make changes in its facilities and services which may affect the operation of
your equipment.
However, you will be given adequate notice in writing to allow you to maintain
uninterrupted service.
Identifying Problems
If you have problems with normal telephone calls when the HP 82718A is connected to the line (but not
in use), you must determine if the HP 82 718A is the cause. Disconnect your unit from the phone line. If
the trouble continues, contact your telephone company to have your line checked.
If the trouble stops when the HP 82718A is disconnected, you will need to have your unit repaired.
Obtaining service is described in appendix A.
Do not attempt to service the HP 8271 8A yourself. Doing so is a violation of FCC rules and may result
in damage to the telephone network.
HOW TO USE THIS MANUAL
This manual is written primarily as a reference for application programmers, and not as a tutorial. The
examples, with a heavy emphasis on programmatic use of the commands available in the HP 82718A,
assume that you are well-versed in HP-7S BASIC language programming and the operation of the
HP-7S.
The bulk of the applications written will probably take advantage of the data communications, bar code,
and large memory provided by the combination of the HP-7SD and HP 8271 8A. As such, the manual
assumes that you understand data communications and the uses of machine-readable (bar code) labels.
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