Nortel Millennium multi-pay M1211, Installation, Operation And Maintenance Manual

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Glossary G-3
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A term applied to the transfer of data from a primary source device,
such as a mainframe computer, to a subsidiary destination device,
such as a terminal.
DTMF
See dual tone multifrequency.
dual tone multifrequency (DTMF)
A signaling method that uses set combinations of two voice band
frequencies. One frequency is selected from a set of low frequen­
cies, and the other from a set of relatively high frequencies. This
produces the various tones heard when the user pushes the buttons
on the keypad.
EEPROM
See electrically erasable programmable read-only memory.
electrically erasable programmable read-only memory (EEPROM)
A type of memory from which data can be erased and electronically
changed. It does not require power to maintain data. Data stored in
the EEPROM of the control PCP in the terminal includes the Millen­
nium Manager and terminal telephone numbers.
electrostatic discharge (ESD)
A transfer of electrostatic charge either caused by direct contact
between two bodies that have a different electrostatic potential, or
induced by an electrostatic field. It is important to protect against
ESD as sensitive components in the terminal can be damaged.
ESD
See electrostatic discharge.
FCA
See forgotten card alarm.
FCC
Federal Communications Commission. The US government body
which regulates the American telecommunications industry.
Millennium multi-pay terminal installation, operation, and maintenance guide