Rev. 2 95
Glossary
Abbreviations and Acronyms Used in This Manual
Term Meaning
AC; ac
Alternating Current; strictly, electrical current that periodically reverses
direction. Typically used also to describe an electrical power source in
terms of the voltage. For example, 240 Vac.
ASCII
American Standard Code for Information Interchange; numerical
representation of characters such as 'a' or '@' or an action (such as
line-feed); 'plain' raw text with no formatting such as tabs, bold or
underscoring
BNC
connector
A miniature quick connect/disconnect RF connector used for coaxial
cable, featuring two bayonet lugs on the female connector.
CR Text Carriage-Return character
Cryogen
A substance for obtaining low temperatures. in the case of use with the
Model 1700 instrument, a cryogen is a liquefied gas such as liquid
nitrogen or liquid helium.
D-Sub
Term referring to the family of connectors containing an odd number of
pins in two parallel rows with a 1-pin difference in pins-per-row (DB9,
DB15, and DB25 are most common)
DB9
Type of electrical connector containing 9 pins arranged in two parallel
rows of 4 pins and 5 pins each
DCE
Data Circuit-terminating Equipment - a device that sits between the
Data Terminal Equipment (DTE) and a data transmission circuit.
DHCP
Dynamic Host Configuration Protocol; a computer networking protocol
which dynamically distributes the IP address to networked devices
dt Rate of change
DTE
Data Terminal Equipment - an end instrument that converts user
information into signals or reconverts received signals. A DTE device
communicates with the Data Circuit-terminating Equipment (DCE).
ECL
Electrical Connection Lubricant - also known as Dielectric Tune-up
Grease, a protective lubricant that prevents corrosion.
E
o
Power supply output voltage
i, I Electrical current flow
I
o
Power supply output current
IEC International Electrotechnical Commission
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