it myself. Thanks for answering, Rich.
Doug Massey
LXE, Inc.
-Original Message-
From: Rich Nute [mailto:ri...@sdd.hp.com]
Sent: Thursday, November 30, 2000 12:16 PM
To: geor...@lexmark.com
Cc: emc-p...@majordomo.ieee.org
Subject: Re: Polarity Markings on AC Adapters
Hi George
Subject: Polarity Markings on AC Adapters
To the safety professionals
I need some input on a subject for which I am no expert.
Typically, our AC adapter suppliers provide units with polarity
symbols a la:
- +
O-C-O
...where the -/+ signs are within the circles
Hi George:
Thanks for the quick response! Does this mean that the symbology is only
a Japan requirement? and does it apply to ITE as well as
audio-visual
equipment?
The referenced standard, EIAJ CP1104, is similar
to IEC 417. Indeed, EIAJ CP1104 contains many
Rich,
Thanks for the quick response! Does this mean that the symbology is only
a Japan requirement? and does it apply to ITE as well as
audio-visual
equipment?
Yes, I would appreciate a copy by email, or fax to 859 232 6882.
Regards, George
Hi George:
The dc polarity symbol
Hi George:
The dc polarity symbol is specified in:
Symbol 01060 (taken from JEIDA 11)
EIAJ CP-1104 (1998)
Terms and Grpahical Symbols for Audio and Audio-Visual Equipment
Technical Standardization Committee on Audio-Visual Equipment and Systems
Electronic Industries
To the safety professionals
I need some input on a subject for which I am no expert.
Typically, our AC adapter suppliers provide units with polarity
symbols a la:
- +
O-C-O
...where the -/+ signs are within the circles. The C represents
the outside of a
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