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I vote to place informative information in
two Appendices to the Standard, but not to include any Normative requirements.
The two Appendices would be for AC line current and 12 volt DC supplies. Alex Schneider From: upamd@xxxxxxxx
[mailto:upamd@xxxxxxxx] On Behalf Of Bob
Davis UPAMD, At
the meeting on Tuesday, and in the Power Subcommittee meeting, the issue of
specification of the input power to a UPAMD device, acting as a normal source
device has been raised. This straw ballot is to gather the opinions of
the larger group as to how to specify power input requirements, if at all. The
question from the UPAMD meeting is: Should we include source power
requirements for UPAMD device? 1.
Shall we specify AC input power
requirements as shown in Section 11 of draft? 2.
Shall we specify DC input power
requirements? 3.
Shall we specify NO input
requirements? Background: The
AC input requirements currently included in the draft Section 11, was
contributed by Lee Atkinson early in the process of creating the draft. It
represents a input specification for current AC powered, power units for laptop
computers. Since
that time the committee has opened the input to AC and DC sources of a varied
nature. This could mean a expanding set of input requirements
depending on the source and the geopolitical usage environment. Paul
has farther commented: “UPAMD-compliant power adapters are designed to
accept flexible input power sources. They may accept AC input or DC
input, or they may have multiple input power sources of any type. For
example, a UPAMD power adapter may accept input power from a wall socket as
well as from an internal battery. Another power adapter may only accept a
12V car battery input. The current draft of the UPAMD specification has
defined input power requirements only for AC input. The current draft
only states that DC input sources, if utilized, must properly comply with all
the provisions in the specification, including the low-energy connect
requirements.” Please
send your straw ballot comments and selection to upamd-vote@xxxxxxxx.
As this is a straw ballot the response is not restricted to the current voting
members. Your opinions do count. Respectfully; Bob
Davis Chair
UPAMD/P1823 bobd@xxxxxxxx 408.353.5990
desk 408.857.1273
cell bob.davis.scsi.com
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