Let me guess, they only take a CMM4 aligned pulse?
On 11/9/2015 4:21 PM, Forrest Christian (List Account) wrote:
We have recently become aware of a potential issue when using a
SyncInjector with a PMP450i. The short version of this issue is that
with certain cable runs (mostly longer ones), a PMP450i will refuse to
accept the sync from the SyncInjector as valid, even though the pulse
is perfectly valid and should be accepted by the PMP450i.
Currently, there are two ways this can be fixed. Since the pulse is
valid, but just not recognized as valid by the currently shipping
PMP450i firmware, Cambium could fix this in software. I believe they
are currently investigating this as an issue, and I honestly expect
them to release a fix assuming it isn't a major issue to do so. If
this happens, it should address all of the existing SyncInjectors in
the field which our customers may want to use in the future with a a
PMP450i.
The second way to fix this issue is for us to modify our sync pulse
slightly so that it is in line with what the PMP450i is expecting.
Because this modification has some additional benefits beyond better
interoperability with the current PMP450i firmware (such as the
modified pulse being less likely to induct noise into adjoining
cables), we have decided to proceed down this path as well.
During the next week or so, we will begin shipping Revision I0 of our
Gigabit SyncInjector Product. The first of these are currently
working their way through our assembly line. This version contains
improved support for voltages above 58V and also the waveform
modification mentioned above. It should be functionally identical to
the earlier Revision H0 SyncInjectors. It is not our intention to
update our non-gigabit injectors at this time.
If you are currently having problems with sync over power on a Gigabit
SyncInjector and a PMP450i, please send an email into
[email protected] <mailto:[email protected]> and we will
work with you to ensure you have hardware which will work with your
hardware.
--
*Forrest Christian* /CEO//, PacketFlux Technologies, Inc./
Tel: 406-449-3345 | Address: 3577 Countryside Road, Helena, MT 59602
[email protected] <mailto:[email protected]> |
http://www.packetflux.com <http://www.packetflux.com/>
<http://www.linkedin.com/in/fwchristian>
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