[ntp:questions] Motorola Oncore GPS as Stratum 1 source

David Lord snews at lordynet.org
Wed Oct 17 14:57:09 UTC 2012

Hahn, Ron wrote:
> Colleagues,
> I am putting together some Motorola Oncore UT+ boards to replace my Sure boards in my ntp servers.  I am using this http://www.tapr.org/gps_vpib.html board as the templat for the interface circuits.  The circuit calls for a BR2325 battery which I cannot find in the local parts store.  Is there a person on this list with experiences of this board design that can tell me what I can substitute for this part?  Or maybe it is not necessary?  I am not even sure if the battery is necessary but from my experiences the boards go from a cold start whenever power is interrupting. One of my servers is part of the ntp pool so I am needing the rapid recovery if the power is interrupted. My systems are on the UPS so maybe this battery is not required?  
> Thanks for the helping hands,
> Ron

in UK they're listed by both Farnell and Electrocomponents both
having overseas branches.

# Battery Size Code: 2325
# Battery Capacity: 165mAh
# Battery Voltage: 3V
# Battery Technology: Lithium Polymer
# Battery Terminals: Pressure Contact
# External Diameter: 23mm
# External Height: 2.5mm
# External Width: 23mm
# External Depth: 2.5mm
# Weight: 3.2g
# Body Diameter: 23mm
# Depth: 2.5mm
# External Length / Height: 2.5mm
# Operating Temperature Max: 80°C
# Operating Temperature Min: -30°C
# Output Voltage: 3V
# Pack Quantity: 1

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