Link planning
Chapt er 2: Planning considerat ions
2- 4
phn- 2513_004v000 ( Oct 2012)
Power supply considerations
Confirm that the planned site has a power supply that meets the following requirements:
•
It is possible to remove power from the CMU and IRFU (if installed) without disrupting
other equipment, for example a circuit breaker.
•
If the link is protected, it is possible to remove power from one PTP 800 without
disrupting the other PTP 800.
•
Circuit breakers and switches are clearly labeled.
•
Wiring from the power source to the PTP 800 is sized accordingly.
•
All supply wiring conforms to national standards and best practice.
•
A rack mounted power supply is grounded in accordance with national standards and
best practice.
For more information, refer to
AC to DC converter specifications
on page
Provide a 4 Amp fuse or similar protection device between the –48 V dc supply source
and the PTP 800 CMU and IRFU (if installed).
Always ensure that the power supply is turned off before attempting any service on the
PTP 800 installation.
The CMU and IRFU (if installed) are positive ground and the DC power supply or battery
must also be positive ground or isolated.
Summary of Contents for PTP 800 Series
Page 1: ...Cambium PTP 800 Series User Guide System Release 800 05 02 ...
Page 40: ...Licensing requirements About This User Guide 10 phn 2513_004v000 Oct 2012 ...
Page 232: ...Limit of liability Chapter 3 Legal information 3 22 phn 2513_004v000 Oct 2012 ...
Page 322: ...Radiation hazard assessm ent Chapter 4 Reference information 4 90 phn 2513_004v000 Oct 2012 ...
Page 428: ...Replacing IRFU components Chapter 5 Installation 5 106 phn 2513_004v000 Oct 2012 ...
Page 630: ...Using recovery mode Chapter 7 Operation 7 78 phn 2513_004v000 Oct 2012 ...