PTP 800 Series User Guide
Using recovery m ode
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7- 71
Using recovery mode
This section describes how the CMU enters recovery mode and how to recover the CMU.
For a general description of the recovery mode, see
When the CMU is in recovery mode, it cannot be recovered via a remote network
connection. It can only be recovered from a PC that is directly connected to the
Management port using the default IP address 169.254.1.1.
Entering recovery mode
When the CMU Modem LED (
) blinks red, the CMU has entered recovery mode
automatically. The CMU may enter recovery mode automatically in the following
circumstances:
•
When a checksum error occurs for the main application software image.
•
When the Short Power Cycle for Recovery attribute is enabled (
), the CMU is
power cycled and the “off” period is between one and five seconds.
To enter recovery mode manually, proceed as follows:
1
Power off the CMU.
2
Press the CMU front panel Recovery button (
3
Keep the Recovery button pressed while powering on the CMU. Keep the
Recovery button pressed for at least 20 seconds after powering on.
4
Wait until the CMU Modem LED blinks red, indicating that the CMU is in recovery
mode.
5
Proceed with recovery options, as described below.
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 ...