Motorola PTP 400 Series - Manual (Page 30)

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3.3.2 The PIDU Plus – PTP 400 Series
The PTP 400 Series Bridge PIDU Plus is used to generate the ODU supply voltage from the
mains supply. The PIDU Plus also houses a status indicator driven from the ODU.
Figure 3 - Power Indoor Unit (PIDU Plus) – PTP 400 Series
The front panel contains indicators showing the status of the power and Ethernet
connections. The power indicator is illuminated when the PIDU Plus is receiving mains power.
The Ethernet indicator normally illuminates when the Ethernet link is working, flashing when
there is Ethernet activity. The fact that it lights also indicates that the ODU is powered. At
power up the LED will flash 10 times to indicate that a correct start up sequence has
occurred. See Section 9 for further fault finding information.
The bottom of the PIDU Plus houses the Ethernet connection via RJ-45 socket, an entry point
for the PIDU Plus/ODU cabling and the Recovery Switch.
Figure 4 - PTP 400 Series Bridge Recovery Switch Location