Motorola PTP 400 Series Manual De Usuario

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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