The RTN PI-DC B20 is a full-outdoor PI with high power. It uses DC power input and transmits GE electrical signals and -48 V power signals to the full-outdoor RTN 300 equipment through an
outdoor network cable.
A
Appearance and Ports
Maintenance
compartment
opened
Port
area
DIP switches for
setting the power
output mode
DIP switches for
setting the number
of P&E outputs
DC output port
DC input port
Side view
PGND ground point
Power cable
stripping indicator
P&E port
indicators
P&E ports
GE ports
DIP switches for
setting the P&E
mode
B
Port Description
The pin assignments for Ethernet service signals in the ports GE1 and GE2 are consistent with those in
the ports P&E1 and P&E2. These ports all support the MDI, MDI-X, and auto-MDI/MDI-X modes.
Whether the P&E ports use MDI or MDI-X mode to transmit Ethernet service signals does not affect the
pin assignments for power signals.
Pin assignments for power signals in the P&E ports
Pin
1
2
3
4
5
6
7
8
C
Indicator Status Description
Indicator
POWER
DC OUT
P&E OUT
The P&E1 OUT and P&E2 OUT indicators inside a PI indicate the output status of the corresponding
ports. Their meanings are the same as the meaning of the P&E OUT indicator on the side of the PI.