Juniper CBL-M40-PWR-AU ユーザーズマニュアル
Disconnect and Connect DC Power
M40 Internet Router Hardware Guide
150
Figure 64: Power Switch on a DC Power Supply in the OFF Position
5.
If the protective shield is installed over the power supply terminals, use a Phillips
screwdriver to loosen and remove the screws that secure the shield to the power supply
(see Figure 65).
screwdriver to loosen and remove the screws that secure the shield to the power supply
(see Figure 65).
Figure 65: Remove the Protective Shield from the Terminal Studs
6.
Slide the power cable lugs onto the terminal studs on the power supply faceplate (see
Figure 66):
Figure 66):
Connect the positive (+) source cable lug to the return terminal, which is labeled
RTN
.
Connect the negative (–) source cable lug to the input terminal, which is labeled
–48V
.
Run the power cables to the left on the left power supply, and to the right on the right
power supply. This arrangement enables you to replace a power supply without having
to detach the cables from the other power supply.
power supply. This arrangement enables you to replace a power supply without having
to detach the cables from the other power supply.
.
1128a
Power switch
.
Protective shield
Washer
1130
There is no standard color coding for DC power cables. The
color coding used by the external DC power source at your
site determines the color coding for the leads on the power
cables that attach to the circuit breaker box. You must
ensure that the connections at the circuit breaker box
maintain the proper polarity. The power source DC cables
might be labeled
color coding used by the external DC power source at your
site determines the color coding for the leads on the power
cables that attach to the circuit breaker box. You must
ensure that the connections at the circuit breaker box
maintain the proper polarity. The power source DC cables
might be labeled
(+)
and
(–)
to indicate their polarity.