Connect Power To A Dc Router With Normal-Capacity Power Supplies - Juniper MX480 Quick Manual

MX480 3D Universal Edge Router Quick Start

Connect Power to a DC Router with Normal-Capacity Power Supplies

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supply is correctly installed and functioning normally, the
steadily and the
PS FAIL
Figure 9: Installing an AC Power Supply
Table 2: MX480 DC Power System Input Voltage
Item
DC input voltage
Ensure that the voltage across the DC power source cable leads is 0 V and that there
1.
is no chance that the cable leads might become active during installation.
Secure the power cable lugs to the terminal studs, first with the split washer, then
2.
with the nut. Apply between 23 lb-in. (2.6 Nm) and 25 lb-in. (2.8 Nm) of torque to
each nut. Do not overtighten the nut. (Use a 7/16-in. [11 mm] torque-controlled driver
or socket wrench.)
Attach the positive (+) DC source power cable lug to the
a.
Attach the negative (–) DC source power cable lug to the
b.
LED is not lit.
Specification
Operating range: –40.5 to –72 VDC
and LEDs light
AC OK DC OK
(return) terminal.
RTN
–48V (input) terminal.
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