Juniper ACX6160 Hardware Manual page 68

8. Connect each power supply to the power sources. Secure power source cables to the power
supplies by screwing the ring lugs attached to the cables to the appropriate terminals by using the
screw from the terminals (see
designed to operate with a DC power supply that has a single, nonredundant, feed input. For source
redundancy, two DC power supplies must be installed; connect source (A) to one power supply and
connect source (B) to the second power supply. This configuration provides the commonly
deployed A/B feed redundancy for the system.
The terminal block of the power supply has four terminals labeled V+, V+, V–, and V– for
connecting DC power source cables labeled positive (+) and negative (–). The V+ terminals are
shunted internally together, as are the V– terminals.
CAUTION: The connection between each power source and power supply must
include a circuit breaker.
Do not connect two sources to a single power supply because doing so can
potentially cause circulating current in feed wires whenever there is any difference
in the voltage of the two sources.
a. Secure the ring lug of the positive (+) DC power source cable to the V+ terminal on the DC
power supply.
b. Secure the ring lug of the negative (–) DC power source cable to the V– terminal on the DC
power supply.
Figure 22 on page 61 and Figure 23 on page 61). The ACX6160 is
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