Cisco 12404 Installation And Configuration Manual page 276

Product Architecture
A PFC allows the PEM to accept DC power source voltage from an AC power
source operating between 100 to 120 VAC, 15-Amp service in North America;
and a range of 185 to 264 VAC, 10-Amp service in an international environment.
Attach each DC PDU be connected to an independent power source for full
Note
redundancy. Use an uninterruptable power source (UPS) to protect against power
failures at your site.
Figure A-7
1
2
3
4
Each DC PDU should be connected to separate DC sources using six threaded
terminals. Two terminals for negative (source DC), two terminals for positive
(source DC return), and two terminals for ground. The DC power cable leads
should be 4 American Wiring Gauge (AWG) high strand count wire. The PEM
accepts DC power source voltage from a dedicated 35–Amp service DC power
source operating between -48 to -60 VDC nominal input voltage and -40 to -72
VDC steady-state input voltage.
Cisco 12404 Internet Router Installation and Configuration Guide
A-24
DC Power PEM and PDU Assembly
1
IN PU T
– 48 /6 0V
35 A
7 5
3 6
DC PDU
DC PEM
PEM captive screws
LEDs
2 3
IN PU T
OU TP UT
OU TP UT
OK
OK
FA IL
4
5
On/Off switch
6 PDU captive screws
7 Terminal block
Appendix A Technical Specifications
OL-11636-01