Table 30: Power System Electrical Specifications
(continued)
Specification
Item
28 A @ 100 VAC (15 A top inlet, 13 A bottom inlet)
14 A @ 240 VAC
AC system current rating
(per power supply)
—
Operating range: –40.0 to –72 VDC
NOTE: If the input voltage from the DC power source drops below
-37.5 to -39.5 VDC, the router automatically shuts down. During
automatic shutdown, the circuit remains active. When the input
voltage returns to –43.0 to –44.00 VDC, the router automatically
starts up again and the system returns to normal operation within
30 minutes. No operator intervention is required.
DC input voltage
48 A @ –48 VDC (nominal)
DC system current rating
(per power supply)
Table 31: AC Power Supply Electrical Specifications
Specification
Item
2100 W
Maximum output power
Operating range: 100 to 240 VAC (nominal)
AC input voltage
47 to 63 Hz
AC input line frequency
28 A @ 100 VAC (15 A top inlet, 13 A bottom inlet)
14 A @ 240 VAC
AC input current rating
Table 32: DC Power Supply Electrical Specifications
Specification
Item
2100 W
Maximum output power
Nominal: –48 VDC, –60 VDC
Operating range: –40.0 to –72 VDC
DC input voltage
60 A @ –48 VDC
DC input current rating
60 A
Internal Supplementary
Protector
Copyright © 2010, Juniper Networks, Inc.
238
M120 Multiservice Edge Router Hardware Guide
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