Dc Power Supply; Table 11: Electrical Specifications For Ac Power Supply - Juniper M40E Hardware Manual

DC Power Supply

Copyright © 2010, Juniper Networks, Inc.

Table 11: Electrical Specifications for AC Power Supply

Description
Maximum power output
AC input voltage
AC input line frequency
AC input current rating
Output voltages
NOTE: An AC-powered router can use only 220 VAC power (nominal range
200–240 VAC), not 110 VAC power (nominal range 100–120 VAC).
A DC-powered router has two load-sharing, pass-through DC power supplies, located
at the bottom rear of the chassis, as shown in "M40e Chassis Description" on page 8.
Each DC power supply has the components (see Figure 30 on page 46):
LEDs—Indicate power supply status. There is a green one labeled
labeled , and an yellow one labeled
OUTPUT OK
the LED states.
In addition, power supply failure triggers the red alarm LED on the craft interface and
the relay contact on the CIP. See "M40e Craft Interface Alarm LEDs and
RED ALARM
Controls" on page 35.
Self-test button—Tests the power supply. Do not press this button; it is for use by
qualified service personnel only.
Specification
2900 W; isolated
3100 W; isolated
Nominal: 200 VAC, 208 VAC, 220 VAC, 240 VAC
Operating range: 180 to 264 VAC (2900 W)
Operating range: 198 to 264 VAC (3100 W)
47 to 63 Hz
15 A @ 200 V
13 A @ 240 V
+48 V @ 7.3 A (cooling system), +8 V @ 6 A (bias), –50 V @ 50 A
isolated
CB OFF
Chapter 2: M40e Hardware Components
, a blue one
CB ON
. Table 12 on page 46 describes
45