Rear Panel; S3952P-Pwr-Ei Ethernet Switch; Front Panel; Figure 1-16 Rear Panel Of The S3952P-Ei - Huawei Quidway S3900 Series Installation Manual

Installation Manual
Quidway S3900 Series Ethernet Switches

1.9.2 Rear Panel

The S3952P-EI has an AC-input power socket, a DC-input power socket and a
grounding screw on its rear panel, as shown in Figure 1-16.
(1) AC-input power socket

Figure 1-16 Rear panel of the S3952P-EI

AC-input ranges:
Rated voltage: 100 to 240 VAC; 50 to 60 Hz
Max. tolerance: 90 to 264 VAC; 50 to 60 Hz
DC-input ranges:
Rated voltage: -48 to -60 VDC
Max. tolerance: -36 to -72 VDC

1.10 S3952P-PWR-EI Ethernet Switch

1.10.1 Front Panel

I. Schematic diagram
On its front panel the S3928P-PWR-EI provides 48 x 10Base-T/100Base-TX Ethernet
ports, four 1000 Mbps SFP ports, and one Console port, as shown in Figure 1-17:
(1) 48 x 10Base-T/100Base-TX Ethernet port status LEDs
(2) Four 1000 Mbps SFP port status LEDs
(3) Console port
(5) Port mode LED
(7) AC-input power LED

Figure 1-17 Front panel of the S3952P-PWR-EI

（1） （1） （2） （2）
(2) DC-input power socket
(1) (1)
Huawei Technologies Proprietary
(3) (3)
(4) (4)
(2) (2)
(4) 7-segment digitron display
(6) Mode button
(8) DC-input power LED
1-35
Chapter 1 Product Overview
（3） （3）
(3) Grounding screw
(5) (5) (6) (6)
(8) (8)
(7) (7)