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S5700 Series Switches Hardware Description

This document provides an overall description of the S5700 hardware, helping you obtain detailed information about each chassis, card, power module, fan module, cable, and optical module.

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60 W AC Power Module (PAC-60WA-L)

60 W AC Power Module (PAC-60WA-L)

Product Support

Table 6-1 lists the switch models supporting a 60 W AC power module.

Table 6-1 Product support for a 60 W AC power module

Power Module Name

Product Support


S5721-28X-SI-24S-AC, S5720-28P-SI-AC, S5720-52P-SI-AC, S5720-28X-SI-AC, S5720-28X-SI-DC, S5720-52X-SI-AC, S5720-52X-SI-DC


Figure 6-1 Appearance of a 60 W AC power module


Table 6-2 describes the functions of a 60 W AC power module.

Table 6-2 Functions of a 60 W AC power module



Input protection

Provides protection against input undervoltage condition.

Output protection

Provides protection against output undervoltage, output overvoltage, output overcurrent, and output short circuit conditions.

Overtemperature protection

When the temperature of the power module exceeds a specified threshold (70°C or 158°F), the power module stops supplying power. When the temperature falls into the normal range, the power module automatically resumes power supply.

Surge protection


Hot swapping


When a power module enters overtemperature protection state, take measures to lower the temperature of the power module. The power module can automatically start supplying power again when the temperature falls within the normal range.


Figure 6-2 Panel of a 60 W AC power module

1. Handle

2. Indicator

3. Power switch

4. AC power socket

5. Captive screw

6. AC power cable locking strap



Table 6-3 describes the indicator on the 60 W AC power module panel.

Table 6-3 Indicator on the 60 W AC power module panel







  • The power input is abnormal (no input, overvoltage, or undervoltage).
  • The power output is abnormal (undervoltage or overtemperature).

Steady on: The AC power input is normal.


Table 6-4 lists technical specifications of a 60 W AC power module.

Table 6-4 Technical specifications of a 60 W AC power module



Dimensions (H x W x D)

40 mm x 100 mm x 205 mm (1.6 in. x 3.9 in. x 8.1 in.)


0.8 kg (1.76 lb)

Rated input voltage range

100 V AC to 240 V AC, 50/60 Hz

Maximum input voltage range

90 V AC to 264 V AC, 47 Hz to 63 Hz

Maximum input current

2 A

Maximum output current

5 A

Rated output voltage

12 V

Maximum output power

60 W

Part number


Updated: 2019-12-11

Document ID: EDOC1000013597

Views: 703986

Downloads: 16075

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