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Overview (S3700-28TP-SI-AC)
The S3700 series enterprise switches are next-generation energy-saving Layer 3 switches. The S3700 utilizes cutting-edge hardware and Huawei Versatile Routing Platform (VRP) software. Flexible VLAN deployment, PoE capabilities, stacking, VRRP, and RRPP.

1 S3700-28TP-SI-AC front views

1. Ground screw

2. AC jack

3. DC terminal

4. Switch

5. Twenty-four 10/100BASE-TX Ethernet electrical interfaces

6. Twenty-four 100BASE-X Ethernet optical interfaces

7. Forty-eight 100BASE-X Ethernet optical interfaces

8. Forty-eight 10/100BASE-TX Ethernet electrical interfaces

9. Two 1000BASE-X Ethernet optical interfaces

10. Two 1000M combo interfaces (10/100/1000BASE-T+100/1000BASE-X)

11. Two 100/1000BASE-X Ethernet optical interfaces

12. One console interface

13. Two monitoring ports


By default, a combo port works in auto mode, in which the port type is determined as follows:

  • If the optical port has no optical module installed and the electrical port has no network cable connected, the port type depends on which port is connected first. If the electrical port is connected by a network cable first, the electrical port is used for data switching. If the optical port has an optical module installed first, the optical port is used for data switching.
  • If the electrical port has a network cable connected and is in Up state, the electrical port is still used for data switching when the optical port has an optical module installed.
  • If the optical port, no matter in Up or Down state, has an optical module installed, the optical port is still used for data switching when the electrical port has a network cable connected.
  • If the optical port has an optical module installed and the electrical port has a network cable connected, the optical port is used for data switching after the switch restarts.

2 S3700-28TP-SI-AC rear views

1. AC jack

2. DC terminal

3. Switch

4. Ground screw

5. ESD jack

6. Fan module

7. Power supply unit slot

Item Parameter
Processor S3700-28TP: 300 MHz
S3700-52P: 200 MHz
Stacking bandwidth Support 10 Gbit/s bidirectional stacking bandwidth
DDR memory 128 MB
Flash Memory 16 MB
Dimensions (width x depth x height)
S3700-28TP-SI-AC 442.0 mm x 220.0 mm x 43.6 mm
Maximum power (full configuration)
S3700-28TP-SI-AC 20 W
Weight Full configuration ≤ 6.5 kg
Empty chassis ≤ 5 kg
Mean time between failures (MTBF)
S3700-28TP-SI-AC 31.4 years
Mean time to repair (MTTR) 2 hours
Availability > 0.99999
Surge protection Service port protection Non-PoE switch: ±6 kV in common mode
PoE switch: ±1 kV in common mode
Power supply protection AC:
PoE switch: ±2 kV in differential mode; ±4 kV in common mode
Non-PoE switch: ±6 kV in differential mode; ±6 kV in common mode
DC: ±1 kV in differential mode; ±2 kV in common mode
DC input voltage Rated voltage -48V DC to -60V DC
Maximum voltage -36V DC to -72V DC
AC input voltage Rated voltage 100V AC to 240V AC
Maximum voltage 90V AC to 264V AC
Temperature operating temperature 0°C to 50°C
Storage temperature -40°C to +70°C
Relative humidity 5%RH to 95%RH, non-condensing
Altitude AC: 0 m to 5000 m
DC: 0 m to 2000 m

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1. Pls arrange to pick up from our warehouse directly.
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Flexible shipping methods for your choice:

  Delivery Options Estimated Delivery Time
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By Air 4-10 business days
By Sea 10-20 business days

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Routerbiz will consider to shipping to an alternate address.

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1. 100% Quality Assurance:

Guarrantee all items are ORIGINAL and GENUINE only.
All new device past manufacture quality test;
Used /Refurbished items have to past test with good condition before shipment.

2. Warranty Terms

New items with 1 year manufacture warranty since shipping date.
Used/Refurbished items with 90 days warranty since shipping date.

3. After-sale Service

Build after-sale service department, consist of engineer & service representative.
Provide professional & efficient service.

4. Free CCIE/Experts Technical Support

Technical assistance on-line or by email Software download & network health check

Routerbiz will work together with you to solve problem till customers satisfied.

This warranty covers manufacturing defects in materials and workmanship encountered in normal, reasonable use of the product during the warranty period. This warranty does not apply:
> to abnormal wear and tear
> if the product has been mistreated or mishandled
> if the product has been improperly installed or configured
> if the product has been subject to an accident
> if the product has been subject to lightning, power surges or incorrect electrical voltage
> if the product has been modified."
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