WitNet IAS3028 (ZK Series) Industrial Ethernet Switch

Product Introduction

The WitNet IAS3028 (ZK series) industrial Ethernet switch is a next‑generation, fully in‑house‑developed industrial‑grade switch from Beijing Bowei Yaxun Technology Co., Ltd. Designed with 100% domestically sourced components, it meets requirements for independent and controllable technology. Featuring high performance, high port density, and robust security, this rack‑mountable, managed Gigabit Ethernet switch supports a wide range of management and security functions.

The WitNet IAS3028 (ZK series) switch features a fanless design and low‑power technology, ensuring stable operation in ambient temperatures ranging from –40°C to +70°C. It incorporates a four‑level EMC electromagnetic compatibility protection scheme, enabling it to withstand demanding industrial environments. The device supports wide‑range power input and dual‑power redundancy. This product is widely applicable across industrial sectors, including smart grids, rail transit, intelligent transportation, public safety, new energy, and smart manufacturing.

Key Features

✅ Designed specifically for industrial environments, featuring 100% domestically produced hardware and compliant with the IEC 61850 standard.

✅Complies with industry standards for Ethernet switches in smart substations and State Grid corporate standards.

✅ Supports 4 Gigabit optical ports and 24 Gigabit/100-Mbps electrical ports, with flexible interface configuration options.

✅ Supports State Grid Dispatch Document No. 1084 (2017) and can be connected to a network security monitoring device.

✅ Supports importing CSD configuration files for offline automatic configuration.

✅ Supports IEC 61850 models and file services

✅ Supports multiple management methods, including serial command-line, Telnet, NMS, WEB, and SNMP V1/V2/V3.

✅ Supports redundant power supplies, with flexible configuration options for power input ratings.

✅ Supports a wide range of Layer 2 and Layer 3 features, as well as secure access capabilities.

✅ Certified by the China Academy of Electrical Sciences and awarded the relevant certification.

✅ Rack-mountable, operating temperature: -40°C °C ~+70℃

✅ Fanless cooling technology, IP40 protection rating, Industrial Grade 4 EMC standards

Name

Specifications and Parameters

Port

Ethernet ports: Supports up to four Gigabit optical ports, with 24 Gigabit/100-Mbps electrical and optical interfaces available for flexible configuration.

CONSOLE port: RS232, RJ45

Alarm port: 3-pin terminal block with 5.08 mm pitch

Technology

IEEE802.3, IEEE802.3U, IEEE802.3ab, IEEE802.3x,

IEEE 802.1d, IEEE 802.1w, IEEE 802.1p, IEEE 802.1q, store-and-forward processing mode

Basic Functions

Exchange function

Supports VLAN

Supports GVRP

Redundancy technology

Supports STP/RSTP/MSTP

Supports MRP

Network Management and Monitoring

Supports console, Telnet, web, and SSH management methods.

Supports SNMPv1/v2/v3

Supports LLDP

Supports NTP

Supports port mirroring

Supports Syslog

Multicast protocol

Supports IGMP Snooping

Supports static multicast

Supports GMRP

Service quality

Supports QoS, 802.1p (CoS), DSCP

Supports SP and WRR queue scheduling.

Supports ACL

Bandwidth Management

Supports port aggregation

Supports port rate limiting.

Supports port-based flow control

Supports port storm suppression.

Cybersecurity

Supports port-MAC address binding.

Supports access whitelist

Supports IP access control

Supports SSH

Supports HTTPS/SSL

Supports user tiering

Supports port protection

Supports IP/MAC binding

Device Management

Supports FTP/TFTP upgrades

Supports logging

Supports configuration file download and upload.

Featured Features

IEC 61850-3 Protocol

Clock Management

Supports SNTP Client & Server

Supports NTP Client & Server

Supports time zone and daylight saving time configuration.

Exchange Attributes

Priority Queue: 8

Number of VLANs: 4K

VLAN ID: 1–4094

MAC Address Table: 32K

Multicast group count: 512

Packet buffer: 16 Mbit

Packet forwarding rate: 47.6 Mpps

Switching delay: <5 μs

Cable

Twisted pair: 0–100 m (using standard CAT5 or CAT5e network cables)

Multimode fiber: 1310 nm, 2 km (100 Mbps); 850 nm, 550 m (1 Gbps)

Single-mode fiber: 1310/1550 nm, 20/40/80/120 km

Power supply

Input voltage: 110V–220VAC/DC (85–265VAC / 88–370VDC), with optional 24–48VDC (18–75VDC) versions.

Connection terminals: 5‑pin, 5.08 mm pitch, plug‑in type terminals

Power: <30W (at full load)

Overload protection: Supported

Reverse connection protection: Supported

Redundancy protection: Supported

Mechanical structure

Chassis: Metal chassis with surface heat dissipation technology, fanless.

Protection rating: IP40

Installation method: Standard 19-inch 1U rack-mountable

Cable exit type: front and rear exits

Chassis dimensions (W×H×D): 446 mm × 44 mm × 315 mm (including the mounting bracket thickness)

Weight: 5 kg (including packaging)

Environment

Operating temperature: -40°C to +70°C

Storage temperature: -40°C to +85°C

Relative humidity: 0–95% non-condensing

Warranty

MTBF 35 years

5-year warranty

Meets the standard

IEC 61000-4-2 (ESD): ±8 kV contact discharge, ±15 kV air discharge
IEC 61000-4-3 (RS): 10 V/m (80–1000 MHz)
IEC 61000-4-4 (EFT): Power lines: ±4 kV; Data lines: ±2 kV
IEC 61000-4-5 (Surge) power lines: ±4 kV/cm, ±2 kV/dm; data lines: ±2 kV.
IEC 61000-4-6 (RF conducted): 3 V (10 kHz–150 kHz), 10 V (150 kHz–80 MHz)
IEC 61000-4-8 (Power Frequency Magnetic Field): 100 A/m (continuous), 1000 A/m (1 s to 3 s)
IEC 61000-12/18 (oscillatory wave): 2.5 kV/cm, 1 kV/dm
IEC 61000-4-10 (Damped Oscillatory Wave): 30 A/m
IEC 61000-4-16 (common-mode conducted): 30 V (continuous), 300 V (1 s)
FCC CFR47 PART 15/EN55022:Class A&B

IEC 68-2-6 (Vibration) IEC 68-2-27 (Shock) IEC 68-2-32 (Free Fall)

IEC 61000-6-2 (general industrial standard), IEC 61850-3 (substation), IEEE 1613 (power substation)

EN 50121-4 (Railway Applications)

Serial number

Product model

Optical Port Configuration

Electrical port configuration

Power supply method

Gigabit (SFP)

100 megabits

Single-mode/

Multi-mode

Gigabit/10 Gigabit adaptive (RJ45)

(SFP)

1

WitNet IAS3028-4GS-24GT-HVD-ZK

4

0

Single-mode

24

AC/DC 110~220V, dual-power redundancy

2

WitNet IAS3028-4GM-24GT-HVD-ZK

4

0

Multi-mode

24

3

WitNet IAS3028-12GS-16GT-HVD-ZK

12

0

Single-mode

16

4

WitNet IAS3028-12GM-16GT-HVD-ZK

12

0

Multi-mode

16

5

WitNet IAS3028-4GS-8SLC-16GT-HVD-ZK

4

8

Single-mode

16

6

WitNet IAS3028-4GM-8MLC-16GT-HVD-ZK

4

8

Multi-mode

16

7

WitNet IAS3028-20GS-8GT-HVD-ZK

20

0

Single-mode

8

8

WitNet IAS3028-20GM-8GT-HVD-ZK

20

0

Multi-mode

8

9

WitNet IAS3028-4GS-16SLC-16GT-HVD-ZK

4

16

Single-mode

8

10

WitNet IAS3028-4GM-16MLC-16GT-HVD-ZK

4

16

Multi-mode

8

11

WitNet IAS3028-28GS-HVD-ZK

28

0

Single-mode

0

12

WitNet IAS3028-28GM-HVD-ZK

28

0

Multi-mode

0

13

WitNet IAS3028-4GS-24SLC-HVD-ZK

4

24

Single-mode

0

14

WitNet IAS3028-4GM-24MLC-HVD-ZK

4

24

Multi-mode

0

15

WitNet IAS3028-4GS-24GT-LVD-ZK

4

0

Single-mode

24

DC 24–48 V, dual-power redundancy

16

WitNet IAS3028-4GM-24GT-LVD-ZK

4

0

Multi-mode

24

17

WitNet IAS3028-12GS-16GT-LVD-ZK

12

0

Single-mode

16

18

WitNet IAS3028-12GM-16GT-LVD-ZK

12

0

Multi-mode

16

19

WitNet IAS3028-4GS-8SLC-16GT-LVD-ZK

4

8

Single-mode

16

20

WitNet IAS3028-4GM-8MLC-16GT-LVD-ZK

4

8

Multi-mode

16

21

WitNet IAS3028-20GS-8GT-LVD-ZK

20

0

Single-mode

8

22

WitNet IAS3028-20GM-8GT-LVD-ZK

20

0

Multi-mode

8

23

WitNet IAS3028-4GS-16SLC-16GT-LVD-ZK

4

16

Single-mode

8

24

WitNet IAS3028-4GM-16MLC-16GT-LVD-ZK

4

16

Multi-mode

8

25

WitNet IAS3028-28GS-LVD-ZK

28

0

Single-mode

0

26

WitNet IAS3028-28GM-LVD-ZK

28

0

Multi-mode

0

27

WitNet IAS3028-4GS-24SLC-LVD-ZK

4

24

Single-mode

0

28

WitNet IAS3028-4GM-24MLC-LVD-ZK

4

24

Multi-mode

0