Series representative image · actual unit: 24×GE + 4×SFP

ZJIES6028M-24GT4GB-DC

Name: Atlas ZJIES6028M-24GT4GB-DC
Brand: Zhongxin Shutong

Managed L2 · IEC61850-3 Rack

Managed Layer-2 19-inch Rack Gigabit Switch · IEC61850-3 · 24×GE + 4×SFP

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Overview

The ZJIES6028M-24GT4GB-DC is an IEC61850-3 compliant industrial managed Layer-2 19-inch rack-mount gigabit switch with 24 × 10/100/1000Base-T copper ports and 4 × 1000Base-X SFP fiber slots. It provides full management — QoS, VLAN, IGMP Snooping/GMRP, Port Trunking, SNMP v1/v2/v3 — and ring-redundancy protocols (STP/RSTP/MSTP/ERPS/ZJRing) with self-healing under 20 ms. Redundant power input, wide-temperature design and strong EMC immunity make it suitable for substation automation and demanding industrial sites. The ZJIES6028M series scales to 28 gigabit ports across many copper/fiber configurations.

Specifications

IEEE Standards

IEEE802.3	10BaseT Ethernet
IEEE802.3u	100Base-T(X) & 100Base-FX Fast Ethernet
IEEE802.3ab	1000Base-T(X) Ethernet
IEEE802.3z	1000Base-X Ethernet
IEEE802.3ae	10GBase-X
IEEE802.3x	Flow Control
IEEE802.3d	Spanning Tree Protocol
IEEE802.1w	Rapid Spanning Tree Protocol
IEEE802.1s	Multiple Spanning Tree Protocol
ITU-T G.8032	Ethernet Ring Protection Switching (ERPS)
IEEE802.1p	Class of Service
IEEE802.1Q	VLAN Tag
IEEE802.3ad	LACP (Link Aggregation)
IEEE802.1x	User Authentication
IEEE802.1ab	LLDP

Switching

MAC Address Table	8K
Packet Buffer	4 Mbit
Forwarding	Store-and-forward

Interfaces

RJ45 Ports	24 × 10/100/1000Base-T
Fiber Ports	4 × 1000Base-X SFP slots
Optical Distance	Multimode 2 km; single-mode 20 / 40 / 60 / 120 km optional
LED Indicators	Power, Link, Fiber, Status
Console	RS-232, RJ45, 9600bps, 8/N/1

Software Features

MIB	RFC1215, RFC1213 MIB-II, RFC1157 SNMP-MIB, RFC1493 Bridge-MIB, RFC2674 VLAN-MIB, RFC1643, RFC1757, RSTP-MIB, Private MIB, LLDP-MIB
Management	SNMP v1/v2/v3; Web, Telnet, serial CLI; DHCP client; login password
Security	ACL; port MAC filtering; MAC binding; 802.1X; RADIUS; DDoS self-defense
VLAN	Port & 802.1Q VLAN; up to 64 VLANs (VID 1–4094); management VLAN
Link Aggregation	Static LACP; 2 groups × up to 4 ports
Ring Redundancy	STP/RSTP/MSTP; ERPS (G.8032) <50ms; ZJRing self-healing ring <20ms
QoS	Absolute & relative priority; 4 queues; 802.1p/DSCP; 8 queues/port
Port Mirroring	One-way & two-way port mirroring
IGMP Multicast	IGMP Snooping v1/v2; up to 256 groups
Rate Limiting	Ingress/egress limiting, min 64 Kbps
Storm Suppression	Broadcast, multicast & unknown-unicast
Maintenance	Syslog, RMON, Ping, LLDP
SNTP	SNTP supported
Firmware	Web & serial TFTP upgrade
Config File	Import / export supported

Power

Terminal	4-pin power + 2-pin alarm terminal
Input	Single/dual optional; AC/DC 100–240V
Alarm	220V, max 2A
Power Consumption	Max 30 W
Power Protection	Reverse-polarity & overload

Physical

Housing	IP40 metal enclosure
Mounting	19-inch standard 1U rack
Dimensions	440 (W) × 44 (H) × 240 (D) mm

Certification

EMC	CE, FCC
Substation	IEC61850-3
EMI	FCC Part 15, CISPR (EN55022) Class A
EMS	EN61000-4-2/3/4/5/6/8 Level 3
Shock	IEC60068-2-27
Free Fall	IEC60068-2-32
Vibration	IEC60068-2-6
Green	RoHS, WEEE

Environment

Standard Temp	-10 ~ +60°C
Wide Temp	-40 ~ +75°C
Storage Temp	-40 ~ +85°C
Humidity	5–95% non-condensing

Reliability

MTBF	320,000 hours
Warranty	5 years

Models & Ordering

Model	Product Description	Price
ZJIES6028M-24GT4GB-DC	Industrial managed L2 rack Ethernet switch — 24 × 10/100/1000Base-T + 4 × 1000Base-X SFP slots, AC 220V (AC/DC 100–240V) power. Multimode dual-fiber 2 km / single-mode dual-fiber 10 km, single- or dual-fiber optional.	✆ WhatsApp
ZJIES6028M-24GT2GB-DC	Industrial managed L2 rack Ethernet switch — 24 × 10/100/1000Base-T + 2 × 1000Base-X SFP slots, AC 220V (AC/DC 100–240V) power. Multimode dual-fiber 2 km / single-mode dual-fiber 10 km, single- or dual-fiber optional.	✆ WhatsApp
ZJIES6028M-24GT-DC	Industrial managed L2 rack Ethernet switch — 24 × 10/100/1000Base-T, AC 220V (AC/DC 100–240V) power.	✆ WhatsApp
ZJIES6028M-16GT-AC	Industrial managed L2 rack Ethernet switch — 16 × 10/100/1000Base-T, AC 220V (AC/DC 100–240V) power.	✆ WhatsApp
ZJIES6028M-16GT2F-AC	Industrial managed L2 rack Ethernet switch — 16 × 10/100/1000Base-T + 2 × 1000Base-X fixed fiber, AC 220V (AC/DC 100–240V) power. Multimode dual-fiber 2 km / single-mode dual-fiber 10 km, single- or dual-fiber optional.	✆ WhatsApp
ZJIES6028M-16GT8GB-AC	Industrial managed L2 rack Ethernet switch — 16 × 10/100/1000Base-T + 8 × 1000Base-X SFP slots, AC 220V (AC/DC 100–240V) power. Multimode dual-fiber 2 km / single-mode dual-fiber 10 km, single- or dual-fiber optional.	✆ WhatsApp
ZJIES6028M-8GT8GB-AC	Industrial managed L2 rack Ethernet switch — 8 × 10/100/1000Base-T + 8 × 1000Base-X SFP slots, AC 220V (AC/DC 100–240V) power. Multimode dual-fiber 2 km / single-mode dual-fiber 10 km, single- or dual-fiber optional.	✆ WhatsApp
ZJIES6028M-8GT16GB-AC	Industrial managed L2 rack Ethernet switch — 8 × 10/100/1000Base-T + 16 × 1000Base-X SFP slots, AC 220V (AC/DC 100–240V) power. Multimode dual-fiber 2 km / single-mode dual-fiber 10 km, single- or dual-fiber optional.	✆ WhatsApp
ZJIES6028M-8GT20GB-AC	Industrial managed L2 rack Ethernet switch — 8 × 10/100/1000Base-T + 20 × 1000Base-X SFP slots, AC 220V (AC/DC 100–240V) power. Multimode dual-fiber 2 km / single-mode dual-fiber 10 km, single- or dual-fiber optional.	✆ WhatsApp
ZJIES6028M-8GT16F4GB-AC	Industrial managed L2 rack Ethernet switch — 8 × 10/100/1000Base-T + 16 × 1000Base-X fixed + 4 × 1000Base-X SFP slots, AC 220V (AC/DC 100–240V) power. Multimode dual-fiber 2 km / single-mode dual-fiber 10 km, single- or dual-fiber optional.	✆ WhatsApp

SFP slots do not include optical modules ('-F' variants ship with fixed fiber). Optical reach: multimode 2 km; single-mode 20/40/60/120 km optional. The requested model is ZJIES6028M-24GT4GB-DC.

Managed 28-Port Industrial Switch FAQ — ZJIES6028M-24GT4GB-DC

What can I do with the 4 SFP fiber slots?

The -24GT4GB-DC pairs 24 × 10/100/1000Base-T copper ports with 4 × 1000Base-X SFP slots. Two slots can close a protected fiber ring while the other two serve as spare uplinks — for example one link to a second aggregation site and one to a local NVR room — without adding a second switch.

What fiber distances do the SFP slots support?

Each 1000Base-X SFP slot accepts multimode optics for 2 km or single-mode optics for 20, 40, 60 or 120 km. Mixing is allowed per slot, so short intra-plant hops and a long run to a remote station can terminate on the same switch.

Which ring redundancy protocols are supported?

STP, RSTP and MSTP for standard spanning-tree interoperability, ERPS per ITU-T G.8032 with recovery under 50 ms, and the proprietary ZJRing self-healing ring that restores service in under 20 ms. LACP link aggregation (2 groups of up to 4 ports) adds bandwidth and per-trunk redundancy.

What security features protect field networks?

ACLs, port MAC filtering and MAC binding stop unauthorized devices; 802.1X with RADIUS authenticates what plugs in; DDoS self-defense protects the CPU. Storm suppression for broadcast, multicast and unknown unicast, plus rate limiting from 64 Kbps, contain misbehaving nodes before they take down the ring.

How is configuration backed up and restored?

Configuration files can be exported and imported, so a commissioned setup is cloned to spares or restored after replacement in minutes. Firmware upgrades run over the web interface or serial TFTP, and the RS-232 console (RJ45, 9600 bps, 8/N/1) remains available for out-of-band recovery.

Is it suitable for substation and heavy industrial use?

Yes — it is IEC61850-3 compliant with wide-temperature design and strong EMC immunity, built for substation automation and similarly harsh sites. Redundant power input on AC/DC 100–240V (single or dual optional) and the ZJIES6028M platform, which scales to 28 gigabit ports, cover growing installations.