Series representative image · actual unit: 24×GE + 4×SFP
ZJIES6028M-24GT4GB-DC
Managed L2 · IEC61850-3 Rack
Managed Layer-2 19-inch Rack Gigabit Switch · IEC61850-3 · 24×GE + 4×SFP
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◆IEC61850-3
◆-40 ~ 75°C
◆19-inch 1U Rack
◆ZJRing Self-Heal <20ms
◆5-Year Warranty
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.
Key Features
- IEC61850-3 compliant — substation-grade reliability
- 24 × 10/100/1000Base-T + 4 × 1000Base-X SFP (series scales to 28 GbE)
- Redundancy: STP / RSTP / MSTP / ERPS (self-heal <50ms) / ZJRing (self-heal <20ms)
- Management: QoS, VLAN, IGMP Snooping / GMRP, SNMP v1/v2/v3
- AC 220V (AC/DC 100–240V), single/dual redundant power
- Standard 19-inch 1U rack mounting
- IP40 metal enclosure · wide temperature -40 ~ +75°C
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 | 7 priority classes (internal priority scheduling), mapped by 802.1p/DSCP into 63 queues per 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. | |
| 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. | |
| ZJIES6028M-24GT-DC | Industrial managed L2 rack Ethernet switch — 24 × 10/100/1000Base-T, AC 220V (AC/DC 100–240V) power. | |
| ZJIES6028M-16GT-AC | Industrial managed L2 rack Ethernet switch — 16 × 10/100/1000Base-T, AC 220V (AC/DC 100–240V) power. | |
| 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. | |
| 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. | |
| 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. | |
| 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. | |
| 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. | |
| 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. |
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.
Dimensions
unit: mm
Your Brand. Our Factory.Neutral casing, ready for your logo · Protocol-level customization · Small batches welcome.
Custom & OEM →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.
Our own line — Zhongxin Shutong industrial switches1,500 m² clean rooms100% port-by-port tested-40…+75 °C rated, cycled to +85 °CEN 61000-4 Level 3 EMC immunitySerial-number traceability on every unitISO 9001 · 14001 · 27001 · CMMI L3See the factory →See all certifications →
Every order, any brand: there is no return policy — defective units are covered by free spare units agreed per order and written into the quotation. Warranty up to 5 years on the Zhongxin Shutong industrial line, manufacturer warranty on other brands. Terms, warranty & RMA
