Official product image · 24×GE copper managed rack
ZJIES6028M-24GT-DC
Managed L2 · IEC61850-3 Rack
Managed Layer-2 19-inch Rack Gigabit Switch · IEC61850-3 · 24×GE Copper (RJ45)
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◆IEC61850-3
◆-40 ~ 75°C
◆19-inch 1U Rack
◆ZJRing Self-Heal <20ms
◆5-Year Warranty
Overview
The ZJIES6028M-24GT-DC is an IEC61850-3 compliant industrial managed Layer-2 19-inch rack-mount gigabit switch with 24 × 10/100/1000Base-T copper (RJ45) ports — a pure-copper, all-gigabit access switch with no fiber ports. 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. AC 220V 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 copper (RJ45) — pure-copper, no fiber (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 | None (copper-only model) |
| LED Indicators | Power, Link, 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 | 4 priority classes (internal priority scheduling), mapped by 802.1p/DSCP into 8 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, EN 55032 (CISPR 32) 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-24GT-DC | Industrial managed L2 rack Ethernet switch — 24 × 10/100/1000Base-T, AC 220V (AC/DC 100–240V) power. | |
| 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-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-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-24GT-DC.
Dimensions
unit: mm
Your Brand. Factory-Direct Supply.Neutral casing, ready for your logo · Protocol-level customization · Small batches welcome.
Custom & OEM →Who uses it, where it goes and how to plan the network
Written for the ZJIES6028M-24GT-DC from its own specifications: managed Layer-2 19-inch 1U rack switch, 24 × 10/100/1000Base-T copper and no fibre, ZJRing <20ms / ERPS <50ms, IEC61850-3, AC/DC 100–240V input.
Who it is for
- Utilities and substations — IEC61850-3 compliance, EN61000-4 Level 3 immunity and an AC/DC 100–240V input that suits station supplies make it a fit for substation automation LANs. Being all-copper, it fits the relay or control room where IEDs, RTUs and the station HMI sit within 100 m of the switch.
- Factories and PLC networks — Up to 64 VLANs keep PLC, HMI, camera and office traffic apart, and 802.1p/DSCP priority with 8 queues per port keeps control traffic ahead of video; storm suppression stops a looped or faulty device from flooding the line.
- CCTV and control-room access layers — 24 gigabit copper ports for NVRs, decoders, video walls and servers in one rack, with IGMP Snooping (256 groups) so multicast video only goes to the ports that asked for it.
- System integrators and OEM projects — Web, Telnet, CLI and SNMP v1/v2/v3 management, configuration import/export for cloning many units, and project-level customization and OEM supported on this page.
Where and how to install
- Rack position and depth — It is a 19-inch 1U unit (440 × 44 × 240 mm), so check that the cabinet has at least 240 mm of usable depth plus room for cables at the front. The IP40 metal housing is for indoor cabinets and control rooms, not open outdoor mounting; support long, heavy cabinets with a rail or shelf under the switch.
- Power and alarm wiring — The 4-pin power terminal takes AC/DC 100–240V, single or dual. For redundancy feed the two inputs from different sources (for example station DC and a UPS), each with its own breaker; the unit draws max 30 W. Wire the 2-pin alarm relay (220V, max 2A) to the RTU or alarm panel so a lost input is reported.
- Copper cabling — Every link is copper, so keep each run within 100 m of Cat5e or Cat6. In substations and next to drives or switchgear use shielded cable, and keep data cables away from power cables in the trays.
- Grounding and surge — Bond the chassis to the cabinet earth bar with a short conductor. EMS immunity is EN61000-4 Level 3, but copper cables that leave the building or cross a switchyard still need surge protectors at both ends; where possible use fibre for those links.
- First setup over the console — Before connecting it to the live network, configure it over the RJ45 console (RS-232, 9600bps, 8/N/1) or the web interface: management IP and VLAN, new login password, SNMP v3 instead of v1/v2, and the ring settings. Export the configuration file and keep it so a replacement unit can be loaded in minutes.
- Temperature and condensation — The standard version is rated -10~60°C and the wide-temperature version -40~75°C; order the wide-temperature version for unconditioned rooms and roadside or yard cabinets. Humidity is 5–95% non-condensing, so seal cable entries and use a cabinet heater or ventilation where nights are cold and humid.
Ports and ring planning
This is the copper-only member of the ZJIES6028M family: 24 gigabit RJ45 ports and no SFP slots. A ring between these switches uses two copper ports per switch, so every ring link is limited to 100 m. For camera access the bandwidth is ample: 24 cameras at an assumed 6 Mbps each use about 144 Mbps of a 1 Gbps port.
| ZJIES6028M-24GT-DC | |
|---|---|
| Copper ports | 24 × 10/100/1000Base-T RJ45 |
| Fibre ports | None (copper-only) |
| Ring protocols and recovery | ZJRing <20ms; ERPS (G.8032) <50ms; STP/RSTP/MSTP |
| Max switches per ring | Not listed |
| Link aggregation | Static LACP, 2 groups × up to 4 ports |
| VLAN / multicast | 64 VLANs (VID 1–4094); IGMP Snooping v1/v2, 256 groups |
| 24 cameras at 6 Mbps each | ≈144 Mbps ≈ 14% of 1 Gbps |
| PoE output | None |
| MAC table / buffer | 8K MAC / 4 Mbit, store-and-forward |
| Power input / consumption | AC/DC 100–240V, single or dual / max 30 W |
| Operating temperature | -10~60°C standard; -40~75°C wide-temp |
| Housing / mounting / size | IP40 metal / 19-inch 1U / 440 × 44 × 240 mm |
- Pick the ZJIES6028M-24GT-DC when every device and every neighbouring switch is within 100 m of copper, typically inside one building or control room.
- Pick the ZJIES6028M-24GT2GB-DC (2 SFP) for a fibre ring, or the ZJIES6028M-24GT4GB-DC (4 SFP) for a fibre ring plus fibre uplinks, when links run between buildings or across a yard.
- Pick a PoE version such as the ZJIES6028M-P-24PGT4GB-AC if the switch must also power the cameras.
All values are from this page's specification table. Camera bandwidth assumes 6 Mbps per 4 MP camera and is arithmetic, not a manufacturer figure; the maximum number of switches per ring is not listed, so ask us for large rings.
Managed Industrial Rack Switch FAQ — ZJIES6028M-24GT-DC
What management features does the ZJIES6028M-24GT-DC support?
Full Layer-2 management: SNMP v1/v2/v3, web, Telnet and serial CLI (RS-232 RJ45, 9600 bps), port and 802.1Q VLANs up to 64 groups, QoS with 4 priority classes and 8 queues per port, IGMP Snooping for up to 256 multicast groups, LACP with 2 groups of up to 4 ports, port mirroring, Syslog, RMON and SNTP.
How fast does the ring recover after a link failure?
Three ring options are built in: standard STP/RSTP/MSTP, ERPS per ITU-T G.8032 with recovery under 50 ms, and the proprietary ZJRing self-healing ring that restores traffic in under 20 ms. For substation or process networks, that keeps video and SCADA sessions alive through a fiber cut.
Does this model have fiber ports?
No — the -24GT-DC is the pure-copper member of the family: 24 × 10/100/1000Base-T RJ45 gigabit ports and no fiber. The wider ZJIES6028M series scales to 28 gigabit ports across many copper/fiber configurations, so ask for the configuration matching your fiber uplink plan when requesting a quote.
Why does IEC61850-3 compliance matter?
IEC61850-3 is the environmental and EMC benchmark for communication equipment inside electrical substations. Compliance means this switch tolerates the interference, surges and temperature swings found next to switchgear, so integrators can bid it directly into substation automation and other demanding industrial projects.
What are the power supply options?
AC 220V input with a wide AC/DC 100–240V range, selectable as single or dual supply for redundancy, wired on a 4-pin power terminal plus a 2-pin alarm terminal. The alarm contact is rated 220V at up to 2A for signalling faults to the cabinet supervision loop.
How does it protect the network against attacks and storms?
Security tools include ACLs, port MAC filtering and binding, 802.1X port authentication with RADIUS, and DDoS self-defense. Broadcast, multicast and unknown-unicast storm suppression plus ingress/egress rate limiting from 64 Kbps keep a faulty device from flooding the whole industrial LAN.
Can I build a ring with the ZJIES6028M-24GT-DC without fibre, and how far apart can the switches be?
Yes. Two of the 24 copper ports on each switch form the ring, and ZJRing (<20ms), ERPS (<50ms) or RSTP protect it, but each copper link is limited to 100 m of Cat5e/Cat6. Copper between buildings or across a substation yard is also exposed to earth potential differences and surge. For longer or outdoor links choose the ZJIES6028M-24GT2GB-DC or ZJIES6028M-24GT4GB-DC, whose SFP slots reach 2 km on multimode and 20/40/60/120 km on single-mode.
The name ends in -DC: can the ZJIES6028M-24GT-DC run from a 110 V or 220 V DC station battery, or from 24/48 V DC?
The page lists the input as AC 220V with a range of AC/DC 100–240V, single or dual. Nominal 110 V DC and 220 V DC station supplies are inside that range; 24 V and 48 V DC are not, so it cannot run from a 24/48 V DC panel supply. A 220 V battery on float or boost charge can rise above 240 V, so check your system's maximum voltage and tell us before ordering. The input has reverse-polarity and overload protection.
Can the ZJIES6028M-24GT-DC join an existing ring built with another brand's switches?
Use a standard protocol for that: the switch supports ERPS (ITU-T G.8032, self-healing <50ms) and STP/RSTP/MSTP, which are meant to work between vendors. ZJRing (<20ms) is Zhongxin's own ring and only runs between Zhongxin switches. With ERPS, set the same ring ID, control VLAN and RPL owner on every node and test a fibre pull before commissioning; send us the other brand and model and we will check with the factory.
Does the ZJIES6028M-24GT-DC support IEEE 1588 PTP time synchronisation for a substation?
PTP (IEEE 1588) is not listed for this model; only SNTP is listed, which sets the switch's own clock and log timestamps. If your protection or process-bus scheme needs PTP through the switch, confirm with us before ordering. For GOOSE and other critical traffic you can use the listed 802.1Q VLANs (up to 64) and 802.1p priority mapped into 8 queues per port.
How many IP cameras can I connect to the ZJIES6028M-24GT-DC, and does it power them?
Bandwidth is not the limit: all 24 RJ45 ports are gigabit, and at an assumed 6 Mbps per 4 MP camera, 24 cameras add up to about 144 Mbps, roughly 14% of a 1 Gbps link. It has no PoE output, so cameras need local power or PoE injectors; if the switch should power the cameras, look at the PoE versions ZJIES6028M-P-24PGT4GB-AC or ZJIES6028M-P-16PGT4GB-DC. The 8K MAC table is far more than one site needs.
What power connector does the ZJIES6028M-24GT-DC have, and do I need to confirm it before ordering?
Yes, please confirm the power connector with us before ordering. For Zhongxin Shutong products the power input type and connector can differ between versions and batches, so tell us your supply (AC or DC and the voltage), how you will wire it in the cabinet and your country's plug standard, and we confirm the exact connector and supply version of the ZJIES6028M-24GT-DC for your order.
Ordering questions — samples, shipping, payment, lead time and genuine stock — are answered once on our FAQ page.
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