Manufacturer product photo · industrial managed Gigabit PoE DIN-rail switch
ZJIES3000D-P-8PGT4GB
Industrial · Managed Gigabit PoE
Industrial Managed Gigabit PoE DIN-Rail Switch · 8×GE PoE af/at + 4×SFP · DC 48V
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◆8×PoE af/at · 30W/Port
◆4×SFP Fiber Slots
◆-40 ~ 75°C
◆IP40 Fanless
◆ERPS Ring <50ms
◆5-Year Warranty
Overview
The ZJIES3000D-P-8PGT4GB is an industrial managed Gigabit PoE Ethernet switch with 8 x 10/100/1000Base-T ports supporting IEEE802.3af/at PoE+ (up to 30W per port) and 4 x 1000Base-X SFP fiber slots, letting a single unit power and network cameras, IP phones, and wireless APs while uplinking toward multiple fiber directions. Full management is supported, including QoS, VLAN, IGMP Snooping/GMRP, Port Trunking, and SNMP v1/v2/v3. Multiple ring-redundancy protocols (RSTP/STP/MSTP/ERPS/ZJRing) improve network reliability and interoperability, and the wide-temperature, EMC-hardened design meets demanding industrial field conditions for building fully-gigabit PoE ring networks.
Is This the Right Fit?
Six real deployment scenarios matched to this model's actual datasheet specifications.
Warehouse CCTV Power & Networking8 × 10/100/1000Base-T ports each deliver IEEE802.3af/at PoE+ up to 30W, enough to power and network a full warehouse aisle of PoE cameras — including PTZ or heater-equipped models — off a single switch.
DIN-Rail Cabinet InstallationDIN-rail (or wall-mount) design with DC 48V (36–56V) dual redundant power input fits directly inside a compact electrical cabinet, keeping PoE camera power and switching in one enclosure with backup-input protection against a single power-feed failure.
Extreme-Temperature Outdoor CabinetThe wide-temperature build operates from -40 to +75°C with strong EMC immunity (EN61000-4-2/3/4/5/6/8 Level 3), suited to unheated outdoor cabinets facing seasonal extremes while still delivering full PoE output to field cameras.
Multi-Direction Long-Haul Fiber Aggregation4 × 1000Base-X SFP slots — the most fiber uplinks in this PoE switch series — let one unit run multimode dual-fiber links up to 2 km or single-mode dual-fiber links up to 10 km toward up to four separate directions simultaneously, not just one or two uplinks.
Multi-Building PoE Aggregation Hub8 PoE af/at downlinks (30W each) paired with 4 independent SFP fiber uplinks let one switch feed PoE cameras locally while simultaneously uplinking toward up to four separate core switches or buildings — more upstream fiber directions than the 2-SFP variant in this series.
Self-Healing Ring Network RedundancyRSTP/STP/MSTP, ERPS (ITU-T G.8032), and the private ZJRing protocol (self-healing <50ms) let this switch anchor a resilient PoE ring network for factory or campus production lines.
Not a good fit if:
- Only 8 PoE ports per unit — for camera counts beyond 8 per switch, plan for multiple units or a higher-port PoE model.
- Standard package does not include SFP optical transceiver modules — order separately to activate the 4 fiber ports.
- IP40 enclosure only — needs a cabinet or additional protection for direct outdoor rain/dust exposure.
Key Features
- 8 × 10/100/1000Base-T ports with IEEE802.3af/at PoE+, up to 30W per port
- 4 × 1000Base-X SFP fiber uplink slots
- DC 48V (36–56V) redundant dual power input
- Ring redundancy: RSTP / STP / MSTP / ERPS / ZJRing
- Management: QoS, VLAN, IGMP Snooping/GMRP, Port Trunking, SNMP v1/v2/v3
- RS-232 Console port (RJ45, 9600bps 8-N-1) for local CLI management
- DIN-rail or wall-mount installation · IP40 metal enclosure
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 |
| IEEE802.3x | 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 |
| IEEE802.3af/at | Power-over-Ethernet (PoE/PoE+) |
Switching
| MAC Address Table | 8K |
| Packet Buffer | 4 Mbit |
| Forwarding | Store-and-forward |
Interfaces
| RJ45 Ports | Up to 8 × 10/100/1000Base-T (PoE af/at) |
| PoE Pinout | V+, V+, V-, V- on Pin 1, 2, 3, 6 (Endspan, MDI Alternative A) |
| SFP Fiber | 4 × 1000Base-X SFP slots |
| LED Indicators | Power, Link, Fiber, PoE, Status |
| Console | RS-232, RJ45, 9600bps, 8-N-1 |
Power
| Input Current | Max 5.1A @ 48VDC (8 × PoE ports, up to 30W per port) |
| DC 48V Input | 4-pin terminal, dual redundant input; 36–56 VDC |
| Power Consumption | Max 15 W (switch electronics, excludes PoE output budget) |
| Power Protection | Reverse-polarity & overload |
| Alarm | 2-pin terminal |
Environment
| Standard Temp | -10 ~ +60°C |
| Wide Temp | -40 ~ +75°C |
| Storage Temp | -40 ~ +85°C |
| Humidity | 5–95% non-condensing |
Certification
| EMC | CE, FCC |
| 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 |
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 L2–L4 filtering; port MAC filtering; MAC binding; 802.1X; RADIUS; DDoS self-defense |
| VLAN | Port & 802.1Q VLAN; up to 4094 VLANs (VID 1–4094); management VLAN |
| Link Aggregation | Static LACP; 2 groups × up to 4 ports |
| Ring Redundancy | STP/RSTP/MSTP; ERPS (G.8032); ZJRing self-healing ring <50ms |
| QoS | 4 priority classes (absolute / relative scheduling), mapped by 802.1p/DSCP into 8 hardware 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 |
Physical
| Housing | IP40 metal enclosure |
| Mounting | DIN-rail (default), wall-mount optional |
| Dimensions | 70 (W) × 175 (H) × 150 (D) mm |
Reliability
| MTBF | 320,000 hours |
| Warranty | 5 years |
Models & Ordering
| Model | Product Description | Price |
|---|---|---|
| ZJIES3000D-P-8PGT4GB-DCH | Industrial managed DIN-rail Ethernet switch — 8 × 10/100/1000Base-T with PoE af/at (up to 30W/port), 4 × 1000Base-X SFP fiber slots, DC 48V (36–56V) power with redundant input. Multimode dual-fiber 2 km / single-mode dual-fiber 10 km, single- or dual-fiber optional. |
This page covers the ZJIES3000D-P-8PGT4GB series, offered as the DC 48V (36-56V) redundant-input model ZJIES3000D-P-8PGT4GB-DCH. Multimode dual-fiber 2 km / single-mode dual-fiber 10 km, single- or dual-fiber SFP optional. Standard package does not include SFP optical modules.
Dimensions
unit: mm
Your Brand. Factory-Direct Supply.Neutral casing, ready for your logo · Custom port/power options · Small batches welcome.
Custom & OEM →Who uses it, where it goes and how to install it
Written for the ZJIES3000D-P-8PGT4GB(-DCH) from the manufacturer's datasheet: managed Layer 2, 8 × Gigabit PoE 802.3af/at up to 30 W per port, 4 × 1000Base-X SFP slots, STP/RSTP/MSTP/ERPS and ZJRing (<50 ms), DC 48V (36–56 VDC) redundant input, -40 to +75°C.
Who it is for
- Fiber junction cabinets on CCTV and ITS projects — At a road junction or site corner, 2 SFP ports stay in the main ring and the other 2 run fiber to side streets or remote poles, while the 8 PoE+ ports power the local cameras.
- Campuses and multi-building sites — Four independent fiber ports can link up to four buildings or core switches from one PoE cabinet, with VLANs (up to 4094) keeping cameras, phones and APs separate on each link.
- Substations and 48V DC telecom sites — Two redundant 48V DC inputs (36–56 VDC) run from the station battery plant, the EMS tests are listed at Level 3 for ESD, surge and fast transients, and fiber keeps yard cameras isolated from the control building.
- Factories and mines with redundant uplinks — Two fiber ports can go to two different core switches with RSTP/MSTP, or be bundled with static link aggregation, so the cameras and APs of a production area keep running when one uplink fails.
Where and how to install
- DIN rail in a closed cabinet — The housing is 70 × 175 × 150 mm and IP40, so plan about 70 mm of DIN rail (wall mounting optional) inside a closed cabinet. Outdoors, use a sealed pole or wall cabinet with cable glands at the bottom.
- 48V DC supply for PoE+ — Feed both inputs of the 4-pin terminal from separate supplies or breakers, each able to carry the full load alone. The page lists 36–56 VDC input, but 802.3at devices expect about 50–57 V at the port, so for 30 W ports use a supply set near the top of the range (for example 52–54 V) and confirm with us if your site voltage is lower.
- SFP modules and fiber handling — SFP modules are not included. Order 1000Base-X modules to match the fiber: multimode dual-fiber up to 2 km or single-mode dual-fiber up to 10 km, or single-fiber modules used as a matched pair. Terminate the fiber in a splice tray or small patch box in the same cabinet, keep bends gentle and keep dust caps on until the patch cord goes in.
- Label each fiber direction — With 4 fiber ports it is easy to swap directions during maintenance. Label each SFP port, patch cord and splice tray with its destination, decide which 2 ports form the ring before configuring ERPS or ZJRing, and record the module type (multimode or single-mode, wavelength) for each port.
- Camera cable runs and surge — Keep each PoE run under 100 m of solid-copper Cat5e or Cat6 (not CCA cable, which drops more voltage). Cameras on poles or outside walls should have an Ethernet surge protector at the cabinet end, bonded to the same earth bar as the switch.
- Heat inside the cabinet — Order the wide-temperature version (-40 to +75°C) for outdoor cabinets; the standard version is -10 to +60°C. With all ports near 30 W the switch handles a lot of power in a small fanless box, so leave space above and below it and shade the cabinet from direct sun. Humidity is 5–95% non-condensing; add a heater or filtered vent where nights are cold.
PoE budget / how many cameras
With 4 SFP ports, the ring and up to 2 more fiber directions use no copper ports, so all 8 PoE ports stay free for devices. The datasheet gives 30 W per port and a maximum input of 5.1 A at 48 VDC (about 245 W), but no separate PoE budget figure; the table shows input current and supply size for three typical loads with all 8 ports used.
| 4 MP IR camera ≈ 6 W | PTZ-lite / AP ≈ 13 W | 30 W per port (max) | |
|---|---|---|---|
| Devices on the 8 PoE ports | 8 | 8 | 8 |
| Total PoE load | 48 W | 104 W | 240 W |
| Input current at 48 V (incl. 15 W switch) | ≈ 1.3 A | ≈ 2.5 A | 5.1 A (datasheet max) |
| Supply per input (× 1.25 margin) | ≥ 1.6 A (≈ 80 W) | ≥ 3.1 A (≈ 150 W) | ≥ 6.4 A (≈ 310 W) |
| Fiber ports | 4 × SFP: 2 ring + 2 spur | 4 × SFP: 2 ring + 2 spur | 4 × SFP: 2 ring + 2 spur |
| SFP reach (by module) | MM 2 km / SM 10 km | MM 2 km / SM 10 km | MM 2 km / SM 10 km |
| Cabinets per ring at 8 Mbps per camera | ≈ 10 (80 cameras) | ≈ 10 (80 cameras) | ≈ 10 (80 cameras) |
- Ordinary 4 MP fixed cameras use only about 48 W in total on 8 ports, so a 48 V supply of about 80 W per input is enough.
- If any port feeds a PTZ, heater housing or 802.3at access point, size each supply for the 5.1 A maximum plus margin (about 310 W).
- Pick the ZJIES3000D-P-8PGT2GB-DCH instead if the cabinet only needs the two ring fibers and no spur or second uplink.
30 W per port, 5.1 A at 48 VDC, 15 W switch consumption and 2 km / 10 km fiber reach are from the datasheet. 6 W, 13 W and 8 Mbps per camera are assumptions. Input current = (PoE load + 15 W) ÷ 48 V; supply = current × 1.25. Cabinets per ring: 8 cameras × 8 Mbps = 64 Mbps each; 10 × 64 = 640 Mbps stays under 70% of one 1000 Mbps link when a fiber is cut; cameras on spur fibers add to the cabinet they join.
Gigabit PoE Switch with 4 SFP FAQ — ZJIES3000D-P-8PGT4GB
What is the port layout of the ZJIES3000D-P-8PGT4GB?
Up to 8 x 10/100/1000Base-T ports with IEEE 802.3af/at PoE+ plus 4 x 1000Base-X SFP fiber slots. One unit powers and networks cameras, IP phones and wireless APs while uplinking toward multiple fiber directions — useful when cabinets sit at a fiber junction point.
How much power can each PoE port supply?
Each of the 8 ports supplies up to 30 W under IEEE 802.3af/at, injected on pins 1, 2, 3 and 6 (Endspan, MDI Alternative A). Maximum input current is 5.1 A at 48 VDC — around 245 W — so typical 4-12 W cameras across all 8 ports fit comfortably.
Does the 15 W consumption figure include PoE output?
No. The 15 W maximum covers the switch electronics only and excludes the PoE output budget. Total demand from your 48 V supply is governed by the 5.1 A maximum input current, which covers both the switching hardware and all connected PoE loads.
Which redundancy and management protocols are supported?
Ring redundancy covers RSTP, STP, MSTP, ERPS per ITU-T G.8032 and ZJRing, usable across the 4 SFP fiber slots. Management includes QoS, 802.1Q VLAN, IGMP Snooping/GMRP, LACP, 802.1X and LLDP through SNMP v1/v2/v3, web, Telnet or the RS-232 console.
How is it powered and installed on site?
Wire a 48 V DC source (36-56 VDC) to the dual redundant 4-pin terminal and mount the unit on a DIN rail. The wide-temperature version tolerates -40 to +75 C with 5-95% non-condensing humidity, EN61000-4 level 3 EMC immunity and a 2-pin alarm terminal for supervision.
Can I mix multimode and single-mode SFP modules in the 4 slots of the ZJIES3000D-P-8PGT4GB?
Yes. Each slot is an independent 1000Base-X port, so each link gets the module that suits its fiber: multimode dual-fiber up to 2 km, single-mode dual-fiber up to 10 km, or single-fiber modules as a matched pair. What must match is the two ends of the same link. Use 1 Gigabit modules only; 10G SFP+ will not work, and for a 100 Mbps fiber device at the far end confirm with us first, because the slots are specified as 1000Base-X. Modules are not included.
Can one ZJIES3000D-P-8PGT4GB be a ring node and also feed fiber spurs to remote cameras?
Yes. Configure 2 SFP ports as the ring ports (ERPS, ZJRing or RSTP) and use the other 2 as normal ports toward remote cabinets. The far end of each spur needs a fiber device, such as another switch with an SFP port or a media converter, which then powers its cameras locally. Spurs are not protected by the ring: if a spur fiber is cut, the cameras behind it go offline until it is repaired.
Can I connect the ZJIES3000D-P-8PGT4GB to two core switches so one can fail?
Yes, with RSTP or MSTP: run one fiber to each core switch and enable the same spanning-tree protocol on the cores; one uplink is blocked and takes over if the other link or core fails. Static link aggregation (2 groups of up to 4 ports) bundles ports toward a single switch, so it adds capacity and cable redundancy but not protection against a core switch failure. Do not connect two uplinks with spanning tree switched off, or a loop will form.
Will a ring of ZJIES3000D-P-8PGT4GB switches work with ERPS switches from other brands?
ERPS (ITU-T G.8032) is a standard protocol, so a mixed ring is possible if every node uses ERPS with the same ring ID, control VLAN and owner settings; RSTP and MSTP are also available. ZJRing, the private protocol with the datasheet's <50 ms self-healing time, works only between Zhongxin switches. The datasheet gives no recovery time for ERPS, so if your specification requires one, ask us before ordering and test by unplugging one fiber before handover.
How many cameras can a ring of ZJIES3000D-P-8PGT4GB cabinets carry, including the spur fibers?
Count every camera whose video enters the ring, local or on a spur, because all of it can end up on one 1000 Mbps link when a ring fiber is cut. At an assumed 8 Mbps per 4 MP camera and a 70% load ceiling, that is about 85 cameras per ring (700 ÷ 8 ≈ 87), for example 10 cabinets of 8 local cameras plus a few on spurs. For more, split the site into two rings or move high-bitrate cameras to their own ring.
What power connector does the ZJIES3000D-P-8PGT4GB 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 ZJIES3000D-P-8PGT4GB for your order.
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