ISM7312D
工业以太网交换机
TThis managed Layer 3 industrial PoE Ethernet switch provides 8 PoE+ 10/100/1000Base-T ports and 4 1000Base-X SFP slots for scalable and reliable industrial network deployment.
PHOTO
Managed Layer 3 Industrial Ethernet Switching
Integrated PoE Power Delivery
Supports IEEE 802.3af/at compliant PoE with centralized power delivery, supplying up to 30W per port to connected devices.
Intelligent PoE Power Management
Supports automatic powered device detection and PoE power management to ensure stable and efficient power delivery.
Layer 3 Network Services
Provides Layer 3 network services including dynamic routing and VRRP to support scalable and resilient industrial network architectures.
Advanced Traffic Control
Supports VLAN, QoS, IGMP snooping, and port mirroring to enable fine-grained segmentation and traffic optimization in industrial networks.
High Availability Redundancy
Supports standard redundancy mechanisms including STP, RSTP, and MSTP to improve network resilience and backbone availability.
Redundant DC Power Inputs
Supports isolated redundant dual DC power inputs to enhance power reliability in industrial installations.
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Key Technical Specifications
Dimensions / Weight 52 × 140 × 110 mm / 0.7 kgEMC / Certifications FCC Part 15 Class A; EN55022 / EN55035 Class A; IEC 61000-4 seriesEnvironment -40 to +75 °C operating; IP30; fanless管理 Web, CLI, SNMPv1/v2c/v3, RMONPoE IEEE 802.3af/at, up to 30 W per port (8 ports)Ports 8 × 10/100/1000BaseT PoE + 4 × 1000BaseX SFP + 1 × Management Serial CLIPower 48–54V DC redundant dual inputsProtocols STP/RSTP/MSTP, IGMP Snooping, VLAN, GVRP, QoSSwitching Performance 68 Gbps backplane bandwidth; 16K MAC table; 4 Mbit bufferType Layer 2+ Managed Industrial Ethernet Switch
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IEEE Standards
IEEE 802 NetworksIEEE 802.1d Spanning Tree AlgorithmIEEE 802.1p Priority QueuingIEEE 802.1q VLAN taggingIEEE 802.1s Multiple Spanning TreeIEEE 802.1w Rapid Spanning TreeIEEE 802.1x AuthenticationIEEE 802.3 EthernetIEEE 802.3ac VLAN TaggingIEEE 802.3ad Link AggregationIEEE 802.3u Fast EthernetIEEE 802.3x Flow ControlIEEE 802.3z Gigabit Ethernet
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RFC Standards
RFC 1027 Using ARP to Implement Transparent Subnet GatewaysRFC 1058 RIPRFC 1059, 1119 NTPv1/2RFC 1112 IGMPRFC 1191 Path MTU DiscoveryRFC 1256 ICMP Router Discovery ProtocolRFC 1267 A Border Gateway Protocol 3 (BGP-3)RFC 1388 RIP Version 2 Carrying Additional InformationRFC 1403 BGP OSPF InteractionRFC 1519 CIDR (Classless Inter-domain Routing)RFC 1587 OSPF NSSARFC 1812 Requirements for IP Version 4 RoutersRFC 1994 PPP Challenge Handshake Authentication Protocol (CHAP)RFC 2068 HTTPRFC 213 DHCP ServerRFC 2138 RADIUSRFC 2139 RADIUS AccountingRFC 2236 IGMPv2RFC 2328 OSPFv2RFC 2338 VRRPRFC 2370 The OSPF Opaque LSA OptionRFC 2474 DiffServ PrecedenceRFC 2475 DiffServ Core and Edge Router FunctionsRFC 2597 DiffServ Assured ForwardingRFC 2598 DiffServ Expedited ForwardingRFC 2644 Directed BroadcastsRFC 2865 Remote Authentication Dial In User Service (RADIUS)RFC 3046 DHCP Relay Agent Information OptionRFC 3222 Forwarding Information Base (FIB)RFC 768 UDPRFC 791 IPRFC 792 ICMPRFC 793 TCPRFC 826 ARPRFC 854 Telnet Client & ServerRFC 862 Echo ProtocolRFC 863 Discard ProtocolRFC 904 Exterior Gateway Protocol Formal Specification
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Other Protocols
GMRP GARPGVRP GARPIGMP SnoopingSNMPv3 SupportedSSH2 Secure Shell 2
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Physical Performance
Cooling Method Fanless coolingDimensions (W × D × H) 52 mm × 140 mm × 110 mmEnclosure Fully enclosed seamless metal enclosureHumidity 5 \~ 95% (non-condensing)Ingress Protection IP30Mounting Method DIN-rail mountingOperating Temperature -40 °C \~ +75 °CStorage Temperature -40 °C \~ +85 °CWeight 0.7 kg
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Hardware Performance
Backplane Bandwidth 68 GbpsExchange Rate 148,800 pps/100M ports; 1,488,000 pps/1000M portsMAC Table Size 16KPacket Buffer Size 4 MbitsTransmission Mode Store-and-Forward
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Power Parameters
Input Voltage 48\~54V DC, redundant dual inputOverload Current Protection SupportedReverse Polarity Protection Supported
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PoE
Maximum Power 15.4 W (IEEE 802.3af); 30 W (IEEE 802.3at)PoE 10/100/1000BaseT Ports 8 ports
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Electromagnetic Characteristics
EMI FCC 47 CFR Part 15 Class A; EN55022 Class A; EN55035 Class AEMS IEC(EN)61000-4-2, Class 4 IEC(EN)61000-4-3, Class 3 IEC(EN)61000-4-4, Class 4 IEC(EN)61000-4-5, Class 4 IEC(EN)61000-4-6, Class 3 IEC(EN)61000-4-8, Class 5
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Mechanical Characteristics
Freefall IEC60068-2-31Shock IEC60068-2-27Vibration IEC60068-2-6
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Quality Assurance
MTBF 35 yearsWarranty Period 5 years
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Software Specifications
Diagnostic Mode Indicator light, Journal File, RMON, Port Mirroring, TRAPManagement Mode Browser, Serial Port, STD-17 MIB-II, STD-58 SMIv2, STD-59 RMON, STD-62 SNMPv3, SNMPv2c, SNMPv1, RFC2925 Ping MIBOthers IGMP Snooping, VLAN segmentation, QoS (IEEE 802.1P/1Q, ToS/DiffServ), GVRP, multicast filteringRedundancy STP, MSTP, RSTP, Port TrunkingTime Synchronization SNTP
Standard package*
- ISM7312D PoE Industrial Switch *1
* Standard package contents vary by standard order codes.
Contact us directly to learn more about our packaging options.
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Learn More →Frequently Asked Questions
What does the ISM7312D offer?
The ISM7312D (model ISM7312D-P-4GSFP-8GT-48) is the PoE variant of the ISM7012D — same 12-port managed Layer 2+ switch chassis, software, and reliability profile, with PoE power delivery added on the copper ports. Highlights:
| Ports | 4× 1000BaseX SFP + 8× 10/100/1000BaseT PoE copper, 1× management serial CLI |
| PoE | IEEE 802.3af / 802.3at, up to 15.4 W (af) / 30 W (at) per port on all 8 copper ports |
| Switching capacity | 68 Gbps backplane; store-and-forward; 16K MAC; 4 Mbit packet buffer |
| Forwarding rate | 148,800 pps @ 100 M / 1,488,000 pps @ 1000 M |
| Power | 48–54 V DC redundant dual input (required for PoE); overload-current and reverse-polarity protection |
| Form factor | 52 × 140 × 110 mm metal fanless enclosure, IP30, DIN-rail mounted, 0.7 kg |
| Environment | −40 to +75 °C operating, −40 to +85 °C storage, 5–95 % humidity non-condensing |
| 可靠性 | 5-year warranty, 35-year MTBF |
| Software | STP/RSTP/MSTP, IEEE 802.1Q VLAN + GVRP, QoS, IGMP snooping/GMRP, OSPF/BGP/RIP/VRRP, 802.1X, RADIUS, SSH2, SNMPv1/v2c/v3, RMON, port trunking |
| EMI / EMS | FCC 47 CFR Part 15 Class A, EN55022/55035 Class A; IEC 61000-4-2/3/4/5/6/8 (Class 3–5) |
How do I install and power the ISM7312D?
- Mount to a 35 mm DIN rail using the integrated clip.
- Connect redundant 48–54 V DC dual power inputs — required for PoE delivery. Overload-current and reverse-polarity protection are built in.
- Install SFP modules (sold separately) into the 4× 1000BaseX SFP ports for fiber uplink.
- Connect powered devices (IP cameras, APs, VoIP phones) to the 8× PoE copper ports — PoE is negotiated per IEEE 802.3af/at automatically.
- Optional — connect a console cable to the management serial CLI port for initial setup. CLI and power cables are ordered separately.
How do I access the ISM7312D and configure PoE?
Connect a PC to any copper port and open a browser at the device’s management IP (per the nameplate). Log in with device-label credentials. Each of the 8 copper ports supplies up to 30 W per IEEE 802.3af/at. Other access paths: serial CLI, SSH2, SNMP v1/v2c/v3, RMON.
How does the ISM7312D differ from the ISM7012D?
Both are 12-port managed Layer 2+ industrial switches with the same 4× SFP + 8× GbE port layout, 68 Gbps backplane, software feature set, dimensions, and operating temperature range. The differences are PoE and the corresponding power-input voltage:
| ISM7012D | ISM7312D | |
| PoE | — | 8× 802.3af/at PoE, up to 30 W per port |
| Power input | 18–60 V DC redundant dual | 48–54 V DC redundant dual (PoE requires this range) |
| IP rating | IP40 | IP30 |
Pick the ISM7312D when downstream PoE devices — IP cameras, Wi-Fi APs, VoIP phones — need to be powered from the switch. Pick the ISM7012D for non-PoE deployments where wide-voltage power input (18–60 V DC) is preferred.