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Managed / Lite-Managed Network Switches

IET24242MH-S-RP Special item! Please contact us for availability

L2+ Hardened Grade Managed 24-port 10/100/1000Base-TX + 2-port 100/1000Base-SFP + 2-port 1000Base-SFP Ethernet Switch, Redundant AC inputs

The IET24242MH-S-RP is designed for high speed data communication for local and remote end connections. The Series is L2+rack-mount managed switches offering twenty-four 10/100/1000Mbps copper twisted-pair ports plus four 100/1000MbpsSFP ports. They support single/multi-mode, 1/2 fiber connections to extend distance up to 20Km for long-distance connections. The switches also support AC power inputs (100–240VAC). Some models of IET24242MH-S-RP support dual AC power inputs and no service interruption in case of apower supply failure. Multiple management interfaces (web, CLI, telnet and SNMP) allow user to configure and monitor the switcheasily. It also supports spanning tree protocol, STP/RSTP/MSTP for network redundancy. With OTS SuperXtra ring,the network recovery time can be reduced to less than 20 ms (in 250 nodes) to minimize the impact to the systems. In addition, the switches support different ring topologies including single/dual ring to ensure excellent reliability and availability of the 24 hours operationsystem. L2 management features include Port/Tag-based VLAN, IGMP snooping, link aggregation, Port-based security and QoS. The IGMP snoopingallows for high bandwidth demand applications such as video surveillance system. The support of Link Aggregation Control Protocolcombines the bandwidth of the multiple ports together to form high speed trunk. The IET24242MH-S-RP offers multiple LayerAccess Control List (ACL) to allow/deny packets based on source/destination MAC addresses, source/destination IP addresses and UDP/TCP ports. Housed in rack-mount fan-less case, the switch canbe installed in the 19” cabinetwith 1U space and well-suited in industrial environment. Model IET24242MH-S-RP switch operates from -40°C to 75°C and enable to work under extreme weather conditions. The Seriesisan ideal, reliable, secure and affordable transmission network solution and suitable for severe andmission-critical environments for industrial applications including surveillance systems, factory automation, intelligent transportation, railway systems, energy and power systems and etc.


General -

  • 24 Gigabit Copper ports plus 4 SFP ports 100Base or 1000Base (SX / LX / LH)
  • 9K Jumbo frames
  • L2 wire-speed switching
  • Network redundant LACP, Spanning tree STP, RSTP & MSTP, and quick Ring fail –over protection (<20ms)
  • Support Single & multiple rings
  • Advanced VLAN operations: IEEE802.1ad/QinQ VLAN, VLAN tag add/remove/replace
  • Private VLAN, port-based/tag-based/protocol-based VLAN
  • Multicasting support IGMP v1/v2/v3, proxy & snooping
  • Policy-based traffic control engine for actions of Deny, Allow, Queue mapping, rate limit, mirror, or CoS remark on any combination of specific
    Layer -2 /Layer- 3/ Layer-4 patterns
  • QoS (SPQ,WRR, SPQ+ WRR): Hierarchical per-port, per queue shaping & scheduling with bandwidth management

Ordering Information -

Available Model Description
IET24242MH-S-RP L2+ Hardened Grade Managed 24-port 10/100/1000Base-TX + 2-port 100/1000Base-SFP + 2-port 1000Base-SFP Ethernet Switch, Redundant AC inputs
Optional Accessories (to be purchased separately)
SFP (S)=SFP Option. Please select your SFP on our SFP Modules page at the back of the catalogue or our website www.ot-systems.comfor details.
Power Supply Please refer to the power supply information at the back of the catalogue,our website www.ot-systems.com, or consult OTS sales at sales@ot-systems.com for your power system design properly.
Package Checklist
- Managed PoE Ethernet Switch x 1
- Wall Mount Plates x 2
- DIN-Rail Clip x 1
- M3 Screws (for the Wall Mount Plates & DIN Clip) x 4
- DC Power Terminal Block x 1
- SFP Port Dust Covers x 4
- Quick Installation Guide x 1


Ethernet Interface 24 Gigabit Copper ports plus 4 SFP ports 100Base or 1000Base (SX / LX / LH)
Operating mode Store and forward, L2 wire-speed/non-blocking switching engine
MAC addresses 8K
Jumbo frames 9K Bytes
Copper RJ45 Ports
Speed 10/100/1000 Mbps
MDI/MDIX Auto-crossover Support straight or cross wired cables
Auto-negotiating 10/100/1000 Mbps speed auto-negotiation; Full and half duplex
SFP (pluggable) Ports
Port types supported Gigabit fiber multimode, fiber single mode, fiber long-haul single mode 100/1000Base (SX/LX/LH)
Fiber port connector LC typically for fiber (depends on module)
Input Power Redundant Input Terminals
Input voltage range 12-58 VDC or 100/240 VAC, 50Hz ~ 60Hz
Power Consumption Max. 40W
Reverse power protection Yes
Power Status indication Indication of power input status
Ethernet port indication Link & Speed
Ingress protection IP30
Dimensions 440 x 253 x 44 mm
Net weight 3.2 Kg
Unit with packing 3.5 Kg (include accessories)
Installation option 19’’ rack mounting
Software Features
Network Redundancy
Fast failover protection rings Link loss recovery <20ms
Single & Multiple rings supported
Spanning Tree Protocol IEEE 802.1D STP, IEEE 802.1w RSTP, IEEE 802.1s MSTP
BPDU forwarding and filtering
IEEE 802.3ad Port Trunk with LACP Static trunk or Dynamic via LACP (Link Aggregation Control Protocol)
Bridge, Virtual Local Area Networks (VLANs) & Protocols
Flow control IEEE 802.3x (Full Duplex) and Back-Pressure(Half Duplex)
Max VLANs 2048
VLAN Types Port-based VLANs, IEEE 802.1Q tag-based VLANs, IEEE 802.1v protocol-based VLANs, IEEE 802.1ad
Double Tagging (Q in Q) Private VLAN
VLAN operations Attach / Remove / Replacement VLAN tag
MVR (Multicast VLAN Registration) Yes
Multicast protocols IGMP v1, v2 and v3 with up to 512 multicast groups
IGMP snooping and querying
Immediate leave and leave proxy
Traffic Management engine & QoS
Policy-based access control engine Policy/profile-based Access Control List (ACL)
Multi-layer ACL support;
Flexible combination of well-known fixed Layer 2/3/4 fields:
- VLAN ID, Source/Destination MAC address, EtherType
- Source/Destination IP address, IP protocol number
- UDP or TCP, Source/Destination port number of TCP/UDP
- DSCP or ToS value
Actions per rule: Deny, Allow, Queue mapping, rate limit, mirror, CoS remark
Max number of profiles per switch: 20
Max number of rules per profile: 32
Number of queues per port 8
Scheduling schemes SPQ, WRR, SPQ + WRR
Traffic Shaper Hierarchical per port and per queue shaping & scheduling with bandwidth management
Traffic Policer Ingress rate limit in 1K bps granularity
TrTCM (Two Rate Three Color Marker) policer engine
Port security IP and MAC-based Access control; Policy-based Access control
IEEE 802.1X authentication Network Access Control
RADIUS Client for IEEE 802.1X
Storm Control Multicast / Broadcast / Flooding Storm Control on per port and per VLAN basis
User Management interfaces Cisco-like CLI (command line interface)
WEB-based Management
SNMP v1, v2c, v3
Telnet (5 sessions)
Management Security HTTPs, SSH
Radius Client for Management (*pending)
TACACS+ Client for Management (*pending)
Upgrade & Restore TFTP/FTP for Configuration Import/Export,
TFTP/FTP for Firmware Upgrade
Diagnostic Syslog
Policy-based stream mirroring
Ethernet Copper connection diagnostic tool
NTP/SNTP/td> Yes
Operating Temperature -40°C to 75°C (-40°F to 167°F) (cold startup at -40°C)
Storage Temperature -40°C to 85°C (-40°F to 185°F)
Relative Humidity 5% to 95% non-condensing
MTBF > 100,000 hrs
Compliance and Regulatory Approvals
ISO9001 Yes
Certification compliance CE/FCC
EMC FCC Part 15, CISPR 22 (EN55022) Class A, IEC61000-4-2, -3, -4, -5, -6
Vibration, shock & freefall IEC60068-2-6, -27, -32 (pending)
RoHS and WEEE RoHS (Pb free) and WEEE compliant


  • IET24242MH-S-RP Datasheet
  • 16 Dec 2022