
Network Switches
Lantronix SISPM1040-384-LRT-C Hardened Managed Gigabit PoE+ Switch
The SISPM1040-384-LRT-C is a hardened Layer 2 managed switch with eight Gigabit PoE+ ports and four SFP slots, built to connect and power IP cameras and field devices in outdoor cabinets and factory enclosures.
From $1,478.70
Overview
About the Lantronix SISPM1040-384-LRT-C
The SISPM1040-384-LRT-C (also written SISPM1040-384 or SISPM1040384LRTC) connects and powers devices where commercial switches fail: traffic cabinets, outdoor enclosures and factory floors. It supplies a full 30 W on all eight PoE+ ports simultaneously from a 240 W budget, so every port can drive a PTZ camera or wireless radio without power planning. Four 100/1000Base-X SFP slots carry uplinks or ring connections over fiber.
The switch runs from -40 to +75 C in an IP30 housing 62 mm wide, on dual 44 to 57 VDC terminal-block inputs. Rings recover through G.8032 ERPS, G.8031 linear protection, MRP or Lantronix Rapid Ring in under 20 ms. Layer 2 features include 4K VLANs, Q-in-Q, LACP, 256-entry ACLs, 802.1X, IEEE 1588 v2 PTP and 9.6 KB jumbo frames on 24 Gbps store-and-forward switching. Certifications include NEMA TS-2 and UL Class 1 Div 2.
Embedded Device Management System (DMS) software adds topology, floor and map views of connected IP devices, plus traffic monitoring and network diagnostics, giving security integrators one place to manage the PoE+ network. PoE tools include Auto Power Reset, per-port DHCP, PoE scheduling and Always on PoE. Management is via web, CLI, Telnet or SNMP v1/v2c/v3, with an API documented in the series guides.
Key capabilities
- 30 W on all ports
- The 240 W PoE budget delivers 802.3at PoE+ at 30 W to all eight copper ports at once, with 802.3af devices also supported.
- Sub-20 ms ring recovery
- Rapid Ring recovers in under 20 ms, and the switch also supports ITU-T G.8032 ERPS, G.8031 EPS and IEC 62439-2 MRP.
- -40 to +75 C operation
- The IP30 unit operates from -40 to +75 C and carries NEMA TS-2 and UL Class 1 Div 2 listings for traffic cabinets and hazardous locations.
- Auto Power Reset for cameras
- Auto Power Reset power-cycles a powered device that stops responding, and PoE scheduling switches port power on and off by time.
- Built-in device management
- DMS software maps every IP device on the switch in topology, floor and map views and supports network diagnostics from the switch itself.
- Precision time and OAM
- IEEE 1588 v2 PTP, 802.1ag and Y.1731 support timing-sensitive and carrier-style Ethernet deployments on a Layer 2 platform.
How to choose the right SISPM1040-384-LRT-C part number
SISPM1040-384-LRT-C is a single switch model, and a DIN-rail bracket is included. The listed accessories size the installation. The 25104 DIN-rail supply outputs 48 to 55 VDC at 240 W, equal to the PoE budget; the 25160 supplies 480 W for headroom and the PS-DC-DUAL-5624T provides 345 W with 56 VDC and 24 VDC outputs. WMBH-01 adds wall mounting, OCA-P181610 is a vented outdoor cabinet with DIN rails, terminal blocks and wire glands, and EDCA-DIO-01 is an enclosure door contact alarm.
Configure & order
Find your SISPM1040-384-LRT-C part number
Every orderable SISPM1040-384-LRT-C configuration, filtered by the specs that actually differ between them. Pick what you need on the left and the matching part numbers appear here.

SISPM1040-384-LRT-C
12 total ports · 8 copper ports · 1 GbE · 4 SFP uplinks
$1,478.70
17 in stock
Complete the deployment
Accessories, renewals & add-ons
Everything sold for the SISPM1040-384-LRT-C, organized by what it does — power, mounting & enclosures— each with why you'd add it.
Power
3 items
25104
25104
Industrial DIN rail mounted power supply with 85-264 VAC or 124-370 VDC input and 48~55 VDC output. It delivers 5.0A and 240 Watts for Lantronix switch accessory deployments.
$495.00
1 in stock

25160
25160
Hardened DIN rail mounted power supply with 90-264 VAC or 127-370 VDC input and 48 ~ 55 VDC, 10A, 480 Watts output.
$517.00
3 in stock
PS-DC-DUAL-5624T
PS-DC-DUAL-5624T
Stand-alone hardened 345 Watt power supply with 56VDC and 24VDC dual output. It supports a compact Stand-Alone or DIN Rail form factor.
$860.20
Ships on backorder
Mounting & enclosures
4 items
DRBH-01
DRBH-01
DIN rail bracket kit for hardened switches. It is listed for SISPM, SISGM and SISTx products, with compatible products identified by Lantronix for multiple SISPM1040, SISGM1040,…
$11.00
1 in stock

WMBH-01
WMBH-01
Wall mount bracket for SISPM1040-384-LRT-C, SISPM1040-362-LRT, and SISPM1040-582-LRT switches.
$33.00
3 in stock

EDCA-DIO-01
EDCA-DIO-01
EDCA-DIO-01 Enclosure Door Contact Alarm mounts within a telecom equipment cabinet to help alert network managers when the cabinet door has been opened.
$138.00
Ships on backorder

OCA-P181610
OCA-P181610
18 x 16 x 10” polycarbonate outdoor cabinet assembly for Lantronix outdoor switches.
$948.75
Ships on backorder
Compatibility taken from the Lantronix part-number tables for the SISPM1040-384-LRT-C. Don't see what you need? Request a quote — we can source the full Lantronix catalog.
Where the SISPM1040-384-LRT-C is used
- Powering PTZ IP cameras in roadside traffic cabinets
- Fiber-ringed camera networks for city intersections
- Hardened PoE+ for factory-floor sensors and access points
- Camera and data links in hot, airflow-restricted enclosures
SISPM1040-384-LRT-C datasheets & documentation
- Product BriefPDF
- SISPM1040-300 Series Product Brief (A4)PDF
- SISPM1040-300 Series Quick Start Guide Rev GPDF
- SISPM1040-300 Series Web User Guide Rev NPDF
- SISPM1040-300 Series API User Guide Rev CPDF
- Choosing the best switch for your IP camera networkPDF
- SISPM1040-300 Series CLI Reference Guide Rev NPDF
- SISPM1040-300 Series Install Guide Rev MPDF
SISPM1040-384-LRT-C FAQ
How much PoE power does the SISPM1040-384-LRT-C provide?
The switch has a 240 W PoE budget and supplies up to 30 W per port on all eight PoE+ ports simultaneously. Lantronix recommends input above 52 VDC for full 802.3at PoE+ output and above 48 VDC for 802.3af PoE.
What power supply should I use with the SISPM1040-384-LRT-C?
The switch accepts 44 to 57 VDC on dual terminal-block inputs. The 25104 DIN-rail supply (48 to 55 VDC, 240 W) equals the PoE budget, and the 25160 (480 W) adds headroom. The PS-DC-DUAL-5624T (345 W, 56 VDC and 24 VDC) is also listed as compatible.
What is the operating temperature of the SISPM1040-384-LRT-C?
It operates from -40 C to +75 C with 5% to 95% non-condensing humidity and altitudes up to 10,000 ft. Storage is rated -40 C to 85 C. The housing is rated IP30, and MTBF is 92,110 hours.
Which ring protocols does this hardened switch support?
It supports ITU-T G.8032 Ethernet Ring Protection Switching, G.8031 linear protection, Media Redundancy Protocol (IEC 62439-2), RSTP and MSTP, and Lantronix Rapid Ring with recovery under 20 ms, set by a 2-pin DIP switch.



