Closed Loop Automation
Lantronix LM4 Compact Console Servers
The LM4 is a compact 2- or 4-port out-of-band console server that brings LM-Series automation, security and compliance features to IDF wiring closets and small sites where a full rack console server is too large.
From $550.00
Overview
About the Lantronix LM4
IDF networking closets have often gone without out-of-band management because they are too numerous, or too costly per site, for a data-center console server. The LM4 (also written LM-4) targets that gap. It gives access, monitoring and control of switches, routers and other gear over serial consoles whether the production network is up or down, in a 1.75 in. tall chassis only 6.25 in. wide and deep.
The LM4 manages up to four devices directly over RS-232 and supports up to 48 virtual ports. Connectivity includes a 10/100/1000BASE-T Ethernet interface, a 1 Gbps SFP port, an RS-232 console port and two USB-A ports. A 16GB eMMC drive supports TCG Opal 2.0 and 256-bit AES encryption. Power is 9 to 60 VDC at under 24 W, supplied by an included 12 VDC external adapter, and the operating range is 0 to 55 C.
Like the larger LM-Series console servers, the LM4 runs LMOS software with enterprise-grade automation, cybersecurity and compliance functions, including ROMmon recovery, configuration rollback, network automation tools, zero-touch deployment and virtual serial console ports. Engineers manage it through the CLI or the Lantronix Control Center, which automates actions across LM-Series fleets without scripting.
Key capabilities
- Sized for IDF closets
- At 44.45 x 158.75 x 158.75 mm and 1.42 kg, the LM4 fits wiring closets and small sites, with a rack mount ear in the box.
- 48 virtual ports
- Beyond its two or four physical RS-232 ports, the LM4 supports up to 48 virtual ports for reaching additional devices over the network.
- Copper and fiber uplinks
- A 10/100/1000BASE-T port and a 1 Gbps SFP port give the console server a copper or fiber path back to the management network.
- Encrypted local storage
- 16GB of eMMC flash supporting TCG Opal 2.0 and 256-bit AES encryption keeps data stored on the console server encrypted.
- Wide DC power input
- The 9 to 60 VDC input draws under 24 W and runs from the supplied 12 VDC adapter or from DC power already in the closet.
How to choose the right LM4 part number
LM4 part numbers combine serial port count and power cord region. LM4-2S models have two RS-232 ports and LM4-4S models have four; all include two Ethernet ports (copper and SFP) and LMS. The suffix sets the power cord and adapter plug: -NA for North America, -UK for the United Kingdom and -EU for Europe, for example LM4-4S-NA or LM4-2S-EU. The 61-5900-00 single port license is an additional port license activated after device purchase. USB-LCDA, USB-CAA and the 61-5010-01 temperature/humidity sensor are optional accessories.
Configure & order
Find your LM4 part number
Every orderable LM4 configuration, filtered by the specs that actually differ between them. Pick what you need on the left and the matching part numbers appear here.
LM4-4S-NA
$700.00
Ships on backorder
LM4-4S-UK
$700.00
Ships on backorder
LM4-4S-EU
$700.00
Ships on backorder
LM4-2S-NA
$550.00
Ships on backorder
LM4-2S-UK
$550.00
Ships on backorder
LM4-2S-EU
$550.00
Ships on backorder
Complete the deployment
Accessories, renewals & add-ons
Everything sold for the LM4, organized by what it does — cables & adapters, software, licenses & renewals, other add-ons — each with why you'd add it.
Cables & adapters
2 items
ACC-500-103
ACC-500-103
6 ft RJ-45/Serial network/data transfer cable. It connects from RJ-45 Network male to DB-9 Serial female for DTE devices including terminals, printers and console ports.
$14.25
Ships on backorder
Adapter, USB Console
USB-CAA
USB Console Adapter for LM83X, LM80, LM4, 500 and 5000 systems.
$170.00
Ships on backorder
Software, licenses & renewals
1 itemSingle Port License
61-5900-00
Single Port License for the LM4 series. It is an additional port license activated after device purchase.
$125.00
Ships on backorder
Other add-ons
2 itemsTemperature/Humidity Sensor
61-5010-01
Temperature/Humidity Sensor accessory for LM83X, LM80, and LM4 systems.
$145.00
Ships on backorder
USB Handheld LCD/Keypad Module
USB-LCDA
USB Handheld LCD/Keypad Module for LM83X, LM80, LM4 and 500 systems. It provides the listed handheld LCD display and control module accessory for compatible Lantronix deployments.
$250.00
Ships on backorder
Compatibility taken from the Lantronix part-number tables for the LM4. Don't see what you need? Request a quote — we can source the full Lantronix catalog.
Where the LM4 is used
- Out-of-band console access to IDF access switches
- Remote recovery of routers and firewalls at small branch sites
- Configuration rollback after failed changes at edge closets
- Environmental monitoring of closets with a temperature/humidity sensor
LM4 datasheets & documentation
LM4 FAQ
How many devices can the Lantronix LM4 manage?
The LM4 supports up to four devices directly over RS-232 serial connections, depending on whether you choose a 2-port or 4-port model, plus up to 48 virtual ports for devices reached over the network.
What is the difference between LM4-2S and LM4-4S models?
LM4-2S models have two serial console ports and LM4-4S models have four. Both have a 10/100/1000 Ethernet port, a 1 Gbps SFP port, 16GB of encrypted eMMC storage and include LMS. The -NA, -UK and -EU suffixes set the power cord and adapter region.
What comes in the box with the LM4 console server?
The box includes the LM4 console server, a power cord, a power supply, a 2 m RJ45 Cat5 cable, a rack mount ear, two mounting screws and a quick start guide.
What power does the LM4 need?
The LM4 accepts 9 to 60 VDC and uses less than 24 W. The included external power supply takes 100-240 VAC, 50-60 Hz input and outputs 12 VDC at 3 A.
What is the LM4 operating temperature range?
The LM4 operates from 0 to 55 C (32 to 131 F) at mean sea level with 10% to 90% non-condensing relative humidity. Non-operating storage is rated -30 to 60 C.
