Ethernet Modem
with Switch

Dial into your Ethernet networks with an
Ethernet Dial-Up Modem

5 Port Industrial Ethernet Switch with Integrated Sixnet Modem SLX-5MS-MDM-1

The SLX-5MS-MDM-1 is a Remote Access Switch (Ethernet Land-Line Modem) that combines an Industrial Telephone Modem with a 5 port industrial Ethernet managed switch. This powerful combination allows you to easily and securely access your Ethernet network from any remote location over standard telephone lines. Avoid those costly site visits. Save time and money!

The SL-5MS was designed to be rugged, reliable, real-time and secure. The ruggedness comes from its wide operating temperature range, industrial ratings (UL, CE, marine, hazloc, etc.) plus Sixnets 25+ years of expertise in designing truly industrial rated products. The reliability is field proven with over 1,000,000 service-free hours (MTBF) based on real-world data of thousands of switches currently in the field. The real-time operation is possible due to Sixnets open Linux software that supports advanced networking functions such as SNMP, RSTP, QoS, VLAN, IGMP and much more. Plus there is real security using HTTPS, SSH, SNMPv3, password protection and authentication. Sixnet industrial Ethernet switches are the toughest and most reliable with a unique 20-year support and service promise!


  • Slim 5 port Industrial Ethernet managed switch with integrated industrial telephone modem

  • Easy and secure dial-in and dial-out connections up to 56 Kbps using PPP (point-to-point protocol)

  • Easy to configure management and modem functions including PPP, SNMP, VLAN, QoS, IGMP and much more

  • Truly rugged design with -40 to 75C operation


  • Five Ethernet Ports that are fully IEEE 802.3 compliant
  • All 10/100 RJ45 ports are auto-detecting, auto-crossover and auto-polarity
  • Integrated industrial telephone modem with dual
    RJ11 modular jacks
  • Self-test / alarm output for reporting errors
  • Dual redundant power inputs with surge and
    spike protection
  • DIN rail or direct panel mounting (no extra kits required)


  • Easy and secure dial-in connections
  • PPP (point-to-point) for dial-up connections
  • Automatic dial-out on a trigger input
  • Phone connections up to 56 Kbps (V.90)
  • Full data compression and error correction options
  • Compliant with phone (PSTN) systems world-wide


  • Rapid Spanning Tree (RSTP) for fast redundant rings
  • SNMPv1 and v2 network management
  • SNMPv3 authentication & encryption for security
  • SNMP notifications (traps) for report on event
  • Priority Queuing (QoS/CoS) for real-time operation
  • IGMP for Multicast filtering (snooping & querying)
  • VLAN for convenient traffic segregation
  • Open-source programming for ultimate flexibility
  • Broadcast & multicast storm protection
  • RMON & port mirroring for advanced diagnostics
  • True security with HTTPS, SSL, SSH, SNMPv3 & more
  • PPP (Point-to-Point Protocol) for Ethernet to phone links
  • RIP (Router Information Protocol)
  • Ultra-reliable with 1,000,000+ service-free hours (MTBF)
  • Free field-installable upgrades forever
  • Unique 20-year support and service policy
  • UL, CSA (CUL), & CE certified
  • Hazardous locations rated for Class I, Div. 2
    (Zone 2) areas


  • Operation: Store and forward wire speed switching, non-blocking
  • Mode: Full or half duplex operation with flow control supported on all ports
  • MAC Addresses: 2048
  • Memory Bandwidth: 3.2 Gbps
  • Latency (typical): 5 us for 100 Mbps and 16 us for 10 Mbps (plus frame time)
  • Ethernet Isolation: 1500 Vrms 1 minute
  • Console Port: RS232 (RJ45), Fixed settings:
    9600, 8N1 (9600 Bps, 8 data bits, parity =
    None, stop bits = 1, flow control)
  • Maximum Data Rates: 56 Kbps
  • Compatibility: V.90, V.34, V.32, V.32 bis,
    V.22, V.22 bis, V.21
  • Data Compression: V.42 bis
  • Error Correction: V.42 MNP or LAP
  • Ringer: 0.3
  • Jacks: 2 RJ11 (phone and line)
  • Command Sets: Standard AT and S register
  • Country Compatibility:  World-wide (100+ countries)
  • Telecom Ratings:   FCC Part 68; Industry Canada
    CS03-8; CTR21 (98/482/EC);
    ACA TS 001 and ACA TS 002
  • RJ45 Ports: Up to five RJ45 ports that are fully
    IEEE 802.3 compliant
  • RJ45 Speed & Duplex: Configurable or 10/100 auto-detecting for speed & duplex (full or half)
  • RJ45 MDI/MDIX: Auto-mdi/mdix-crossover automatically supports either straight or crossed cables
  • RJ45 Polarity: Auto-polarity for automatic correction of crossed TXD and RXD pairs
  • Devices Supported: all IEEE 802.3 compliant
    devices are supported
  • Protocols: PPP, RIP, SNMPv1/v2/v3, RMON, DHCP, SNTP, TFTP, STP, RSTP, QoS/CoS/ToS/DS, IGMPv1/v2, VLAN (tag and port based), HTTP, HTTPS (SSL & TSL), Telnet, SSH and more
  • Industrial Protocols Supported:  Modbus/TCP, EtherNet/IP, PROFInet, Foundation Fieldbus HSE and others
  • Standards: IEEE 802.3, 802.3u, 802.3x, 802.1D/w, 802.1p, 802.1Q
  • Management Interfaces: Text (Telnet& SSH), CLI (command line interface) and SNMP (see the user manual for supported MIBs)
  • Open Source Linux: The Linux Advantage - Contact SIXNET for more info
  • PowerInput: Dual redundant power inputs for redundant power supplies
  • Input Voltage Range: 10 to 30 VDC
  • Power Consumption: 5 W typical with all ports
    linked and active
  • Industrial surge and spike protection: 15 kW peak, 5 kW (10 times for 10 us)
  • Self-test / Alarm Output: Same voltage as power input;
    0.5 Amps max.
  • PLC / Trigger Input: Voltage 10-30 VDC; typical current input: 6.5 mA @ 24 VDC
  • Operating Temperature: -40 to 75C
    (cold startup at -40C) 
  • Storage Temperature: -40 to 85C
  • Humidity:  5 to 95% RH (non-condensing)
  • Vibration: IEC68-2-6
  • Shock: IEC68-2-27
  • Freefall: IEC68-2-32
  • Electrical Safety: UL508 & CSA C22.2/14 per CUL, EN61010-1
  • EMC: FCC part 15, ICES-003, EN55022, IEC61326-1, IEEE C37.90
  • Hazardous Locations: UL1604, CSA22.2/213 per CUL (Class I, Div. 2, Groups A, B, C, D); EN50021/EN60079-15 (Zone 2), ATEX Group II, Cat 3 (Zone 2), EEx nA II T4 X 
  • MTBF Mean Time Between Failure: >1,000,000 hours
  • RoHS and WEEE RoHS (Pb free) and WEEE compliant
  • ISO9001:2000: Certified "Total Quality" company
  • Industrial Warranty: 3 years with product registration
  • Case: Slim line, ideal for DIN rail mounting
  • Material: Corrosion-resistant aluminum with
    clear protective coating
  • Protection: IP30 protection from dust and debris
  • Mounting: DIN rail or direct to panel (no optional kits or accessories required)
  • Dimensions:  5.2" x 2" x 3.82"
    (13.21 cm x 5.08 cm x 9.70 cm)
  • Weight: 10 oz (0.28 kg)
  • Dimensions (L x W x H): see mechanical drawing

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