DeviceMaster ® DM-2304

4-Port serial device server with DB9 connectors and dual Ethernet ports

Part Number: 99610-1

PortVision DXweb

Engineering Drawing

Download Specifications
    • Wide DC input voltage range (5-30 volts)
    • Redundant power input for fail-safe power
    • RS-232/422/485 software selectable interfaces
    • DB9 male serial connectors
    • PortVision DX
    • Screw terminal power connector
    • Dual Ethernet ports for daisy-chaining devices
    • 25KV surge protection for serial ports
    • Features DIN rail mounting
    • Wide operating temperature range (-40º to 75º C)
    • NEMA TS2 certified
    • Configuration management via SSL & SSH
    • SSL/TLS serial data stream encryption up to TLS 1.2
    • TLS 1.2 compliant when running SocketServer
    • IPv6 support
    • Real-time email event notification
    • Software Controllable integrated 120Ω Termination Resistor for both the Transmit and Receive side in RS-422/485 Mode
    • NEMA TS2 Certified
    • UL Safety Certified

    The DeviceMaster DM-2304 serial device server can be used to network-enable four serial devices on any Ethernet network and is ideal for applications in: traffic and transportation, power utility, industrial automation, material handling and any project that requires serial-to-Ethernet communication with DIN rail-based equipment installations.

    • DeviceMaster DM-2304 Device
    • Loopback Plug
    • Interface Specification 10/100BASE-T Ethernet
    • Memory
      • SDRAM 32 MB
      • Flash 8 MB
    • Enclosure UL94-V0 Plastic
    • Installation Method DIN Rail (35mm)
    • LED Indicators Status, Ethernet Port Link and Activity
    • Dimensions 4.6” x 3.9” x 1.8”
      116.8mm x 99.1mm x 45.7mm
    • Product Weight 0.45lbs
    Electrical Specifications
    • Input Voltage 5 – 30VDC
    • Power Consumption (Max.) 3.0 Watts
    • Power Input Redundancy Dual Redundant Power Input
    • ESD Surge Protection Provides minimum of 25KV protection on all serial lines. All Ethernet components are rated to 1.5KV magnetic surge protection.
    Environmental Specifications
    • Air temperature
      • System On -40 to 75°C
      • System Off -40 to 85°C
    • Operating Humidity (non-condensing) 0% to 95%
    • Altitude 0 to 10,000 Feet
      3,048 m
    • MTBF (Mean Time Between Failures) 42.3 Years

    Serial Communications

    • Connector Type DB9 Male
    • Number of Ports 4
    • Software InterfacesRS-232
      RS-485, 4-wire, Master
      RS-485, 4-wire, Slave
      RS-485. 2-wire
    • Termination Resistor for RS422/485 Software controllable 120Ω termination resistors available for each transmit and receive differential pair on every port. The 120Ω termination resistors can be enabled between TX+ and TX- OR RX+ and RX- or both on every port
    • Baud Rate 300 bps to 230 kbps
      • Receive Buffer 4.5 KB
      • Transmit Buffer 4.5 KB
    • Device Driver Data Control
      • Data Bits* 5, 6, 7 or 8
      • Parity** Odd, Even, Mark, Space, or none
      • Stop Bits*** 1, 1.5, or 2
      • Flow Control Hardware, Software, None
      • * Data bits 5, 6: Supported only in RFC2217 and socket mode
      • ** Mark, Space parity: Supported only in RFC2217 and socket mode
      • *** Stop bit 1.5: Supported only when used with 5 data bits
    Ethernet Specifications
    • Number of Ports 2
    • Speed 10/100Mbps
    • Connector Type RJ45F Auto MDI/MDI-X
    • LED Ethernet Link (Green)
      Ethernet Activity (Amber)
    • Ethernet specific features Ethernet packet switching, Auto Negotiation, Link/Activity Status LED
    • Network Protocols ARP, BOOTP, DHCP/RARP, HTTP, HTTPS, SSH, SSL/TLS, ICMP, RFC 1006 (ISO over TCP), SNMP (MIB-II), TCP/IP & UDP socket services, Telnet, and TFTP, and supports IP multicast data transmission


    • Other Software Features Lowest Latency
      NS-Link COM/TTY device drivers
      TCP/IP & UDP Socket Services
      Telnet/RFC2217 COM Port control
      PortVision DX remote management
    • Manufacturer's Warranty 5 Years
    Export Information
    • Packaged Shipping Weight 0.85lbs
    • Package Dimensions 5-11/16" x 5-11/16” x 3-3/8”
      144.46 x 144.46 x 85.73mm
    • UPC Code 7-56727-99610-1
    • Country of Origin USA
    • ECCN 5A992
    • Schedule B Number 8471.80.1000

    Device Drivers

    Regulatory Approvals
    • Emissions FCC Part 15 Subpart B
      Class A limit
      Canadian EMC Requirements
      European Standard EN61000-6-4
      European Standard EN55022
      AS/NZS CISPR 22
    • Immunity European Standard EN61000-6-2
      European Standard EN55024
      IEC1000-4-2/EN61000-4-2: ESD
      IEC1000-4-3/EN61000-4-3: RF
      IEC1000-4-4/EN61000-4-4: Fast Transient/ Burst
      IEC1000-4-5/EN61000-4-5: Surge
      IEC1000-4-6/EN61000-4-6: Conducted Disturbance
      IEC1000-4-8/EN61000-4-8: Magnetic Field
      IEC1000-4-11/EN61000-4-11: Voltage Dips and Voltage Variations
    • Safety UL 61010-1, UL 61010-2-201
      CSA C22.2 No. 61010-1-12
      CSA C22.2 No. 61010-2-201:14
    • Other Regulatory Approvals European Standard: RoHS 2 compliant under CE
    • Regulatory Approvals

      Regulatory Logos

    Pinout Diagrams
    • RS-232 RS-422
      RS-485 Full Duplex RS-485 Half Duplex
    Find a Distributor

    » Industrial Distributors
    » North American Distributors
    » International Distributors

    Pre-Sales Questions

    Comtrol's Pre-sales Team
    For sales questions or to locate a reseller near you.

    +1-800-926-6876 (1-800-Go Rocket)
    Fax: +1-763-957-6001
    [email protected]

    Comtrol's Industrial Automation Sales
    For sales questions or to locate an industrial distributor near you.

    +1-800-926-6876 (1-800-Go Rocket)
    Fax: +1-763-957-6001
    [email protected]

    Product Support and Service Information

    Part Number: 99610-1

    Sales Support

    Call +1.763.957.6000, or e-mail [email protected]

    Technical Support

    For technical assistance, our U.S.-based technical support team is only a phone call away.

    Call +1.763.957.6000, or visit our forum .


    Comtrol offers a 30-Day satisfaction guarantee and a 5-year limited warranty on all DeviceMaster DM family products!

    View Warranty

    Extended Warranty Available