DeviceMaster ® RTS 8-Port DB9

This DeviceMaster RTS 8-Port DB9 Ethernet device server from Comtrol operates well in extreme temperatures and is industrial grade for high level performance

Part Number: 99448-0

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    The Comtrol DeviceMaster RTS 8-Port DB9 is an eight-port device server designed for network-enabling serial communications devices. When used with the included NS-Link™ driver software and a host PC, the DeviceMaster RTS enables placement of COM or TTY ports anywhere on an Ethernet network or across the Internet. In applications where connecting legacy serial devices to a PC without software changes is a requirement, a pair of DeviceMaster RTS units can be used to create a point-to-point serial tunnel across the network that seamlessly transfers serial data via TCP or UDP socket connections.

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    • DeviceMaster RTS 8 Port DB9 Device
    • Power Supply
    • US Power Cord
    • Euro Power Cord
    • Loopback Plug
    • Rubber Bumpers, Mounting Brackets, & Screws
    • Bus Interface Specification 10/100 BASE-T
    • Memory
      • SDRAM 8 MB
      • Flash 4 MB
    • Enclosure Black Finished Steel
    • Installation Method Panel mountable
    • LED Indicators 100MB Ethernet, Collision, Ethernet Link/Activity, RX/TX per port, and Status
    • Dimensions 10.8" x 1.8" x 6.3"
      274.3 x 45.7 x 160 mm
    • Product Weight 4.82 lbs
      2.19 kg
    Electrical Specifications
    • Device
      • DC input Voltage 9-30 VDC
      • Current Consumption +24VDC 290 mA
      • Power Consumption (maximum) 7.0 W
    • Comtrol External Power Supply
      • Output Voltage 9-30VDC
      • Output Current +24VDC 500 mA
      • Line Frequency 47-63 Hz
      • Line Voltage 90-264 VAC
    • ESD Surge Protection Provides minimum of 15KV for a duration of 1ns @ 200A. All Ethernet components are rated to 1.5KV magnetic surge protection, in addition to the surge protection levels specified.
    Environmental Specifications
    • Air temperature
      • System On -40 to 75° C
      • System Off -40 to 85° C
    • Operating Humidity (non-condensing) 5% to 95%
    • Altitude 0 to 10,000 Feet
      3,048 m
    • Heat Output 23.8 BTU/Hr
    • MTBF (Mean Time Between Failures) 21.5 Years

    Serial Communications

    • Connector Type DB9M
    • Number of Ports 8
    • Software Selectable Interfaces RS-232, RS-422, or RS-485
    • Baud Rate 300 bps to 230.4 kbps
      • Receive Buffer 1024bytes
      • Transmit Buffer 256bytes
    • Device Driver Data Control
      • Data Bits 7 or 8
      • Parity odd, even, or none
      • Stop Bits 1 or 2
      • Flow Control Hardware & Software
    Ethernet Specifications
    • Network Protocols ARP, BOOTP, DHCP, HTTP, ICMP, Ping, RARP, RFC 1006 (ISO over TCP), RFC 2217, SNMP (MIB-II), TCP/IP & UDP socket services, Telnet, TFTP, and supports IP multicast data transmission
    • Connector Type RJ45F
    • Number of Ports 2


    • SNMP Support Monitoring only.
    • Other Event notification and Watchdog
    • Manufacturer's Warranty 5 Years
    Export Information
    • Packaged Shipping Weight 7.48 lbs
      3.39 kg
    • Package Dimensions 14.9" x 4" x 10.9"
      378.5 x 101.6 x 276.9 mm
    • UPC Code 7-56727-99448-0
    • Country of Origin USA
    • ECCN 5A992
    • Schedule B Number 8471.80.1000

    Device Drivers

    Regulatory Approvals
    • Emissions Canadian EMC requirements
      European Standard EN55022 FCC Part 15 Subpart B Class A limit
      European Standard EN55022
    • Immunity European Standard EN55024
      IEC 1000-4-2/EN61000-4-2: ESD
      IEC 1000-4-3/EN61000-4-3: RF
      IEC 1000-4-4/EN61000-4-4: Fast Transient
      IEC 1000-4-5/EN61000-4-5: Surge
      IEC 1000-4-6/EN61000-4-6: Conducted Disturbance
      IEC 1000-4-8/EN61000-4-8: Magnetic Field
      IEC 1000-4-11/EN61000-4-11: Dips and Voltage Variations
    • Safety IEC 60950/EN60950
      CSA C22.2 No. 60950/UL60950
    • Other Regulatory Approvals NEMA TS2 Compliant

    • Pinout Diagram

    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]

    DocumentDescriptionDownload File
    DeviceMaster ® RTS 8-Port DB9 User GuideContains detailed installation procedures and configuration information.
    Product Support and Service Information

    Part Number 99448-0

    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 RTS family products!

    View Warranty

    Extended Warranty Available

    Software & Drivers
    » Comtrol FTP Site