DeviceMaster 500 4-Port DB9 VDC 500Kbps


  • No serial cable distance limitations – enables communication between a host PC and serial devices located anywhere across an Ethernet network
  • Software selectable RS-232/422/485 serial interfaces – simplify setup and eliminate mechanical tampering associated with DIP switch products
  • Application compatibility – supports native COM, TTY, or TCP/IP Socket communication modes
  • Web-based configuration – makes setup and management changes quick and easy
  • Real-time email event notification – alerts administrator of potential connection and security issues
  • Temperature rated for extreme conditions – wide - 37° to 74°C industrial temperature range enables DeviceMaster to function in a wide variety of harsh environments
  • Rugged stainless steel housing – enables DIN rail or panel mounting
  • Variable power input – eliminates need for power converters
  • PortVision® Plus enterprise monitoring and management software – automatically monitors devices on the network and enables user to view status, update firmware and resolve issues remotely

  • DeviceMaster 500 1 Port DB9M Device
  • Power Supply
  • US Power Cord
  • Euro Power Cord
  • Loopback Plug
  • Customer Service Label
  • Rubber Bumpers, Mounting Brackets, & Screws
  • Power Connector Pins
  • Power Connector Housing
  • Software/Documentation CD
  • Bus Interface Specification 10/100BASE-T
  • Memory
    • SDRAM 8 MB
    • Flash 4 MB
  • EnclosureBlack Finished Steel
  • Installation MethodPanel Mountable
  • LED Indicators 100MB Ethernet, Collision, Ethernet Link/Activity, RX/TX per port, and status
  • Dimensions 10.8" x 1.5" x 6.3"
  • Product Weight 55 oz
Electrical Specifications
  • Device
    • DC Input Voltage 9-30VDC
    • Current Consumption +24VDC 200 mA
    • Power Consumption (max) 4.8 W
  • External Power Supply
    • Output Voltage 9-30VDC
    • Output Current +24VDC 500mA
    • Line Voltage 90-264VAC
    • Line Frequency47-63Hz
  • ESD Surge Protection Provides minimum of 15KV protection for all serial lines. All Ethernet components are rated to 1.5KV magnetic surge protection.
Environmental Specifications
  • Air temperature
    • System On -37 to 74° C
    • System Off -40 to 85° C
  • Operating Humidity (non-condensing) 5% to 95%
  • Altitude 0 to 10000 Feet
  • Heat Output 16.4 BTU/Hr
  • MTBF (Mean Time Between Failures) 25.0 Years

Serial Communications

  • Connector TypeDB9M
  • Number of Ports4
  • Software Selectable RS-232
  • Baud Rate 9600 and 500Kbps
    • 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, or None
Ethernet Specifications
  • Network Protocols ARP, BOOTP, DHCP, HTTP, ICMP, Ping, RARP, RFC 1006 (ISO over TCP), RFC 2217, SNMP (MIB-II), TCP/IP, Telnet, TFTP, and UDP socket services
  • Connector TypeRJ45F
  • Number of Ports2


  • Other Event notification, lowest latency, NS-Link COM/TTY port redirector, PortVision remote management, and Watchdog reset
  • Manufacturer's Warranty 5 Years
Export Information
  • Packaged Shipping Weight 7.18lbs
  • Package Dimensions 14.9" x 4" x 10.9"
  • UPC Code 7-56727-99444-2
  • Country of Origin USA
  • ECCN5A991
  • Schedule B Number 8471.80.1000

Device Drivers

  • Linux
  • Microsoft® Windows Server® 2003
  • Microsoft® Windows® 2000
  • Microsoft® Windows® XP
  • Microsoft® Windows® Vista
Regulatory Approvals
  • Emissions Canadian EMC Requirements
    European Standard EN55022
    CISPR 22
  • 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 (RECOGNIZED)
    CSA C22.2 No. 60950/UL60950 Third Edition
  • Other Regulatory Approvals

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

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

Product Support and Service Information
Sales Support

Call +1.763.494.4100, or e-mail

Technical Support

All Comtrol products come with easy-to-use documentation on a CD. For technical assistance, our U.S.-based technical support team is only a phone call away.

Call +1.763.494.4100, or submit your question online, or visit our forum .


Comtrol offers a 30-Day satisfaction guarantee and a 5-year limited warranty on all DeviceMaster 500 family products! Extended Warranty Available.

Software & Drivers
» Comtrol FTP Site