DeviceMaster ® Serial Hub 8-Port

This DeviceMaster Serial Hub 8-Port Ethernet device server from Comtrol has no cable distance limitations, RS-232 serial interface communications, and operates in extreme temperatures

Part Number: 99465-7

  • RoHS2 compliant under CE
  • No serial cable distance limitations – 8-Port Ethernet device server enables communication between a host PC and serial devices located anywhere across an Ethernet network
  • RS-232 serial interface on DB9 serial ports – providing increased shielding in noisy electrical environments
  • 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 e-mail event notification – alerts administrator of potential connection and security issues
  • Rugged metal housing – enables panel and optional rack mounting
  • Built-in two-port 10/100 Ethernet – simplifies network connection
  • Temperature rated for extreme conditions – operating temperature of -37° to 74°C enables DeviceMaster to function in a wide variety of harsh environments
  • PortVision remote monitoring and management software – automatically locates DeviceMasters on the network and enables user to view status, update firmware, and resolve issues remotely
  • Security featuresSSL & SSH management, SSL serial data stream encryption
  • IPV6 support

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  • Specifications
  • Overview
  • Box Contents
  • Order Info

System Specifications 99465-7

  • 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
  • Product Dimensions10.8” x 6.3” x 1.8”
    274.3 x 160 x 45.7 mm
  • Product Weight 4.82 lbs
    2.19 kg
Electrical Specifications
  • Device
    • DC Input Voltage 9 to 30VDC
    • Current Consumption +24VDC 132 mA
    • Power Consumption (maximum) 3.2 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 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 10,000 Feet
    3,048 m
  • Heat Output 10.9 BTU/Hr
  • MTBF (Mean Time Between Failures) 24.0 Years

Serial Communications

  • Connector Type DB9M
  • Number of Ports 8
  • Supported Interfaces RS-232
  • Baud Rate 300 bps to 230.4 kbps
    • Receive Buffer 1024 bytes
    • Transmit Buffer 256 bytes
  • 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 & UDP socket services, Telnet, TFTP, and supports IP multicast data transmission
  • Connector Type RJ45F
  • Number of Ports2


  • SNMP Support Monitoring only.
  • Other Event notification and Watchdog
  • Manufacturer's Warranty 5 Years
Export Information
  • Packaged Shipping Weight 7.46 lbs
    3.38 kg
  • Package Dimensions 19.63" x 4" x 14"
    498.6 x 101.6 x 355.6 mm
  • UPC Code 7-56727-99465-7
  • Country of Origin USA
  • Schedule B Number 5A992
  • FCC License Number 8471.80.1000

Device Drivers

  • Linux
    Microsoft® Windows® 7
    Microsoft® Windows® 2008 Server
    Microsoft® Windows® Vista
    Microsoft® Windows Server® 2003
    Microsoft® Windows® XP
    Microsoft® Windows NT® 4.0 (Legacy)
    Microsoft® Windows® 2000 (Legacy)
Regulatory Approvals
  • Emissions Canadian EMC requirements
    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 Third Edition
  • Other Regulatory Approvals

  • Pinout Diagram

The Comtrol DeviceMaster Serial Hub 8-Port 99465-7 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 Serial Hub 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 Serial Hub 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. Product is fully compliant with the RoHS Directive.

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  • Comtrol Software & Documentation CD

Product Support and Service Information

Part Number 99465-7

Sales Support

Call +1.763.957.6000, or e-mail sales@comtrol.com

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 +1.763.957.6000, 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 Serial Hub products!View Warranty

Extended Warranty Available