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IMG-2102T – Industrial 1-port RS232/422/485 Modbus Gateway with 1-Port 100BASE-FX SFP


Available on backorder

Industrial 1-port RS232/422/485 Modbus Gateway with 1-Port 100BASE-FX SFP

  • One DB9 interface that supports RS232
  • One terminal block interface that supports 2-wire RS485 and 4-wire RS422/RS485 operation
  • Asynchronous serial data rates up to 921600bps
  • 1-port 100BASE-FX SFP slot
  • Built-in IP-based Web interface and telnet interface for remote management
  • IP30 metal case
  • -40 to 75 degrees C operating temperature
  • DIN-rail and wall-mount designs
  • Redundant power design

          Product Availability : On Order Basis, 4-8 Weeks


Available on backorder

Warranty: 12 Months

Standard Industrial Modbus TCP/RTU/ASCII Network Integration

PLANET has added the Industrial Modbus TCP/IP Protocol to its easily-integrated industrial management level products that come with SCADA/HMI system and other data acquisition systems on factory floors. Moreover, the industrial IT SNMP network is upgraded to the Industrial automation Modbus TCP/IP network. PLANET industrial management level products with the Modbus TCP/IP Protocol offer flexible network connectivity solutions for the industrial automation environment.

To complete the industrial automation environment application solution, PLANET has announced a first industrial level 1-port RS232/422/485 Modbus Gateway, IMG-2105AT, a bridge that converts between Modbus TCP/IP Protocol and Modbus RTU/ASCII Protocol. It features a wide operating temperature range from -40 to 75 degrees C and a compact but rugged IP40 metal housing.

A Conversion Bridge for Flexible Network Deployment 

The IMG-2105AT can be a conversion bridge between the equipment with the Modbus RTU/ASCII Protocol and the administrator workstations that run the Modbus TCP/IP Protocol. The RS232/422/485 serial interface of the IMG-2105AT provides the Modbus RTU/ASCII operation mode and various baud rate options to meet the demand of integration between the Modbus TCP/IP Protocol, Modbus RTU Master/Slave Protocol and Modbus ASCII Master/Slave Protocol.

The advantage of having the IMG-2105AT is to assist users to build an industrial environment between the Modbus TCP/IP Protocol and the Modbus RTU/ASCII Protocol easily, thus offering an application solution to the industrial control equipment without Ethernet ports and the industrial control equipment can only control through an industrial PC workstation or industrial control panel.

In addition, the effective integration solution of Modbus Ethernet devices, Modbus serial equipment or multi Modbus master / slave in an industrial hybrid network brings the following:

  • Master mode supports up to 32 TCP slave connection requests
  • Slave mode supports up to 32 TCP master connections

Remote Management 

The IMG-2105AT makes the connected industrial Modbus RTU/ASCII equipment become IP-based facilities and is able to connect to the Modbus TCP/IP network via its RS232/422/485 serial interface and 10/100BASE-TX RJ45 Ethernet port. It provides a remote web management and telnet Interface for efficient remote network management.  The IMG-2105AT also provides PLANET Modbus Gateway utility tool and supports PLANET Smart Discovery utility to help network administrator to easily get the current IP subnet address information or change the IP subnet address setting of the IMG-2105AT.

Modbus Serial Port State Monitoring

The IMG-2105AT shows the details of the total bytes transmitted and received on the RS232/422/485 serial interface, and the detailed total number of frames transmitted and received on the remote web/telnet management interface. This function allows network administrator to check the status and statistics of the IMG-2105AT via the single RS232/422/485 serial interface.

Stable Performance in Hardened Environment Design

The IMG-2105AT provides a high level of immunity against electromagnetic interference and heavy electrical surges which are usually found on plant floors or in curb-side traffic control cabinets. Its operating temperature ranging from -40 to 75 degrees C allows the IMG-2105AT to be placed in almost any difficult environment.

The IMG-2105AT is equipped with a compact IP30-rated metal case that allows wall mounting for efficient use of cabinet space. The IMG-2105AT also provides an integrated power supply source with wide-ranging voltages (9 to 48V DC / 24V AC) ideally suitable for worldwide operation with high availability applications.

Dual Power Input for High Availability Network System

The IMG-2105AT features a strong dual power input system with wide-ranging voltages (9V~48V DC / 24V AC) incorporated into customer’s automation network to enhance system reliability and uptime. In the example below, when Power Supply 1 fails to work, the hardware failover function will be activated automatically to keep powering the IMG-2105AT  via Power Supply 2 without any break of operation.

Extending Distance

The IMG-2105A is able to extend the distance of deploying serial equipment and hosts. The selectable fiber-optic cables on the basis of distance are provided. Therefore, this product will perfectly satisfy the diverse demands while providing reliable and efficient network solutions based on the distance and budgets of installation.

Serial Interface
Serial PortsIMG-2105AT
1 x DB9 male for RS232
1 x 4-Pin Terminal block for RS422 / RS485IMG-2102T
1 x DB9 male for RS232
1 x 4-Pin Terminal block for RS422 / RS485IMG-2102TS
1 x DB9 male for RS232
1 x 4-Pin Terminal block for RS422 / RS485
Serial StandardsRS232 / 4-wire RS422 or RS485 / 2-wire RS485
Baud Rate (Data Rate)50bps to 921Kbps
Data Bits5, 6, 7, 8
Stop Bit1, 1.5, 2
Parity TypeOdd, Even, None, Space, Mark
Flow ControlRTS/CTS and DTR/DSR (RS232 only)
SignalsRS232: TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
RS422: Tx+, Tx-, Rx+, Rx-, GND
4-wire RS485: Tx+, Tx-, Rx+, Rx-, GND
2-wire RS485: Data A (+), Data B (-), GND
Pin AssignmentSerial Port


4-pin Terminal Block

Operation ModeRTU Master/RTU Slave/ASCII Master/ASCII Slave
Master mode: Supports up to 32 TCP slave connection requests
Slave mode: Supports up to 32 TCP master connection requests
Ethernet Interface
Ethernet PortIMG-2105AT: 1 x SFP
IMG-2102T/ICS-2102TS: 1 x Duplex SC
ConnectorIMG-2105AT: LC
IMG-2102T/ICS-2102TS: Duplex SC
Fiber ModeIMG-2105AT: Single mode or multi-mode (may vary on SFP module)
IMG-2102T: Multi-mode
IMG-2102TS: Single mod
Transmission ModeFull duplex
DistanceIMG-2105AT: 2km to 120km (may vary on SFP module)
IMG-2102T: 2km
IMG-2102TS: 30km
50 or 62.5/125μm multi-mode fiber cable
9/125μm single-mode cableIMG-2102T: 50/125μm or 62.5/125μm multi-mode fiber cableIMG-2102TS: 9/125μm single-mode cable
ESD Protection6KV
Surge Protection2KV
InstallationDIN-rail kit and wall-mount ear
EnclosureIP 30 metal
Dimensions (W x D x H)32 x 87.8 x 135 mm
WeightIMG-2105AT: 390g
IMG-2102T: 386g
IMG-2102TS: 391g
LED IndicatorsSystem: Power 1, Power 2, Fault, SYS
SFP: Link/Active
Serial Port: Tx and Rx
Power Requirements9~48V DC / 24V AC, redundant power with reverse polarity protection
Power ConsumptionIMG-2105AT:
Full Loading
9VDC: 0.44A (3.96 watts)
12VDC: 0.33A (4 watts)
24VDC: 0.17A (4.08 watts)
48VDC: 0.1A (4.8 watts)IMG-2102T:
Full Loading
9VDC: 0.56A (5 watts)
12VDC: 0.42A (5 watts)
24VDC: 0.23A (5.5 watts)
48VDC: 0.13A (6 watts)IMG-2102TS:
Full Loading
9VDC: 0.56A (5 watts)
12VDC: 0.42A (5 watts)
24VDC: 0.23A (5.5 watts)
48VDC: 0.13A (6 watts)
ConnectorRemovable 6-pin terminal block for power input
Pin 1/2 for Power 1, Pin 3/4 for fault alarm, Pin 5/6 for Power 2
AlarmProvides one relay output for power failure
Alarm relay current carry ability: 1A @ DC 24V
Reset Button< 5 sec: System reboot > 5 sec: Factory default
Management InterfacesWeb management
Telnet Console management
Windows-based MB VCOM Utility management
SNMPv1, v2c / SNMP Trap
UNI-NMS monitoring
PLANET Smart Discovery Utility
IP VersionIPv4 and IPv6
Operation ModeRTU Master
RTU Slave
ASCII Master
Virtual COM Utility Platform SupportsWindows-based only:
Windows XP
Windows Server 2003
Windows 7
Windows Server 2008
Windows 8 (Must install the latest version of WinPcap)
Windows Server 2012 (Must install the latest version of WinPcap)
Windows 10
Fault AlarmRecord: System log / SNMP trap
SecurityAllow maximum 4 accessible IP address hosts/ranges
RFC1317 RS232-like MIB
Standards Conformances
Regulatory ComplianceFCC Part 15 Class A,
CE Certification Class A
Stability TestingIEC60068-2-32 (Free fall)
IEC60068-2-27 (Shock)
IEC60068-2-6 (Vibration)
StandardsIEEE 802.3 10BASE-T
IEEE 802.3u 100BASE-FX
RFC 791 IP
RFC 854 Telnet
RFC 1591 DNS (client only)
RFC 1908 SNMPv2c
RFC 2131 DHCP Client
RFC 2732 Format for Literal IPv6 Addresses in URL’s
RFC 3315 DHCPv6 Client
RFC 3513 IPv6 Addressing Architecture
RFC 3596 DNSv6
RFC 4443 ICMPv6
EIA/TIA RS232/422/485
Operating Temperature-40 ~ 75 degrees C
Storage Temperature-40 ~ 85 degrees C
Humidity5 ~ 95% (non-condensing)

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    IMG-2102T Datasheet


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