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Serial Connectivity

Connection Boxes Series

OPT 8B

8 Port Connection Box, DB25M, 150CM Cable

£76.00

Please call us for stock information.

The stock was last updated at 12:52 pm Tuesday, 16 September, 2025. Please contact us for lead times if needed.

Available on back-order

OPT 8B

Series Description

Introduction

Moxa’s 8-port RS-232 connection boxes provide 8 common connection ports, including DB9, 8-pin RJ45, and DB25, for connecting your serial devices to a serial board.

Pin Assignments

Need Support?

We understand that it can be difficult to find the right products for your needs. That’s why our dedicated customer support team is available to assist you in any way possible. Whether you need help selecting the best product for your application or more information on a particular device, our knowledgeable staff is here to provide you with the answers you need. Contact us today for more information about how we can help you get the products and support you need!

Variations

Connection Boxes Series

The OPT 8B is part of a wider series. A series refers to a collection of related products or components designed to work together seamlessly, typically within a specific industry or application. These series often share similar features and functionalities, ensuring compatibility and ease of integration for users.

Other products in this series

Moxa -

OPT8-RJ45

8 Port Connection Box, RJ45, Matel Case

Please call us for stock information.

£74.00

Available on back-order

Moxa -

OPT8-M9

8 Port Connection Box, DB9M, Matel Case

Please call us for stock information.

£83.00

Available on back-order

Moxa -

OPT8-M9+

8 Port Connection Box, DB9M, Matel Case

Please call us for stock information.

£98.00

Available on back-order

Moxa -

OPT 8S

8 Port Connection Box, DB25F, w/ Surge

Please call us for stock information.

£163.00

Available on back-order

Moxa -

OPT 8S+

8 Port Connection Box, DB25F, w/ Surge

Please call us for stock information.

£163.00

Available on back-order

Moxa -

OPT 8A

8 Port Connection Box, DB25F, 150CM Cable

Please call us for stock information.

£76.00

Available on back-order

Moxa -

OPT 8B+

8 Port Connection Box, DB25M, 150CM Cable

Please call us for stock information.

£80.00

Available on back-order

Accessories

There are no listed accessories for this product

If you are looking for accessories for this product, please contact us and our sales team will advise you on what products work really well when using any product from the Connection Boxes Series.

Moxa -

AIG-302-T-AZU-LX

2-port Modbus RTU/ASCII/TCP to MQTT/Azure cloud-ready gateway with Arm® Cortex™-A7 dual-core 1GHz processor, Azure IoT Edge software, -40 to 70°C operating temperature

Please call us for stock information.

£757.00

Available on back-order

ATOP -

BIG9000I-2MAC

Intelligent Unidirectional Gateway with switch function and MACsec

Please call us for stock information.

£9,243.00

Available on back-order

Moxa -

EDS-408A

Entry-level managed Ethernet switch with 8 10/100BaseT(X) ports, -10 to 60°C operating temperature

26 products currently in stock.

£411.00

26 in stock (can be backordered)

Moxa -

EDS-408A-EIP

Entry-level managed Ethernet switch with 8 10/100BaseT(X) ports, -10 to 60°C operating temperature, EtherNet/IP enabled

Please call us for stock information.

£411.00

Available on back-order

Moxa -

EDS-408A-MM-SC

Entry-level managed Ethernet switch with 6 10/100BaseT(X) ports, and 2 100BaseFX multi-mode ports with SC connectors, -10 to 60°C operating temperature

29 products currently in stock.

£598.00

29 in stock (can be backordered)

Moxa -

EDS-408A-MM-ST

Entry-level managed Ethernet switch with 6 10/100BaseT(X) ports, and 2 100BaseFX multi-mode ports with ST connectors, -10 to 60°C operating temperature

2 products currently in stock.

£598.00

2 in stock (can be backordered)

Moxa -

EDS-408A-PN

Entry-level managed Ethernet switch with 8 10/100BaseT(X) ports, -10 to 60°C operating temperature, PROFINET enabled

Please call us for stock information.

£411.00

Available on back-order

Moxa -

EDS-408A-SS-SC

Entry-level managed Ethernet switch with 6 10/100BaseT(X) ports, and 2 100BaseFX single-mode ports with SC connectors, -10 to 60°C operating temperature

Please call us for stock information.

£844.00

Available on back-order

Moxa -

EDS-408A-EIP-T

Entry-level managed Ethernet switch with 8 10/100BaseT(X) ports, -40 to 75°C operating temperature, EtherNet/IP enabled

Please call us for stock information.

£564.00

Available on back-order

Moxa -

EDS-408A-MM-SC-T

Entry-level managed Ethernet switch with 6 10/100BaseT(X) ports, and 2 100BaseFX multi-mode ports with SC connectors, -40 to 75°C operating temperature

2 products currently in stock.

£751.00

2 in stock (can be backordered)

Specification

Product Specification

Brand

Moxa

Moxa is a leading provider of edge connectivity, industrial computing, and network infrastructure solutions for enabling connectivity for the Industrial Internet of Things (IIoT). With over 35 years of experience, they help industrial enterprises overcome roadblocks and achieve operational resilience through purpose-built OT networking and cybersecurity. They are dedicated to changing the world through the power of connectivity, driving industrial transformation.

Documents

Manuals & Datasheets

Supported Documents & Firmware Last Updated: April 1, 2025

Name	Type	Version	Release Date
Datasheet for Connection Boxes 2.0 MB	Datasheet	v1.1	Dec 25, 2019 Dec 25, 2019

Series Description

Introduction

Moxa’s 8-port RS-232 connection boxes provide 8 common connection ports, including DB9, 8-pin RJ45, and DB25, for connecting your serial devices to a serial board.

Pin Assignments

Need Support?

We understand that it can be difficult to find the right products for your needs. That’s why our dedicated customer support team is available to assist you in any way possible. Whether you need help selecting the best product for your application or more information on a particular device, our knowledgeable staff is here to provide you with the answers you need. Contact us today for more information about how we can help you get the products and support you need!

Connection Boxes Series

The OPT 8B is part of a wider series. A series refers to a collection of related products or components designed to work together seamlessly, typically within a specific industry or application. These series often share similar features and functionalities, ensuring compatibility and ease of integration for users.

Other products in this series

There are no listed accessories for this product

If you are looking for accessories for this product, please contact us and our sales team will advise you on what products work really well when using any product from the Connection Boxes Series.

Moxa -

AIG-302-T-AZU-LX

2-port Modbus RTU/ASCII/TCP to MQTT/Azure cloud-ready gateway with Arm® Cortex™-A7 dual-core 1GHz processor, Azure IoT Edge software, -40 to 70°C operating temperature

Please call us for stock information.

£757.00

Available on back-order

ATOP -

BIG9000I-2MAC

Intelligent Unidirectional Gateway with switch function and MACsec

Please call us for stock information.

£9,243.00

Available on back-order

Moxa -

EDS-408A

Entry-level managed Ethernet switch with 8 10/100BaseT(X) ports, -10 to 60°C operating temperature

26 products currently in stock.

£411.00

26 in stock (can be backordered)

Moxa -

EDS-408A-EIP

Entry-level managed Ethernet switch with 8 10/100BaseT(X) ports, -10 to 60°C operating temperature, EtherNet/IP enabled

Please call us for stock information.

£411.00

Available on back-order

Moxa -

EDS-408A-MM-SC

Entry-level managed Ethernet switch with 6 10/100BaseT(X) ports, and 2 100BaseFX multi-mode ports with SC connectors, -10 to 60°C operating temperature

29 products currently in stock.

£598.00

29 in stock (can be backordered)

Moxa -

EDS-408A-MM-ST

Entry-level managed Ethernet switch with 6 10/100BaseT(X) ports, and 2 100BaseFX multi-mode ports with ST connectors, -10 to 60°C operating temperature

2 products currently in stock.

£598.00

2 in stock (can be backordered)

Moxa -

EDS-408A-PN

Entry-level managed Ethernet switch with 8 10/100BaseT(X) ports, -10 to 60°C operating temperature, PROFINET enabled

Please call us for stock information.

£411.00

Available on back-order

Moxa -

EDS-408A-SS-SC

Entry-level managed Ethernet switch with 6 10/100BaseT(X) ports, and 2 100BaseFX single-mode ports with SC connectors, -10 to 60°C operating temperature

Please call us for stock information.

£844.00

Available on back-order

Moxa -

EDS-408A-EIP-T

Entry-level managed Ethernet switch with 8 10/100BaseT(X) ports, -40 to 75°C operating temperature, EtherNet/IP enabled

Please call us for stock information.

£564.00

Available on back-order

Moxa -

EDS-408A-MM-SC-T

Entry-level managed Ethernet switch with 6 10/100BaseT(X) ports, and 2 100BaseFX multi-mode ports with SC connectors, -40 to 75°C operating temperature

2 products currently in stock.

£751.00

2 in stock (can be backordered)

Product Specification

Additional information

Weight	0.0500 kg
Board-side Connector	DB62(male) x 1
LED Indicators	TxD, RxD indicators for each device-side port
Baudrate	50 bps to 921.6 kbps
Dimensions	247 x 108 x 35 mm (9.72 x 4.25 x 1.38 in)
Warranty Period	1 year
Details	See www.moxa.com/warranty

Moxa

Moxa is a leading provider of edge connectivity, industrial computing, and network infrastructure solutions for enabling connectivity for the Industrial Internet of Things (IIoT). With over 35 years of experience, they help industrial enterprises overcome roadblocks and achieve operational resilience through purpose-built OT networking and cybersecurity. They are dedicated to changing the world through the power of connectivity, driving industrial transformation.

Manuals & Datasheets

Supported Documents & Firmware Last Updated: April 1, 2025

Name	Type	Version	Release Date
Datasheet for Connection Boxes 2.0 MB	Datasheet	v1.1	Dec 25, 2019 Dec 25, 2019