We Provide
– Isolation Surge ESD for Serial RS232/ RS422/ RS485
– USB 1.1/ USB 2.0 Ethernet interface
– Isolation supports from 1.5KV 2KV 3KV 5KV
– Surge supports 600W ESD 15KV
Featured Products

Isolation RS485 addon card, converter
– RS485 transceiver Isolation industrial automation, Iiot, Iot
– 2-wire 4-wire RS485 specification
All Products – Isolation / Surge / ESD
1 port High Speed RS232 PCI Express PCIe Card
Expands 1 com ports for your system
High Speed Baud Rate up to 921.6Kbps
Design to meet PCI Express 2.0 Gen 1 compliant
Supports PCI Express x1, x2, x4, x8, and x16 Lane
Built-in 15KV ESD protection
Supports Industrial Specification
256 byte FIFOs
Supports 5V/12V Selectable
Supports Microsoft Windows, Linux, and QNX drivers
2 port High Speed RS232 PCI Express PCIe Card
Expands 2 com ports for your system
High Speed Baud Rate up to 921.6Kbps
Design to meet PCI Express 2.0 Gen 1 compliant
Supports PCI Express x1, x2, x4, x8, and x16 Lane
Built-in 15KV ESD protection
Supports Industrial Specification
256 byte FIFOs
Supports 5V/12V Selectable
Supports Microsoft Windows, Linux, and QNX drivers
2 port High Speed RS422/485 PCI Card 2KV Isolation protection
Expands 2 com ports for your system
High Speed Baud Rate up to 921.6Kbps
Compatible with 3.3V/5V PCI and PCI-x slot
Max 10 device connectivity for 4 Wire RS-485(RS-422 Multi-Drop) mode
Max 32 device connectivity for 2 Wire RS-485 mode
Built-in 15KV ESD protection
2KV Optical Isolation
600W Surge protection
Supports Industrial Specification
256 byte FIFOs integrated UART
Supports Microsoft Windows, Linux, and DOS drivers
2 port High Speed RS422/485 PCI Express PCIe Card
Expands 2 com ports RS422 RS485 for your system
High Speed Baud Rate up to 921.6Kbps
Design to meet PCI Express 2.0 Gen 1 compliant
Supports PCI Express x1, x2, x4, x8, and x16 Lane
Max 10 device connectivity for 4 Wire RS-485 ( RS-422 Multi-Drop) mode
Max 32 device connectivity for 2 Wire RS-485 mode
Built-in 15KV ESD protection
600W Surge protection
Supports Industrial Specification
256 byte FIFOs
Supports Microsoft Windows 10, Linux, and QNX drivers
2 port High Speed Serial RS422/485 PCI Express PCIe Card Isolation
Expands 2 com ports RS422 RS485 for your system
High Speed Baud Rate up to 921.6Kbps
Design to meet PCI Express 2.0 Gen 1 compliant
Supports PCI Express x1, x2, x4, x8, and x16 Lane
Max 10 device connectivity for 4 Wire RS-485(RS-422 Multi-Drop) mode
Max 32 device connectivity for 2 Wire RS-485 mode
Built-in 15KV ESD protection
2KV Optical Isolation
600W Surge protection
Supports Industrial Specification
256 byte FIFOs
Supports Microsoft Windows 10 , Linux, and QNX drivers
2 port RS-232 M.2 card 2.5KV Isolation Protection
Expands 2 com ports RS232 for your system
Baud Rate up to 460Kbps
Design to meet M.2(NGFF) E key(PCIe base) compliant
Built-in 15KV ESD protection
Supports Industrial Specification
256 byte FIFOs
Supports 2.5KV Isolation protection
Supports Microsoft Windows 10, Linux, and QNX drivers
2 port RS232 Mini PCI Express mPCIe card 2.5KV Isolation Protection
Expands 2 com ports RS232 for your system
Baud Rate up to 460Kbps
Design to meet PCI Express 2.0 Gen 1 compliant
Built-in 15KV ESD protection
Supports Industrial Specification
256 byte FIFOs
Supports 2.5KV Isolation protection
Supports Microsoft Windows 10, Linux, and QNX drivers
2 port RS422 RS485 com port serial card PCI
Expands 2 com ports for your system
High Speed Baud Rate up to 921.6Kbps
Compatible with 3.3V/5V PCI and PCI-x slot
Max 10 device connectivity for 4 Wire RS-485(RS-422 Multi-Drop) mode
Max 32 device connectivity for 2 Wire RS-485 mode
Built-in 15KV ESD protection
600W Surge protection
Supports Industrial Specification
256 byte FIFOs integrated UART
Supports Microsoft Windows, Linux, and DOS drivers
2 port RS422/485 M.2(NGFF) card + 2.5KV Isolation Protection
Expands 2 com ports RS422 RS485 for your system
Baud Rate up to 460Kbps
Design to meet M.2 (NGFF) E key compliant
Built-in 15KV ESD protection
Supports Industrial Specification
256 byte FIFOs
Supports 2.5KV Isolation protection
Supports Microsoft Windows 10, Linux, and QNX drivers
2 port RS422/485 Mini PCI Express mPCIe card 2.5KV Isolation Protection
Expands 2 com ports RS422 RS485 for your system
Baud Rate up to 460Kbps
Design to meet PCI Express 2.0 Gen 1 compliant
Built-in 15KV ESD protection
Supports Industrial Specification
256 byte FIFOs
Supports 2.5KV Isolation protection
Supports Microsoft Windows 10, Linux, and QNX drivers
2 port Serial RS232 PCI Express PCIe card 2.5KV Isolation Protection
Expands 2 com ports for your system
Baud Rate up to 460Kbps
Design to meet PCI Express 2.0 Gen 1 compliant
Built-in 15KV ESD protection
Supports Industrial Specification
256 byte FIFOs
Supports 2.5KV Isolation protection
Supports Microsoft Windows, Linux, and QNX drivers
4 port High Speed RS422/485 PCI Express PCIe Card
Expands 4 com ports for your system
High Speed Baud Rate up to 921.6Kbps
Design to meet PCI Express 2.0 Gen 1 compliant
Supports PCI Express x1, x2, x4, x8, and x16 Lane
Max 10 device connectivity for 4 Wire RS-485(RS-422 Multi-Drop) mode
Max 32 device connectivity for 2 Wire RS-485 mode
Built-in 15KV ESD protection
600W Surge protection
Supports Industrial Specification
256 byte FIFOs
Supports Microsoft Windows, Linux, and QNX drivers
4 port High Speed RS422/485 PCI Express PCIe Card 1.5KV isolation protection
Expands 4 com RS422 RS485 ports for your system
High Speed Baud Rate up to 921.6Kbps
Design to meet PCI Express 2.0 Gen 1 compliant
Supports PCI Express x1, x2, x4, x8, and x16 Lane
Max 10 device connectivity for 4 Wire RS-485 ( RS-422 Multi-Drop) mode
Max 32 device connectivity for 2 Wire RS-485 mode
Built-in 15KV ESD protection
1.5KV Optical Isolation
600W Surge protection
Supports Industrial Specification
256 byte FIFOs
Supports Microsoft Windows 10 , Linux, and QNX drivers
4 port RS422 RS485 PCI Card 1.5KV Isolation
Product Description: 4 port High Speed Serial RS-232/422/485 M.2 Card
Features and Benefit
Expands 4 com ports for your system
High Speed Baud Rate up to 921.6Kbps
Design to meet PCI Express 2.0 Gen 1 compliant
Supports M.2 M key slot
Built-in 15KV ESD protection
Supports Industrial Specification
256 byte FIFOs
Supports Microsoft Windows, Linux, and QNX drivers
8 port High Speed RS422/485 PCI Express PCIe Card
Expands 8 com ports RS422/485 for your system
High Speed Baud Rate up to 921.6Kbps
Design to meet PCI Express 2.0 Gen 1 compliant
Supports PCI Express x1, x2, x4, x8, and x16 Lane
Max 10 device connectivity for 4 Wire RS-485 ( RS-422 Multi-Drop) mode
Max 32 device connectivity for 2 Wire RS-485 mode
Built-in 15KV ESD protection
600W Surge protection
Supports Industrial Specification
256 byte FIFOs
Supports Microsoft Windows 10, Linux, and QNX drivers
8 port Internal RS232 RS422 RS485 M.2 Isolation Surge
Item Number: SERM2-T3800iS
Product Description: 8 port High Speed Serial RS-232/422/485 M.2 B/M key Card supports 3KV Isolation 4KV Surge protection
Diarts designs 8 port RS232 RS422 RS485 M.2 Card, it allows embedded PC to add 8 Serial ports for system needs. M.2 B key or M key, that are newest slot the Embedded PC. That we design 8 port Serial from PCIe to M.2.
Features and Benefit
Expands 8 com ports for your system
High Speed Baud Rate up to 921.6Kbps
Design to meet PCI Express 2.0 Gen 1 compliant
Supports PCI Express x1, x2, x4, x8, and x16 Lane
3KV Isolation protection
4KV Surge Protection
Built-in 15KV ESD protection
Supports Industrial Specification
256 byte FIFOs
Supports Microsoft Windows, Linux, and QNX drivers
Supports 2280 / 2260
Specification
Hardware
Communication controller: 16C550 UART Compatible register Set
Bus: B or M key x 1
Serial Interface
Number of ports: 8 ports
Serial Standard: RS-232/422/485
IRQ and I/O Address: Assigned by System
Serial Line Protection
Isolation: 3KV Isolation protect
Surge: 4KV protection
ESD Protection: 15KV ESD Protection for all signals
Performance
Baud rate: up to 921.6 Kbps
FIFOs: 256 byte
Serial Communication Parameters
Data Bits: 5, 6, 7, 8
Stop Bits: 1, 1.5, 2
Parity: None, Even, Odd, Space, Mark
Serial Signals
RS-232: TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND. RI
RS-422: TxD+, TxD- RxD+, RxD-, GND
2 Wire RS-485: Data+, Data-, GND
4 Wire RS-485: TxD+, TxD-, RxD+, RxD-, GND
Driver Support
Windows: XP, 2003, Vista, 2008, Win 7/8.1/10
Linux: 2.6
QNX: 6.0
Environmental Limits
Operating Temperature: -30 ~ 75℃
Storage Temperature: -40 ~ 85℃
Ambient Relative Humidity: 5 ~ 95% Non-Condensing
Standards and Certifications
CE and FCC supports
Product Production
Production: Made in Taiwan
Product Location: Taipei, Taiwan
Package Content
8 port M.2 B/M Key Card x 1
1 port RS232/422/485 3KV Isolation 4KV Surge 15KV ESD Adapter x8
Cable x 4
Quick Instill Guide x 1
Driver CD x 1
8 port RS232 RS422 RS485 Mini PCIe Isolation Surge
Item Number: SERMPE-T3800i
Product Description: 8 port High Speed Serial RS-232/422/485 Mini PCIe Card supports 3KV Isolation 4KV Surge protection
Features and Benefit
Expands 8 com ports for your system
High Speed Baud Rate up to 921.6Kbps
Design to meet PCI Express 2.0 Gen 1 compliant
Supports PCI Express x1, x2, x4, x8, and x16 Lane
3KV Isolation protection
4KV Surge Protection
Built-in 15KV ESD protection
Supports Industrial Specification
256 byte FIFOs
Supports Microsoft Windows, Linux, and QNX drivers
Supports Mini PCIe Full size
Specification
Hardware
Communication controller: 16C550 UART Compatible register Set
Bus: Mini PCIe slot
Serial Interface
Number of ports: 8 ports
Serial Standard: RS-232/422/485
IRQ and I/O Address: Assigned by System
Serial Line Protection
Isolation: 3KV Isolation protect
Surge: 4KV protection
ESD Protection: 15KV ESD Protection for all signals
Performance
Baud rate: up to 921.6 Kbps
FIFOs: 256 byte
Serial Communication Parameters
Data Bits: 5, 6, 7, 8
Stop Bits: 1, 1.5, 2
Parity: None, Even, Odd, Space, Mark
Serial Signals
RS-232: TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND. RI
RS-422: TxD+, TxD- RxD+, RxD-, GND
2 Wire RS-485: Data+, Data-, GND
4 Wire RS-485: TxD+, TxD-, RxD+, RxD-, GND
Driver Support
Windows: XP, 2003, Vista, 2008, Win 7/8.1/10
Linux: 2.6
QNX: 6.0
Environmental Limits
Operating Temperature: -30 ~ 75℃
Storage Temperature: -40 ~ 85℃
Ambient Relative Humidity: 5 ~ 95% Non-Condensing
Standards and Certifications
CE and FCC supports
Product Production
Production: Made in Taiwan
Product Location: Taipei, Taiwan
Package Content
8 port Mini PCIe Card x 1
1 port RS232/422/485 3KV Isolation 4KV Surge 15KV ESD Adapter x 8
Quick Instill Guide x 1
Driver CD x 1
8 port RS232 RS422 RS485 Mini PCIe Isolation Surge
Item Number: SERMPE-T3800i
Product Description: 8 port High Speed Serial RS-232/422/485 Mini PCIe Card supports 3KV Isolation 4KV Surge protection
Features and Benefit
Expands 8 com ports for your system
High Speed Baud Rate up to 921.6Kbps
Design to meet PCI Express 2.0 Gen 1 compliant
Supports PCI Express x1, x2, x4, x8, and x16 Lane
3KV Isolation protection
4KV Surge Protection
Built-in 15KV ESD protection
Supports Industrial Specification
256 byte FIFOs
Supports Microsoft Windows, Linux, and QNX drivers
Supports Mini PCIe Full size
Specification
Hardware
Communication controller: 16C550 UART Compatible register Set
Bus: Mini PCIe slot
Serial Interface
Number of ports: 8 ports
Serial Standard: RS-232/422/485
IRQ and I/O Address: Assigned by System
Serial Line Protection
Isolation: 3KV Isolation protect
Surge: 4KV protection
ESD Protection: 15KV ESD Protection for all signals
Performance
Baud rate: up to 921.6 Kbps
FIFOs: 256 byte
Serial Communication Parameters
Data Bits: 5, 6, 7, 8
Stop Bits: 1, 1.5, 2
Parity: None, Even, Odd, Space, Mark
Serial Signals
RS-232: TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND. RI
RS-422: TxD+, TxD- RxD+, RxD-, GND
2 Wire RS-485: Data+, Data-, GND
4 Wire RS-485: TxD+, TxD-, RxD+, RxD-, GND
Driver Support
Windows: XP, 2003, Vista, 2008, Win 7/8.1/10
Linux: 2.6
QNX: 6.0
Environmental Limits
Operating Temperature: -30 ~ 75℃
Storage Temperature: -40 ~ 85℃
Ambient Relative Humidity: 5 ~ 95% Non-Condensing
Standards and Certifications
CE and FCC supports
Product Production
Production: Made in Taiwan
Product Location: Taipei, Taiwan
Package Content
8 port Mini PCIe Card x 1
1 port RS232/422/485 3KV Isolation 4KV Surge 15KV ESD Adapter x 8
Quick Instill Guide x 1
Driver CD x 1
Embedded 16 port RS232 RS422 RS485 PCIe Isolation Surge
Embedded Internal Serial Ports
Expands 16 com ports for your system
High Speed Baud Rate up to 921.6Kbps
Design to meet PCI Express 2.0 Gen 1 compliant
Supports PCI Express x1, x2, x4, x8, and x16 Lane
3KV Isolation protection
4KV Surge Protection
Built-in 15KV ESD protection
Supports Industrial Specification
256 byte FIFOs
Supports Microsoft Windows, Linux, and QNX drivers
Fortifying Your Serial Communication: The 8-Port RS232 M.2 B/M Key 5KV Isolation Protection Card
The 8-Port RS232 M.2 5KV Isolation Card provides robust serial communication with high-level surge protection for demanding industrial environments
FTDI USB to 1 port RS232 5KV Isolation Adapter
Expands 1 RS-232 com ports for your system
High Speed Baud Rate up to 921.6Kbps
USB 1.0/1.1 compliant, USB 2.0 Full Speed compatible
12Mbps USB Data Rate
Transmit and Receive LED supports
5KV Optical Isolation Protection
Built-in 15KV ESD protection for all RS-232 port
Supports Industrial Specification
TX buffer 128 bytes and RX buffer 256 bytes
Supports Microsoft Windows, Linux, and MAC drivers
Robust and Reliable Serial Communication: The 8-Port RS422/RS485 M.2 B/M Key 3KV Isolation Protection Card
This 8-Port RS422/RS485 M.2 card provides 3KV isolation, ensuring reliable data transfer for long-distance and multi-drop serial connections in demanding industrial settings.
RS232 to RS422 RS485 Addressable 3KV Isolation
Transmission speed up to 115.2 kbps
Built-in microprocessor
Watchdog timer function included
All communication setups stored in EEPROM
Power and data flow indicator for troubleshooting
Built-in Terminator 120 ohm for DIP Switch Setting
Addressable and non-addressable mode configurable
Max 10 Device connectivity for 4 Wire RS-485(RS-422 Multi-Drop) Mode
Max 32 Device Connectivity for RS-485 Mode
Communication status can be monitored through LED
3KV Optical Isolation Protection
600W Surge Protection
Built-in 15KV ESD protection for all Serial Port and RS-422/485 Signals Protection
Supports Industrial Specification
RS232 to RS422 RS485 Converter 5KV Isolation
Features and Benefit
High Speed Baud Rate up to 921.6Kbps
Built-in Terminator 120 ohm for DIP Switch Setting
Max 10 Device connectivity for 4 Wire RS-485(RS-422 Multi-Drop) Mode
Max 32 Device Connectivity for RS-485 Mode
Communication status can be monitored through LED
5KV Optical Isolation Protection
600W Surge Protection
Built-in 15KV ESD protection for all Serial Port and RS-422/485 Signals Protection
Supports Industrial Specification
No Driver Needs
Uncompromising Serial Communication: The 8-Port RS422/RS485 M.2 B/M Key 5KV Isolation Protection Card
8-Port RS422/RS485 M.2 card with 5KV isolation for robust, long-distance, multi-drop serial communication.
USB to 1 port RS422 RS485 3KV Optical Isolation
Expands 1 RS-422/485 com ports for your system
High Speed Baud Rate up to 921.6Kbps
USB 1.0/1.1 compliant, USB 2.0 Full Speed compatible
12Mbps USB Data Rate
Built-in Terminator 120 ohm for DIP Switch Setting
32 Device Connectivity for RS-485 Max.
Transmit and Receive LED supports
3KV Optical Isolation Protection
600W Surge Protection
Built-in 15KV ESD protection for all Serial Port and RS-422/485 Signals Protection
Supports Industrial Specification
TX buffer 128 bytes and RX buffer 256 bytes
Supports Microsoft Windows, Linux, and MAC drivers
USB to 2 port RS232 RS422 RS485 2 port 3KV Isolation
Expands 2 RS-232 or RS422 or RS485 and 2 port RS422 or RS485 with 3KV Isolation 600W Surge com ports for your system
High Speed Baud Rate up to 921.6Kbps
USB 1.0/1.1 compliant, USB 2.0 Full Speed compatible
480 Mbps USB Data Rate
Transmit and Receive LED supports
Built-in 15KV ESD protection
3KV Optical Isolation Protection
600W Surge Protection
Supports Industrial Specification
TX buffer 2K bytes and RX buffer 2K bytes per Channel
Supports Microsoft Windows, Linux, and MAC drivers
RS422/485 Signal 600W Surge Protection
Max 10 Device Connectivity for RS422 Multi-Drop Mode
Max 32 devices connectivity for RS485 mode
Easy to use setting Dip Switch for selecting RS232/422/485 mode
Automatic toggling by hardware RS485 2W and RS485 4W(RS422 Multi-Drop mode)
USB to 2 port RS422 RS485 Adapter 3KV Isolation
Expands 2 port RS-422/485 com ports for your system
High Speed Baud Rate up to 921.6Kbps
USB 1.0/1.1 compliant, USB 2.0 Full Speed compatible
12Mbps USB Data Rate
Built-in Terminator 120 ohm for DIP Switch Setting
32 Device Connectivity for RS-485 Max.
Transmit and Receive LED supports
3KV Optical Isolation Protection
600W Surge Protection
TX buffer 4K bytes and RX buffer 4K bytes per Channel
Supports Microsoft Windows, Linux, and MAC drivers
USB to 4 port RS422 RS485 3KV Isolation
Expands 4 port RS-422/485 com ports for your system
High Speed Baud Rate up to 921.6Kbps
USB 1.0/1.1 compliant, USB 2.0 Full Speed compatible
12Mbps USB Data Rate
Built-in Terminator 120 ohm for DIP Switch Setting
32 Device Connectivity for RS-485 Max.
Transmit and Receive LED supports
3KV Optical Isolation Protection
600W Surge Protection
Built-in 15KV ESD protection for all Serial Port and RS-422/485 Signals Protection
Supports Industrial Specification
TX buffer 2K bytes and RX buffer 2K bytes per Channel
Supports Microsoft Windows, Linux, and MAC drivers
USB to USB A type 5KV Optical Isolation Adapter
USB 1.0/1.1 compliant, USB 2.0 Full Speed compatible
12Mbps USB Data Rate
Transmit and Receive LED supports
5KV Optical Isolation Protection
Power Input support 10V – 30V Power Adapter
Supports Industrial Specification
Supports No Driver needs for all OS system
USB2.0 to USB A 2.0 5KV Isolation Adapter
USB 1.0/1.1 compliant, but USB 1.0/1.1 does not support hot swap
USB 2.0 High Speed compatible
5KV Isolation protection PCs or Devices
Communication status can be monitored through LED
Supports Industrial Specification
No Driver Needs
Wall Mount Adapter for 35mm Din Rail
Supports 35mm Din Rail up to 55mm wide
Physical Characteristics
Housing: stainless steel
Product Production
Production: Made in Taiwan
Product Location: Taipei, Taiwan
Wireless 4port RS422 RS485 Isolation Over IP
Wireless 802.11 b/g
Gateway IP Address
Serial RS-422/485 Interface 4 port
3KV Optical Isolation
600W Surge protection
10/100 Mbps Ethernet Interface
Transfer Rate up to 921Kbps
Two Power Supplies way, both support 10 – 48V
Supports Mode: VSP Com, TCP Server, TCP Client, UDP, Paired Mode, HTTP, DHCP, ICMP(Ping), Static IP, and ARP Supported
Spread Spectrum Technology: DSSS, OFDM, DBPSK, DQPSK, CCK, 16-QAM, 64-QAM
Tx Power 11b: Maximum 15dBm +/-1.5 dBm
Tx Power 11g: Maximum 12dBm +/- 1.5dBm
Transmission distance: Up to 200 meters ( @12 Mbps, in open areas )
Antenna Connector: SMD Coaxial Connector , 2 dBi Antenna
Supports Industrial Specification




























