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Manufacturer documented GLOBAL

Identity

category gateways
manufacturer EBYTE
manufacturer_part_number NB144S
model NB144S
mpn NB144S
product_family NB
product_status active
region GLOBAL
series NB
variant —

Electrical

galvanic_isolation not stated
NB144S official product page (cdebyte.com) — isolation is not printed on the NB144S product page
input_voltage DC 8~28V (Phoenix terminal or DC jack)
NB144S official product page (cdebyte.com) — port/pin block 'Power input'
transparent_transmission two-way transparent data transmission from 4-way serial port to Ethernet port
NB144S official product page (cdebyte.com) — product introduction paragraph

Physical / mechanical

dimensions 198 x 109 x 26.5 mm (LxWxH)
NB144S official product page (cdebyte.com) — row 'Product Size'
enclosure_treatment three-proof coating: Anti-Fungal, Anti-Humidity, Anti-Salt Spray
NB144S official product page (cdebyte.com) — product introduction paragraph
weight 530 g +/- 5 g
NB144S official product page (cdebyte.com) — row 'Product Weight'

Installation

mounting Positioning hole installation
NB144S official product page (cdebyte.com) — row 'Installation Method'

Environment

operating_humidity 5% ~ 95% RH (no condensation)
NB144S official product page (cdebyte.com) — row 'Operating Humidity'
operating_temperature -40 ~ +85 degC
NB144S official product page (cdebyte.com) — row 'Operating Temperature'

Interfaces & connectors

device_type 4-port serial device server / Modbus gateway (PoE)
ethernet_ports 1 (standard RJ45)
NB144S official product page (cdebyte.com) — port block 'Ethernet: Standard RJ45 interface'
ethernet_rate not stated
NB144S official product page (cdebyte.com) — no 10M/100M figure is printed on the NB144S product page
home_assistant_modbus_tcp_suitable True
home_assistant_suitability_basis The official product introduction states verbatim: 'The device has ModBus gateway function, supports Modbus TCP to RTU, and supports auto polling.' That is a documented Modbus TCP server answering from Modbus RTU devices on the serial side, which is what a standard Modbus TCP client such as Home Assistant's modbus integration needs. Printed in the product introduction paragraph of the NB144S product page. Mode names are not published.
modbus_gateway ModBus gateway function, supports Modbus TCP to RTU, supports auto polling
NB144S official product page (cdebyte.com) — product introduction paragraph, verbatim
poe PoE supported (PoE standard/class not stated)
NB144S official product page (cdebyte.com) — product introduction - 'supports POE power supply'; port block 'PoE support: Yes'
rs232 true
NB144S official product page (cdebyte.com) — row 'Interface Signal'
rs422 true
NB144S official product page (cdebyte.com) — row 'Interface Signal'
rs485 true
NB144S official product page (cdebyte.com) — row 'Interface Signal'
serial_baud_rate 2400 ~ 115200 bps (default 115200)
NB144S official product page (cdebyte.com) — row 'Baud Rate'
serial_ports 4
NB144S official product page (cdebyte.com) — product introduction - '4-way serial port server'; Pin/port block 'Serial ports: 4-way'
serial_standard RS485, RS422, RS232
NB144S official product page (cdebyte.com) — row 'Interface Signal' - 'RS485/RS422/RS232'; port block notes RS232 on DB9 connectors and RS422/RS485 on Phoenix terminals

Документи

manufacturer-document NB144S official product page (cdebyte.com)
product-page NB144S official product page (cdebyte.com)