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EBYTE NB183
Manufacturer documented GLOBAL
Identity
| category | gateways |
| manufacturer | EBYTE |
| manufacturer_part_number | NB183 |
| model | NB183 |
| mpn | NB183 |
| product_family | NB |
| product_status | active |
| region | GLOBAL |
| series | NB |
| variant | — |
Electrical
| galvanic_isolation |
RS485 channels support isolation (channels 1-4 and 5-8: 'RS485, 3.81mm phoenix terminal, support isolation'); isolation voltage not stated
NB183 official product page, numbered specification table (cdebyte.com) — channel/interface block
|
| input_voltage |
DC 8~28V (crimp terminal or DC female connector)
NB183 official product page, numbered specification table (cdebyte.com) — Pin Definition table, power rows
|
| working_modes |
TCP Server, TCP Client, UDP Server, UDP Client, HTTP Client, MQTT Client (default TCP Server)
NB183 official product page, numbered specification table (cdebyte.com) — row 6 'Operating mode'
|
Physical / mechanical
| dimensions |
198*109*26.5mm
NB183 official product page, numbered specification table (cdebyte.com) — row 2 'Size'
|
| enclosure_treatment |
three-proof coating: Anti-Fungal, Anti-Humidity, Anti-Salt Spray
NB183 official product page, numbered specification table (cdebyte.com) — product introduction paragraph
|
| weight |
518 g +/- 5 g
NB183 official product page, numbered specification table (cdebyte.com) — row 5 'Weight'
|
Installation
| mounting |
Positioning hole installation
NB183 official product page, numbered specification table (cdebyte.com) — row 4 'Installation method'
|
Environment
| operating_temperature |
-40 to +85 degC, 5% to 95%RH (non-condensing)
NB183 official product page, numbered specification table (cdebyte.com) — row 11 'Working temperature and humidity'
|
| storage_temperature |
-40 ~ +105 degC, 5% ~ 95%RH (no condensation)
NB183 official product page, numbered specification table (cdebyte.com) — row 12 'Storage temperature and humidity'
|
Interfaces & connectors
| device_type | 8-port serial device server / Modbus gateway |
| ethernet_ports |
1 (RJ45)
NB183 official product page, numbered specification table (cdebyte.com) — row 1 'Interface signal'
|
| ethernet_rate |
not stated
NB183 official product page, numbered specification table (cdebyte.com) — no 10M/100M figure is printed on the NB183 product page
|
| home_assistant_modbus_tcp_suitable | False |
| home_assistant_suitability_basis | NOT ESTABLISHED. The only Modbus statement on the NB183 page is the series-level sentence 'can realize ... Modbus protocol conversion', which does not say the device answers a Modbus TCP client from Modbus RTU slaves, and no Modbus mode is named. Unlike NB124S/NB144S, the NB183 page does not print 'Modbus TCP to RTU'. Do not carry the sibling models' wording across. |
| modbus_gateway |
Modbus protocol conversion (stated for the serial-server series, no per-model mode names)
NB183 official product page, numbered specification table (cdebyte.com) — product introduction paragraph: 'The serial server series products independently developed by Ebyte integrate the TCP/IP protocol stack, which can realize two-way transparent transmission of data from serial port to Ethernet port, Modbus protocol conversion, serial port device cloud and other functions.'
|
| mqtt |
true
NB183 official product page, numbered specification table (cdebyte.com) — rows 6 and 7
|
| network_protocols |
IP, TCP/UDP, IPv4, ICMP, APR, DHCP, DNS, HTTP, MQTT
NB183 official product page, numbered specification table (cdebyte.com) — row 7 'Network protocol' (printed as 'APR'; that is the manufacturer's spelling of ARP)
|
| poe |
not stated
NB183 official product page, numbered specification table (cdebyte.com) — PoE is not mentioned anywhere on the NB183 product page - a NONE-forcing read returned NONE
|
| rs232 |
true
NB183 official product page, numbered specification table (cdebyte.com) — row 1 'Interface signal'
|
| rs422 |
true
NB183 official product page, numbered specification table (cdebyte.com) — row 1 'Interface signal'
|
| rs485 |
true
NB183 official product page, numbered specification table (cdebyte.com) — row 1 'Interface signal'; channel block 'RS485, 3.81mm phoenix terminal, support isolation'
|
| serial_baud_rate |
2400 ~ 115200 bps (default 115200)
NB183 official product page, numbered specification table (cdebyte.com) — row 8 'Serial port baud rate'
|
| serial_data_bits |
8
NB183 official product page, numbered specification table (cdebyte.com) — row 9 'Data bits'
|
| serial_ports |
8
NB183 official product page, numbered specification table (cdebyte.com) — channel block 'Channel 1 to Channel 4' and 'Channel 5 to Channel 8'
|
| serial_standard |
RS485, RS422, RS232
NB183 official product page, numbered specification table (cdebyte.com) — row 1 'Interface signal' - 'Serial port (RS485/RS422/RS232), network port (RJ45)'
|
| serial_stop_bits |
1, 2 (default 1)
NB183 official product page, numbered specification table (cdebyte.com) — row 10 'Stop bit'
|
Документи
manufacturer-document
NB183 official product page, numbered specification table (cdebyte.com)
product-page
NB183 official product page (cdebyte.com)