База знань › Gateways / Data Loggers
PUSR (Jinan USR IOT Technology Limited) USR-G781
Manufacturer documented GLOBAL
Identity
| category | gateways |
| manufacturer | PUSR (Jinan USR IOT Technology Limited) |
| manufacturer_part_number | USR-G781 |
| model | USR-G781 |
| mpn | USR-G781 |
| product_family | USR-G industrial cellular routers |
| product_status | active |
| region | GLOBAL |
| series | — |
| variant | — |
Electrical
| antenna |
SMA, 5 dBi
USR-G781 — official product page
|
| firewall |
supported
USR-G781 — official product page
|
| heartbeat_packet |
supported
USR-G781 — official product page
|
| identity_packet |
IMEI / ICCID / user-defined
USR-G781 — official product page
|
| indicators |
LINKA, LINKB, TXD, RXD, POWER, NET, WORK, SIM
USR-G781 — official product page
|
| input_voltage |
DC 9-36 V
USR-G781 — official product page
|
| sim |
6-pin SIM/USIM interface, 3 V / 1.8 V
USR-G781 — official product page
|
| static_routing |
supported
USR-G781 — official product page
|
| transparent_transmission |
TCP Server, TCP Client, UDP Server, UDP Client
USR-G781 — official product page
|
| vpn |
PPTP
USR-G781 — official product page
|
| work_modes |
Transparent mode, HTTPD Client mode
USR-G781 — official product page — page renders 'httpsD Client Mode'
|
| working_current |
average 180 mA @ 12 V; peak 300 mA @ 12 V
USR-G781 — official product page
|
Environment
| operating_humidity |
10-90 %
USR-G781 — official product page
|
| operating_temperature |
-35 to 75 degC
USR-G781 — official product page
|
| storage_temperature |
-40 to 125 degC
USR-G781 — official product page
|
Interfaces & connectors
| configuration |
setup software, AT command, web server
USR-G781 — official product page
|
| device_type | Industrial LTE cellular modem/router with RS232 and RS485 serial ports; PUSR's product narrative states a built-in Modbus RTU-to-Modbus TCP function |
| ethernet_ports |
1 x WAN and 1 x LAN
USR-G781 — official product page
|
| max_tcp_connections |
4
USR-G781 — official product page
|
| modbus_register_map_available | False |
| modbus_register_map_note | PUSR publishes no Modbus register map for this device: it is a protocol converter / gateway, not a Modbus slave with an addressable register file. |
| modbus_rtu_to_modbus_tcp_gateway |
claimed true - but see caveat
USR-G781 — official product page — 'Built-in Modbus RTU to TCP function, allowing users to directly connect devices via the RS485 interface without additional gateway configuration.' CAVEAT: the claim appears only in the page's marketing narrative, never in the specification table, whose Network-protocol row lists TCP/UDP/DNS/HTTP/FTP and no Modbus. The same sentence pattern is reused verbatim on other PUSR cellular pages. Flagged in review.
|
| network_protocols |
TCP, UDP, DNS, HTTP, FTP
USR-G781 — official product page — page renders 'https'; the pusr.com converter rewrites http->https. HTTPS is NOT claimed.
|
| serial_baud_rate |
300 - 460800 bps
USR-G781 — official product page
|
| serial_ports |
1 x RS232 and 1 x RS485
USR-G781 — official product page
|
Документи
certifications
Product Certifications (client-side wiki page)
product-page
USR-G781 — official product page