PUSR Industrial RS485 RS232 CAT4 Serial to 4G LTE Cellular Modem WiFi Global Frequency Modbus RTU to TCP USR-G786-G
SPECIFICATIONS
Brand Name: PUSR
Certification: CE,FCC
Configuration: Serial,Net,SMS AT commands
High-concerned chemical: none
Interface Form: RS485(Termianl)*1 RS232(Termianl)*1
LTE Category: LTE Cat.4
Model Number: USR-G786-G
Origin: Mainland China
Package: Yes
Products Status: STOCK
Style: External
Telecomcableconnected: Yes
Type: WireLess
Wireless Function: Yes
Product Description
4G Cellular Modems with Global Bands | M2M Cellular Modems
Reliable Serial to 4G Cellular Communication. With RS232 or RS485 interfaces, full network coverage, wide temperature and wide voltage, multi center transmission。Provides wireless data communications between field serial devices and the central control system to enable remote control of industrial field sites.G786-G is ideal for M2M and IoT applications including distribution automation, smart metering, water & wastewater, heating, street light monitoring and etc.
● Global Bands, Covering Global Regions
● RS485 Electrical Isolation
● High Reliability, High Rate, Low Latency
● FOTA Remote Upgrade

Models |
USR-DR504-G |
USR-G786-G |
USR-DR504-EUX |
USR-G786-EUX |
|
LTE Category |
LTE Cat.4 |
LTE Cat.4 |
LTE Cat.4 |
LTE Cat.4 |
|
Frequency Bands |
LTE FDD |
B1/B2/B3/B4/B5/B7/B8/B12/ B13/B18/B19/B20/B25/B26/B28 |
B1/B2/B3/B4/B5/B7/B8/B12/ B13/B18/B19/B20/B25/B26/B28 |
B1/B3/B7/B8/B20/B28A |
B1/B3/B7/B8/B20/B28A |
LTE TDD |
B38/B39/B40/B41 |
B38/B39/B40/B41 |
B38/B40/B41 |
B38/B40/B41 |
|
WCDMA |
B1/B2/B4/B5/B6/B8/B19 |
B1/B2/B4/B5/B6/B8/B19 |
B1/B8 |
B1/B8 |
|
GSM |
B2/B3/B5/B8 |
B2/B3/B5/B8 |
B3/B8 |
B3/B8 |
|
Transmission Speed |
LTE-FDD |
150Mbps(DL)/50Mbps(UL) |
150Mbps(DL)/50Mbps(UL) |
150Mbps(DL)/50Mbps(UL) |
150Mbps(DL)/50Mbps(UL) |
LTE-TDD |
130Mbps(DL)/30Mbps(UL) |
130Mbps(DL)/30Mbps(UL) |
130Mbps(DL)/30Mbps(UL) |
130Mbps(DL)/30Mbps(UL) |
|
DC-HSDPA |
42Mbps (DL) |
42Mbps (DL) |
42Mbps (DL) |
42Mbps (DL) |
|
HSUPA |
5.76Mbps (UL) |
5.76Mbps (UL) |
5.76Mbps (UL) |
5.76Mbps (UL) |
|
WCDMA |
384Kbps(DL)/ 384Kbps(UL) |
384Kbps(DL)/ 384Kbps(UL) |
384Kbps(DL)/ 384Kbps(UL) |
384Kbps(DL)/ 384Kbps(UL) |
|
GSM(EDGE) |
296Kbps (DL)/ 236.8Kbps (UL) |
296Kbps (DL)/ 236.8Kbps (UL) |
296Kbps (DL)/ 236.8Kbps (UL) |
296Kbps (DL)/ 236.8Kbps (UL) |
|
GSM (GPRS) |
107Kbps (DL)/ 85.6Kbps (UL) |
107Kbps (DL)/ 85.6Kbps (UL) |
107Kbps (DL)/ 85.6Kbps (UL) |
107Kbps (DL)/ 85.6Kbps (UL) |
|
Serial Parameters |
Interface form |
RS485(Terminal)*1 |
RS485(Termianl)*1 RS232(Termianl)*1 |
RS485(Terminal)*1 |
RS485(Termianl)*1 RS232(Termianl)*1 |
Data Bits |
8 |
8 |
8 |
8 |
|
Stop Bits |
1,2 |
1,2 |
1,2 |
1,2 |
|
Parity Bits |
NONE,ODD,EVEN |
NONE,ODD,EVEN |
NONE,ODD,EVEN |
NONE,ODD,EVEN |
|
Baud Rate |
2400~230400 |
2400~230400 |
2400~230400 |
2400~230400 |
|
Physical Interfaces |
SIM/USIM card |
1.8V/3V(中卡) |
1.8V/3V(大卡) |
1.8V/3V(中卡) |
1.8V/3V(大卡) |
Antenna |
SMA Female |
SMA Female |
SMA Female |
SMA Female |
|
USB |
USB 2.0 |
- |
USB 2.0 |
- |
|
Indicators |
POWER,WORK,NET,LINK,RSSI |
POWER,WORK,NET,LINK |
POWER,WORK,NET,LINK,RSSI |
POWER,WORK,NET,LINK |
|
Reload |
Button |
Button |
Button |
Button |
|
Reset |
/ |
/ |
/ |
/ |
|
Hardware Characteristics |
Input Voltage |
9V~36V |
9V~36V |
9V~36V |
9V~36V |
Connector |
Terminal |
Terminal |
Terminal |
Terminal |
|
Housing material |
ABS Plastic |
Metal |
ABS Plastic |
Metal |
|
Dimensions(mm) |
44.5×31.8×13.94 (L*W*H) |
111.51×94×28 (L*W*H) |
44.5×31.8×13.94 (L*W*H) |
111.51×94×28 (L*W*H) |
|
Operating temperature |
-30℃~+75℃ |
-35℃~+75℃ |
-30℃~+75℃ |
-35℃~+75℃ |
|
Storage Temperature |
-40℃~+85℃ |
-40℃~+90℃ |
-40℃~+85℃ |
-40℃~+90℃ |
|
Operating humidity |
5%~95% |
5%~95% |
5%~95% |
5%~95% |
|
Storage humidity |
5%~95% |
5%~95% |
5%~95% |
5%~95% |
|
Software |
Protocol |
TCP/UDP/DNS/HTTP/FTP |
TCP/UDP/DNS/HTTP/FTP |
TCP/UDP/DNS/HTTP/FTP |
TCP/UDP/DNS/HTTP/FTP |
Serial to network |
2 sockets, default A |
2 sockets, default A |
2 sockets, default A |
2 sockets, default A |
|
SMS |
PDU/TEXT |
PDU/TEXT |
PDU/TEXT |
PDU/TEXT |
|
Configuration |
Serial,Net,SMS AT commands |
Serial,Net,SMS AT commands |
Serial,Net,SMS AT commands |
Serial,Net,SMS AT commands |
|
Cache |
5 packets |
5 packets |
5 packets |
5 packets |
|
Packaging mechanism |
Packaging time(ms) |
100~60000,default100 |
100~60000,default100 |
100~60000,default100 |
100~60000,default100 |
Packaging length(byte) |
100~1000,default 1000 |
100~1000,default 1000 |
100~1000,default 1000 |
100~1000,default 1000 |
|
Others |
Tool |
USR-Cat 4Configuration Utility |
USR-Cat 4Configuration Utility |
USR-Cat 4Configuration Utility |
USR-Cat 4Configuration Utility |
Certifications |
CE,ROSH |
CE,ROSH |
CE,ROSH |
CE,ROSH |
|




Transparent Transmission
Provide data two-way transparent transmission between field
serial devices and the central control server
Support 2 Socket connections, support TCP Client and UDP
Support custom heartbeat package and registration package
Private protocols can be customized

HTTPD Client
HTTPD Client submit serial data to the designated server
by HTTP (GET/POST) method
HTTPD Client
HTTPD Client submit serial data to the designated server
by HTTP (GET/POST) method

Modbus RTU to TCP
Modbus RTU/Modbus TCP protocol conversion for
industrial SCADA systems and field devices.
Registration Package plus Heartbeat Package


Parameter Configuration
Support AT command setup by serial port,network ,
SMS and provide configuration tool for PC(windows).

Remote FOTA Upgrade
With the remote management platform,
it can realize the automatic firmware upgrade
The difference algorithm upgrade package is small,
saving upgrade traffic and time



Applications
G786 supports customized development based on many
different protocols such as MQTT and Modbus required by users.
Air Compressor IoT Monitoring System
The electromagnetic interference generated by the air compressor during operation
often affects the normal operation of other equipment. USR-G786 adopts
high-reliability RS485 electrical isolation to shield electromagnetic interference
while transmitting data.

Charging Pile - Data Transmission
When the charging pile is working, the data can quickly upload to the cloud server
through the USR-G786, which is convenient for the platform operators to manage piles


- Standard Shipping: Standard Shipping (12–18 Business Days)
- Express Shipping: Expedited Shipping (5–9 Business Days)
- Free Shipping: Orders over $199 qualify automatically
- Tracking: Full tracking number provided for all orders
- Returns: 30-day hassle-free return window
- Condition: Items must be unused and in original packaging
- Refund: Full refund processed within 3-5 business days
- Factory Direct: ISO/TS 16949 certified manufacturer
- Quality: 100% electrical continuity tested before shipment
- Experience: 15+ years in automotive connector industry
- Support: Professional technical support available
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