Industrial Cellular Router Advantech SmartFlex SR304

Flexible 4G Router & IoT Gateway with 3-port Switch, Ethernet and RS-232/422/485 serial ports with isolation Advantech SmartFlex SR304

Actual replacement SmartFlex SR303

SmartFlex SR304 cellular router provides secure Internet connectivity for devices and LANs via cellular networks. It provides automatic wireless failover for wired networks, wireless connectivity for devices in remote locations such as industrial PCs, HMIs, traffic controllers, kiosks, meters, cameras, and much more. SmartFlex serves well also for applications that require video transmitting because of download speed up to 150 Mbps and upload speed up to 50 Mbps. Modular SmartFlex design can be ordered in many hardware options. Standard hardware configuration always includes 2 Ethernet 10/100 ports with 2 independent LANs/IP addresses – optionally with POE+ PSE or POE PD feature – 1 USB host port, 1 microSD cardholder, 2 SIM card holders for automatic failover to an alternate service provider, 2 binary inputs (I/O), 1 binary output (I/O), and onboard GPS/Glonass receiver.

• 4G LTE Cat.4 Cellular connectivity
• Powerful CPU and enhanced memory
• Extended operational temperature range from -40 °C to +75 °C
• 10-60 VDC operation with and reverse polarity voltage protection
• Flexible port options – 3-port Switch, Ethernet and RS-232/422/485 serial ports with isolation
• GPS, GLONASS ,BeiDou, Galileo and QZSS support
• MicroSD card holder
• Sleep mode for solar and battery power applications
• Optional industrial grade Wi-Fi
• Linux based OS & SW customization
• Advanced security features

Additional information

---

System
CPU	ARM Cortex-A8, 1000 MHz
Memory	RAM - 512 MB NOR Flash - 256 MB MRAM - 128 KB (128 MB for Router APPs, 128 kB for customer data)
Watchdog	HW Watchdog
RTC	Battery backup RTC
Interfaces
Ethernet	2× Ethernet, RJ45, 10/100 Mbps, Isolation 1.5 kV
Port expansion option BB-SR304xx1xx	3-port Ethernet switch, RJ45, 10/100 Mbps, Isolation 1.5 kV
Port expansion option BB-SR304xx3xx	1× RS232 (Tx, Rx, GND, RTS, CTS), 5-pin terminal block, Isolation 2.5 kV 1× RS485/422 (2× TxRx+, 2× TxRx-), 4-pin terminal block, Isolation 2.5 kV
Port expansion option BB-SR304xx4xx	1× Ethernet, RJ45, 10/100 Mbps, Isolation 2.5 kV 1× RS232 (AUX, GND, Tx, Rx), 4-pin terminal block (no isolation) 1× RS485 (TxRx+, TxRx-, GND), 3-pin terminal block, Isolation 2.5 kV
Port expansion option BB-SR304xx6xx	2× RS485 (2× TxRx+, 2× TxRx-, GND), 5-pin terminal block, Isolation 2.5 kV
I / O	2× Digital Input (60 V AC/DC, 7 mA) 1× Digital Output (60 V AC/DC 300 mA) (6-Way Molex connector)
USB	1× USB 2.0 Host Connector
MicroSD Card	1× Micro SD Card Slot (SDHC, SDXC)
Reset Button	Factory reset
LED Indicators	System-power, Data activity, 3-level signal strength, SIM1/SIM2 status, PoE status, Input 0 status, Input 1 status, Output state, User, ETH
Environmental
Power Supply	10 – 60 V DC (2-Way Molex connector)
Consumption	Idle 2.5 W / Average 4 W / Peak 11 W
Sleep Mode	Yes, 10 mW
Operating Temperature	- 40 to +75 °C
Storage Temperature	- 40 to +85 °C
Humidity	5 to 95 %
IP Cover	IP30
Physical Characteristics
Dimensions	55 × 97 × 125 mm
Enclosure	Robust Metal Case or Plastic Case
Mounting	DIN Rail
Weight	Metal version: 375 g Plastic version: 170 g
WiFi - Optional
Antenna	1× R-SMA connector
Standards	IEEE802.11 a/b/g/n 2.4 GHz / 5 GHz
Security	WEP, TKIP, AES, WPA, WPA2, 802.1X
Modes	Access Point (max 10 clients), Station, Multirole STA & AP
GNSS
Antenna	1× SMA connector, active (50 mA)
Systems	GPS, GLONASS, BeiDou, Galileo
Protocol	NMEA 0183 v3.0
Ac Time-to-First-Fix	Hot start 1 s, Warm start: 29 s, Cold 32 s
Cellular Interface
SIM Slots	2× SIM (Mini SIMs – 2FF)
Antennas	2× SMA connector (1× Main, 1× Diversity)
LTE Parameters	FDD frequencies: B20 (800 MHz), B5 (850 MHz), B8 (900 MHz),B3 (1800 MHz), B1 (2100 MHz), B7 (2600 MHz) TDD frequencies: B40 (2300 MHz), B41 (2500 MHz), B38 (2600 MHz) LTE FDD transfer rate: 150 Mbps (DL) / 50 Mbps (UL) LTE TDD transfer rate: 130 Mbps (DL) / 35 Mbps (UL)
HSPA+ Parameters	Supported frequencies: B5 (850 MHz), B8 (900 MHz), B1 (2100 MHz) Transfer rate: 42 Mbps (DL) / 5.76 Mbps (UL)
UMTS Parameters	Supported frequencies: B5 (850 MHz), B8 (900 MHz), B1 (2100 MHz) Transfer rate: 384 kbps (DL) / 384 kbps (UL)
TD-SCDMA Parameters	Supported frequencies: B5 (850 MHz), B8 (900 MHz), B1 (2100 MHz) Transfer rate: 4.2 Mbps (DL) / 2.2 Mbps (UL)
EDGE/GPRS Parameters	Supported frequencies: B2 (1900 MHz)/ B3 (1800 MHz)/ B5 (850 MHz)/ B8 (900 MHz) Transfer rate: 296Kbps (DL), 236.8Kbps (UL)