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Detail

SR303

SR303

Life Cycle: EOL, FW maintenance only

Regions: EMEA

4G LTE Router & Gateway

Technical description

SmartFlex SR303 is an industrial cellular router intended for the market in Europe, Middle
East and Africa (EMEA) area. This router is an ideal device for wireless communication in
mobile networks that make use of LTE, HSPA+, UMTS, EDGE or GPRS technology. Due to
the high speed of data transfer up to 100 Mbps (download) and up to 50 Mbps (upload) is this
router an ideal solution for specialized M2M devices and IoT as well as for wireless connection
of traffic and security camera systems, individual computers, LAN networks, automatic teller
machines (ATM) and other self-service terminals.
The standard configuration includes two Ethernet 10/100 ports, one USB 2.0 Host port,
two binary inputs and one output (I/O connector). The device also has two readers for 3 V and
1.8 V SIM cards, which are located on the rear panel of the router. The router also includes
a microSD card port that supports up to 64 GB card storage (32 GB in the case of SDHC
cards). The router can be equipped with a WiFi module, but this must be part of the initial
configuration – it cannot be added to the router at some point in the future.
The router can be equipped with PoE PD (Power over Ethernet – Powered Device), which
allows the router to be powered via Ethernet. It can also be equipped with PoE PSE (Power
over Ethernet – Power Source Equipment), which lets the router power other devices via Eth-
ernet. The SmartFlex can also be configured with a wide variety of port options. These can
be SWITCH – three switched Ethernet ports; RS232 – serial interface; RS232-RS485/422 –
combination of serial interfaces; RS232-RS485-ETH – combination of serial interfaces and
Ethernet port with higher insulation. The router can be provided in either a plastic or metal
casing, depending upon the customer’s requirements.

Compatible accessories

Documents to download

Hardware Manual

SmartFlex_SR303_Hardware_Manual_20230811.pdf | 9 MB | 18.04.2024

Configuration Manual

SmartFlex_EN_Configuration_Manual_6.4.2_20240829.pdf | 6 MB | 29.05.2024

SmartFlex_EN_Configuration_Manual_6.4.3_20240816.pdf | 6 MB | 16.08.2024

ISO Certificates

ADVANTECH_CZECH_ISO_27001_Certificate_EN_2025.pdf | 26.06.2025

ADVANTECH_CZECH_ISO_9001_Certificate_EN_2025.pdf | 26.06.2025

Declaration

POS_2022_060_SmartFlex_SR303_EN.pdf | 23.06.2022

POS_2022_061_UKCA_SmartFlex_SR303_EN.pdf | 23.06.2022

Certificate

E-mark Homologation.pdf | 19.06.2018

PO-2023-67_SmartFlex_E8_Approval_extended.pdf | 23.05.2023

POS-2026-014-REACH_20260807.pdf | 07.08.2026

POS-2026-014-REACH_20260807.pdf | 07.08.2026

POS-2026-015-WEEE_20260807.pdf | 07.08.2026

POS-2026-015-WEEE_20260807.pdf | 07.08.2026

POS-2026-016-RoHS_20260807.pdf | 07.08.2026

POS-2026-016-RoHS_20260807.pdf | 07.08.2026

PO_2022_110_SmartFlex_E8_10_9019_01.pdf | 27.06.2022

PO_2022_157_SmartFlex_Electric Safety ed 2014.pdf | 13.10.2022

PO_2022_158_SmartFlex_Electric Safety ed 2018.pdf | 13.10.2022

SR303_UAE Approval.pdf | 31.07.2019

SmartFlex_SR303_Anatel_NCC_16423_18_M1.pdf | 02.03.2020

SmartFlex_SR303_NCC_Brasil_certificate.pdf | 31.07.2019

v 6.6.2 (28.07.2026)

Firmware_Compatibility_Chart_20260728.pdf | 354 KB

Release_Notes_6.6.2.pdf | 226 KB

spectre-v3-lte.zip | 23 MB

v 6.6.1 (24.04.2026)

Firmware_Compatibility_Chart_20260424.pdf | 336 KB

Release_Notes_6.6.1.pdf | 222 KB

spectre-v3-lte.zip | 23 MB

v 6.6.0 (17.12.2025)

Firmware_Compatibility_Chart_20251217.pdf | 249 KB

Release_Notes_6.6.0.pdf | 232 KB

spectre-v3-lte.zip | 21 MB

v 6.5.4 (22.07.2025)

Firmware_Compatibility_Chart_20250722.pdf | 245 KB

Release_Notes_6.5.4.pdf | 195 KB

spectre-v3-lte.zip | 21 MB

v 6.5.3 (28.05.2025)

Firmware_Compatibility_Chart_20250528.pdf | 243 KB

Release_Notes_6.5.3.pdf | 211 KB

spectre-v3-lte.zip | 21 MB

v 6.5.2 (03.03.2025)

Firmware_Compatibility_Chart_20250303.pdf | 248 KB

Release_Notes_6.5.2.pdf | 237 KB

spectre-v3-lte.zip | 20 MB

v 6.5.1 (28.11.2024)

Firmware_Compatibility_Chart_20241128.pdf | 250 KB

Release_Notes_6.5.1.pdf | 225 KB

spectre-v3-lte.zip | 21 MB

v 6.5.0 (08.10.2024)

Firmware_Compatibility_Chart_20241008.pdf | 287 KB

Release_Notes_6.5.0.pdf | 263 KB

spectre-v3-lte.zip | 21 MB

v 6.4.3 (16.08.2024)

Firmware_Compatibility_Chart_20240816.pdf | 286 KB

Release_Notes_6.4.3.pdf | 188 KB

spectre-v3-lte.zip | 19 MB

v 6.4.2 (29.05.2024)

Firmware_Compatibility_Chart_20240529.pdf | 286 KB

Release_Notes_6.4.2.pdf | 237 KB

spectre-v3-lte.zip | 19 MB

v 6.4.1 (27.03.2024)

Firmware_Compatibility_Chart_20240327.pdf | 246 KB

Release_Notes_6.4.1.pdf | 192 KB

spectre-v3-lte.zip | 19 MB

v 6.4.0 (07.02.2024)

Firmware_Compatibility_Chart_20240207.pdf | 251 KB

Release_Notes_6.4.0.pdf | 266 KB

spectre-v3-lte.zip | 19 MB

v 6.3.10 (05.05.2023)

Firmware_Distribution_Overview_20230505.pdf | 249 KB

release-notes-6.3.10.pdf | 267 KB

spectre-v3-lte.zip | 16 MB

v 6.3.9 (04.01.2023)

Firmware_Distribution_Overview_20230104.pdf | 248 KB

release-notes-6.3.9.pdf | 328 KB

spectre-v3-lte.zip | 16 MB

v 6.3.8 (02.12.2022)

firmware-distribution-overview-20221202.pdf | 246 KB

release-notes-6.3.8.pdf | 401 KB

spectre-v3-lte.zip | 16 MB

v 6.3.7 (27.09.2022)

firmware-distribution-overview-20220927.pdf | 241 KB

release-notes-6.3.7.pdf | 383 KB

spectre-v3-lte.zip | 16 MB

v 6.3.6 (16.06.2022)

firmware-distribution-overview-20220616.pdf | 240 KB

release-notes-6.3.6.pdf | 817 KB

spectre-v3-lte.zip | 15 MB

v 6.3.5 (20.04.2022)

firmware-distribution-overview-20220420.pdf | 185 KB

release-notes-6.3.5.pdf | 805 KB

spectre-v3-lte.zip | 15 MB

v 6.3.4 (09.02.2022)

firmware-distribution-overview-20220209.pdf | 238 KB

release-notes-6.3.4.pdf | 826 KB

spectre-v3-lte.zip | 15 MB

v 6.3.3 (13.12.2021)

firmware-distribution-overview-20211213.pdf | 594 KB

release-notes-6.3.3.pdf | 811 KB

spectre-v3-lte.zip | 15 MB

v 6.3.2 (30.09.2021)

firmware-distribution-overview-20210930.pdf | 234 KB

release-notes-6.3.2.pdf | 822 KB

spectre-v3-lte.zip | 15 MB

v 6.3.1 (21.07.2021)

firmware-distribution-overview-20210721.pdf | 236 KB

release-notes-6.3.1.pdf | 779 KB

spectre-v3-lte.zip | 15 MB

v 6.3.0 (07.05.2021)

firmware-distribution-overview-20210507.pdf | 238 KB

release-notes-6.3.0.pdf | 776 KB

spectre-v3-lte.zip | 15 MB

v 6.2.9 (07.04.2021)

firmware-distribution-overview-20210407.pdf | 234 KB

release-notes-6.2.9.pdf | 753 KB

spectre-v3-lte.zip | 14 MB

v 6.2.8 (19.02.2021)

firmware-distribution-overview-20210219.pdf | 595 KB

release-notes-6.2.8.pdf | 787 KB

spectre-v3-lte.zip | 14 MB

v 6.2.7 (17.12.2020)

firmware-distribution-overview-20201217.pdf | 228 KB

release-notes-6.2.7.pdf | 640 KB

spectre-v3-lte.zip | 14 MB

v 6.2.6 (11.09.2020)

firmware-distribution-overview-20200911.pdf | 586 KB

release_notes_6.2.6.pdf | 618 KB

spectre-v3-lte.zip | 14 MB

v 6.2.5 (13.06.2020)

firmware-distribution-overview-20200613.pdf | 586 KB

release-notes-6.2.5.pdf | 615 KB

spectre-v3-lte.zip | 14 MB

v 6.2.4 (25.04.2020)

firmware-distribution-overview-20200427.pdf | 586 KB

release-notes-6.2.4.pdf | 643 KB

spectre-v3-lte.zip | 14 MB

v 6.2.3 (11.02.2020)

firmware-distribution-overview-20200211.pdf | 587 KB

release-notes-6.2.3.pdf | 614 KB

spectre-v3-lte.zip | 14 MB

v 6.2.2 (16.12.2019)

firmware-distribution-overview-20191216.pdf | 639 KB

release-notes-6.2.2.pdf | 632 KB

spectre-v3-lte.tar.gz | 14 MB

v 6.2.1 (16.10.2019)

firmware-distribution-overview_20191107.pdf | 382 KB

release-notes-6.2.1.pdf | 644 KB

spectre-v3-lte.tar.gz | 14 MB

v 6.2.0 (16.08.2019)

firmware-distribution-overview_20190816.pdf | 381 KB

release-notes-6.2.0.pdf | 768 KB

spectre-v3-lte.tar.gz | 41 MB

v 6.1.9 (23.04.2019)

firmware-distribution-overview-20190423.pdf | 384 KB

release-notes-6.1.9.pdf | 829 KB

spectre-v3-lte.tar.gz | 35 MB

v 6.1.8 (08.11.2018)

firmware-distribution-overview_20181204.pdf | 379 KB

release-notes-6.1.8.pdf | 871 KB

spectre-v3-lte.tar.gz | 35 MB

v 6.1.7 (25.07.2018)

firmware-distribution-overview-20180725.pdf | 379 KB

release-notes-6.1.7.pdf | 830 KB

spectre-v3-lte.tar.gz | 12 MB

v 6.1.6 (11.03.2018)

firmware-distribution-overview-20180311.pdf | 378 KB

release-notes-6.1.6.pdf | 825 KB

spectre-v3-lte.tar.gz | 12 MB

v 6.1.5 (03.01.2018)

Firmware_Distribution_Overview_20180212.pdf | 379 KB

Release_Notes_6.1.5.pdf | 791 KB

spectre-v3-lte.tar.gz | 12 MB

v 6.1.4 (25.09.2017)

Firmware Distribution Overview_20170927.pdf | 379 KB

Release_Notes_6.1.4.pdf | 811 KB

SPECTRE-v3-LTE.tar.gz | 12 MB

Router Apps

Available Router Apps

Pictures

SR30X0X01X_SmartFlex_000.png | 2 MB

SR30X0X01X_SmartFlex_001.png | 2 MB

SR30X0X01X_SmartFlex_002.png | 2 MB

SR30X0X01X_SmartFlex_003.png | 2 MB

SR30X0X01X_SmartFlex_004.png | 2 MB

SR30X0X01X_SmartFlex_005.png | 2 MB

SR30X0X02X_SmartFlex_SL_000.png | 2 MB

SR30X0X02X_SmartFlex_SL_001.png | 2 MB

SR30X0X02X_SmartFlex_SL_002.png | 2 MB

SR30X0X02X_SmartFlex_SL_003.png | 2 MB

SR30X0X02X_SmartFlex_SL_004.png | 2 MB

SR30X0X11X_SmartFlex_LTE_SWITCH_000.png | 2 MB

SR30X0X11X_SmartFlex_LTE_SWITCH_001.png | 2 MB

SR30X0X11X_SmartFlex_LTE_SWITCH_002.png | 2 MB

SR30X0X12X_SmartFlex_LTE_SWITCH_SL_000.png | 2 MB

SR30X0X12X_SmartFlex_LTE_SWITCH_SL_001.png | 2 MB

SR30X0X12X_SmartFlex_LTE_SWITCH_SL_002.png | 2 MB

SR30X0X31X_SmartFlex_RS232_RS485_000.png | 2 MB

SR30X0X31X_SmartFlex_RS232_RS485_001.png | 2 MB

SR30X0X31X_SmartFlex_RS232_RS485_002.png | 2 MB

SR30X0X32X_SmartFlex_RS232_RS485_SL_000.png | 2 MB

SR30X0X32X_SmartFlex_RS232_RS485_SL_001.png | 2 MB

SR30X0X32X_SmartFlex_RS232_RS485_SL_002.png | 2 MB

SR30X0X41X_SmartFlex_ETH_RS485_RS232_000.png | 2 MB

SR30X0X41X_SmartFlex_ETH_RS485_RS232_001.png | 2 MB

SR30X0X41X_SmartFlex_ETH_RS485_RS232_002.png | 2 MB

SR30X0X42X_SmartFlex_ETH_RS485_RS232_SL_000.png | 2 MB

SR30X0X42X_SmartFlex_ETH_RS485_RS232_SL_001.png | 2 MB

SR30X0X42X_SmartFlex_ETH_RS485_RS232_SL_002.png | 2 MB

SR30X1X01X_SmartFlex_WiFi_000.png | 2 MB

SR30X1X01X_SmartFlex_WiFi_001.png | 2 MB

SR30X1X01X_SmartFlex_WiFi_002.png | 2 MB

SR30X1X02X_SmartFlex_WiFi_SL_000.png | 2 MB

SR30X1X02X_SmartFlex_WiFi_SL_001.png | 2 MB

SR30X1X02X_SmartFlex_WiFi_SL_002.png | 2 MB

SR30X1X11X_SmartFlex_LTE_SWITCH_WiFi_000.png | 2 MB

SR30X1X11X_SmartFlex_LTE_SWITCH_WiFi_001.png | 2 MB

SR30X1X11X_SmartFlex_LTE_SWITCH_WiFi_002.png | 2 MB

SR30X1X12X_SmartFlex_LTE_SWITCH_WiFi_SL_000.png | 2 MB

SR30X1X12X_SmartFlex_LTE_SWITCH_WiFi_SL_001.png | 2 MB

SR30X1X12X_SmartFlex_LTE_SWITCH_WiFi_SL_002.png | 2 MB

SR30X1X31X_SmartFlex_RS232_RS485_WiFi_000.png | 2 MB

SR30X1X31X_SmartFlex_RS232_RS485_WiFi_001.png | 2 MB

SR30X1X31X_SmartFlex_RS232_RS485_WiFi_002.png | 2 MB

SR30X1X32X_SmartFlex_RS232_RS485_WiFi_SL_000.png | 2 MB

SR30X1X32X_SmartFlex_RS232_RS485_WiFi_SL_001.png | 2 MB

SR30X1X32X_SmartFlex_RS232_RS485_WiFi_SL_002.png | 2 MB

SR30X1X41X_SmartFlex_ETH_RS485_RS232_WiFi_000.png | 2 MB

SR30X1X41X_SmartFlex_ETH_RS485_RS232_WiFi_001.png | 2 MB

SR30X1X41X_SmartFlex_ETH_RS485_RS232_WiFi_002.png | 2 MB

SR30X1X42X_SmartFlex_ETH_RS485_RS232_WiFi_SL_000.png | 2 MB

SR30X1X42X_SmartFlex_ETH_RS485_RS232_WiFi_SL_001.png | 2 MB

SR30X1X42X_SmartFlex_ETH_RS485_RS232_WiFi_SL_002.png | 2 MB

3D Model

SmartFlex_RS232_RS485_ETH_WiFi_plastic.PDF | 1 MB

SmartFlex_RS232_RS485_ETH_WiFi_plastic.STEP | 32 MB

SmartFlex_RS232_RS485_ETH_plastic.PDF | 1 MB

SmartFlex_RS232_RS485_ETH_plastic.STEP | 31 MB

SmartFlex_RS232_RS485_WiFi_plastic.PDF | 1 MB

SmartFlex_RS232_RS485_WiFi_plastic.STEP | 33 MB

SmartFlex_RS232_RS485_plastic.PDF | 1 MB

SmartFlex_RS232_RS485_plastic.STEP | 31 MB

SmartFlex_SWITCH_metal.PDF | 1 MB

SmartFlex_SWITCH_metal.STEP | 30 MB

SmartFlex_Switch_WIFI_metal.PDF | 1 MB

SmartFlex_Switch_WIFI_metal.STEP | 32 MB

SmartFlex_metal.PDF | 965 KB

SmartFlex_metal.STEP | 26 MB

SmartFlex_plastic.PDF | 969 KB

SmartFlex_plastic.STEP | 26 MB

Smart_flex_WIFI_metal.PDF | 1 MB

Smart_flex_WIFI_metal.STEP | 27 MB

SA - Security Advisory

SA-2021-01_FW_5.1.3_and_older_EN.pdf | 15.01.2021

SA-2021-02_DNSpooq_Vulnerabilities_EN.pdf | 24.02.2021

PCN - Product Change Notification

PCN-2018-03_Standoff_replacement_EN.pdf | 02.01.2018

PCN-2018-04_Screws_for_plastic_DIN_holder_EN.pdf | 05.02.2018

PCN-2018-08_Metal_Housing_Improvement_EN.pdf | 31.05.2018

PCN-2018-10_Uploading_of_hmpclient_UM_EN.pdf | 09.11.2018

PCN-2019-02_ANATEL_Certification_for_SmartFlex_EN.pdf | 22.03.2019

PCN-2019-03_Unique_Default_Password_EN.pdf | 19.11.2019

PCN-2020-01_European_Power_Supply_Changed_EN.pdf | 22.01.2020

PCN-2020-03_BB_SBD40_DIN_Bracket_Replacement.pdf | 20.04.2020

PCN-2021-04_New_Safety_Certification.pdf | 01.06.2021

PCN-2021-06_SmartStart_SmartFlex_Antenna_Replacement.pdf | 28.05.2021

PCN-2021-07_SmartFlex_ATEX_Termination.pdf | 15.10.2021

PCN-2022-02_WA_DMP_Activated.pdf | 23.05.2022

PCN-2022-03_Rev.2.0_SIM_Slot_Replacement.pdf | 06.09.2022

PCN-2023-07_Unique_EAN_Codes.pdf | 29.08.2023

PCN-2025-02_SmartFlex_PoE_PS_Adjustment.pdf | 22.05.2025

MTBF

MTBF report SmartFlex SR303000xx.pdf | 13.12.2019

MTBF report SmartFlex SR303001xx SWITCH.pdf | 13.12.2019

MTBF report SmartFlex SR303003xx RS232 RS485.pdf | 13.12.2019

MTBF report SmartFlex SR303004xx RS232 RS485 ETH.pdf | 13.12.2019

MTBF report SmartFlex SR303080xx PSE.pdf | 13.12.2019

MTBF report SmartFlex SR303081xx SWITCH PSE.pdf | 13.12.2019

MTBF report SmartFlex SR303083xx RS232 RS485 PSE.pdf | 13.12.2019

MTBF report SmartFlex SR303084xx RS232 RS485 ETH PSE.pdf | 13.12.2019

MTBF report SmartFlex SR303090xx PD.pdf | 13.12.2019

MTBF report SmartFlex SR303091xx SWITCH PD.pdf | 13.12.2019

MTBF report SmartFlex SR303093xx RS232 RS485 PD.pdf | 13.12.2019

MTBF report SmartFlex SR303094xx RS232 RS485 ETH PD.pdf | 13.12.2019

MTBF report SmartFlex SR303100xx WIFI.pdf | 13.12.2019

MTBF report SmartFlex SR303101xx SWITCH WIFI.pdf | 13.12.2019

MTBF report SmartFlex SR303103xx RS232 RS485 WIFI.pdf | 13.12.2019

MTBF report SmartFlex SR303104xx RS232 RS485 ETH WIFI.pdf | 13.12.2019

MTBF report SmartFlex SR303104xx RS232 RS485 ETH WIFI.pdf | 13.12.2019

MTBF report SmartFlex SR303180xx WIFI PSE.pdf | 13.12.2019

MTBF report SmartFlex SR303180xx WIFI PSE.pdf | 13.12.2019

MTBF report SmartFlex SR303181xx SWITCH WIFI PSE.pdf | 13.12.2019

MTBF report SmartFlex SR303183xx RS232 RS485 WIFI PSE.pdf | 13.12.2019

MTBF report SmartFlex SR303190xx WIFI PD.pdf | 13.12.2019

MTBF report SmartFlex SR303191xx SWITCH WIFI PD.pdf | 13.12.2019

MTBF report SmartFlex SR303193xx RS232 RS485 WIFI PD.pdf | 13.12.2019

MTBF report SmartFlex SR303194xx RS232 RS485 ETH WIFI PD.pdf | 13.12.2019

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