ATOP MB5901B Cellular Serial to Ethernet Modbus Gateway
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The MB5901B is a 4G LTE cellular Modbus gateway and router. The EU version covers FDD LTE bands B1/B3/B5/B7/B8/B20 at up to 150 Mbps downlink and 50 Mbps uplink, and provides one 10/100/1000BASE-TX Ethernet port plus one software-selectable RS-232/485 serial port. Use it to reach Modbus RTU/ASCII devices at sites with no fixed line. Operating temperature is -40°C to +70°C.
Cellular bands (EU version)FDD LTE 2100/1800/850/2600/900/800MHz (B1/B3/B5/B7/B8/B20)
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Delivery & assurance
- Ships from the UK
- UK & EU delivery, quoted with your price
- Pay by card or invoice
- Manufacturer's warranty
Questions about this product? Call our UK team: 023 9223 3611
Description
A compact and rugged 4G Modbus Gateway
Based on ATOP’s Industrial-grade hardware, the MB5901B Series is a cost-effective Modbus Gateway for seamless conversion between Ethernet-based Modbus TCP and serial-based Modbus RTU/ASCII for demanding applications such as Industry 4.0 and Smart Grids. Its rugged, reliable hardware features high EMC protection, wide temperature operation, and programming and installation flexibility in one device, while its advanced performance protects your data over the Internet with secure IPsec VPN or OpenVPN tunnels, with its powerful CPU providing up to 37.9Mbps* software-assisted AES encryption.
MB5901B specifications
| Cellular standard | WCDMA / DC-HSPA+ / LTE |
|---|---|
| SIM | Internal SIM card slot (x1) |
| FDD LTE bands (EU) | 2100/1800/850/2600/900/800MHz (B1/B3/B5/B7/B8/B20) |
| TDD LTE bands (EU) | 2600/2300/2500MHz (B38/B40/B41) |
| WCDMA bands (EU) | 2100/850/900MHz (B1/B5/B8) |
| Data rate (EU, LTE-FDD) | 150 Mbps downlink / 50 Mbps uplink |
| Data rate (EU, LTE-TDD) | 130 Mbps downlink / 30 Mbps uplink |
| Ethernet port | 1x 10/100/1000BASE-TX RJ-45 |
| Ethernet standards | IEEE 802.3 10BaseT; 802.3u 100BaseT(X); 802.3ab 1000BaseT(X) |
| Serial ports | 1 port RS-232/485 (2-wire) software selectable; 1 port RS-232 (IO model only) |
| Serial connector | D-Sub9 RS-232/485 software selectable (DB model) or 14-pin 5.08mm terminal block (integrated with DI/DOs) |
| Baud rate | 1,200 to 921,600 bps software selectable |
| Data bits / stop bits | 7, 8 / 1, 2 software selectable |
| Digital inputs (IO models) | 2 channels photo coupler isolated digital input |
| Digital outputs (IO models) | 2 channels digital output, N.O. (2A@24VDC) |
| USB ports | 2 x USB A Type (USB 2.0): 1 port high-speed OTG + 1 port power only |
| GNSS (GPS models) | GPS, Glonass, Beidou; 1x SMA connector |
| Security | IPsec or OpenVPN tunnelling, max VPN throughput 37.9Mbps; PPTP; SMTP/TLS |
| Modbus protocol | Bi-directional Modbus TCP/RTU/ASCII, Virtual ID mapping |
| Maximum clients/slaves | Modbus TCP: maximum 16 clients; maximum 32 slave connections |
| Management | Web, ATOP Device Management Utility, SNMPv1/v2c/v3, SMS |
| Input voltage | 9-48 VDC |
| Power consumption | 0.65A@12VDC (approx. 7.8W) |
| Power redundancy | USB DC 5V power input |
| Housing | IP30 protection, SPCC metal housing |
| Dimensions (W x H x D) | 32mm x 122mm x 92mm |
| Weight | 400 g |
| Installation | DIN-Rail or wall-mount (optional kit) |
| Operating temperature | -40°C to +70°C (-40°F to +158°F) |
| Storage temperature | -40°C to +85°C |
| Ambient relative humidity | 5% to 95% (non-condensing) |
| Safety | CB (IEC/EN62368-1 & IEC/EN60950-1), UL60950-1 |
| MTBF | 20.88 years (MIL-HDBK-217F, model average) |
| Warranty | 5 years |
Specifications taken from the manufacturer datasheet.
Which version do I need?
UK and European buyers need an -EU part number, which carries the EU band set (FDD LTE B1/B3/B5/B7/B8/B20, TDD LTE B38/B40/B41, WCDMA B1/B5/B8). The -US variants cover B2/B4/B5/B12/B13/B14/B66/B71 and are not suitable for UK networks. Suffixes then add features: -IO gives 2 digital inputs, 2 digital outputs and an extra RS-232 port on a terminal block (base models use a DB9); -GPS adds GNSS; -B- adds the embedded power bank. Example EU part numbers: MB5901B-4G-EU, MB5901B-IO-4G-EU, MB5901B-IO-4G-GPS-EU, MB5901B-4G-B-EU, MB5901B-IO-4G-B-EU, MB5901B-IO-4G-GPS-B-EU.
Typical applications for the MB5901B
- Remote Modbus sites with no fixed-line connection
- Industry 4.0 plant data collection
- Smart grid installations
- Fault relay to the host on power failure using the battery-backed -B- version
- Asset location using the GPS/GNSS variant
- Alarm and status monitoring over the 2 digital inputs and 2 digital outputs on -IO models
Complete the stack
Products that work with this one — connect it, power it, and get it online.
MB5901B — frequently asked questions
Which version do I need for a UK 4G network?
The EU version. It supports FDD LTE 2100/1800/850/2600/900/800MHz (B1/B3/B5/B7/B8/B20), TDD LTE 2600/2300/2500MHz (B38/B40/B41) and WCDMA 2100/850/900MHz (B1/B5/B8). The US version's bands (B2/B4/B5/B12/B13/B14/B66/B71) do not match UK networks.
Does it have digital I/O?
On the -IO models, yes: 2 channels of photo-coupler isolated digital input and 2 channels of digital output, normally open, rated 2A at 24 VDC. These are accessible via dedicated Modbus registers, and the IO models also add a second RS-232 serial port.
What does the -B- battery version add?
An additional embedded power bank giving 15 seconds of back-up power in the event of a power failure, so the device can relay the failure to the host before it shuts down.
Can it be managed without a data session?
Yes. Special management via SMS is supported, including polling data, issuing commands and system reboots. Web, ATOP Device Management Utility and SNMP v1/v2c/v3 are also available.
How fast is the VPN and what serial speed does it reach?
IPsec or OpenVPN tunnels reach a maximum VPN throughput of 37.9 Mbps (tested with one IPsec tunnel, peer-to-peer, over the Ethernet cable; cellular performance varies). The serial port runs at 1,200 to 921,600 bps.
How much does the ATOP MB5901B Cellular Serial to Ethernet Modbus Gateway cost in the UK?
The ATOP MB5901B Cellular Serial to Ethernet Modbus Gateway is supplied to order and priced on application. Send a quote request and we confirm the price and lead time in writing, usually the same working day. No account is needed. Indiott is a UK distributor invoicing with VAT (PSI Technologies Ltd, VAT GB 730 2340 83).
What is the lead time and delivery cost for the ATOP MB5901B Cellular Serial to Ethernet Modbus Gateway?
The ATOP MB5901B Cellular Serial to Ethernet Modbus Gateway is supplied to order. We confirm the lead time in writing with your quote, before you commit to anything. UK delivery is a flat £14.25 per order ex VAT, whatever the weight or how many items you order. We ship to GB and the EU and provide a VAT invoice with every order.
