ATOP SW5502 Wi-Fi Serial Device Server
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The ATOP SW5502 is a DIN-rail Wi-Fi serial device server that connects two RS-232/422/485 devices to a network over dual-band 2.4/5 GHz Wi-Fi or a 10/100/1000BASE-T(X) Gigabit RJ45 port. It supports VirtualCOM, TCP client/server and UDP modes, takes 9-48 VDC, offers optional 3 kV serial isolation and operates from -10°C to +60°C in a compact 47 × 110 × 90 mm housing.
Serial Ports and Wireless2 × RS-232/422/485 over dual-band 2.4/5 GHz Wi-Fi
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- 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
The ATOP SW5502 is a compact industrial Wi-Fi serial and Modbus gateway that puts serial field devices onto a wireless network. Its small footprint makes it easy to fit inside crowded machines, panels and cabinets where a full-size gateway will not go, while still delivering the robust connectivity industrial and manufacturing sites demand. It bridges RS-232/485 serial equipment and Modbus traffic over Wi-Fi to controllers, SCADA or cloud systems, removing cable runs to moving or hard-to-reach assets. Built to withstand harsh operating conditions, it is a practical way to add wireless serial connectivity where space is the deciding factor. Typical UK uses include machine builders, retrofit projects and mobile plant. See our Wi-Fi serial and Modbus gateways.
Manufacturer datasheet (PDF)
SW5502 specifications
| Serial Ports | 2 × RS-232/RS-422/RS-485, full function |
|---|---|
| Serial Interface | DSub9 (SW5502) or terminal block (SW5502-TB, SW5502-SiS) |
| Serial Isolation | 3 kV (optional) |
| RJ45 Ports | 1 × 10/100/1000BASE-T(X) |
| Wireless | IEEE 802.11n, 2.4 GHz and 5 GHz |
| Operating Modes | TCP client, TCP server, UDP, VirtualCOM, Reverse Telnet |
| TCP Client Connections | Up to 2 (VCOM) |
| TCP Server Connections | Up to 4 (VCOM) |
| UDP | 4 ranges |
| Modbus Gateway Function | Not listed by ATOP for SW5501/2 (see MW5502C) |
| Input Voltage | 9-48 VDC |
| Mounting | DIN-rail |
| Ingress Protection | IP30 |
| Dimensions | 47 × 110 × 90 mm (L × H × D) |
| Operating Temperature | -10°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Certifications | CE/FCC, UL/EN/IEC (CB) 60950-1 and/or 62368-1, EN 60950-1 and/or EN 62368, industrial EMC protection |
Specifications taken from the manufacturer datasheet.
Which version do I need?
ATOP documents the SW5501 and SW5502 in one row (1 or 2 serial ports). The brochure lists SW5502 (2 × DB9), SW5502-TB (2 × terminal block) and SW5502-SiS (2 × terminal block with serial isolation). The SW5502C is the lower-specification sibling: 2.4 GHz only instead of 2.4/5 GHz, 10/100BASE-T(X) instead of Gigabit Ethernet and no isolation option, with the same -10°C to +60°C rating. Choose the SW5502 where 2.4 GHz is congested, a Gigabit wired port is wanted, or the serial lines need isolation.
Typical applications for the SW5502
- Putting two serial devices in one panel on a network over Wi-Fi
- Sites where 2.4 GHz is crowded, using the 5 GHz band
- Machine builders fitting wireless serial access into crowded cabinets
- Legacy PC software reaching remote serial devices through VirtualCOM
- Isolated RS-485 lines using the -SiS version
Complete the stack
Products that work with this one — connect it, power it, and get it online.
SW5502 — frequently asked questions
What is the difference between the SW5502 and the SW5502C?
The SW5502 has dual-band 2.4/5 GHz Wi-Fi, a 10/100/1000BASE-T(X) Gigabit RJ45 port and an optional 3 kV serial isolation version. The SW5502C is 2.4 GHz only, has a 10/100BASE-T(X) port and no isolation option. Both have two serial ports, take 9-48 VDC and are rated -10°C to +60°C.
What is the difference between the SW5502 and the SW5501?
Only the serial port count: two RS-232/422/485 ports on the SW5502, one on the SW5501. Wi-Fi, Ethernet, power, housing and temperature ratings are the same.
Which connector versions exist?
SW5502 with two DB9 connectors, SW5502-TB with two terminal blocks, and SW5502-SiS with two terminal blocks and serial isolation, rated 3 kV in the selection guide.
Is the SW5502 a Modbus gateway?
No. ATOP lists it as a serial device server (VirtualCOM, TCP client/server, UDP, Reverse Telnet). For Modbus TCP to RTU/ASCII conversion over Wi-Fi, ATOP's 2-port model is the MW5502C, which is 2.4 GHz only.
What temperature range is it rated for?
-10°C to +60°C operating and -40°C to +85°C storage, so it suits indoor panels rather than unheated outdoor enclosures.
How many network connections does it support?
Up to 2 TCP client connections and up to 4 TCP server connections, 4 UDP ranges, plus VirtualCOM and Reverse Telnet.
How much does the ATOP SW5502 Wi-Fi Serial Device Server cost in the UK?
The ATOP SW5502 Wi-Fi Serial Device Server 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 SW5502 Wi-Fi Serial Device Server?
The ATOP SW5502 Wi-Fi Serial Device Server 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.
