ATOP SW5501 Wi-Fi Serial Device Server
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The ATOP SW5501 is a DIN-rail Wi-Fi serial device server that connects one RS-232/422/485 device 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.
WirelessDual-band 2.4 GHz and 5 GHz, dual antennas
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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 SW5501 Series is our latest addition to our Industrial Wireless products; its small size but powerful architecture makes it a perfect choice for industrial/manufacturing needs in which size is a decisive factor. It rewards our customers with superb connectivity withstanding all the harshness in your environment of choice. Among its many characteristics, we could mention:
- 5 GHz frequency support to reduce interference on 2.4 GHz with other wireless devices.
- Dual antenna design that offers better wireless coverage and reduces wireless blind spots.
SW5501 specifications
| Serial Ports | 1 × RS-232/RS-422/RS-485, full function |
|---|---|
| Serial Interface | DSub9 (SW5501) or terminal block (SW5501-TB, SW5501-SiS) |
| Serial Isolation | 3 kV (optional) |
| RJ45 Ports | 1 × 10/100/1000BASE-T(X) |
| Wireless | IEEE 802.11n, 2.4 GHz and 5 GHz, dual antenna design |
| 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 MW5501C/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 SW5501 (DB9), SW5501-TB (terminal block) and SW5501-SiS (terminal block with serial isolation), and the same three for the 2-port SW5502. The SW5501C 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 SW5501 where 2.4 GHz is congested, a Gigabit wired port is wanted, or the serial line needs isolation.
Typical applications for the SW5501
- Putting a single RS-232/422/485 instrument or controller on a network over Wi-Fi
- Sites where 2.4 GHz is crowded, using the 5 GHz band
- Compact machines and cabinets where a full-size gateway will not fit
- Legacy PC software reaching remote serial devices through VirtualCOM
- Isolated RS-485 connections using the -SiS version
Complete the stack
Products that work with this one — connect it, power it, and get it online.
SW5501 — frequently asked questions
What is the difference between the SW5501 and the SW5501C?
The SW5501 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 SW5501C is 2.4 GHz only, has a 10/100BASE-T(X) port and no isolation option. Both are rated -10°C to +60°C and take 9-48 VDC.
Why choose 5 GHz?
ATOP added 5 GHz to reduce interference with other wireless devices on 2.4 GHz, and the dual-antenna design improves coverage and reduces blind spots.
Is the SW5501 a Modbus gateway?
No. ATOP lists it as a serial device server (VirtualCOM, TCP client/server, UDP, Reverse Telnet) and does not tick the Modbus TCP/RTU/ASCII gateway function. For Modbus TCP to RTU conversion over Wi-Fi, ATOP's model is the MW5501C, which is 2.4 GHz only.
Which connector versions exist?
SW5501 with a DB9 connector, SW5501-TB with a terminal block, and SW5501-SiS with a terminal block and serial isolation. The selection guide rates the isolation at 3 kV.
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 SW5501 Wi-Fi Serial Device Server cost in the UK?
The ATOP SW5501 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 SW5501 Wi-Fi Serial Device Server?
The ATOP SW5501 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.
