ATOP SE5904D Rugged Serial to Ethernet Device Server
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SE5904D is a 4-port industrial secure serial device server. It connects four software-selectable RS-232/RS-422/RS-485 ports, running at 1,200 to 921,600 bps, to two 10/100BASE-T(X) RJ-45 ports or two 100/1000 Base-X SFP slots. Use it when four serial field devices need Ethernet access with RSTP redundancy, OpenVPN or IPsec tunnelling, and -40°C to +85°C operation.
Serial ports4x RS-232/422/485 software selectable, 1,200 ~ 921,600 bps
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- Manufacturer's warranty
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Description
The Industrial Serial Device Server SE5904D is a cost effective gateway for Ethernet (TCP/IP) and serial signal communications; allowing almost any serial device to be connected to a new or existing Ethernet network. By encapsulating serial data and transporting it over Ethernet, SE5904D offers full-duplex and bi-directional data seamlessly between the four serial ports and the Ethernet network, through 2x 10/100 Ethernet ports or 2x 100/1000 SFP Fiber slots.
SE5904D specifications
| Serial ports | 4 |
|---|---|
| Serial mode | RS-232/422/485 software selectable |
| Serial connector | 4x D-Sub9 (DB models) or 4x 5.08mm 5-pin terminal block (TB models) |
| Baud rate | 1,200 ~ 921,600 bps software selectable |
| Data bits / stop bits | 7, 8 software selectable / 1, 2 software selectable |
| Flow control | None, Xon/Xoff, RTS/CTS |
| Serial isolation | 3kV (Sis versions only) |
| Ethernet ports | 2x 10/100BASE-T(X) RJ-45 or 2x 100/1000 Base-X SFP slots (SFP version) |
| LAN mode | Dual subnets or RSTP redundancy |
| Power over Ethernet | IEEE 802.3af Power over Ethernet (PD) - PoE version only |
| USB | 1x USB A Type connector (USB 2.0) |
| Protocols | IPv4, ICMP, TCP, UDP, DHCP Client, SNMPv1/v2c/v3, HTTP, HTTPS, Telnet, SMTP/TLS, RFC2217, 802.1D-2004 RSTP |
| Security | PPTP, OpenVPN (client/server), IPsec (host-to-host / host-to-side), up to 37.9Mbps throughput |
| Link modes | TCP Client (single destination or VirtualCOM); TCP Server (4 connections); UDP up to 4 IP ranges |
| Power input | Dual 12 - 48VDC (non-PoE models) or through Ethernet cable (PoE versions) |
| Power consumption | Approximately 8 W (max); 0.65 A @ 12VDC |
| Relay output | 1A @ 30 VDC (normal open) |
| Operating temperature | -40°C to +85°C (-40°F to +185°F) |
| Ambient relative humidity | 5% to 95%, 55°C (non-condensing) |
| Housing | IP30 SPCC housing |
| Dimensions (W x H x D) | 55 x 145 x 113 mm |
| Weight | 1000 g |
| Installation | DIN-Rail, wall mount (optional kit) |
| MTBF | 14.56 years (according to MIL-HDBK-217F) |
| Warranty | 5 years |
Specifications taken from the manufacturer datasheet.
Which version do I need?
Suffixes documented in the ordering table: -DB gives four D-Sub9 serial connectors, -TB gives four 5.08mm 5-pin terminal blocks, -Sis gives isolated terminal-block serial ports, -PoE- makes the unit an IEEE 802.3af powered device, and -G-...-SFP replaces the two RJ-45 ports with two 100/1000BASE-X SFP slots. SFP transceivers are ordered separately as accessories.
Typical applications for the SE5904D
- Networking PLCs, HMIs, barcode scanners and data terminals over TCP/IP
- Industrial and manufacturing automation cells with four serial devices
- Secure remote access to serial equipment over the internet via OpenVPN or IPsec
- Fibre-linked serial connectivity in electrically noisy plants using the SFP models
- Single-cable installations using PoE where no local power supply exists
- Ring or redundant-link Ethernet segments using RSTP
Complete the stack
Products that work with this one — connect it, power it, and get it online.
SE5904D — frequently asked questions
How many serial ports does the SE5904D have and which modes do they support?
Four ports, each software selectable between RS-232, RS-422 and RS-485, at 1,200 to 921,600 bps. They are supplied either as four D-Sub9 connectors (DB models) or four 5.08mm 5-pin terminal blocks (TB models).
Can the SE5904D be powered over Ethernet?
Yes, on PoE models, which are IEEE 802.3af powered devices and need no separate power supply. Non-PoE models take dual 12-48 VDC on a 7-pin 5.08mm lockable terminal block. Power consumption is approximately 8 W maximum either way.
Is there a fibre version?
Yes. The SFP models (part numbers ending -SFP) replace the two 10/100BASE-T(X) RJ-45 ports with two 100/1000 Base-X SFP slots. SFP transceivers are listed as separate accessories, in multi-mode 550m and 2km and single-mode 10km and 40km variants, all rated -40°C to +85°C.
What isolation do the -Sis models provide?
The specification table states 3kV isolation on Sis versions, while ATOP's ordering descriptions for the same parts say 2kV isolated. Confirm the required isolation level with us against the specific part number before ordering.
What VPN and redundancy features are built in?
OpenVPN client/server, IPsec host-to-host and host-to-side, and PPTP, with up to 37.9Mbps throughput. The two Ethernet ports can be configured as dual subnets or for 802.1D-2004 RSTP redundancy so a backup link takes over if the primary fails.
How much does the ATOP SE5904D Rugged Serial to Ethernet Device Server cost in the UK?
The ATOP SE5904D Rugged Serial to Ethernet 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 SE5904D Rugged Serial to Ethernet Device Server?
The ATOP SE5904D Rugged Serial to Ethernet 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.
