RS485 to RJ45 Ethernet Serial Server
Available with a lead time
Expect dispatch between Aug 25 and Aug 28
Quantity Discounts:
- 10+ $30.94 (exc GST)
- 25+ $29.97 (exc GST)
Overview
RS485 TO ETH (C) is an industrial serial server that bridges RS485 devices to Ethernet networks. It supports transparent TCP/UDP transmission, a Modbus RTU⇄TCP gateway, MQTT/HTTP JSON upload, and virtual COM operation. This (C) version uses a standard RJ45 Ethernet port, accepts 6–36 V DC via screw terminals, and includes power & signal isolation for robust industrial use. DIN-rail case, compact, easy to install.
Variant note: Waveshare lists multiple versions on one page. This Core Electronics listing is for RS485 TO ETH (C). If you need PoE power input, choose RS485 TO POE ETH (B) instead (same software features, PoE hardware and isolation). :contentReference[oaicite:0]{index=0}
Key Features
- RS485 ⇄ Ethernet bi-directional transparent transmission
- Operating modes: TCP Server, TCP Client (can coexist with Server), UDP, UDP Multicast
- Protocol gateway: Modbus RTU ⇄ Modbus TCP; RS485 data → JSON for MQTT/HTTP upload
- Multi-host roll-polling support; user-defined heartbeat/registration packets; NTP time
- Web configuration, DHCP/DNS support; Windows tools for discovery, config, and virtual COM
- Industrial temperature range and DIN-rail mounting
All features above are common across the RS485 TO ETH family; (C) adds wide-range DC input and electrical isolation. :contentReference[oaicite:1]{index=1}
Specifications (RS485 TO ETH (C))
| Interfaces | RS485 ×1 (isolated), 10/100M RJ45 Ethernet (2 kV surge) |
| Power Input | 6–36 V DC via screw terminals, with isolation |
| Network Protocols | IP, TCP, UDP, HTTP, ARP, ICMP, DHCP, DNS |
| Serial Settings | 300–115200 bps; 5–9 data bits; parity: none/odd/even/mark/space |
| Operating Modes | TCP Server, TCP Client, UDP, UDP Multicast (Client can coexist with Server) |
| Gateway Functions | Modbus RTU⇄TCP; RS485→JSON for MQTT/HTTP GET/POST |
| Management | Web UI; device discovery/config via Windows utility; virtual COM (VCOM) |
| Environment | -40 °C to +85 °C; 5–95% RH |
| Dimensions | 87 × 36 × 59 mm (L×W×H), DIN-rail case |
Specs summarised from Waveshare’s product page and the RS485 TO ETH (C) wiki. :contentReference[oaicite:2]{index=2}
What’s in the Box
- RS485 TO ETH (C) module ×1
Power supply not included. For DIN-rail deployments, a 12 V industrial DIN-rail PSU is recommended. :contentReference[oaicite:3]{index=3}
Resources
- Waveshare Wiki – RS485 TO ETH (C): configuration, examples, tools :contentReference[oaicite:4]{index=4}
- VirCom (Windows) – device discovery/config & virtual COM driver :contentReference[oaicite:5]{index=5}
Compatibility & Applications
- Connect PLCs, meters, sensors, and other RS485 devices to IP networks
- Modbus RTU devices exposed as Modbus TCP on LAN
- IoT data uplink via MQTT/HTTP (JSON), with optional polling/storage modes
For PoE power input (IEEE 802.3af) choose RS485 TO POE ETH (B). If you need a basic, non-isolated version with 9–24 V input, see RS485 TO ETH (B). :contentReference[oaicite:6]{index=6}
Exact shipping can be calculated on the view cart page (no login required).
Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).
We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):
- $3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
- $7+ for Standard Post (typically 6+ business days, tracked)
- $11+ for Express Post (typically 2+ business days, tracked)
- Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.
Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.
Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.
International Orders - the following rates are for New Zealand and will vary for other countries:
- $12+ for Pack and Track (3+ days, tracked)
- $16+ for Express International (2-5 days, tracked)
If you order lots of gear, the postage amount will increase based on the weight of your order.
Our physical address (here's a PDF which includes other key business details):
40 Aruma Place
Cardiff
NSW, 2285
Australia
Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.
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