Rack-Mount 16-Port Serial Device Server, 4 LAN Ports (Optional POE)

Features Centralized data aggregation is a key design element of this 1U rack-mounted 16-Port Serial Device Server that integrates large RS232/485/422 networks into your backbone infrastructure. It includes an integrated 4-port Ethernet switch and seamless Modbus gateway functionality for large-scale enterprise control rooms.

Part No. 16CH-RS232/485/422-ETH
sku : IoT-SS111
INSTANT QUOTE

Enterprise 1U Rack-Mount 16-Port Serial Device Server

A high-capacity serial aggregation solution designed for standard 19-inch 1U racks. It delivers extreme data throughput via an internal ARM9 processing chip, seamlessly integrating massive serial networks into your central control room.

16-Port Serial Device Server 1U Rack-Mount Overview

Integrated 4-Port Switch & 16 Serial Channels

Equipped with a total of 20 RJ45 interfaces. It features 16 independent serial ports and 4 distinct 10/100M Ethernet ports acting as a built-in unmanaged switch, simplifying cascading and backbone network connections.

20 RJ45 interfaces including 4 LAN and 16 serial ports

Selectable RS232/485/422 Interfaces

Flexible physical layer configuration. Use standard RJ45 ports to accommodate various industrial equipment types, adapting instantly to field wiring requirements via optional terminal accessories.

Serial ports introduction and wiring pinouts
16CH RS232 RS485 RS422 selectable RJ45 ports

Independent Full-Duplex Operation

All 16 serial channels process data simultaneously. Powered by a high-speed ARM9 architecture, it supports baud rates up to 921.6Kbps continuously without any packet loss.

Individual full duplex work across 16 channels

Versatile Communication Protocols

Easily bridge legacy networks to the cloud. Supports TCP Server, TCP Client, UDP, Modbus RTU to TCP Gateway, and MQTT/JSON edge computing functionalities.

Support multiple communications and TCP UDP protocols

Multi-Host Modbus Gateway Polling

Avoid RS485 bus conflicts effortlessly. The gateway actively buffers and queues requests, allowing multiple SCADA master stations to poll the same serial device network concurrently.

Multi-master Modbus TCP concurrent polling

Comprehensive LED Status Indicators

Simplify your troubleshooting process. The front panel features a dense array of intuitive LED lights displaying power, network link status, and real-time data activity for every single channel.

Rich working status signal lights on front panel

Device management and configuration interface

1U Rack-Mount Dimensions

Physical 1U rack-mount outline dimensions

Selection guide

ModelSerial Port TypePower Supply Voltage RangeDimensions
(L × W × H)
1CH-RS485-ETH

1CH-RS485-ETH

Single serial port serverScrew terminalDC 9~24V89*37*59mm
1CH-RS232/485/422-ETH (V)

1CH-RS232/485/422-ETH (V)

RS232/485/422 choose one, single serial port serverScrew terminal + DC 5.5 power portDC 9~24V94*65*25mm
1CH-RS232/485/422-ETH

1CH-RS232/485/422-ETH

RS232/485/422 choose one, single serial port serverScrew terminal + DC 5.5 power portDC 9~24V94*65*25mm
2CH-RS485-ETH

2CH-RS485-ETH

 Dual serial ports serverScrew terminalDC 9~24V37*83*89mm
2CH-RS485-ETH(V)

2CH-RS485-ETH(V)

 Dual serial ports serverScrew terminalDC 9~24V150*105*41mm
2CH-RS232/485/422-ETH

2CH-RS232/485/422-ETH

RS232/485/422 choose one, Dual serial ports serverScrew terminal + DC 5.5 power portDC 9~24V94*65*25mm
4CH-RS485-ETH (V)

4CH-RS485-ETH (V)

4 serial ports serverScrew terminalDC 9~24V150*105*41mm
4CH-RS485-ETH

4CH-RS485-ETH

4 serial ports serverScrew terminalDC 9~24V37*83*89mm
4CH-RS232/485/422-ETH

4CH-RS232/485/422-ETH

RS232/485/422 choose one, 4 serial ports serverScrew terminal + DC 5.5 power portDC 9~24V92*197*25mm
8CH-RS485-ETH (V)

8CH-RS485-ETH (V)

8 serial ports serverScrew terminalDC 9~24V270*105*26mm
8CH-RS485-ETH

8CH-RS485-ETH

8 serial ports serverScrew terminalDC 9~24V37*83*89mm
8CH-RS232/485-ETH

8CH-RS232/485-ETH

8 serial ports serverScrew terminal + DC 5.5 power portDC 9~24V270*105*26mm
16CH-RS232/485/422-ETH

16CH-RS232/485/422-ETH

16 serial ports serverAC 220V power portAC 220V480*180*44mm
32CH-RS232/485/422-ETH

32CH-RS232/485/422-ETH

32 serial ports serverAC 220V power portAC 220V480*180*44mm

Features16CH-RS232/485/422-ETH32CH-RS232/485/422-ETH
Ethernet Port4× 10/100M RJ45 Ports (Switch structure)4× 10/100M RJ45 Ports (Switch structure)
Serial Interface16× RJ45 Ports (RS232/RS485/RS422)32× RJ45 Ports (RS232/RS485/RS422)
Power Supply220V AC (Standard Plug)
Power Consumption10W
Serial Specifications
Baud Rate300 ~ 921600 bps1200 ~ 921600 bps
Data & Parity BitsData: 5 ~ 9 bits | Parity: none, odd, even, mark, space
Flow ControlRTS/CTS, DTR/DCR, NONE
Software & Environment
ProtocolsTCP, UDP, HTTP, Modbus TCP, MQTT, JSON, DHCP, DNS
Operating Temp.-40°C ~ +85°C
Dimensions (L×W×H)48cm × 18cm × 4.4cm (1U Rack-Mount)
Massive 16-Port Aggregation

The 16CH-RS232/485/422-ETH is a standard 19-inch 1U rackmount serial converter for large-scale SCADA deployments. The device is based on a high-performance ARM9 processor and guarantees the simultaneous operation of all 16 serial ports in full duplex mode with a speed of up to 921.6Kbps without loss of packets.

Built-in 4-Port Ethernet Switch

It has 4 independent 10/100M Ethernet interfaces to ease server rack wiring. These ports also feature integrated switch functionality, so you can easily cascade multiple devices or uplink directly to your core network infrastructure using a single cable.

Versatile Edge Computing Capabilities

Each of the 16 channels can be configured separately as TCP server, TCP client, UDP or UDP multicast node. The device features advanced protocol conversion capabilities, native Modbus RTU to Modbus TCP conversion, and seamless serial data integration directly to Telnet or MQTT/JSON cloud platforms.

📥Documents

A&E Specification Sheet

[User Manual] Valtoris-16CH-RS232/485/422-ETH User Manual

[User Manual] Valtoris-16CH-RS232/485/422-ETH User Manual（Simple Version）

⚙️Utilities

[Setup Software] VirCom7.22

[Setup Software] sscom5.13.1 1

[Setup Software] virtual-serial-port-control-64bit3.6.2

Technical FAQ & Troubleshooting

How are the IP addresses assigned for the 16 serial ports?
The device adopts an efficient IP group architecture to save network resource. It uses one IP address for every 8 serial ports. So, to run all 16 channels, you only need two IP addresses for the entire 1U chassis. Each group contains individual serial ports which are identified and accessed by their respective TCP port numbers.
Why are the RS485 interfaces RJ45 ports, and how do I wire them?
RJ45 connectors are used for all physical connections, enabling a high-density 16-port configuration in a 1U panel. When wiring for RS485 you only need to use Pin 6 (485+) and Pin 7 (485-) on the RJ45 connector. We strongly suggest to purchase our optional RJ45 to 2-pin terminal block adapter accessories for ease of installation.
Can I connect this directly to my network without an external Ethernet switch?
Yes. The device includes 4 separate 10M/100M Ethernet interfaces that operate on a built-in switch architecture. You can plug your main uplink into any one of these ports and use the remaining ports to connect other IT equipment or to daisy-chain additional servers.
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