Rack-Mount 32-Port Serial Device Server, 4 LAN Ports (Optional POE)

This 1U Rack-mountable 32-Port Serial Device Server is designed for extreme high density data aggregation and incorporates an advanced ARM9 processor to consolidate massive RS232/485/422 device networks. It comes with built-in Modbus/Telnet conversion and industrial 4-port Ethernet switch capability for enterprise data center.

Part No. 32CH-RS232/485/422-ETH
sku : IoT-SS112
INSTANT QUOTE

Enterprise 32-Port Serial Device Server

A flagship 1U rack-mounted communication node designed for extreme high-density data aggregation, seamlessly bridging up to 32 serial interfaces with modern enterprise networks.

32-Port Serial Device Server main features overview

1U Rack-Mount & High-Density Interface

Features a standard 19-inch 1U frame structure explicitly designed for traditional computer rooms and data centers. The front panel boasts an impressive 36 RJ45 ports, comprising 4 independent LAN ports and 32 full-duplex serial ports.

19-inch standard 1U frame structure design
36 RJ45 ports including 4 LAN and 32 serial ports

Advanced ARM9 Processing & IP Routing

Powered by a robust ARM9 processor, the gateway ensures data flows smoothly at up to 921.6Kbps without packet loss, even under full 32-channel load. It utilizes an innovative IP "split" technology, requiring only 4 IP addresses for all 32 ports (1 IP per 8 ports) to conserve critical IT network resources.

Support 921.6Kbps high speed data flow without packet loss
IP split technology different serial ports distinguished by IP

Modbus Gateway & Multi-Host Polling

Eliminates serial bus collisions via built-in storage-type Modbus RTU to TCP conversion. The multi-host feature allows multiple SCADA systems to concurrently query the 32-port network without experiencing communication timeouts.

Modbus gateway Modbus RTU to TCP protocol conversion
Support multiple hosts concurrent polling features

Multiple Communication Modes

Incredibly flexible edge configurations. Each of the 32 channels can independently run TCP Server, TCP Client, UDP, or Multicast modes tailored to your specific application topology.

Support multiple communication modes TCP UDP client server

Comprehensive Indicators & Hardware Details

Equipped with a rich array of status indicator lights on the front panel, operators can instantly visually diagnose network link states and physical serial data activity for every single channel.

Rich status indicator light for link and data activity
Product management and configuration utility interface
32-Port Serial Server real shot front view
32-Port Serial Server real shot back view

Outline Dimensions

Physical CAD outline dimensions 1U rack mount

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

Hardware & Interfaces
Ethernet Port4× 10/100M RJ45 Ports (Integrated switch structure)
Serial Interface32× RJ45 Ports. Each supports RS232/RS485/RS422 (RS422 requires internal jumper modification)
Power Supply220V AC
Power Consumption10W
Serial Specifications
Processing ChipHigh-performance ARM9
Baud Rate1200 ~ 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, Telnet
Operating Temp.-40°C ~ +85°C
Dimensions (L×W×H)48cm × 18cm × 4.4cm (Standard 19-inch 1U Rack)
Massive 32-Port Aggregation via ARM9

The flagship 1U rack-mount protocol converter 32CH-RS232/485/422-ETH is suitable for high data loads. With a powerful ARM9 processing chip, it ensures that the 32 independent serial ports operate simultaneously in full duplex mode at ultra-high speeds up to 921.6Kbps without packet loss and data bottlenecks.

Innovative IP Allocation Technology

Managing 32 IP addresses on a factory network can be a logistical nightmare. This device employs smart IP “split” technology, grouping the hardware so that one IP address manages 8 serial ports (differentiated by TCP port numbers). This means a massive 32-channel deployment only consumes 4 IP addresses on your facility’s network.

Integrated Switch & Edge Capabilities

Total 36 RJ45 interfaces, 4 of which are dedicated 10/100M Ethernet ports, functioning as a built-in switch for instant network uplinking or cascading. It also includes transparent Modbus RTU to Modbus TCP conversion, Multi-Host polling arbitration, and serial to Telnet protocol support.

Technical FAQ & Troubleshooting

Do I need to allocate 32 IP addresses on my router for all the serial ports?
No, and this is a major advantage of our architecture. The device uses IP “split” technology, grouping 8 serial ports under a single IP address (differentiated by TCP port numbers). Therefore, a fully loaded 32-channel unit only requires 4 IP addresses in total on your network, drastically saving IT resources.
Can the device handle all 32 ports transmitting at high baud rates simultaneously?
Absolutely. Unlike entry-level gateways, the 32CH-RS232/485/422-ETH features an advanced ARM9 processing chip. It is designed to provide high-speed, full-duplex data transmission at speeds of up to 921.6Kbps across all channels, with no packet loss or latency spikes.
How do I wire the RS485 connections since the interfaces are RJ45 jacks?
It offers 32-port density in a 1U chassis with standard RJ45 ports. For RS485 communication, you only need to wire the Pin 6 (485+) and 7 (485-) of the RJ45 plug. An optional adapter cable is available for RS232 to easily convert the RJ45 port to a DB9 male connector.
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