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6 Port Managed Din-Rail Programmable Serial Device Servers
Product Overview

KPS2204 is a programmable serial server for the network applications of serial devices. KPS2204 combines Ethernet and serial data communication, and offers protocol transition between Ethernet and serial protocol. It supports secondary development on Linux system, and reserved programmable push switch, level detection terminal, programmable LED Indicators for the user's secondary development.

KPS2204 supports 2 10/100Base-T(X) copper ports and 4 RS232/RS422/RS485 serial ports. It provides 18-36VDC or 36-72VDC redundant power inputs, supports DIN-Rail mounting or Panel mounting, supports IP40 protection class, and supports Telnet and WEB management methods. KPS2204 is specially designed for harsh and dangerous industrial environments. It has EMC protection properties for power supply over current or over voltage, EMC protection properties for RJ45 ports and RS232/422/485 serial ports. 

Key Features

2 10/100Base-T(X) RJ45 ports and 4 RS232/422/485 serial ports
Supports Reset button
Serial ports have 15KV ESD protection circuit
Supports secondary development on Linux system
Interfaces and power cable offer surge protection
EMC performance reaches industrial level 4
IP40 protection class

Software Functions
Network Security Supports SSH
Management & Maintenance Supports Telnet and WEB management methods
Supports FTP software upgrade
Supports LLDP
Clock Management Supports SNTP Client
Product Specifications
Standard IEEE 802.3i(10Base-T)
IEEE 802.3u(100Base-TX and 100Base-FX)
IEEE 802.3x (flow control)
Interface Fast Ethernet Ports: 10/100Base-T(X) RJ45 port
Serial Ports:
Quantity of serial ports: 4 RS232/RS485/RS422
Electrical characteristic: compliant with 3-wire RS232, 4-wire RS422 and 2-wire RS485 standards
Physical interface: DB9, male
Bit error rate of data transmission:≤10-10
Baud rate: 50bps-230400bps (Default: 9600)
Transmission Distance: RS232: 15m, RS422/RS485: 1200m
Data bits: 5, 6, 7, 8 (Default: 8)
Stop bits: 1, 2 (Default: 1)
Parity bit: None, Even, Odd, Space, Mark (Default: None)
Flow control: XON/XOFF (Default: XOFF)
LED Indicators in the front panel
Running LED: Run
Power LED: PWR1, PWR2
Interface LED: Link, ACT (RJ45 Ports); T1-T4, R1-R4 (Serial Ports)
Button Reset: Reset configuration
Default: Load default configuration
Power Requirements Power Input:
Power Terminal:
5-pin 5.08mm-spacing plug-in terminal block
Power Consumption<5w
Overload Protection: Support
Reverse Connection Protection: Support
Redundancy Protection: Support
Physical Characteristics Housing: Metal
Heat Dissipation Mode: Natural cooling, without fans
Protection Class: IP40
Dimensions:55.4mm×139mm×119.5 mm (W×H×D)
Weight: 0.5kg
Mounting: DIN-Rail or Panel mounting
Environmental Limits Operating Temperature: -40°C to +85°C
Storage Temperature: -40°C to +85°C
Ambient Relative Humidity: 5-95% (non-condensing)
Quality Assurance MTBF: 333,755 hrs
Warranty: 5 years
Industry Standard EMI:
FCC CFR47 Part 15,EN55022/CISPR22,Class A
IEC61000-4-2(ESD) ±8kV(contact),±15kV(air)
IEC61000-4-3(RS) 10V/m(80MHz-2GHz)
IEC61000-4-4(EFT) Power Port:±4kV;Data Port:±2kV
IEC61000-4-5(Surge) Power Port:±2kV/DM,±4kV/CM;Data Port:±2kV
IEC61000-4-6(CS) 3V(10kHz-150kHz);10V(150kHz-80MHz)
Mechanical standards:
IEC60068-2-6 (Vibration),
IEC60068-2-27 (Shock),
IEC60068-2-32 (Free Fall)
Mechanical Drawing

Ordering Information
2T4D 2 × 10/100Base-T(X) RJ45 ports, 4 × RS232/RS422/RS485 serial ports
L1-L1 48VDC(36-72VDC), redundant power inputs
L3-L3 24VDC(18-36VDC), redundant power inputs
DT-FCZ-RJ45-01  Dustproof cover for RJ45 port