Cj-KF Series

Multi-Channel Dry Contact Signal to Fiber Optic Converter

Supports 1~4 channels the digital TTL signal to Fiber optic transmission
Independent 1~4 channel input, 1~4 channel output
Input mode can be elected by TTL input or dry contacts input
IP40 protection, Metal case, 35mm DIN-Rail Mounting
Support -40~75°C wide operating temperature range
Overview Specifications Models Resources
Overview

Overview of Multi-Channel Dry Contact Signal to Fiber Optic Converter

Cj-KF Series products are a type of multi-channel contact closure fiber conversion equipment. It adopts the latest ARM chip, which is quite stable, reliable low power, supports 1 ~ 4 channels contact closure(Dry Contact or CC) signal to Fiber optic transmission.
It requires no change of the user communication protocol solves the problem of electromagnetic interference, ground ring interference thunder destroys, which greatly improve the signal reliability, safety confidentiality, at the same time solve the problem of traditional mode of short distant transmission.
Protection grade is IP30, strengthen cabinet, 35mmDIN guide installation, industrial stard DC24V power supply, possess the protection function of power polarity reverse connect.
Specifications

Specifications of Multi-Channel Dry Contact Signal to Fiber Optic Converter

TTL digital signal interface
Independent 1 ~ 4 channel input, 1~4 channel output
Input mode can be elected by TTL input or dry contacts input
TTL input level: input level + 0~1V/logic "0", input level + 5~30V/logic "1"
Relay output interface
Dry contacts input: Short circuit or Open
Output modes: 5V TTL / 24V TTL output, or relay output
Relay output form: FORM C (SPDT)
Relay-operating time 6ms
Relay release time 3ms
Total switch time 10ms
Relay contacts capacity 1A/24VDC
Transmission delay time: 2 ms
The maximum working switch frequency: 50Hz
Optical Interface
Wave length: Multi-mode 850nm/1310 nm, Single mode 1310 nm/1550nm
Multi-mode 50/125um, 62.5/125um, 100/140um

Single mode 8.3/125 um, 9/125um, 10/125um
Transmission distance: Multi-mode 2km, Single mode 20KM
Fiber interface type: ST/SC/FC (optional); ST (standard configuration)

Power and protection Power: Industrial standard24V (+/-5%) power supply
With power polarity and reverse connect protection

5-pin Industrial Pluggable Screw Terminal
Mechanical
      Dimensions: 136mm×54mm×106mm (H×W×D)

      Casing: IP40 protection, Metal case

      Installation: 35mmDIN-Rail, Wall Mounting

      Net Weight: 800g

Environmental 

        Operating Temperature:-40℃~85℃
      Storage Temperature: -40℃~85℃
        Ambient Relative Humidity: 5%~95%(non-condensing)

Certification

    IEC61000-4-2 (ESD): Power ±2KV Contact, ±15KV Air
      Relay ±2KV Contact, ±15KV Air; Data Cable ±15KV Air
      IEC61000-4-4 (EFT):Power ±4KV, Data Cable ±4KV
      IEC61000-4-5 (Surge):Power ±2KV CM/ ±1KV DM, Relay±2KV CM/ ±1KV DM
      IEC60068-2-27 (Shock)
      IEC60068-2-32 (Free Fall)
      IEC61000-6-2 (General Industrial Standard)
Warranty 5 years
Models

Models of Multi-Channel Dry Contact Signal to Fiber Optic Converter

Available Models

Features

Cj-KF11

 1 channel CC signal fiber optic converters, dry contact closure input SPDT Form C relay output
 Multi-mode 2KM/Single-mode 20KM Optional,  ST/SC/FC Connector Optional

Cj-KF21

 2 CHs CC signal fiber optic converters, dry contact closure input SPDT Form C relay output
 
Multi-mode 2KM/Single-mode 20KM Optional,  ST/SC/FC Connector Optional

Cj-KF31

 CHs CC signal fiber optic converters, dry contact closure input SPDT Form C relay output
 Multi-mode 2KM/Single-mode 20KM Optional,  ST/SC/FC Connector Optional

Cj-KF41

 4 CHs CC signal fiber optic converters, dry contact closure input SPDT Form C relay output
 Multi-mode 2KM/Single-mode 20KM Optional,  ST/SC/FC Connector Optional

Resources

Name

Version

Date

  CK7220M Series Datasheet 

V1.2

2022-03-07