TTL digital signal converters

Cj-df series products are a type of multi-channel analog signal, the digital signal, and serial ports RS232/485/422 fiber conversion multiplexing equipment. It adopts the latest ARM chip, which is quite stable, reliable and low power, supports 1 ~ 4 channels the digital TTL signal/contact closure signal, 1 ~ 4 channel analog (voltage/current), 1 ~ 2 channel RS232/485 or a channel RS422 signal in the fiber alone or multiplexing transmission. It requires no change of the user communication protocol and solves the problem of electromagnetic interference, ground ring interference and thunder destroys, which greatly improve the signal reliability, safety and 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 standard DC24V power supply, possess the protection function of power polarity reverse connect.

Performance index

Contact closure signal/TTL digital signal interface

Ø Independent 1 ~ 4 channel input, 1~4 channel output

Ø Input mode can be elected by TTL input or dry contacts input

Ø TTL input level: input level + (0 ~ 1) V/logic "0", input level + (5 ~ 30) V/logic "1"

Ø Dry contacts input: short circuit or open

Ø Output modes: the optional for 5V TTL / 24V TTL output, or relay output

Ø Relay output form: FORM C（SPDT&#65289

Relay-operating time 6ms

Relay release time 3ms

Total switch time 10ms

Relay contacts capacity 1A/24VDC

Ø Transmission delay time: 2 milliseconds

Ø The maximum working switch frequency: 50Hz

Fiber optic interface Ø Fiber optic wavelength:multimode850nm、1310 nm; single mode1310 nm、1550nm

Ø Transmission fiber optic: multimode 50/125 um、62.5/125 um、100/140um;single mode8.3/125 um、9/125um、10/125um

Ø Transmission range: multimode 2Km, single mode 20Km. Optional in far distance

Ø Fiber interface type: ST, SC, FC optional, with standard ST light interface

Power and protection

Ø Power：Industrial standard24V（+/-5%）power supply, Possess the power meter protector against fraud function, 5-pin Pluggable Screw Terminal

Mechanical feature

Ø Overall dimension：146mm×135mm×53mm (H*W*D)

Ø Shell:IP30 Grade of Protection

Ø Installation Method: 35mmDIN rail installation

Ø Net weight:800g

Working environment Ø Operating temperature: -10-70℃（-40~+85℃ optional&#65289

Ø Relative humidity: ≤90%(no condensation)

Ø Storage temperature: ﹣40～80&#8451