?
?
Fiber?optical?Switch?
User’s?manual
1、safety?Inbation
（1）Power?Requirement：?
5V?DC（350mA）。

The?Unit?requires?5V?DC?(350?mA)?power?source?to?operate.
（2）Safety?Instructions?：
To?avoid?the?risk?of?any?damage,?read?the?user’s?manual?thoroughly?before?operation.??
·It?is?important?to?keep?all?optical?connectors?and?surfaces?free?from?oil,?dirt,?or?other?contamination?to?ensure?proper?operation.?Clean?the?connectors?before?operation?and?use?dust-proof?cap?when?Unit?not?in?operation.
·The?Unit?has?reliable?quality?and?good?perbance,?but?repairing?needs?many?equipments?and?professional?technology.?Never?try?to?adjust?or?repair?the?Unit?without?our?agreement.
Warning?：
·To?ensure?the?properly?use,?see?the?Pin?Assignments?and?Typical?Controller?Connections?sections.?Befor?operation?,ensure?connect?it?correctly?.
·Never?look?into?the?end?of?an?optical?cable?connected?to?an?optical?output?device?that?is?operating.?Laser?radiation?is?invisible,?and?direct?exposure?can?severely?injure?the?human?eye.
·Do?not?use?the?unit?outdoors.
·To?prevent?potential?fire?or?shock?hazard,?do?not?expose?the?unit?to?any?source?of?excessive?moisture.
·When?the?unit?is?operating,?do?not?pull?the?DB-25S?connector?out?.?To?the?safe?of?the?unit,?turn?down?the?power?before?pulling?it?out.?
·TTL/CMOS?parallel?interface.
2、Specification?
Features：
·Low?Insertion?Loss,?High?Reliability.
·Simple?parallel?interface?control.
·Compact?modular?package.
Applications：
·Remote?fiber?test?systems.
·Fiber?network?restoration.
·Subsystem?integration.
·Test?and?measurement?equipment?manufacturing.
Optical?Specification：
·Wavelength??1310nm?or?1550nm.
·Insertion?Loss?≤0.5dB?(including?connectors).
·Return?Loss?:?SM：≥55dB；MM：≥35dB
·Cross?talk:?≤－70dB
·Switching?time?:?≤10ms(?one?channel?)
·Repeatability:?≤0.05dB