Converter rs232 to rs485 for Card Access Control Systems

Converter rs232 to rs485 for Card Access Control Systems

Advantage

1.?three?kinds?of?indicators?light?the?data?traffic?communication?situation?in?time, ?support?the?transformation?of?RS-232?to?RS-485.

2.?the?internal?ciucuitry?of?converter?can?automatically?sense?the?direction?of?data?flow?and?enable?to?control?itself?by?automatic?switching.

3.RS-232?interface?is?connected?to?the?computer?by?a?DB9?female?connector;?the?connection?of?RS-485?is?through?a?DB9?connector?or?by?the?six?terminals

4.Widely?used?in?industrial?automation?control?systems, ?card?access?control?systems, ?leave?without?pay?parking?lot?systems, ?
Automated?banking?systems, ?bus?fare?system, ?, ?attendance?management?systems, ?highway?toll?station?systems, ?etc.?

Specification

Product?Model:?EA-04

Product?Dimension?:93mm×23mm×62mm

Working?Voltage?:??DC9V

Interface?Feature:?compatible?with?RS-232C, RS-485;

Electrical?Interface?:?RS-232?interface?, ?DB9?hole?connector, ????

???????????????????????RS-485?interface?, DB9(?pin?)?with?6?interminals;

????Transmission?Distance?:?0-1.8?Kilometers

Transmission?Speed?:300-115?2KBPS?,

Signal?LED?:?3?LED??(TXD, RXD, POWER)；

Protection?Class:?with?1500W??surge?protecion?

.Working?Environment?:?0℃-50℃

Working?Humidity?:?5%?to?95%;