https://www.ptc.co.ir/sometext/host-system-interfaces/usb-keyboard-wedge-rs232-ibm-46xx-rs485-2/ 2017-06-03T11:37:23+00:00 https://www.ptc.co.ir/sometext/host-system-interfaces/multi-interfaceincludes-rs232-ttl-5v-4-signalskbwusb-hid-keyboard-serial-ibm-oem-rs-232c-%c2%b112v-and-ibm-rs485-supported-via-adapter-cable/ 2016-05-12T06:43:14+00:00 https://www.ptc.co.ir/sometext/host-system-interfaces/usb-rs232/ 2015-09-26T12:26:36+00:00 https://www.ptc.co.ir/sometext/host-system-interfaces/usb-rs232-keyboard-wedge-ibm-46xx-rs485/ 2015-07-30T05:47:47+00:00 https://www.ptc.co.ir/sometext/host-system-interfaces/usbkeyboardwedgers232ibm46xx-rs485/ 2016-05-08T11:37:12+00:00