USB To 4 Ports RS-232 Converter

Features:1.Computer interface: USB V1.1 2.0 Plug and Play.2.Operational system virtual serial port driver.3.USB to 4-Port RS-232 serial Supports Windows 95/98/Me, 2000, 2003, XP, Vista,Win7, CE, Linux ,MAC. 4.Field Interfaces: RS-2325.Transmission rate: from 300 bps to 460.8Kbps.6.Power: From the USB port or external power.7.Consumption: <300 mA.8.RS-232 protection: +15KV ESD. 600W surge protection.9.USB connection: USB B Female connector.10.RS-232 connector: DB9 male.11.Aluminum enclosure dimensions: 135 x54 x 108 mm12.Weight: 0.8Kg with USB cable13.Operating environment: -40 to 70°C, 10 to 90% relative humidity, non-condensing. RS-232 Pinout (DB9 Male DTE)PINSignal NameRS-232Signals1DCD (Data Carrier Detect)Input2RXD (Receive Data)Input3TXD (Transmit Data)Output4DTR (DTE Ready)Output5GND (Ground)Ground6DSR (DCE Ready)Input7RTS (Request to SendOutput8CTS (Clear to Send)Input9RI (Ring Indicator)InputLed Assignment: (Figure 2)NumberLEDWorking StateCH1GreenCH1 Receive DataYellowCH1 Transmit DataCH2GreenCH2 Receive DataYellowCH2 Transmit DataCH3GreenCH3 Receive DataYellowCH3 Transmit DataCH4GreenCH4 Receive DataYellowCH4 Transmit DataPWRRedPower on Power Terminals Assignment:(Figure 3) ATC-804 can get power from USB port. You should need External Power Supply if the USB port can’t offer enough power. The power supply voltage should be from +12V-24V VDC@500mA. It can connect to V1-,V1+ terminals. (Terminal V2-,V2+ is only for power input backup)