First, use Boshi ultra-high-speed opto-isolated RS-232/RS-422 converter (G422HA) used to implement the conversion of optical isolation between the RS-232 and RS-422. Boshi only electronic three-way isolation in RS-232 and RS-422 the DB-9/DB-9 adapter box size conversion rates up to 500Kbps! 2012 new G422HA improved over the previous generation: 1, the highest rate increased to 500Kbps; 2 RS-232 - external power supply - RS-422 three to isolation; 3, isolation voltage increases to 5000V; 4, the temperature range of lowest to -40 ° C! Second, the hardware installation G422HA shape to DB-9 (hole) / DB-9 (pin) size. G422HA DB-9 hole end directly extrapolation to DB-9-pin RS-232 port. G422HA the other end of the DB-9-pin, and with the plug terminals. Software products without any initialization settings! Only used RXD (closing), a TXD (hair), GND (ground) signal can be coupled with a unique internal zero delay automatic transceiver conversion technology, sure that it is suitable for all! The, performance Description G422HA ultra high-speed RS-232/RS-422 converter isolation voltage 5000V, communication speed to ensure the highest 500Kbps. G422HA the operating temperature range is -40 ℃ to +80 ℃. Attention to the characteristics of the product: G422HA both ends - DB-hole end of all RS-232 signals (including RXD, TXD, GND) between all RS-422 DB-9 pin end signal isolation, and any one end middle 5V power supply is isolated, that is a three-way isolation on each side of the isolation voltage is 2500V. G422HA need an external 5V power supply (voltage 4.5 to 5.5V, the power consumption is less than 50mA), complete with miniature switching power supply products. G422HA with unimaginable high level of integration to achieve a near-perfect performance: communication rate 0-500Kbps, 2,5000 V high-speed optical isolation, 3, the RS-232 - 5V power supply - RS-422 three-way isolation 4, has a two-way external drive capability, 4, built-in 600W anti-lightning surge protector. The two-way external drive capability of the G422HA showed: RS-232 client can external RS-232 port and drive a variety of passive (and active) user instrument Boshi RS-232/485 converter. Five outline drawing and pin assignment G422HA the DB-9 pin pin assignments are as follows (with terminal block): DB-9 Pin 1 2 3 4 5 defines + Y (hair +)-Z (hair -) GND-B ( the resumption -) + A (closing +) 115.2Kbps over the communication alone, plus the terminating resistor between the AB.