MicroPower development FC - 701 is a high quality and low price of RS232 / RS485 interface converter, realize RS232 signals to RS485 seamless transition.Using a serial port (RTS, DTR) with intelligent power technology, external power supply do not need it.
Feature:
1. User can freely choose power supply mode: 1, using a serial port (RTS, DTR) with intelligent power technology, without external power supply; it can be directly introduced from the power of the DB9 pin 5 ~ 7 v power supply, increase the output power.
2. data transfer rate adaptive, covering 0 ~ 115 KBPS (related to communication distance), end-to-end communication, using port power way, 36 KBPS rate can communication 1200 m;9600 BPS rate can communication 3800 m
3. data flow direction control, without other control signal;
4. interface conversion completely transparent, all work done automatically, adapt to all software;
5. suitable for all ports, and single chip microcomputer serial port can also be used;
6. using the slope limit differential drive, make to minimize electromagnetic interference, at the same time can reduce transmission line terminal mismatch caused by reflection, thus it can reduce the requirement for transmission line matching.
7. Thermal shutoff protection;
8. ESD resistance voltage can reach ±8 kv, especially suitable for outdoors or industrial site communication;
9. Without delay.
Appearance:
The shapes of FC - 701: DB9 - DB9;
Dimensions : 62.3 mm * 33.0 mm * 16.8 mm
Pin Introduction:
Female Port（232）：
PIN | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
TAB | CD | PxD | TxD | DTR | GND | DSR | RTS | CTS | RI |
Male Port（485）：
PIN | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
TAB | V+ | NC | GND | NC | NC | A | NC | NC | B |
Usage:
Power supply mode can be chosen by the user: port power mode, external power supply mode.RS232 port use zero Moden works.
1. port mode of power: RS232 port must provide DTR and RTS signals (positive and negative electricity average).
2. external power supply mode: any pin can be made of the following 5V input voltage
