I want to make a cable for Avery scale based on this:
The interface is based around RS232-C interface standard with hardware handshaking disabled.
The interface has full duplex operation and uses only two signals; transmit data and receive data. In addition to these signals a ground connection is required. The EPOS is defined as the DCE terminal, the scale as the DTE.
The DTR line is held active by the scale at all times. This line is used by the EPOS to determine whether the scale is connected.
+--------+Transmit Receive +---------+
| | +---------------------------------------> | |
| |Receive Transmit | |
| EPOS |<------------------------------------------- | Scale |
| | DTR | |
| DB9 |<------------------------------------------- | DB25 |
| | Ground | |
| |<-----------------------------------------> | |
+--------+ +---------+
Can any one help me with diagram
Thank u a Lot
