Serial Interface
The serial interface is not isolated. The SG (signal ground) and FG (frame ground) terminals are connected inside this product. When using a D-Sub serial interface connector, connect the FG wire to the shell.
You can switch the communication method between RS-232C and RS-422/ RS-485 via the software.
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ELECTRIC SHOCK AND FIRE
When using the SG terminal to connect an external device
to this product:
Failure to follow these instructions will result in death or serious injury.
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LOSS OF COMMUNICATION
Failure to follow these instructions can result in injury or equipment damage.
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RS-232C
D-Sub 9 pin plug connector
Pin No. | RS-232C | ||
---|---|---|---|
Signal name | Direction | Description | |
1 | CD | Input | Carrier Detect |
2 | RD (RXD) | Input | Receive Data |
3 | SD (TXD) | Output | Send Data |
4 | ER (DTR) | Output | Data Terminal Ready |
5 | SG | - | Signal Ground |
6 | DR (DSR) | Input | Data Set Ready |
7 | RS (RTS) | Output | Request To Send |
8 | CS (CTS) | Input | Clear To Send |
9 | CI (RI)/VCC | Input/- | Called Status Display +5 Vdc ±5% Output 0.25 A*1 |
Shell | FG | - | Frame Ground (common with SG) |
*1 You can switch pin #9 between CI (RI) and VCC via the software. The VCC output is not protected against overcurrent. To prevent damage or malfunction, use only within the rated current.
Recommended jack screw is #4-40 (UNC).
RS-422/485
D-Sub 9 pin plug connector
Pin No. | RS-422/RS-485 | ||
---|---|---|---|
Signal name | Direction | Description | |
1 | RDA | Input | Receive Data A (+) |
2 | RDB | Input | Receive Data B (-) |
3 | SDA | Output | Send Data A (+) |
4 | ERA | Output | Data Terminal Ready A (+) |
5 | SG | - | Signal Ground |
6 | CSB | Input | Clear To Send B (-) |
7 | SDB | Output | Send Data B (-) |
8 | CSA | Input | Clear To Send A (+) |
9 | ERB | Output | Data Terminal Ready B (-) |
Shell | FG | - | Functional Ground (common with SG) |
Recommended jack screw is #4-40 (UNC).