
| Code in FIG. | Name | Explain |
|---|---|---|
| a | Whether have shell | ZLAN:serial device server with metal shell ZLSN:serial port to Ethernet module without metal shell |
| b | Serial port type | 2: RS232 interface 3: RS485/422 interface 5: RS232/485/422 interface |
| c | Serial port number | 0: Core module 1: Single Serial Port 4: 4 Serial Port 8: 8 Serial Port G: 16 Serial Port |
| d | Function choose | 0: Main model 1: Simple module 3: webpage download module 4: Modbus Gateway Module 9: Multi-TCP connection module |
| e | Reserved |