Motorola MT2090 用户手册
10 - 4 MT2070/MT2090 User Guide
IBM 468X/469X Host Parameters
Port Address
This parameter sets the IBM 468X/469X port used.
NOTE
Scanning one of these bar codes enables the RS-485 interface on the device.
None Selected
Hand-Held Scanner Emulation (Port 9B)
Non-IBM Scanner Emulation (Port 5B)
Table Top Scanner Emulation (Port 17)