The SN75C185DW can support data rates up to 100 Mbps.
Yes, the SN75C185DW can be used in a multi-point bus configuration, but it requires an external bias resistor to ensure proper operation.
To ensure reliable operation in a noisy environment, it is recommended to use a shielded cable, keep the cable length as short as possible, and use a common-mode choke or ferrite bead to filter out electromagnetic interference (EMI).
The maximum cable length that can be used with the SN75C185DW depends on the data rate and the type of cable used. As a general rule, the cable length should not exceed 10 meters at a data rate of 100 Mbps.
The SN75C185DW can be used in either a half-duplex or full-duplex configuration, depending on the application requirements.