ABUS Technologies RS485-USB Converter - Manual (Page 5)

ABUS TECHNOLOGIES INC.
5
RS485-USB
3. DIMENSIONS
4. CONNECTIONS
The appropriate connection to the RS485-USB depends on the type of serial
network: RS422, 2-wire RS485 or 4-wire RS485. The following figure shows a
description of all RS485-USB connection terminals.
A shielded twisted-pairs cable is recommended for wiring the communication
bus from the converter to all network devices. The shield should be grounded and/or
connected to the common terminals of all devices. The minimum recommended wire
gauge is 24 AWG (0.2 mm
2
).
Use of a wire connecting all devices common terminals is highly recommended. Damage of the
networked devices may result if this recommendation is not followed.