Viconics VWG-50 (Classic ZigBee) Installation Guide - Manual (Page 13)

13 | VWG-50-Installation Manual
RS485-BACnet™ MS-TP wiring.
An RS485, optically isolated port uses a 3-position, screw terminal connector and always
operates as COM2. Wire to this connector with shielded 8-22 AWG wiring (refer to the
TIA/EIA-485 standard). The screw terminals (from left-to-right) are shield, plus (+), and
minus (–).
The supplied ferrite in the VWG packaging needs to be installed on the MS-TP
wire in a specific way for FCC compliance. Place MS-TP wire into the provided ferrite
as shown in diagram below and make sure to follow the placement dimension. Close and
snap the ferrite casing as shown.
Wire MS-TP cable into MS-TP RS-485 connector.