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Carrier transceivers are designed to be used only with certain antenna products. Other higher gain directional antennas may be purchased through an approved Carrier supplier. Contact Carrier for additional information. Installation onto a CCN Bus — Use the RS-232 to RS-485 converter to install transceivers directly onto an RS-485 network. An RS-232 to RS-485 converter and power supply is supplied with each transceiver. 1. Separate the RS-485 converter’s housing with a flat blade screw driver. 2.