Section 5 - Gateways5-25Wiring the RF GatewayTo wire the RF gateway, perform the following steps:Step Action1 At the control unit, make sure the power switch is in the "OFF" position.2 Run the buses as required and make sure to appropriately tag them. Limit each RS-485bus to a single wire run.Note: It is important to appropriately tag the cables so they can readily be identified.This is especially important if troubleshooting becomes necessary at some future date.3 Run the cable through the side opening of the housing unit. Cut the cable and removeenough sheathing and insulation from each wire to allow fastening under the pressureplates of TB1.4 Measure the resistance between the black and red conductors (the (+) lead of the meterto the red conductor and the (-) lead to the black conductor). A reading of less than 12ohms indicates a short on the power conductors. Make the necessary corrections beforeproceeding.5 Connect the RS-485 cable to TB1 of the gateway. Identify terminal wires so that theproper wires can be connected to each terminal. See Figure 5-16.6 Connect the RS-485 bus cable to the control unit (see table below).Wire Gauge/Color Function RS-485 #1TerminalRS-485 #2Terminal#19 AWG Blue RS-485 17 21#19 AWG Yellow RS-485 18 22#16 AWG Red + 12VDC Power 19 23#16 AWG Black DC Return Power 20 247 Remove jumper P1 unless the RF gateway module is to be located at the end of the RS-485 bus; in that case, leave the jumper on.Installing the RF ReceiverInstallation Guidelines• The receiver can detect signals from transmitters within a nominal range of 200 feet. Take thisinto consideration when mounting the receiver.• Mount the receiver in a high, centrally located area for best reception. Do not place the receiver onor near metal objects or inside a metal cabinet.• For maximum range, the receiver should be at least 10 feet from the control panel or any remotekeypads to avoid interference from their microprocessors.• If two RF receivers are used:• Each must be at least 10 feet from the other, as well as from the control panel and remotekeypads.• Using two receivers does not increase the number of RF points that the system can support.• In Canada, the 5882H receiver must be used.
