Galaxy Flex Installer Manual Appendix G: Peripherals219RIO wired zone/output expanderA RIO wired zone/output expander provides 8 programmable zones and 4 outputs.Note: A Power RIO can be fitted in place of a RIO.The RIO requires 12 V d.c. (range 10.5 V to 16.0 V) and 40 mA. This can be supplied fromthe control panel power supply or from a remote power supply if the distance causes a largevoltage drop on the cable.Wiring1. On a keypad, enter engineer mode before connecting the RIO.2. Connect the RIO terminals as follows:RIO terminals Connection point+12 V control panel, keypad or remote power supply–0 V or ground control panel, keypad or remote power supplyA A terminal of the previous module on the line or control panel if the RIO is thefirst on the lineB B terminal of the previous module or control panel if the RIO is the first on thelineNote: If the RIO is the last module on the line, connect a 680 Ω EOL resistor acrossthe A and B terminals.ConfigurationTo configure the RIO in the system, exit from engineer mode. If the message XX ModAdded [<],[>] To View is displayed, the system has recognised the module. Press A or B toconfirm that the RIO has been added. If the message is not displayed or the RIO is not onthe list of added modules, then it is not communicating with the control panel or has been setto the same address as a RIO already connected to the system.The flash rate of the red LED (LED 1) indicates module to panel communication status.Flash rate (secs) Meaning0.1 on / 0.9 off Normal communicationsOff No d.c. supply1.5 on / 1.5 off RIO has not been configured into system0.2 on / 0.2 off RIO has lost communication with system0.9 on / 0.1 off Very poor communicationsZonesThe RIO has eight programmable zones that default to INTRUDER. Each zone is DoubleBalance monitored with a 1 kΩ resistor in series with the zone detector and a 1 kΩ (1%)resistor in parallel across the detector switch. The change to 2 kΩ (1%) resistance registersthe zone as open/alarm.