Hochiki FNV-ISO

The FNV ISO provides DC isolation when necessary when an intelligent connection from fire alarm control panel to the HMX system is used Terminals are provided for RS 232 RS 485 from the FACP and power and serial data connections to FNV are on TS1 All is power limited and board can be snaptrack or standoff mounted Signal Isolator Board 2 1 24VDC 2 Non isolated 1 Input 2 Output 3 Isolated 1 Output 2 Input 3 of non isolated side transmits signals through TXD of side TXD of non isolated side receives signals RXD of isolated side TXD and RXD of either side will 9VDC in relation to the common connection for that when the connections are correct 1 2 Short Short Ratings 20 mA 20 mA 1 5040 Rev D 1 of 2 Village Drive Suite 100 Park CA 90621 2268 Technical Support connection detail Systems wiring connections wire clamp screw 14 18 AWG wire clamp screw 12 18 AWG wire entry terminal 18 26 AWG gauge determined by circuit load board in HMX MP panel 2 board 3 4 5 6 7 on FACP output 1 5040 Rev D 2 of 2 Village Drive Suite 100 Park CA 90621 2268 Technical Support