Title: Hardware Installation Guide.pdf
The ISC interfaces upstream with the Access Control software on a host system and downstream with the following field hardware components:Intelligent System Controller Communications OverviewAccess Control SystemCommunications from Host to Controller RS-232, RS-485, Ethernet Dial-up, Fiber, etc...16 Downstream Devices TotalRS-485 Multi-drop 2 or 4 wireIntelligent System ControllerDownstream Communications • Two 2-wire ports • One 4-wire portSingle Reader Interface ModuleDual Reader Interface ModuleInput/Output Control Module(s)0 1 2 3 4 5 6 7 8 9 * #Up to 16 Single Reader Interface Modules (16 Readers)0 1 2 3 4 5 6 7 8 9 * #0 1 2 3 4 5 6 7 8 9 * #Up to 16 Dual Reader Interface Modules (32 Readers)Up to 8 Output Control ModulesorAlarm Input Control Modules8.2The Intelligent System Controller Board