Title: Hardware Installation Guide.pdf
The SRI provides a vital link between the Intelligent System Controller (ISC) and the card reader attached to the interface. As many as 32 SRI modules can be multi-dropped using RS-485 two-wire communication up to 16,000 feet (4000 per port) away from the ISC. Each SRI module is individually addressed for increased reporting capabilities with Access Control software applications. The SRI includes two (2) programmable inputs that support normally open, normally closed, supervised and non-supervised circuits and two (2) output relays support fail-safe or fail-secure operation.The series 2 board differs slightly from the series 1 boards. Where series 2 is indicated, the information only applies to series 2 boards. Otherwise, the information applies to both series 1 and 2 boards.61.1InterfacesThe Single Reader Interface Module interfaces upstream with the Intelligent System Controller, and downstream with a card reader.Intelligent System Controller Communications OverviewAccess Control System