Title: Hardware Installation Guide.pdf
Configuration data and event/status reports are exchanged with the host via port 0, 10BaseT/100BaseTX Ethernet interface or port 1, RS-232 interface. Additional I/O devices are communicated to via the downstream communication port, 2-wire RS-485. It supports 32 downstream devices.The LNL-2220 has an on-board reader interface device capable of supporting up to two readers. A Bioscrypt reader can be connected directly to the LNL-2220 (this does not count as one of the 32 downstream devices).revision 6 — 141LNL-2220 Intelligent Dual Reader Controller28.2The IDRC Board