The LNL-3300 Intelligent System Controller (ISC) by Lenel is
designed for advanced access control applications. As the
access control engine for the OnGuard® system, the ISC
provides power and functionality. The ISC can communicate
to the host computer in a single- or dual-path configuration
of Ethernet, dial-up or direct connect RS-485 communication.
Multiple combinations of Input Control Modules, Output
Control Modules and Card Reader Interface Modules (up to 64
devices) can be configured.
Utilizing its native Ethernet communications and an advanced
32-bit processor, the LNL-3300 can communicate upstream
to the host computer through its primary Ethernet port,
with throughput up to 8 times greater than the fastest serial
connections.
The secondary port can communicate at up
to 115.2 Kbps using 2-wire RS-485 multidrop, dial-up, or an
Ethernet daughterboard connection.
The LNL-3300 can store up to 500,000 cardholders in nonvolatile flash memory, and supports selective download for
larger cardholder databases.
The two downstream RS-485
2-wire ports can be used to connect up to 64 devices (64
doors) in many combinations of LNL-1100, LNL-1200, LNL1300, LNL-1320, LNL-500B, and LNL-500W modules.