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13
Overview of the LNL-1000
This installation guide is intended for use by technicians who will be installing and maintaining the
Intelligent System Controller.
The Intelligent System Controller (ISC) serves as the predominant access control engine. The ISC provides
power, performance, and flexibility for the most demanding applications. Multiple combinations of Alarm
Input Control Modules, Output Control Modules, and card reader interface modules can be configured.
The ISC can communicate upstream at 38.4 Kbps via RS-232, RS-485 multi-dropped configurations,
modem dial-up communications, Ethernet TCP/IP networks, or Token Ring networks. The standard ISC can
store 5,000 cardholders and 100,000 events, with expansion capabilities for up to 250,000 cardholders and 1
million events. The ISC has four downstream 2-wire RS-485 channels or two 4-wire RS-485 channels. In
either configuration you may connect up to 64 readers or 32 devices on a single Intelligent System
Controller. Each SRI, DRI, ICM and OCM takes up one device address.
13.1
Interfaces
The ISC interfaces upstream with the Access Control software on a host system, and downstream with the
following field hardware components:
32 Downstream
Devices Total
Multi-drop
2 or 4 wire
Single Reader
Interface Module
Up to 32 Single
0 1
Reader Interface
2 3
4 5
Modules
6 7
8 9
*
(32 readers)
#
Intelligent System Controller Communications Overview
Access
Control
System
Intelligent System
Controller
RS-485
Dual Reader
Interface Module
Up to 32 Dual
0 1
Reader Interface
2 3
0 1
4 5
2 3
Modules
6 7
4 5
8 9
6 7
*
(64 readers)
#
8 9
*
#
Hardware Installation Guide
Communications
from Host to Controller
RS-232, RS-485, Ethernet
Dial-up, Fiber, etc...
Downstream Communications
• Four 2-wire ports
• Two 4-wire ports
• Combination 2 and 4 wire ports
Input/Output
Control
Module(s)
Up to 16 Output Control Modules
Up to 16 Alarm Input Control Modules
77
revision 7 —
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