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19
Installation
To install the ISC, perform the installation procedures described in the following sections, in the order in
which they are presented.
1.
Wire the unsupervised alarm inputs for power fault and cabinet tamper monitoring.
2.
Wire the upstream host communication.
3.
Wire the downstream device communication.
4.
Wire the power input.
5.
Remove the plastic safety strip from the memory backup battery.
19.1
Wiring
19.1.1
Unsupervised Alarm Inputs: Power Fault and Cabinet Tamper
Monitors
The LNL-2000 features two alarm inputs that can be used for power fault and cabinet tamper monitoring.
These inputs are connected using the Input 2 (IN2) and Input 1 (IN1) contact terminals on the ISC board.
Input 2 and Input 1 are both simple N/C (normally closed) contact closure monitors.
Note:
If either of these inputs is not used, a shorting wire should be installed.
19.1.2
Upstream Host Communication
Configuration data and event/status reports are communicated via port 1 (primary) or port 6 (secondary), the
host ports. RS-232 interface is for direct one to one connection to a host computer port, via modem or a
plug-in ethernet module. When the ethernet module is used, port 1 must be configured as a RS-232 interface.
I/O devices are connected via port 2 through port 5.
Port 1 may be set up as a RS-232 interface or a RS-485 interface. RS-485 interface may be 2-wire or 4-wire
type.
Unsupervised Alarm Input Wiring
CABINET
TAMPER
POWER
FAULT
Hardware Installation Guide
GND
IN 2
GND
IN 1
97
revision 7 —
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