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LNL-1000 Intelligent System Controller
13.2
The ISC Board
The ISC board contains the following components: two (2) unsupervised alarm inputs, one (1) RS-232 or
RS-485 interface, four (4) RS-485 interfaces (which can consist of four 2-wire, two 4-wire, or one 4-wire
and two 2-wire interfaces), one (1) power-in input, eight (8) DIP switches, and sixteen (16) jumpers. It also
contains a set of three (3) status LEDs and one (1) memory backup (3 volt lithium) battery.
ACDC
AC
GND
GND
IN2
GND
IN1
LITHIUM
ION 3V
BR2325
78 —
revision 7
The ISC Board
J1
A
B
C
2 MEG
PN
REV
SN
5.50 (139.7)
6.00 (152.4)
TXD
TR1+
RXD
TR1-
RT S
R1+
CT S
R1-
J8
GND
TR2+
J7
TR2-
GND
J15
TR3+
TR3-
GND
J16
TR4+
TR4-
GND
J17
TR5+
TR5-
GND
J18
S1
J5
U15
U17
U16
S T AT US LED's
DIP S WIT CHES
MEMORY PROMS
PROGRAM PROM
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