Fire-Lite Alarms LCD-40 Series Manual page 21

LCD-40 Series Electrical Connections
Figure 4-3: DIM-485 Connections
Circuit Board
Terminal 1 - OUT (+)
Terminal 2 - IN (+)
Terminal 3 - OUT (-)
Terminal 4 - IN (-)
1. Terminal to terminal wiring is shown between the DIM-485 and
2. If more than one LCD-40 Series Annunciator is installed, the
3. The LCD-40 Series Annunciators have resistors built into the cir-
4. Connect wiring to DIM-485 terminals before plugging DIM-485
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DIM-485 CONNECTIONS
DIM-485
one LCD-40 Series Annunciator
wiring to the DIM-485 In (+) Terminal 2 and In (-) Terminal 4
will be from the last installed annunciator (refer to Figure 4-4 on
page 22)
cuit board at the In (Terminals 2 & 4) and the Out (Terminals 1 &
3) for impedance matching. There is no need for the installer to
add impedance matching resistors
into connector J11 of the MS-9200 main circuit board.
Document 50327
firealarmresources.com
1 2 3 4
LCD-40 Series
P1 Terminal 2 - IN (+)
2
P1 Terminal 1 - OUT (+)
P1 Terminal 4 - IN (-)
2
P1 Terminal 3 - OUT (-)
Rev D1 1/14/99 P/N 50327:D1
DIM-485 Connections
3
21