Adt-security-services ADT-LCD40 Manual de usuario descargar pdf (Pagina 23)

ADT-LCD40 Series Electrical Connections DIM-485 Connections

Document 50520 Rev D 7/25/00 P/N 50520:D

1. Terminal to terminal wiring is shown between the DIM-485 and

one ADT-LCD40 Series Annunciator

2. If more than one ADT-LCD40 Series Annunciator is installed,

the 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 24)

3. The ADT-LCD40 Series Annunciators have resistors built into

the circuit board at the In (Terminals 2 & 4) and the Out (Termi-

nals 1 & 3) for impedance matching. There is no

need for the

installer to add impedance matching resistors

4. Connect wiring to DIM-485 terminals before plugging DIM-485

into connector J11 of the Unimode 200 main circuit board.

DIM-485 CONNECTIONS

DIM-485

ADT-LCD40 Series

Terminal 1 - OUT (+) P1 Terminal 2 - IN (+)

Terminal 2 - IN (+)

P1 Terminal 1

- OUT (+)

Terminal 3 - OUT (-) P1 Terminal 4 - IN (-)

Terminal 4 - IN (-)

P1 Terminal 3

- OUT (-)

Figure 4-3: DIM-485 Connections

Circuit Board

1 2 3 4

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 35 36

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Adt-security-services ADT-LCD40 Manual de usuario Pagina 23