RTS XCP-ADAM-MC Bedienungsanleitung PDF herunterladen (Seite 15)

DSI-2008 Installation 11

Bosch Security Systems, Inc.

User Manual

F.01U.193.295

Rev. 05

Other 2-wire Audio Connection

1. Use the J1A connector on the back of the DSI 2008 to connect one 2-wire line to the System A hybrid. Use the J1B

connector to connect a second 2-wire line to the System B hybrid. The pin configuration for the J1A and J1B connec-

tors depend on whether you are connecting a balanced or unbalanced 2-wire line, as follows:

NOTE: TW systems must provide termination on the audio channel.

There are two (2) possible configurations for unbalanced connection:

2. On the DSI 2008 front panel, set the CHAN SEL switches as follows:

• Balanced Configuration: set the CHAN SEL switches to the BAL position.

• Unbalanced Configuration 1: set the CHAN SEL switches to position 1.

• Unbalanced Configuration 2: set the CHAN SEL switches to position 2.

FIGURE 3. Using a JB-2 Junction Box to split a 2-channel Audiocom cable into two 1-channel cables.

Balanced Configuration

Pin 1 No Connection

Pin 2 Balanced Audio + Input/Output

Pin 3 Balanced Audio - Input/Output

** Termination 300 

Unbalanced Configuration 1

Pin 1 Audio Common

Pin 2 Audio Input/Output

Pin 3 No Connection

** Termination 200 

Unbalanced Configuration 2

Pin 1 Audio Common

Pin 2 No Connection

Pin 3 Audio Input/Output

** Termination 200 

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