NX-10 Expander Installation Guide
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Chapter 8 Setting up the NX-535
Overview
The NX-535 voice module reports alarm events to designated phone numbers using pre-recorded
voice messages. You record the voice messages using a normal analog telephone. When an alarm
event occurs, the control panel establishes a telephone connection with a specified phone number and
informs the NX-535 voice module to report configured events.
The NX-535 voice module can send four types of voice message in a report:
• A leader message announces the report.
• An event message describes the event(s) that have occurred.
• An address message identifies the premises reporting the event(s).
• A kiss off message confirms receipt of a kiss off digit.
The voice module informs the panel when it is finished reporting and the panel closes the connection
with the phone.
Installing the NX-535 voice module
The NX-535 voice module must be connected to the NetworX bus on the control panel, and its audio
tap must be connected to the audio tap on the NX-10 board with the audio cable. If the NX-534E
listen-in module is used, the dual audio cable should be used to connect both modules to the audio
tap on the NX-10 board. Pay attention to the PIN1, which should be connected to the white wire of
the audio cable at both boards. Improper connections will cause the dialler of the control panel or the
NX-535 to malfunction.
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