68 (119) Telephone Access System Installation and Operation Manual Version 3.7
LT-969 Copyright January 2017
5 NSL Relay Cabinet Installation and
Wiring
This chapter provides information about the NSL Relay Cabinet Installation and
Wiring.
This chapter explains
• NSL Control Unit Relay Cabinet Mechanical Installation
• NSL Control Unit and Expanders
• Wiring the TX3-NSL-8M Main Controller Board
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