1
Contents
Introduction
3
General Description
System Overview
6
Specifications
9
Installation
Installation Requirements
Site planning
12
Electrical specifications
12
Installation Procedure
Mounting the KSU
14
Grounding the KSU
14
Connecting keysets
17
Connecting single line telephones
17
Internal music source
19
External music source connections
20
External system paging connections
20
Connecting door phone and lock control
20
Connecting PSTN lines
21
Power Failure Transfer
21
AC power connection
22
Connecting system back-up battery
22
Memory protection
22
Installing surge protection equipment
23
Before power on
23
Figures
Figure 1
KSU Layout
13
Figure 2
KSU Dimensions
15
Figure 3
KSU Connection Table
16
Figure 4
Base Board Switch Locations
18
System Programming
Levels of Programming
26
Station
26
User (Customer)
26
Technician
27
Programming Procedures
28
MMC Index
52
Содержание NX-308
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