Chapter 2. Installing The; Installation Overview - Comdial DX-80 Technical Manual

2. INSTALLING THE DX-80
Proper installation of the Comdial DX-80 is essential to assure optimum system operation. You must
follow these procedures to reduce system problems resulting from improper installation and to reduce
the potential of experiencing problems while bringing the DX-80 on-line.

2.1 Installation Overview

The following steps provide an overview of the installation process. Details on each of these steps are
contained in the following sections of this chapter. Be sure to read the detailed instructions before
installing the DX-80.
1. Plan the installation, including the KSU1 or KSU1 and KSU2 and Main Distribution Frame
(MDF) location, station locations, cable runs, and optional equipment.
2. Assemble the correct tools and supplies: UTP telephony grade cable/wiring, miscellaneous
telephony hardware, 66 blocks, modular wall jacks, etc.)
3. Run the wiring for speakerphones, DSS consoles and analog devices (FAX machines, modems,
etc.) from the MDF to each location. Wiring topology is referred to as "star-wiring" configura-
tion; no cable should loop from one telephone location to another.
4. Run cable/wiring to any optional equipment, such as external paging equipment, loud bell sig-
naling devices, music sources, etc.
5. Mount the MDF backboard and attach the terminal blocks on the backboard. Use a dedicated
MDF with 66 block wiring field to promote full serviceability of the system and connections
using proven techniques. If you route extension cables into the KSU, you have to terminate one
cable pair into standard crimping modular connectors for each cable.
Although you can route the extension cable/wiring directly into the
DX-80 KSU1/KSU2 housing and connect directly to the appropriate
interface module (408M, DPM8, APM4, COM4, CPM), Comdial does not recommend
this method since it makes it difficult to service the system.
6. Mount the KSUs on the MDF backboard, using the mounting template provided.
7. Ground the KSU1 (and KSU2 if applicable) to a known "good" earth ground.
8. Install optional expansion modules (COM4, DPM8, APM4) inside the KSU as required.
9. Install optional features modules (AAM, 7270C, 7271C, or MDM) inside the KSU as required.
10. Install the telephone instruments and any optional telephone equipment, such as headsets or
single line telephones.
October, '03
DX-80 Installation & Maintenance
CAUTION
Comdial 39