Instruction manual

Introduction
025-9416 5
and voice paging features provide personalized messaging and a professional sound that cust-
omers can easily appreciate (DAPT XTRA only).
MANUAL USAGE
Understanding what the manual is saying helps you to install, program, and troubleshoot your
system more quickly and easily. This section orients you on the way things are presented, so that
we can “speak the same language.” Descriptions follow of the way things are identified through-
out the manual, and where to find what you are looking for quickly and easily.
Organization of Sections
The manual is split into several sections so that you can find the exact information you need and
any related topics. The sections are organized as follows:
Specifications
This section lists the detailed operating characteristics and hardware specifications of the Model
640.
Hardware Overview
This section provides an introduction to the hardware components that make up the Model 640
paging terminal. Each board (standard and optional) is described and illustrated to help familiar-
ize you with the system. This includes locations and settings for all jumpers, potentiometers, and
external interfaces.
Communications Setup
This section describes how to link an office computer to the paging terminal. This provides an
easily accessible communications link to the paging terminal to simplify the hardware installa-
tion described in Section 5.
Installation
This section describes how to install and setup the Model 640. Section 5 covers installation of
the radio station (transmitter and receiver) and telco connections. Adjustment procedures are also
described in this section.
Adjustment Procedures
This section describes how to adjust many of the hardware components for optimum perform-
ance. The procedures include communications with the telco trunks and radio station equipment.
Optional Equipment Installation
This section describes how to install each of the optional boards and interfaces available for the
Model 640. This section can be used to add field-upgrades, verify factory-installed boards, or
familiarize the technician with the components installed in the paging terminal and the entire
system architecture.