Reference Guide

Table Of Contents
3-2
PDT 6800 Series Product Reference Guide
Communications
For terminals being used in a direct communications (batch) environment or a Spectrum One
network environment, applications are transferred from a host computer to the terminal:
!
over a communications line using a null modem connected to the cradle
OR
!
through the PC Adapter.
The procedure uses the SENDHEX program on the host computer and the Program Loader
function (from Command Mode) on the terminal.
Programs are stored in the terminals nonvolatile memory (NVM), also called the application
EEPROM.
Note: For details on the SENDHEX program, refer to the Series 3000
Application Programmer's Manual.
Other software may be used in place of the SENDHEX program.
Downloading the Program
To download the program, initiate the communications software on the host computer and
terminal as described in the following sections.
Note: To cancel communications at any time during the session, press
CLEAR on the terminal. The session stops immediately.
Communications parameters specified on the host and the terminal
must match. These parameters typically are:
38400 bps
7-bit parity
Odd parity
Xon/Xoff flow control
To program the EEPROM, the terminal must be connected to the
host through a cradle, CCM 38/6860, or PC Adapter with PIM.