30
6. DATA TRANSMISSION
6-1
Classification of the Data Transmission
6-1-1 Buffer Transmission:
transmits the data stored in the Buffer Memory.
6-1-2 Channel Memory Transmission:
transmits the data stored in channel memory (battery
back-up).
6-1-3 Screen Transmission
("SEND" Function):
transmits the data displayed on the screen.
6-1-4 Echo-back Transmission:
The data from the external input (cassette tape recor–
der, hand key, microcomputer etc.) can be read and re-
sent at the same time.
6-15
Test Message Transmission:
transmits "RY", CW random signal and "QBF".
6-2
Buffer Transmission
The data from the keyboard is stored temporarily in the Buffer memory and transmitted
one by one. Buffer memory is allocated 3120 characters.
i)
When the key
ESC V
is depressed,
FUNC=V
, which indicates a hold on the type-
ahead keyboard buffer, is displayed on the screen. Release with a keyboard entry of
ESC V
.
ii)
By selecting LINE mode or WORD mode, the transmission is activated after every
line or every word (refer to 5-1-1 (3)).
iii)
The two keystrokes
SHIFT
|
SPACE
disable the Buffer Transmission and the data
in the Buffer memory is all cleared.
iv)
Miswritten data in the buffer memory can be erased while the information is still in
the Buffer memory. This is activated with the keystroke
ESC
|
DEL
(RUB OUT
function).
6-3
Channel Memory Transmission
Data in the memory is retained, even when external power is removed, when battery-back-
up cells are installed. Seven channels (256 character/channel) are provided in the battery
back-up memory. The Θ-9000E has provision for 256 characters × 7 channels. Channel 6
has 16 subsections (16 characters × 16) and channel 7 has 8 subsections (32 characters ×
8).
6-3-1 How to Program in Channel 1 thru 5 and Channels Usage
A)
In order to program a memory in Channels 1 thru 5 follow this procedure:
1. Press
TONE
·
CH
.
2. Press the desired channel number key (
!
·
1
~
%
·
5
).
3. Press
READ
·
WRITE
.
4. Enter text up to 256 characters (including spaces, CR and LF).
5. Press
SHIFT
|
READ
·
WRITE
.
Summary of Contents for Theta-9000e
Page 1: ...9000E COMMUNICATIONS TERMINAL...
Page 71: ...68 9000E BLOCK DIAGRAM...