Teletype 43 Teleprinter Basic RO, Руководство по обслуживанию

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MANUAL 406, 1-5
4. KEYBOARD
4.01 The keytop arrangement is divided into three major groups according to function or purpose.
They are the operational controls and status indicators, the basic keyboard and the numeric/
edit pad.
4.02
The operational controls and status indicators for the teleprinter are briefly described in Fig. 5.
Places terminal in LOCAL mode. SD lead is Mark
Hold, RD lead is ignored, and TR lead is off.
(Kt-yboard-printer is not necessarily activf'.)
Indicator Only - All conditions art> propf'r for
communication. Terminal responds to RD lead
and may actuatE' SD lead. TR is on. This indication
is the result of the data SE"t being in the DATA
mode.
IDtenupt - DepftUin& thU key eausea termiaal
When lamp is on, terminal is in ENTER state,
keyboarded data is put in Edit Buffer and
associated controls may be used. Depressing
key toggles state. (In ENTER state, KP is
automatically placed in LOCAL. When
exiting the ENTER state, KP remains
LOCAL.) Lamp flashes at Edit Buffer full
Wbeo lamp ia on, keybouded cbaracten
are
inleried at Edit Pointer and remainder of
me_ Ia puohed down. De� key toule•
Rate. Lamp may fiub momeahdy wbea entednl:
or
ezltlntl mode. Active only In the ENTER mode.
to oend 250 ma of apaeina lliplal aDd IOIIlP ll&hto
duriDC thlo time wbeo on-line. A received Interrupt
lliaiDol ealUUlamp to 1;-.t, beD to riDa aDd oenclina
atop. Pu.ab to reHt wb.eu lamp ia on.
Depre881Da thla key place• the terminal In a
modo to accept a fltriDa of up to the lut 16
cbuacten entend when t:he lamp U on. Active
only In ENTER mode. Strlna
Ia uoed for com·
DUiaoD In SEARCH, or RETRIEVE. Second
deprellion
tuma off lamp and eslto mode.
Old lltiiD8 Ia deleted wbeD lamp comea on.
When lamp is on. terminal is Full
When off, Half-Duplex. In Half-Duplex, all
transmitted data is copied into the Receive
Buffer so that local printed copy can be
made. Depressing key toggles state.
Preu to and from Send Buffer; PIUI t:o
otop oeodina. Lamp OD,If m- Ia
wllitina to be-t. I..Dp IIIUibiD&If
aencliD&. 8eDcl until end of Send Buffer,
or optioned •-• eadlaa chuactu MD.t
or reeelved X-off or pwob key.
Lamp is on for alarm states. (Low pa)u•r,
paper-out. cover open, or in TEST modt·.)
Push to n>Set after clearing alarm condition.
When lamp is on. KP is in 8/R mode. When
off, KP is LOCAL, even though terminal
may
be on�line. Depressing key toggles state.
Lamp indicates Receive Buffer contains characters
that have not bee-n sent to printer. Depressing key
causes printing to commence (KP goes to 8/R
mode and ENTER, if on, is
t
<ited.)
When lamp is on. the function of the 14 kE·y
cluster at right side of keyboard is a Numeric
Pad as a primary function using the uppE-r
designations. When lamp is off, the lower
designations
are
active. Notice edit functions
are active when Numeric Pad is enabled only
with CONTROL or SHIFT key. Push key to
change state. Remainder of keyboard is
unaffected by NUM PAD modo.
In ENTER mode, depressing this key causPS
the- contents of the Edit Bufft>r to
be cleared
from the- Edit Pointer to the- next messagt>
�nding character.
Fig. 5-Qperational Controls and Status Indicators