Teletype 43 Teleprinter Basic RO, Service Manual

Page: 186 / 222

CONTROLS AND INDICATORS
This section describes the purpose and operation of
most controls and indicators on the
43 Buffered KSR.
Nearly all the operating controls are across the top
of the keyboard -those on the keyboard are described
in the keyboard section.
Places terminal in Local mode - Causes dis­
connect if terminal is on-line. TERM READY
lamp turns off. When TERM LOCAL lamp is
on and KP lamp is off, local keyboard-printer oper­
ation is possible. Lamp flashes when in the Options
Preparation mode·.
Indicator Only - Lamp lights when Data
mode is established on-line. If in Term Local
mode, depress TERM READY and with Data
mode established, lamp will light. Lamp will flash and
then go off if on-line connection is lost.
Lamp indicates terminal is ready to send or
receive but on-line connection is not estab­
lished. Depress key when in Term Local
mode to go on-line.
This key is active on-line only. Operation
of this feature is system dependent. Depres­
sion of this key may cause sending to stop
remote station. If lamp lights on a received
at the
8
=
TERM
LOCAL
interrupt, keyboard operation will be inhibited
on-line until INTRPT key is depressed (lamp extin­
guishes).
When lamp is off, terminal is operating
in Half-Duplex operation (printer copies any
send data). Lamp lights indicating Full Duplex
operation (only data received on-line will be printed)
by depressing key or, if terminal is so optioned,
(DUPLX=f) will light at power tum on or following
options load.
[;]
Lamp lights due to an alarm condition (ie,
low paper, paper-out, cover open. Depress
key to reset after clearing alarm condition
on some sets.
When lamp is on, terminal is in the S/R
(conversational) mode. The
keyboard is
actively on-line and the printer prints received
data. Depression of key turns off lamp, places KP in
Local mode even though the terminal may be on-line.
If depressed when lamp is not on and REC MSG WTG
lamp is on, will cause received message to print.