Nabu 1100 System Technical Manual page 169

5. NUMERIC AND FUNCTION KEYS (OPTION KB1)
A numeric pad and function keys are added to the keyboard
layout. This option is most useful for data entry applications
and terminai requirements where user definable key
commands are necessary. Twelve function keys appear as
the top row of keys on the keyboard. These 12 keys issue the
following ASCII Control Codes:
PF1 CTRl A (SOH) PF7 CTRl R (DC2)
PF2 CTRl B (STX) PF8 CTRl T (DC4)
PF3CTRl C (ETX) PF9 CTRl \ (FS)
PF4 CTRl D (EOT) PF10 CTRl I (GS)
PF5 CTRl E (ENO) PF11 CTRll\ (RS)
PF6 CTRl F (ACK) PF12 CTRl - (US)
APPENDIX D
ACCESSORIES
CURRENT lOOP ADAPTOR CABLE (CI04-2M)
To operate the terminal in a current ioop, a current loop
cable (P/N CI04-2M) must be ordered with the terminai. This
cable contains an interface which connects the EIA levels to
current loops. The cable is plugged into the 25-PIN SERIAL
DATA connector. Current loop terminations do not appear
directly on a rear panel connector. The Voltage-Current
conversion circuitry is located within the cable.
CURRENT lOOP SIGNAL DEFINITION
A marking condition Is indicated by a current flow of 20mA.
A spacing condition Is indicated by a lack of current flow.
The least significant bit is the first data bit during
communication.
RS232C DATA COMMUNICATIONS CABLE (CEOl-2M)
Terminal to data set cable, 2 metres in length. This cable
carries the signals between pins 1, 2, 3, 4, 7, and 20.
MAC
Modem and coupler. Designed for data communications
over standard phone lines at rates to 300 baud. Modem
circuitry is located in the external acoustic phone coupler.
Plugs into SERIAL DATA connector using an RS232C
Terminal to Dafa Set cable (Part No. CE01-2M)
MTI
Multiple Terminal Interface. Small compact SWitching box
connects up to five terminals to one serial printer. Anyone
at tive terminals is selected by a front panel rotary switch.
BRI
Bar Code Reader Interface. Connects Monarch Marking
System 2243 parallel scanner to the terminal via the
auxiliary parallel input option, OPTION PIP.
Rev. 3
APPENDIX E
INTERNAL SETTINGS
BACKPLANE BOARD (BAC-1):
It is possible to operate the terminal on a line voitage of
230VAC (+ or - 20V) or 115VAC (+ or - 10V). At either
voltage the frequency may be 50 or 60 Hertz. The video
refresh is not affected and this is separately adjustable.
At the rear left corner of the main printed circuit board
(when viewed from the front), two pairs of terminal posts can
be seen. For 230V operation the b!ack/yellow and the
black/white wires should be connected to the posts marked
"230". For 115V operations, these wires should be
connected to the posts marked "115".
CONTROL BOARD (CON-1):
At IC (Integrated Circuit) location G6, six jumper pairs
provide for the following features:
LABEL FEATURE
TSP When installed, this jumper permits normal
operation in the transparent (or tape) mode. When
not installed, the terminal will not display the
control codes.
FOX When Installed, RTS is held high (ON) in FUll
Duplex, but operates norma!ly in HALF Duplex.
Both FDX and RTS jumpers should not be installed
at the same time.
RTS When installed, this jumper ties the RTS signal high
(ON state). Without it, RTS is controlled by the
terminai. Do not install both RTS and FDX jumper
straps.
SPC When installed, the NO PARITY position at the
PARITY switch produces a SPACING condition.
Otherwise, NO PARITY produces a MARKING
condition.
Fill Jumpering this pair causes a fast screen fill of the
last character typed on the keyboard.
RPT Jumpering this pair causes the last character typed
to repeat at the maximum rate allowed by the
BAUD RATE setting.
DISPLAY BOARD (DIS-2)
On the Display board, in IC location G4, there are four
jumper pairs. These can control the following features:
LABEL FEATURE
FLASH/STDY When installed, the cursor will flash. Without
the jumper, the cursor will remain stationary.
L1NE/BlK When installed, the cursor is an underscore.
Otherwise it is a solid block.
50/60 When installed, the refresh rate of the video
is 50HZ. When not installed, the refresh rate
is 60HZ. This rate should correspond to the
power line frequency.
REV/NORM When this jumper is installed, the screen
display consists of black characters on a
white background. When not installed,
normal video, i.e. white characters on a
black background, is effected.