Transparency Switch - GE TermiNet 300 Programmer's Manual

Programmer's Manual GEK-J5002
TRANSPARENCY SWITCH
The
transparency option is
a
front panel switch.
When used, the effect of this switch is to allow the
transmitting or receiving of non- USASCII codes.
This TRANSPARENCY switch is used with" either
a tape reader and pWlch or with an auxiliary device
that uses non-USASCII codes. All decoding is in-
hibited. Remote control of the punch or reader is
not possible but a received "Break" will stop a
transmitting tape reader.
TABLE 5
AUXILIARY DEVICE INTERFACE REQUIREMENTS
INPUTS FROM AUXILIARY DEVICE
All - AI7 7 data bits
AlB 8th or parity bit
AISWOP Strobe for data to which TermiNet is to add
parity bit
AISWIP Strobe for data where IB is to be used as
8th bit
AUXRDY Auxiliary device ready signal
AINH Inhibit printing and control fWlction decoding,
permit punching and transmitting
OV Isolated signal ground
OUTPUTS TO AUXILIARY DEVICE
ASTIN
ATON
ATOFF
This signals auxiliary device to present
new data
Turnon-the Escape sequence (ESC
K
or k)
provides a momentary signal to turn
auxiliary device on
Turnoff-the Escape sequence (ESC L or 1)
or receipt of a break provides a momentary
signal to turn auxiliary device off
*
One Baud Bit: one bit time at the data transmission rate.
18
MINIMUM DURATION
Open Loop: One baud bit*
+
48 mIcro-
seconds after strobe begins
Closed Loop: Until 15 microseconds after
ASTIN begins
15 microseconds
15 microseconds
15 microseconds
Static
Static
MINIMUM
DITRATION
One baud bit
12 microseconds
12 microseconds