1057 /1058 Card Punch-Special Features - IBM 1050 Reference Manual

2. Prefix G is alternate program. Alternate program
status is retained until the end of the card.
3. Prefix H is card release. The card is released to the
stacker. Any field duplication as defined by the pro-
gram card is executed.
Function Panel
A patch panel accessible to the
IBM
Customer Engineer
permits the user to assign the function codes as a group
to perform one of the following actions:
I. Function only
2. Punch only
3. Function and punch
4. No action
Note: The function panel is functionally replaced by the
operators panel special feature when installed.
When the 1051 control unit transmits the PTT
code/6 to the 1057 /1058, for one of the functions listed
in the first column, the associated action occurs. The
specific action initiated depends on the function panel
or operator panel wiring, as indicated by the four col-
umns on the right of the following chart.
PTT CoDE/6 FUNCTION PUNCH FUNCTION
&
FoR ONLY ONLY PUNCH
Tab Skip*
x x
EOB
(Line) Skip
to Col 81
(Home) Release NA
x
EOT Release NA
x
Reader Stop NA
x
NA
Backspace NA
x
NA
Upshift NA
x
NA
Downshift NA
x
NA
CR/LF Skip*
x
x
LF NA
x
NA
Bypass
NA
x
NA
Restore NA
x
NA
Prefix F Duplicate
x
x
Prefix G Alternate
Program
x x
Prefix H
Card Release
x x
Space Space NA NA
*Skip field defined by format of the program card.
NA - Not Applicable
No
ACTION
x
NA
NA
x
x
x
x
x
x
x
x
x
x
x
x
Note: Without the operator panel installed, the EOB and EOT
codes always perform their functions.
Home-Loop Operation (function panel wired to Punch
and Function). An EOB or EOT code received from
the 1051 is punched and causes the card to release to
60 1050 Detailed Information
the stacker. Any programmed duplication takes
place.
Line-Loop Operation (function panel wired to Punch
and Function). An EOB code received at the 1057 /
1058 is punched and the card is released to Column
81 where it waits. (Programmed duplication is re-
tained.) A positive answer to an LRC from the 1051
Control Unit causes an "11" to be punched in Col-
umn 81 indicating a correct card. The card then
releases to the stacker. A negative answer to an LRC
causes the card to be released to the stacker without
an 11-punch in Column 81 (indicating an incorrect
card).
An EOT code received from the 1051 Control Unit is
not punched and does not release the card to the
stacker.
1057
I
1058 Card Punch - Special
Featu1·es
Extended Character Punching (1057 Only)
This special feature permits the 1057 to translate up-
shift as well as downshift characters from the PTT
code/6 to the
IBM
card-code, and then punch these
characters. Any shift codes encountered during trans-
lation are automatically eliminated before punching.
This feature accommodates all punched card charac-
ters in the PTT code/6 (see Figure 44).
Note: With this feature installed, the function panel of the
1057 should not be wired to punch shift codes. Refer to the
Principles of Operation-1057 /1058 Card Punch: Function
Panel.
Operator Panel
This special feature overrides the function panel :in the
1057 /8 with an operator accessible plugboard. This
operator panel also increases versatility because each
function code is individually wired and controlled.
The operator's panel is located behind the left-hand
side panel of the 1057 or 1058. It consists of four col-
umns of wiring hubs (Figure 32), with the two left-
hand columns common (code hubs). If there is no wir-
ing for· a code, it is punched, but no action is caused.
If one of the common hubs is wired to the correspond-
ing "function" hub, the function occurs. 1f a code hub
is wired to the corresponding "no-punch" hub, the code
is not punched. If both code hubs are wired, one ·to
the function hub and the other to the no-punch hub,
the function occurs but is not punched. This descrip-