IBM System /360 Operating System
,
Basic Telecommunica
tions Access Method
, GC30-2004; or
IBM System /360 Disk
Operating System
,
Basic Telecommunications Access
Method,
GC30-5001.
Operator Guidance Panel Mask.
The customer makes the
guidance panel mask (overlay) to suit his own needs. The
mask can be made by photographic processes or by standard
office copying equipment using heavy-duty projection trans
parency paper. Figure 12 shows various lettering effects
that could be used in a guidance panel mask.
Full-size guidance panel templates are included at the
end of this manual to aid in laying out the masks. The num
bers within the boxes identify the lights as they are refer
enced by the transaction list macros. The nomenclature for
the Release transaction switch, the Select Transaction light,
and the operational indicators should be included on each
guidance panel mask.
Operational Indicators
The third section of the guidance panel consists of the
operational indicators: On Line, Repeat/Clear, In Process,
and Card In Card Reader.
On Line Indicator.
Indicates that the area station is opera
tional. The area station is operational as a result of:
1. Power on
2. Area station synchronized with system controller
and unit not bypassed
3. System controller available to receive data.
Note:
If the 2715 system controller is in a “stop 2790
input” status, but available for write operations to the
loop terminals, a dash symbol is displayed in the visual
display. The dash is displayed in the first position to the
left of the high order time digit. The dash alerts the
operator that the 2715 is not available to receive data,
but can send data to 1053 Printers on the loop.
4. CE Mode switch on CE panel in operator position
5. CE Transaction switch off
6. Area station not in diagnostic mode.
In Process Indicator,
illuminated following the 2715’s
acceptance of the first data entry of a multiple-entry trans
action. The indicator remains on until the entire transaction
is complete.
Card In Card Reader Indicator.
Notifies the operator that
a card has been inserted into the card reader. The card will
not return until either the data has been accepted or the
Clear key has been pressed.
Area Station Addresses
The area stations are assigned addresses when they are in
stalled. The area station (AS) addresses are (80 hex)
through (E3 hex). The AS sends its address with each data
entry. Each device tied to an AS has a preassigned device
address as follows:
Keyboard . . . .
Digital Device Read-In
1035 Badge Reader .
1053 Printer . . .
2791 Data Entry
The area station data entry varies according to which device
entered the data. Figure 13 shows the data entry for each
device.
Adapters
2795/2796 A ttachments
Two DEU attachment features, 2795/2796 Attachment
Basic and 2795/2796 Attachment Additional, provide for
attaching up to 32 data entry units. The 2795/2796
Attachment Basic, which provides for attaching the first
eight DEU’s, is an optional feature for the 2791 Model 1
and a standard feature for the 2793. The 2795/2796
Attachment Additional, which provides for attaching addi
tional DEU’s in up to three groups of eight, is an optional
feature of both the 2791 Model 1 and the 2793.
The DEU attachment (adapter) provides the scanning
to select any one of the 32 possible data entry units re
quiring service. The adapter services the devices on a
blocking basis—that is, one device at a time until the mes
sage is completed. Upon completion of a message from a
DEU, the scan continues until another device requires
service. The operation is then repeated. The adapter de
codes and generates the input-device address, decodes the
control code, and generates the proper control-response
characters. The DEU attachment accepts data from the
DEU and translates the data to the proper hexadecimal
character for transmission to the 2715. The valid character
set is limited to decimal numerics 0 through 9 and blank.
1053 Printer Attachment (Optional on 2791 Model 1 and
2793)
The 1053 Printer Attachment (adapter) allows the connection
of one 1053 Model 1 to each area station. The adapter de
codes and generates the device address, decodes and acts
upon the control code, generates the proper response char
acters, and accepts EBCDIC characters from the transmission
line and translates them to the tilt/rotate code for the 1053
Printer operation. This adapter will translate 44 EBCDIC
uppercase characters (see Figure 14). The adapter also
.
. . . (80 hex)
.
. . . (84 hex)
.
. . . (88 hex)
.
. . . (8C hex)
. . . . (81-83 hex)
.
. . . (40 hex)
. . . . (C0-DF hex)
20
Summary of Contents for 2790
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