
III. ~~ONAL DES~ON
A.
*itches and L~s on Front of Receiver
.-
1. ~/~AL -itch (and L~).
This pushbutton controls the message
display/prfiting mode.
Each time the button is pushed, it ~itches tO
an ‘Outn or ‘Inn position.
a.
b.
~ (Wt) Position: In the AUTO mode, messages are displayed
(and printed) as quickly as they are processed. In this mode, the
No. 685 is ncmally used with a printer, since the display my
change rapidly when nany messages are being received. This node
pemits the No. 685 to operate at maximu throughput.
-AL (In) Position: The MANUAL mode is intended for use when a
printer is not available and messages are stored in the intern~”
memoq of the 685 until the operator chooses to display thin.
This allws time for the message already being displayed to be
copied dwn manually.
Note: Up to 113 messages can be stored (14 per line card,
plus one additional).
The L~ located to the left of the AUTO/MANUAL mitch is used to
indicate that the MANUAL mode is being used. This LED will
always be lit when the witch is in the WAL (In) position.
There are circumstances in which the NO. 685 wfil switch to the
MANUAL mode. These are:
-
1)
2)
3)
4)
5)
6)
Note:
AUTO/MANUAL mitch in NANUAL position, or
Both PRN-OFF and OFF-COM DIP =itches in oFF position,
or
Printer fault with the printer ON, or
AC power failure with “Auto ACn option (see Section
VI B 6) not selected in PROM, or
Computer failure with OFF-COM DIP sitch in COM
position and PRN-OFF DIP -itch OFF, or
Computer failure with OFF-COM DIP witch in COM
position, MANUAL Mode on Computer Failure option
selected and Printer ON.
Operation of :he AUTO/MANUW mitch w31 cause a qst~
message to be generated (See Section N E 2).
2. VAL~/ti &itch: Each time this button
is pushed, it -itches to am
‘Outn or ItInn position.
a. VAL~ (@t) Position: Ody messages that are considered Validn
(@o successive identical tran~issions, or propar parity for
single tran~ission/checksm verified messages) will be printed.
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