Cable Thru Feature - IBM 5256-1 Maintenance Information Manual

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Cable Thru Feature
Some display stations and printers have the Cable Thru
feature that allows stations to be connected to one
another in a line, instead of all stations connecting
directly to the system.
Front Access Panel, Stations A and 8 - - - - - - - -......
Coming from the previous station
or system
Group of Three Address Switches
Terminator Switch (posi"tion 2)
In this example, the system cable for station C will be
coming from station 8 rather than directly from the
system.
80th stations A and 8 must have a front access panel
with three white Address switches and a blue
Terminator switch to allow this type of setup.
The Terminator switch controls the communications flow
from station to station. The switch has two positions:
Position 2 allows communications
signals to flow through the station
to the next station.
Position 1 stops the communications
signal and completes the electrical
circuit. Position 1 is the required
position when the station is the last
one on the line (station C in the example).
Rear Access Panel, Station C - - - - - - - - - - - - ,
Audible Alarm
~ ~
Volume Control
1h..rf5:
Group of Three
~(t~\
Address Switches
~socket2
.
~
\ Terminator Switch
Y\\-"': .. :.,_
~(POsition
1)
~Yl't:~..:::.----~--Socket
1:
Coming from Station 8
Note: Socket 2 would go to the next station on the line
if more than 3 were present. The last station on the line
might not have a socket 2, three address switches, and
a Terminator switch. Stations without a Terminator
switch can only be connected directly to the system, or
used as the last station on the line when connecting to
a preceding station.
Appendix 5256 MIM A-7
Appendix,
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