IBM System/34 Maintenance Manual page 537

45-527 IBM 5255 Display Stations
Ensure that Section 1 and Section 2 of the IBM 5255
Display Station Model 1 Setup Procedure, GA09-1624, or
IBM
5255
Display Station Model
2
Setup Procedure,
GA09-1627, have been completed for all 5255 Display
Stations that will be used on the system that you are
installing.
If the IBM 5255 Display Station will be used as the
system console, it must be connected to port 0 on the
5340. The twinaxial cable that is included in the
System/34 shipping group is to be used to attach the
system console. All other 5255 Display Stations must
be connected to ports 1 through 3, or to another display
station or printer (5225 or 5256) that has the Cable Thru
feature installed.
Note: The IBM 5255 Display Station can be used only
when work station control expansion C is installed.
To attach a 5255 Display Station as the system console:
1. Connect the twinaxial cable from port 0 on the
cable tower in the 5240 System Unit (see Figure
45-6) to socket 1 on the system console.
2.
If the system console does not have a terminator
switch or any address switches as shown in • of
Figure 45-10, the installation of the system
console is complete.
3. If the system console has a group of four
switches, and a second cable socket (Cable Thru
feature is installed), set the switches as shown in
o
and
e
of Figure 45-10.
To attach a 5255 Display Station as a work station other
than the system console:
1. Connect a twinaxial cable from port 1, 2, or 3 of
the 5340 to socket 1 of the display station. This
cable may also come from the output socket of
another work station (display station or printer)
that has the Cable Thru feature.
2.
3.
If the display station does not have the Cable Thru
feature, it must be the last work station on the
port.
Note: Each work station connected to the same
port must be assigned a different address (address
7 is not valid for the 5255). Because a display
station without the Cable Thru feature has station
addresses of 0, no other work station attached to
the same port can be assigned an address of O.
If the display station has the Cable Thru feature,
set the switches as assigned in the Work Station
Network Diagram and described in
G, .'
and
e
of Figure 45-10.
26 45-527
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