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108
CABLING LOCATIONS AND STATION
PROTECTOR (CONTINUED)
See IBM 5250 Information Display System Installation
Manual-Physical Planning, GA21-9277 for detailed
informati on.
The station protector is owned and maintained by the
customer. The following procedure can be used to
check an IBM supplied station
pro~ector.
The cables to the station protector must be
disconnected before the checks can be made. This will
disconnect the work stations from the system.
I
DANGER
Never handle cables or connectors during an electrical
storm.
Typical Installation
System/
Controller
Building
1
Work
Station
Station Protector Board
Outdoor Cable.
...... 'Station
/ /
Protector
- - - - - - - - - - 1
I
I
I
Cathode __
An
0
de---
I
<-
L ____ _
108
Glossary, Seq. -
Affected, Loc ..
" ,
" ,
Only use CE meter part 1749231. Use the R
x
100
scale.
1.
2.
Check each diode with the black lead connected to
the anode and the red lead connected to the
cathode. The resistance should be less than 2,000
ohms.
Check each diode with the black lead connected to
the cathode and the red lead connected to the
anode. The resistance should exceed 10,000
ohms.
Work
Station
Work
Station
Building
2
Work
Station
Maintenance Procedures
5256 MIM
1-11
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