Station Protector Service Check - IBM 5280 Technical Newsletter
Distributed data system / programmable data station
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Also See for 5280:
- Manual (292 pages) ,
- Programmer's manual (187 pages) ,
- User's setup manual (169 pages)
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715
STATION PROTECTOR SERVICE CHECK
The station protector must
be
installed at each exit and
entry point on the twinaxial cable when that cable
enters or exits a building.
The station protector is owned and maintained by the
customer. The following procedure can be used to
check an IBM-supplied station protector.
The cables to the station protector must
be
disconnected
before the checks can be made. This will disconnect the
printers from the controller.
DANGER
Never hold or touch cables or connectors during an .
ele.ctrical storm.
Station Protector Board
I
I
I
I
------------,
L ____ _
715
Use only CE meter part 1749231. Use the Rx 100 scale.
1.
Check each diode with the black lead of the CE
meter connected to the anode and the red lead
connected to the cathode. The resistance should
be
less than 2000 ohms.
2.
Check each diode with the black lead connected
to the cathode and the red lead connected to the
anode. The resistance should exceed 10000 ohms.
Printer
115
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