Risk Of Service Loss - Nortel Passport 15000 Hardware Installation And Maintenance

56 Chapter 2 Safety considerations and best practices

Risk of service loss

241-1501-240 5.2S2
WARNUNG
Schäden oder Verletzungen durch Elektrizität
Wenn die Leistungstrennschalter an einem
Trennschalterkopplungsmodul (BIM) oder im
zuführenden Stromkreis geöffnet bzw. Sicherungen aus
dem Stromkreis entfernt werden, decken Sie den
Trennschalter oder den Sicherungssteckplatz mit
Klebeband ab. Das Klebeband signalisiert, daß er/sie
manuell ausgeschaltet und nicht vom System ausgelöst
wurde. Damit verhindern Sie eine versehentliche
Aktivierung der Stromversorgung, besonders beim
Hantieren mit Netzkabeln.
• Passport hardware parts can be unexpectedly heavy and awkward to
install. Personal injury or equipment damage can occur if the equipment
is dropped or bumped.
The following items provide an overview of common service loss risks when
working with a Passport switch:
• If a card is moved between rooms with very different levels of
temperature and humidity, allow the card to acclimatize for at least one
hour before installation. Condensation on a card can cause card failure.
• Unspared FPs, including FPs configured with intra-card LAPS (port-to-
port sparing on a single FP), will experience a loss of service on any
active ports for the time it takes to replace the FP.
• Whenever you install an FP that uses a control cable, in a sparing
configuration, you must always insert the FP into a slot on the shelf
before you connect the control cable. If you connect the control cable
between the FP and the termination or sparing panel before you insert the
FP in the shelf, you can disrupt service to the other FP(s) in the sparing
configuration.
• Before seating an FP in its slot or removing it from the slot, ensure that
the cables on the faceplate are disconnected. Otherwise seating a cabled
FP may cause a traffic loss on the active FP.