Connectors
Connector types
Disassembly and repair procedures require that you disconnect and reconnect the
following connector types:
• Locking (squeeze-release): Locking connectors use a latching mechanism to
prevent accidental disconnection during assembly and use. The latch is located on
one end of a tab so it may flex and lock into place when coupled with its matching
connector. The tab provides a lever to release the latch. When disconnecting,
squeeze to provide pressure on the tab to unlatch. Some connectors have multiple
latches that require you to press multiple tabs to release.
To remove a locking connector, squeeze the release lever and remove the cable.
To connect a locking connector, push the mating pieces together until the latch locks
in place.
• Pressure: Pressure connectors use friction to prevent accidental disconnects.
To remove a pressure connector, grasp each connector mating half and pull the
halves apart.
CAUTION Do not use excessive force to disconnect the
connector. Excessive force may result in pulling the mounted
connector off the circuit board.
To connect a pressure connector, grasp each connector mating half and insert one
half into the other.
• USB: USB connectors provide communications and power connectivity between the
main board and any sub-systems and external devices. USB connectors use friction
to maintain the connection, but rarely require much force to connect or disconnect.
The USB cable can safely be removed from the mounted connector by simply pulling
it out of the connector. Two types of USB connectors are used: USB A-type and USB
mini-B.
To remove a USB connector, grasp the connector and pull.
To connect a USB connector, grasp the connector and insert.
• ZIF (zero insertion force): The device uses flex cables and ZIF flex cable
connectors. Flex cables and ZIF connectors require special care when handling.
ZIF connectors use a sliding outer piece that latches and unlatches to secure and
release the flex cable. ZIF cables cannot be successfully connected or disconnected
without properly unlatching and latching the sliding outer piece.
CAUTION Do not use excessive force when releasing
pressure on the connector. Excessive force may result in
breaking the sliding outer piece.
170 Appendices Welch Allyn Connex
®
Vital Signs Monitor 6000 Series™
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