Service manual
Standard Functions and Parts
2–2 B.A.S.I.S. V Service Manual
FUNCTION DESCRIPTIONS
This section includes function descriptions grouped by the following
function types:
■ mortise
■ cylindrical.
Mortise functions The following lists describe how the latchbolt, deadbolt, outside lever,
and inside lever operate for each standard B.A.S.I.S. mortise function.
Figure 2.1 Understanding mortise function drawings
EV–Latchbolt with key override FV–Deadbolt with key override
Latchbolt operated by:
■ outside key
■ outside lever—unless locked
by internal motor drive
mechanism
■ inside lever
Outside lever locked by:
■ internal motor drive
mechanism operated by time–
activated electronic signal or
by valid card/PIN
Outside lever unlocked by:
■ internal motor drive
mechanism operated by time–
activated electronic signal or
by valid card/PIN
Inside lever is always unlocked
Latchbolt operated by:
■ outside key
■ outside lever—unless locked
by internal motor drive
mechanism
■ inside lever
Latchbolt deadlocked by
auxiliary latch
Deadbolt operated by:
■ outside key
■ inside turn–knob
■ outside lever when lever is
unlocked by internal motor
drive mechanism (retracts
only)
■ inside lever (retracts only)
Outside lever locked and
unlocked by:
■ internal motor drive
mechanism operated by time–
activated electronic signal or
by valid card/PIN (if deadbolt
is thrown, deadbolt override
privilege is required)
Inside lever is always unlocked
Outside Inside
Outside key
Turn knob
Deadbolt
Latchbolt
Auxiliary dead latch