Key switches are installed in secure locations outside wired, in parallel or series with the power supply
and the electromagnetic lock. If the electromagnetic lock cannot be opened due to failure of the proximity
reader or other incidents, the user can switch between normally closed (N.C.) and normally open (N.O.)
contacts by the key, forcing the door to open. This acts as a backup to access control systems.
Uninterruptible
Power Supply
Relay output
Uninterruptible
Power SupplYy
Com.
N.O.
Com.
N.C.
Reader
(outdoor)
Com.
N.C.
Key switch
(outdoor)
The connection for fail-safe lock devices:
Ex: The electromagnetic locks. Please connect the Com. and
N.C. of the key switch in series with the power supply and the
electromagnetic lock. If the electromagnetic lock cannot be
Lock Device
(fail-safe)
Power to Lock
opened due to failure of proximity reader or other incidents,
the user can switch to N.O. contact by the key, forcing the door
to open.
The connection for fail-secure lock devices:
Please connect the Com. and N.O. of the key switch in
parallel with the power supply and the electric lock. If the
electric lock cannot be opened due to failure of proximity
reader or other incidents, the user can switch to N.C. contact
by the key, forcing the door to open.
The product is warranted against defects in material and workmanship
while used in normal service for a period of 1 year from the date of sale
to the original customer. The GEM policy is one of continual development
and improvement; therefore GEM reserves the right to change specifications
without notice.
GIANNI INDUSTRIES, INC.
No. 13, Zhongxing Rd., Tucheng Dist., New Taipei
City 236,Taiwan (R.O.C.)
Tel: 886-2 2267 7986 / Fax: 886-2 2267 9876
E-Mail: inquiry@gianni.com.tw
Website: gianni.tw
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