Gianni Industries GEM SMB-370ALU User Manual

Key switch, Statement, Gianni industries, inc

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Key Switch

Statement

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.

The connection for fail-safe lock devices:

1

2

3

4

5

6

7

8

9

0

*

#

Reader

(outdoor)

Key switch

(outdoor)

Lock Device

(fail-safe)

Power to Lock

Relay output

Com.

N.C.

Com.

N.C.

Uninterruptible

Power Supply

1

2

3

4

5

6

7

8

9

0

*

#

Reader

(outdoor)

Key switch

(outdoor)

Lock Device

(fail-secure)

Power to unlock

Re

lay o

utp

ut

Co

m.

N.O

.

Com.

N.O.

Uninterruptible

Power SupplYy

GIANNI INDUSTRIES, INC.

Copyright © Gianni Industries, Inc. All rights reserved.
DM-CA-KS Ver. L Published on 2012.05.28

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: [email protected]
Website: gianni.tw

The connection for fail-secure 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
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.

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.

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