Paxton PROXIMITY compact slimline - Manual (Page 5)

About 5
Locks
Fail open (fail safe)
Fail open devices require power to lock, i.e. if there is no power to the device it is unlocked. An example of a
fail open device is a magnetic lock (maglock).
A fail open locking device is a requirement for fire doors. This is because it is not reliant on electrical power
to unlock.
It is advisable to have a battery backup for systems using fail open devices. Otherwise a mains power failure
would lead to doors unlocking for the period of the mains failure.
Fail open devices are inefficient in terms of power consumption when compared to fail closed devices. This
is because they are powered for the majority of the time, i.e. when the door is locked.
Fail closed (fail secure)
Fail closed devices require power to unlock, i.e. if there is no power to the device it is locked. Most standard
electric releases are fail closed.
If battery backup is not fitted, mains loss would result in doors being locked for the period of the power
failure.
Fail closed devices are more efficient that fail open devices. This is because they are only powered when the
door is unlocked.
User tokens – choice
Users of a PROXIMITY compact system will be required to carry a user token. Paxton Access Ltd
manufactures a number of different types of token.
Proximity card
Cards are about credit card size but are thicker. They can be used from inside wallets or handbags.
Adhesive plastic stickers can be applied for photo ID and the slot in the tokens makes them ideal for use
with low cost badge clips.
Proximity keyfob
Keyfobs are for applications where convenience is important. They are made of hard plastic and will fit onto
a keyring. They can be attached to car/house keys for reduced losses, hence reducing the cost of replacing
fobs.
Proximity ISO card
ISO cards are the same size as standard bank or credit cards. They can be used with standard card printers
for photo ID. They also have a magnetic stripe that can be encoded for use with other systems such as
vending.
User tokens – photo ID
There are several photo ID options with varying degrees of cost for PROXIMITY systems.
Proximity
Proximity ID tokens can be produced in any of the following ways.
1. The PROXIMITY card photo ID pouch overlay has inserts for a passport photo and some text. This is
laminated in a standard office laminator and applied onto the face of the token with the adhesive
backing.
2. The PROXIMITY card plain overlay can be printed with graphics using the desktop card printers used
with on site photo imaging systems. They are applied to the token using the adhesive backing.
3. PROXIMITY ISO cards have the same dimensions as standard magstripe cards. This allows them to be
printed on using either a specialist bureau service or on site photo imaging systems. ISO cards are
always supplied with a blank white face for printing.
There is a small area on the bottom right hand of ISO cards that may cause printing irregularities and should
be avoided when designing card artwork. Ask for the “PROXIMITY devices datasheet” for more details.