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© 1996 Radionics, Inc.
Unauthorized Access or a Door Left Open event.
Door Contact Monitoring (Easikey 1000 Plus Only)
The Easikey 1000 Plus can monitor door contacts and can generate the following
events:
If someone forces a door open, the door controller can create an
Unauthorized
Access
alarm.
If someone leaves a door propped open, the door controller can generate a
Door
Left Open
warning.
In addition, when you use door contacts with the system, you can cause the door
controller to clear remaining Lock Release Time when the door closes after
someone passes through.
Connecting the Door Contact
Connect the door contact so that it is normally closed. When the door is open,
the switch should open. When the door is closed, the switch should close.
The normally closed door contact connects to the Easikey 1000 Plus door
controller between the DC and V- connections. Refer to Figure 5 for the door
contact connection.
To help prevent false alarms:
Keep reed switches away from magnetic fields, like those causes by magnetic
locks. This is a particular problem with metal door frames.
Make sure that the contact does not operate if the door moves in its frame.
Make sure the door closer causes the door to latch closed and lock after someone
passes through.
Reader Tamper Detection (Easikey 1000 Plus Only)
The DC connection provides a Reader Tamper Detection function. Reader
Tamper is detected when the SIG line breaks at the same time as DC connection
is opened. This is achieved whether or not a door contact is installed. To provide
full protection of the cable and reader, terminate the DC wire at the reader's -V
terminal (see Figure 5).
Reader Tamper detection doesn't work while the door is unlocked:
Reader Tamper detection does not operate when the door is manually unlocked,
automatically unlocked by a Time Profile, or while the door is unlocked with a
key/card or RTE.
Lock Outputs
Install all locks according to the manufacturer's instructions.
The EK1000 provides a lock output for each reader channel. These outputs
provide 12 VDC output at 1 Amp each.
A 1 Amp Fast-Blow fuse is located next to the door connector. The fuse protects
each locked output from over draw or short circuit.
