User's Manual
15 : (-) GND (Common Ground)
A grounding point of the keypad that is common to terminal 2.
16 : DOOR SENS N.C. (Door Position Sensing Input -- Normally Close)
A Normally Closed (N.C.) sensing point referring to (-) ground, with the help of a normally closed
magnetic contact monitors the open or close status of the door. It initiates the following functions for
the system. Connect it with jumper to (-) Ground if not used.
a) Door Auto Re-lock
b) Door Forced Open Warning
c) Door Propped-up Warning
d) Inter-lock Control
e) Door Opening Alarm
17 : O/P 1 INHIBIT N.O. (Output 1 Inhibit Control Input – Normally Open)
A Normally Open (N.O.) sensing input point for controlling the Output 1, with this terminal
connecting to (-) ground, the Egress Button, the group of User PINs and Cards for Output 1 are
all disabled. It is prepared mainly for the cross wire connection with the “Inter-lock O/P” point of
the partner keypad in an Inter-lock system.
NOTE: The inhibit function does not govern the Duress Codes and the Super User Codes. They are
18 : INTER-LOCK O/P (Inter-lock Control Output)
An NPN transistor open collector output with maximum power rating of 24VDC/100mA sink. It is OFF
at normal condition and it switches to (-) ground immediately for the first 5 seconds after keying in
a valid User Code or reading a card to operate Output 1, then, it will keep tying to (-) ground during
the Door Position Sensor is open circuit due to door opening. Use this output point to make cross
wire connection with the partner keypad’s “O/P 1 Inhibit” point in an Inter-lock system to prevent
both doors can be opened at the same time.
An Inter-lock System:
An inter-lock system is a two-door system that always allows only one of the doors to open during
the operation. While one of the doors is opened, the other door keeps close until the open door is
re-closed. It prevents the unauthorized people dashing into a protected area while the doors are in
use.
An inter-lock system needs two keypads and two door position sensing switches for the two doors.
The system immediately re-locks the door after it is re-closed before the end of the programmed
time for output 1. It prevents unwanted “tailgate” entry.
The keypad generates “door forced open” warning and alarm instantly once the door is forced to
open without a valid user Code, Card or egress button. The warning lasts as long as the time
programmed (1-999 sec). It can be stopped with an User Code or card for output 1 at anytime.
See programming Location 80 for the details.
The keypad generates propped-up warning beeps (does not activates alarm output) while the
door is left open longer than the allowable time programmed. The warning will last as long as the
door is open until re-closed. See programming Location 81 for the details.
The inter-lock control output always goes to (-) while the door is open, which gives signal to
disable the partner keypad in an inter-lock system. See the Inter-lock terminal 18 description for
more information.
Door Opening Alarm is designed for the emergency door only. It is always given when the door
is opened unless a valid user code or card is used prior to the door is opened. See programming
Location 91 for the details.
DA-2801DA-2800
Connection Terminal
The Split-decoders (Optional)
-
AL
ARM O/P
-
KEY ACT O/P
-
N.O
.
-
COM
-
N.C.
-
N.O.
-
COM
-
N.C.
-
N.O.
-
COM
-
N.C.
-
T
AMPER
-
GND(
-
)
-
DOOR SENS
-
O/P 1 INHI
B
-
INT. LOCK
-
DU OUT
-
DOOR BELL IN
-
EG IN
-
DATA I/O
-
KEYPAD PWR
-
GND(
-
)
-
12-24V DC
OPEN COLLECTOR OUTPUT
OPEN COLLECTOR OUTPUT
1A RELAY DRY CONTACTS
FOR AUXILIARY CONTROL
1A RELAY
DRY CONTACTS
FOR AU
XILIARY CONTROL
5A RELAY
DRY CONTACTS
FOR DOOR STRIKE
OPEN COLLECTOR OUTPUT
OPEN COLLECTOR OUTPUT
INPUT/OUTPUT FOR SPLIT-DECODED SIGNALS
POWER OUTPUT FOR KEYPADS
COMMON GROUND
POWER INPUT FOR SYSTEM
N.C. SW
COMMON GROUN
D
N.C. SW
N.O. S
W
N.
O. SW
N.O. S
W
OUTPUT 1 OUTPUT 2 OUTPUT 3
always valid.
Standard DecoderDecoder with RF Remote Control