Edition 12/2005
Terminal
Description
B
Request-to-Exit input 1
E
Request-to-Exit input 2
M
Common REX inputs
R
N/C Contact door
C
Common
T
N/O Contact door
V1,V2
Varistor
ST1
Jumper for reset
S,S
Tamper Switch output
N
O
T
I
C
E
D
E
M
O
N
T
A
G
E
E
T
D
’
U
T
I
L
I
S
A
T
I
O
N
This device comes with a varistor.
The varistor must be connected to the strike terminal
(electromagnet…) operated by the device.
If this product works with many strikes, each of them
should have a varistor.
The varistor controls the overload produced by the strike
coil – self-effect.
If you are using a « Shear Lock » electromagnetic lock, it is recommended to
use a separate power supply than the one connected to the
DG502U
!
Warning
Do not use a switching power
supply because of the interference
radiation that may disturb the
reading of the badges
Ne pas utiliser d’alimentation
à découpage à cause de
rayonnements parasites pouvant
perturber la lecture des badges.
PB1
PB2
C
R
T R C T S S B M E 1 2 3 4 5 6 12 V 12
1
2
3
4
5
6
7
8
9
0
#
RL1
RL2
12 3
ST1
…
V1
strike
Input voltage
12VAC/DC
V
M
A
G
N
E
T
V2
DG502U/A
DG502U/P
2-DOOR CONTROLLER
500 USERS
