User guide
VII. 2-Door Interlock “C” Setup
Follow the installation steps below before applying power to the UR2-4.
Refer to the INTERLOCK “C” MODE wiring diagram on Page 10.
NOTE: It is assumed that the UR2-4 and locking hardware share the
same power supply.
Interlock “C” Standard Operation:
Both doors are normally closed. One door will be normally locked, and
the other door will be normally unlocked.
Unlocking/opening the locked door will lock the unlocked door, until the
unsecured door returns to its normal state. Opening the unlocked door
will make the locked door incapable of being unlocked, until the opened
door returns to its normal state.
The locked door may be accessed by activating the Access Control
System or a remote release. The door unlock time will be determined by
the Access Control System and by Dip Switches 2-1 through 2-4 (See
Step 1).
Step 1 – Set Dip Switches
The dip switch settings below are an example of a typical Interlock “C”
setup as shown on Page 10. Adjust the dip switch settings as needed.
Step 2 – Configure the Relay Outputs to be Wet
(Voltage) or Dry.
Use the red WET/DRY Selection Jumpers to configure each output.
Refer to Page 2 of this instruction for selection procedure.
On the typical Interlock C wiring diagram, the Lock Relays (Outputs 1 & 3)
are configured to be wet outputs. The Monitoring Relays (Outputs 2 & 4)
are dry.
NOTE: It is recommended that any unused relays be configured as dry
outputs.
Step 3. Terminate the Lock Power Wiring
Follow the typical Interlock “C” wiring diagram for fail-safe or fail-secure
locks. Be careful to observe lock voltage polarity.
NOTE: All low voltage wiring shall be 18-gauge minimum. The minimum
lock power wire gauge shall be determined by the SDC wire gauge chart.
Signal wire shall be 22-guage minimum.
Step 4. Terminate the Access Control and Door
Monitoring Inputs
Connect the Door Monitoring Switches to input terminals A1 & B1. This is
a required connection.
Connect Access Control or remote release to input terminals A2. This
connection is ONLY required for the normally locked door.
Door Monitoring and Access Control inputs should be dry, Normally Open
or Normally Closed switches, depending on the configuration of Dip
Switches 2-5 and 2-6, respectively.
NOTE: Dip Switch 2-5 configures the normal state of the Door Monitoring
input when the door is in a CLOSED and/or LOCKED position.
Step 5. Terminate Optional Inputs and Outputs
Auxiliary Inputs – These inputs must be wired to dry, Normally Open
switches. The input will only be active when closed (shorted). Refer to
Page 2 for input descriptions.
Monitoring Relay Outputs – Each door station provides a non-fused,
SPDT monitoring relay. This output may be used to signal a Security
Panel or to activate a Remote Annunciator. The relay is configurable as a
Wet or Dry output (Step 2). The relay activation will follow the Lock Relay
or follow the Door Monitoring Input, depending on the configuration of Dip
Switch 2-7 (Step 1).
Step 6. Connect a 12 or 24VDC Power Source to the
UR2-4 Controller.
Before applying power, verify that all the connections are securely
terminated by gently pulling on each wire.
Terminate the voltage wiring to the Controller Power Input. Be careful to
observe polarity.
Verify that both doors are closed & apply power to the controller.
Step 7. UR2-4 Controller Startup and Operation
Verification.
Verify the polarity of the Access Control & Door Monitoring Inputs by
observing the Status Lights located on the lower right of the UR2-4
controller.
Status Lights A1 & B1 will be OFF if Dip Switch 2-5 = OFF, or will be ON
if Dip Switch 2-5 = ON.
Status Light A2 will be OFF if Dip Switch 2-6 = OFF, or will be ON if Dip
Switch 2-6 = ON.
Test the standard operation of the interlock by accessing the locked door
or by opening the unlocked door(s). The other door will be incapable of
being opened/unlocked until the accessed door returns to its normal state.
SW1 -1 = ON {ON = Doo r 1 - Lo cked}
SW1 -2 = OFF {OFF = Do or 2 - Unlocked}
SW1 -3 = OFF
SW1 -4 = OFF
SW1 -5 = OFF
SW1-6 = OFF
SW1-7 = OFF
SW1-8 = OFF This switch must be set OFF fo r Interlock "C" M o de
SW2-1 = ON
SW2-2 = OFF
SW2-3 = OFF
SW2-4 = OFF
SW2-5 = OFF
Sets the polarity o f the Do o r M onitoring Inputs when the doo r
is in the CLOSED position. {OFF = N/O; ON = N/C}
SW2-6 = OFF
Sets the polarity o f A ccess Co ntrol Inputs when the switch is in
a normal (resting) state. {OFF = N/O; ON = N/C}
SW2-7 = OFF
Sets the operation of all the M o nito ring Relay Outputs.
{OFF = Relay will fo llo w the Do o r M o nito ring Input;
ON = Relay will fo llo w the Lo ck Output Relay}
SW2-8 = ON
Switches the UR board between Interlo ck M o de or Co ntrol
M ode. This switch must be set ON.
SW2-1 through 2-4 set the unlock time of the Lo ck Relay fo r
the Do o r 1.
N O T E : This is in addition to yo ur A ccess Co ntro l System
unlock time.
SW2-1 ON = 5 sec., OFF = 0 sec.;
SW2-2 ON = 1 0 sec., OFF = 0 sec.;
SW2-3 ON = 20 sec., OFF = 0 sec.;
SW2-4 ON = 30 sec., OFF = 0 sec.;
Switch times are additive. {All OFF = 1 sec.; A ll ON = 65 sec.}
P:\INSTALLATION INST\Power Supplies\INST-UR\INST-UR2-4.vsd REV 12-11 Page 11
P:\INSTALLATION INST\Power Supplies\INST-UR\INST-UR2-4.vsd REV 05-11 Page 10
ACCESS
CONTROL
OR
REMOTE
RELEASE
DOOR
MONITORING
(DPS or BAS)
DOOR #1
DOOR #2
DOOR
MONITORING
(DPS)
FAIL-SECURE
LOCK
(12 OR 24 VDC)
FAIL-SAFE LOCK
(12 OR 24 VDC)
+
+
-
-
DOOR
#1
LOCK
FAIL-SECURE
LOCK
(12 OR 24 VDC)
FAIL-SAFE LOCK
(12 OR 24 VDC)
+
+
-
-
DOOR
#2
LOCK
Monitoring
Relay
Output
(Optional)
Monitoring
Relay
Output
(Optional)
INSTALLATION NOTES:
1. Access Control & Door Monitoring circuits are
configured to be OPEN when the door is closed & locked.
2. All Lock Relay Outputs (1 & 3) have been configured as
wet (voltage) outputs. Lock output voltage will be the
same as the UR2-4 input voltage.
3. Both doors require Door Monitoring Inputs. Only the
Normally Locked door requires an Access Control Input.
4. Monitoring Relay Outputs (2 & 4) have been configured
to follow the Door Monitoring Input.
LOCK
ALL
(Optional)
UNLOCK
ALL
(Optional)
EMERGENCY
RELEASE
(Optional)
LOCKOUT
(Optional)
+
(-)
1 2
3 4 5 6
7 8
1 2 3 4 5 6
7 8
SW1
SW2
W
D
W
D
FUSE
W
D
W
D
FUSE
Interlock
“C”
Mode
(
-
)
N
O
N
C
C
(
-
)
N
O
N
C
C
(
-
)
N
O
N
C
C
(
-
)
N
O
N
C
C
OUTPUT 2
OUTPUT 4
OUTPUT 1 OUTPUT 3
C A1 C A2 C B1 C B2
C E1 C E2 C E3 C E4
12/24 VDC
POWER
SUPPLY
SDC 600
Series
+
-
POWER