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- INSTRUCTIONS -
Form C Relay for 12-18V DC Intercom Systems with Door Release
WIRING DIAGRAMS:
MK-SERIES BLACK & WHITE VIDEO SYSTEM
Page 1
INSTALLATION:
1. Install in a suitable location, either near the power source for the door release mechanism, or behind the intercom.
2. Secure wire connections with proper termination, such as wire nuts or crimp connectors.
3. Trim the wires to the desired length.
4. Cut the unused contact wire so the bare strands are not exposed.
A1
A2
B1
B2
S
S
DC 18V
+
-
DR REL
L
L
MK-1GD
MK-2MCD
MK-Series
Door Station
A1
A2
PS-1820UL
+
-
.
Red
Gry
Brn
Org
Yel
COM
N/O
N/C
+ -
Use Normally Open
contact for electric strike
RY-18L COLOR CODE:
Input of Relay:
Red:L/RED, Postive trigger
Gray:(-) NEGATIVE
Output of Relay:
Brown:COMMON
Orange: N.O. Contact
Yellow:N.C. Contact
(See contact rating specs on
back page)
The RY-18L Door Release Relay Module is an interface between the door strike contacts on the Aiphone unit and the
actual release mechanism. The contact ratings on Aiphone units vary, and are all Normally Open. If your strike or
maglock is a higher voltage or draws more current than specified for the unit, the RY-18L is required. It provides either a
Normally Open contact for an electric strike, or a Normally Closed contact for a magnetic lock. The contact rating
supports a majority of door release hardware available on the market. This relay is recommended with all MK and JF
systems when using the single door release feature, and for the LEM-1DL or LEF systems when connecting a maglock.
Add
jumper
wire
from L
to +
MAGNETIC LOCK WIRING METHOD:
(Normally Closed contact)
Lock Power: Power source for Magnetic Lock
When using 12-18V DC power, use the RY-18L.
When using 24V DC power, use the RY-24L.
LE-Series Sub
1
E
+
-
EL
EL
LEM-1DL
~
~
PT-1210N
1
E
-
Leave jumper
between E and -
attached
Red
Gry
Brn
Org
Yel
COM
N/C
Use Brown & Yellow wires
when connecting to Maglock.
LOCK
POWER
RY-18L
Magnetic Lock
RED: L/RED
BLK: (-) Neg.
BRN: Common
ORG: N.O.
YEL: N.C.
+
-
LOCK
POWER