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Master Station with Selective Door Release
TC-10MD 10-Call Master TC-20MD 20-Call Master
- SUPPLEMENT TO TC-M INSTRUCTIONS -
The TC-MD Intercom and Selective Door Control System is designed for communication between a central master
station and remote door stations. The TC-MD adds door release to the standard TC-M system. All information
regarding installation other than the external control functions is included in the TC-M instructions. In addition to
communication to remote locations, the Master Station can selectively release the corresponding door strike or
maglock.
WIRING DIAGRAM: SYSTEM USED FOR SELECTIVE DOOR RELEASE
Individual Components for System:
TC-nMD Master station with selective contact output capability (10, 20)
RY-PA Relay for selective output (1 per station requiring external contact)
PS-1820UL 18V DC, 2A Power Supply
TB-AD1 1 Audio Door Adaptor
TB-AD10 10 Audio Door Adaptor
TB-ADM10 10 Video Door Adaptor
IMPORTANT:
1. RY-PA must be used for each selective contact to
isolate AC voltage from the intercom circuit.
2. Extra contact connections and L are on the
external terminal block.
Pg. 1
TC-MD TERMINAL DEFINITIONS:
+ Power input (18V DC or 16V AC)
- Negative
1~10 Station number
E Common communication
M,C Master-to-Master communication
T Transmit to door station
R Receive from door station
S, S Output to call extension speaker
SEPARATE TERMINAL BLOCK LOCATED INSIDE MASTER:
1~10 (20) Selective negative for each channel
L Common Positive output for selective closure
TC-10MD
+
-
PS-1820UL
TB-AD1
For Door #9
1
2
IE/IF Door
Station
1
2
N
T
R
+
-
1
2
N
T
R
+
-
1
2
3
~
9
10
E
T
R
12+
12-
M
C
AC/
DC
Input
TB-AD1
For Door #10
1
2
IE/IF Door
Station
Door Release button
Located below
TRANSFER button.
TC-20MD
x x
RY-PA
#1
RY-PA
#9
RY-PA
#10
BLK
BLK
BLK
YEL
YEL
YEL
Relays are activated
when the door
release button is
being pressed while
a station button is
selected.
Momentary Closure for Station #1
To convert RY-PA to N/C (normally
closed) contact: Move one yellow wire
from "NO" to "NC". (Internal
modification, soldering required.)
AC Power
for Door
Releases
Common for each closure
Momentary Closure for Station #9
Momentary Closure for Station #10
1
~
9
10
L