Aiphone C123LW Supplemental Instructions User Manual

							901020816
C-D C-ML/A
2
E
1
E
+
–
L
L
1NP
PT
-1210N
SKK-620C
EL-12S
EL-12S
C-D C-ML/A
2
E
1
E
+
–
L
L
1NP
PT
-1210N
SKK-620C
EL-12S
EL-12S
C-123LW Supplement
Pg. 1
The C-123LW Dual Master ChimeCom set provides chime, communication, and door relea\
se for one door and two 
inside locations. This supplemental instruction manual addresses many of the additional functions and modifications for 
the Chime Com system, including installation and troubleshooting informa\
tion.
C-123LW Supplemental Instructions
Dual Master ChimeCom System
- REFER TO INSTALLATION MANUAL INSIDE C-123L/A BOX FOR STANDARD  INSTALLATION INFORMATION -
MASTER STATION:
C-ML/A:   Master station with door release button (Normally Open)
COMPATIBLE DOOR STATIONS: (Weather resistant, made for outdoor use)
C-D    Surface mount, included in C-123L/A and C-123LW kit
LE-D   Surface mount, plastic door station (replacement for C-D)
LE-DA     Flush mount in 2-gang box, stainless steel cover
LE-SS-1G  Vandal resistant, 1-gang flush mount, stainless steel
LE-SS/A    Vandal resistant, 2-gang flush mount, stainless steel
LE-SSR    Vandal resistant, 2-gang flush mount, stainless steel, red mushroom button
LS-NVP/C  Vandal resistant, 3-gang flush mount, white powder-coat finish
OPTIONAL COMPONENTS & ACCESSORIES:
RY-AC/A   External signaling relay (Requires 12VDC power supply)
DAK-2S    Dual master adaptor kit (2component modules)
    (1 kit per 2 master stations. Use 2 DAK-2S for up to 4 total master stations)
SBX-1G    Surface mount box for LE-SS-1G
SBX-2G    Surface mount box for LE-SS, LE-SSR, LE-DA
SBX-NVP  Surface mount box for LS-NVP/C
EL-12S    Door strike (for interior wood frame doors only)
PT-1210N  AC 12V Transformer (used for door strike)
SKK-620C   6V DC power supply (1 per C-ML/A master)
822202    2 conductor, 22AWG, Shielded wire for up to 245’, (500’ and 1000’ boxes)
821802    2 conductor, 18AWG, Shielded wire for up to 590’, (1000’ box)
  Install two separate runs of this cable, one for the intercom and one fo\
r    
    the door release.
DOOR RELEASE WIRES MUST BE IN A SEPARATELY JACKETED CABLE FROM THE INTERCOM WIRING.
C-123LW Set contains:
2 C-ML/A, 1 C-D, 1 DAK-2S
Power source and Door Strike not included.
2 cond. shielded for intercom
C-123L/A Set
LE-SS-1G LE-DA
LS-NVP/C
LE-SS
DAK-2S
(2 component modules per kit)
Separate 2 conductor for door release
C-D C-ML/A
SKK-620C
Power 
Source 
for Strike(or 4 “C” batteries installed in 
the master). Do not use both 
power sources.  Ground wire 
must be tied to earth ground 
when using the SKK-620C.
IMPORTANT: Connect wires  before applying power.
EL-12S, not included with the C-123L/A or C-123LW set.       
						

							Please read and understand all 
instructions before installation.
IMPORTANT:  Connect wires before applying power.
SKK-620C SKK-620C
SKK-620C SKK-620C
C-123LW Supplement
Pg. 2 WIRING DIAGRAM: Dual Master Chime Com System with DAK-2S Dual Master Adaptor
OPERATION NOTES:
1.  Only one master can be used at a time.
2.  If both masters are activated, a feedback (squeal) will be heard t\
hrough the system when either TALK button is pressed.
3.  If feedback occurs, wait approximately 15 seconds, or until the mast\
ers turns off automatically.  At that time,  
     communication can continue normally.
INSTALLATION GUIDELINES:
1.    Run 2 conductor wire from the door station to the first master, then continue to the second master.
2.    Install the units at the desired locations. (Do not install stati\
ons back to back on opposite sides of a wall.)
3.    Separate SKK-620C power supplies or four “C” batteries are required for each master station. 
4.    DO NOT install both a power supply and batteries at any one master.
5.    Install the bare wire leg of the component module directly onto th\
e “1” terminal of the C-ML/A’s. 
6.    Attach the wire coming from the “1” terminal of the C-D to the col\
ored wire end of the component modules at both masters. (The component
       modules will easily fit inside the space available.)
7.    Connect the “E” terminals between the door station and maste\
r stations.
8.    If door release is included, use a separate 2-conductor wire from \
the “L” terminals of the masters through an AC transformer and to the door strike.
9.    The EL-12S is designed for a standard wood framed door, and for light to medium usage. If a different type of door is in place, install a strike 
       appropriate for the door.
10.  The door release button on the master station is a “Normally Open” contact closure for an electric strike. See page 3 for modification to “Normally 
       Closed” if a magnetic lock is used.
IMPORTANT!!!
Each master 
REQUIRES an SKK-620C power supply, or 4 “C” batteries.
  (Do not install both on one C-ML/A.)
1
E E
- 1
L
L +
E
- 1
L
L
+
4 C-ML/A Master Stations with 1 Door
Note: In a multi-master system, all masters only talk to the 
door station, and only one master can be on at a time
C-D C-ML/AC-ML/AC-ML/A
C-ML/A
Component 
Module Component 
Module Component 
Module Component 
Module
C-D C-ML/A
SKK-620C C-ML/A
SKK-620C
Component  Module* Component 
Module*
EL-12S
1
E E
- 1
+ E
- 1
+ 1
E
- 1
+
E
-
+
* Install bare wire end to the “1” terminal
(DAK-2S contains two component modules)  
						

							1
E
E
- 1L
L
+ -RY-AC/A
BELLSKK-620C
IMPORTANT:  Connect wires  before applying power.
C-123LW Supplement Pg. 3
WIRING DIAGRAM: LEM-1DL System with External Signaling using RY-AC/A Relay
+
MODIFICATION INSTRUCTIONS: 
C-ML/A with Door Release contact Modified to Normally Closed (for Magnetic Lock)
Normally Open Dry  Contact to door 
strike and powerComponent Module*
If a DAK-2S is not available, install components as shown below.
Capacitor: 25V, 15-33ufd Non-polarized
Diode: 1N4148 Output of RY-AC/A (Yellow 
wires) provide a momentary 
dry contact closure while 
the call button on the door 
station is being pressed.
12V DC power 
supply
NOTE: Negative of 
power supplies must be 
tied together.
C-ML/AComponent  Module*C-D
White
Red
Black
Power source for bell
To 1 of C-D and WHITE 
wire of RY-AC/A To 1 of C-ML/A
Magnetic locks require Normally Closed 
contacts, keeping power applied to the 
magnet to keep the door locked, and 
breaking power to release the door. These 
instructions explain how to change the 
contact in the C-ML/A to Normally Closed.
1.  Remove back chassis of C-ML/A 
     and move the PC-754 board aside.  
     Black door release switch will be visible.
 
2.  On the switch, move* the wire from 
     the NO contact (middle position) to 
     the NC contact (top position).  
     *Desoldering and resoldering is required.
 
3.  This modification will change the 
     door release button’s function to 
     Normally Closed, to be used with 
     magnetic lock device. 
4.  Switch contact rating is 1A at 50V AC.
+
-
60H- 2A
8
THA1547
Door releas e
switch
COM NONC
C-ML/A Rear View with PC board removed. 
						

							INSTALLATION TIPS:
1.  Use shielded wire for the communication path, and ground one end of \
the shield to an earth ground.
2.  Run intercom wire at least 20” away from AC wiring, fluorescent lights or dimmer switches. 
3.  Keep intercom cable away from alarm, data, phone, video cables, and \
any other potential source of 
     interference.
4.  Door release wires must be in a separately jacketed cable from the i\
ntercom wires. Use two separate                
     cables; one for audio and one for door release.  
5.  When installing a second master station, wire must be run from the first master station, not from the          
     door station. See diagram on page 2. 
6.  Do not install the master station near light switches, dimmer switch\
es, or other devices that may cause    
     interference with the intercom system. 
7.  Do not install the master station on the opposite wall from the door\
 station. If the units are too close,          
     acoustical feedback may result.
TROUBLESHOOTING GUIDE:
Aiphone Corporation
www.aiphone.com
[email protected]
(800) 692-0200C-123LW Supplement Pg. 4
#90102 0816
PROBLEM POSSIBLE CAUSESOLUTION
No call in from door to master, but 
communication works fine. Reversed DAK-2S component module.When door calls in, it shorts the #1 terminal to the E terminal.  
If the DAK-2S is installed backwards the chime from the 
door call-in will not be heard.  Install the DAK-2S component 
module with the bare wire under the 1 terminal, and the door 
station 1 wired to the colored wired end of the DAK-2S.
When the talk button is pressed, the other 
master rings. Missing or reversed DAK-2S 
component module.Install the DAK-2S component module as described above 
and shown on the dual master instructions.
When the talk buton is pressed, feedback is 
heard at both masters. Common power supply.If both C-ML/A’s share the same power supply, a ground loop 
feedback will occur when the talk button is pushed. Install a 
separate power source for each master.
Unit appears dead; No functionality Terminals 1 and - crossed+/- are on left column, E/1 are on right column. If swapped, 
unit will appear dead. Verify that 1 from the door station is 
connected to 1, and negative of power supply is connected to -.
System squeals and batteries get hot Power supply and batteries both 
installed.Take batteries out of the master station. Both power sources 
cannot be used simultaneously.
Chime tone sounds weak, low frequency Weak batteries or low voltage.If batteries are installed, replace them. If using a power supply, 
check for 6VDC. If low, install a new SKK-620C.
Master stays on; does not time out. Incorrect cable being used.
Volume control not adjusted properly.
Standard volume level.If the resistance of the wire is too great, usually from 
exceeding distance limitations, the master may not time out as 
designed. Refer to wire specifications in the instructions.
Remove front cover of the C-ML/A and locate volume 
potentiometer through hole at bottom of unit. Use a small 
screwdriver to adjust the volume, clockwise to increase.
There is not a separate call tone volume adjustment on the 
C-ML/A so the volume level cannot be altered. Surface mount 
component level modification would be required, which is not 
paractical.
RY-AC/A external signaling relay not working. Missing or wrong connection.
Make sure the negative from the 12VDC supply for the RY-AC/A 
is connected to the negative of the C-ML/A master. Make sure 
the WHITE wire of the RY-AC/A is connected to the DAK-2S 
component module to terminal 1, not negative terminal.
Voice volume is too loud or too soft.
Chime tone volume is too loud.