114A3880_Wired Door Alarm Mux.indd - LiftMaster
Wired Door Alarm Multiplexer
Installation Manual
Thank you for purchasing the Wired Door Alarm Multiplexer. While every effort has
been made to ensure the accuracy of the information in this document, Chamberlain
Access Solutions assumes no liability for any inaccuracies contained herein. We
reserve the right to change the information contained herein without notice.
NOTICE: To comply with FCC and or Industry Canada rules (IC), adjustment or modifications of
this receiver and/or transmitter are prohibited, except for changing the code setting or replacing the
battery. THERE ARE NO OTHER USER SERVICEABLE PARTS.
This device complies with part 15 of the FCC rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful interference, and (2) This device must accept
any interference received including interference that may cause undesired operations.
В© 2009 Chamberlain Access Solutions
All rights reserved. No part of this publication may be reproduced, transmitted,
transcribed, or translated into any language in any form, by any means, without
written permission of Chamberlain Access Solutions.
114A3880
CONTENTS
Initial Installation Instructions............................................................................................ 1
Multiplexer Channel Layout ...................................................................................4
Addressing the Mux ...............................................................................................5
Installing the Magnets....................................................................................................... 7
Installing the Door Switches ............................................................................................. 8
AMS-37LG48 Switches with Z-Bracket..................................................................8
ODC-51A Tube Switches .......................................................................................8
QuickSwitchВ® ........................................................................................................9
Recessed Switches ...............................................................................................9
Installing the Trunk Line.................................................................................................. 10
Method # 1 – Conventional Two-wire Method .....................................................10
Method # 2 – End-of-Line Ground Method ..........................................................14
Troubleshooting Door Alarms ......................................................................................... 16
Mux and Channel List ..............................................................................................18
Wired Door Alarm Multiplexer Installation Manual
This installation guide is for use in setting up a Wired Door Alarm Multiplexer. Please read
this entire document before proceeding and follow all steps in order.
We strongly recommend that installation and setup of any Chamberlain Access Solutions
equipment be done by a certified, licensed, qualified, and competent person. Chamberlain
Access Solutions can recommend local dealers and installers, but it is up to the customer
to verify their qualifications and negotiate any pricing or contracts unless Chamberlain
Access Solutions has been specifically contracted in writing to do so for the customer.
These guidelines are subject to change without notice. With any setup or configuration,
some troubleshooting and adjustment of the configuration may be required. This will
differ with every installation depending on many outside and site-specific variables. This
troubleshooting and configuration may include purchasing additional equipment. In no
circumstances will Chamberlain Access Solutions be responsible for any damages either
incidental or consequential based on these recommendations. All installation of electronics
and electrical systems must be in compliance with local, municipal, and state codes and
the National Electrical Code.
Warning: Incorrect installation of electrical components can result in damage to electronics
as well as personal injury.
Warning: Cross-wiring the AC power with DC power will damage the electronics.
Warning: Cross-wiring the Power wires with the Data wires will damage the electronics.
Warning: Cross-wiring the positive and negative on the DC part of the system will damage
the electronics.
Warning: Do not run low voltage system wires in the same conduit as high voltage
wiring.
Warning: The User should follow all installation, operation, and maintenance
instructions. The User is strongly advised to conduct product and systems tests at least
once each week. Changes in environmental conditions, electric or electronic disruptions
and tampering may cause the product to not perform as expected.
Warning: Chamberlain Access Solutions warrants its Product to the User. The
User is responsible for exercising all due prudence and taking necessary precautions for
the safety and protection of lives and property wherever Chamberlain Access Solutions
products are installed. Chamberlain Access Solutions does not authorize the use of its
products in applications affecting life safety.
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Wired Door Alarm Multiplexer Installation Manual
INITIAL INSTALLATION INSTRUCTIONS
These steps must be followed for installation of the wired door alarm multiplexer.
The multiplexer should be installed high on a wall in an interior hallway or office.
The unit is weather-resistant and can be used on exterior installations, if necessary.
Multiplexers should generally be mounted near the end of a hallway so that trunk
line can be run in one direction to the doors and alarm areas that are connected
to it.
The multiplexer should never be mounted in a rentable unit or other location that will
be inaccessible for future maintenance and service. Once it has been determined
where to install the device, the location and purpose of the device should be noted
on a site security wiring plan that is kept in a safe location for future maintenance
and service purposes.
1. Open the multiplexer by removing the two stainless steel button head
machine screws on the front of the housing using the hex key provided with
the unit. The front faceplate will slide down and off the housing.
2. For convenience, the wiring diagram on the inside of the faceplate is
positioned so that the faceplate can be screwed back onto the housing
upside down. This keeps the faceplate secure while the wiring is being done
and allows the wiring diagram to be easily read during this process. See
Figure 1.
3. Mount the case to the desired location using the four holes. If mounting the
multiplexer in an exterior installation, be sure to seal around the back of each
screw hole with an outdoor silicone sealant.
4. Wire in conduit can be run into the housing through one of two conduit
knockouts in the back of the box or one of the eight knockouts around the
top, bottom, and sides of the housing. These knockouts allow for installation
of Вѕ inch or 1 inch conduit with compression fittings. If a larger size conduit
is needed, drill the correct size hole in the housing in the bottom or lower
back of the housing.
5. Once the conduit locations are determined, place the housing against the
wall and mark the wall through the four mounting holes on the rear of the
housing using a pencil. Use a torpedo level to verify that the housing will be
mounted level.
1
2
Figure 1: Hardwired Mux Wiring Diagram
DCDataCom
Data+
Battery Input (for testing only):
9VDC
24 VDC
(DEDICATED
POWER SUPPLY)
Alarm relay is a dry contact output. Use a
separate power source to drive a siren.
Auxiliary
Alarm Relay
Alarm Relay Output:
Current 2 A
Max
Voltage 24 VDC/AC Max
RS485
Testing
Battery
LED blinks when
online.
Set remote
number by adding
switches 1-6.
Supervised sw on
Tamper sw off
32 16 8 4 2 1 On
0 0 0 0 0 0 Off
Tamper sw on
Supervised sw off
Input Power:
Current 200 mA
Max
Voltage 12 VDC/AC Min
Input Power
DC+
Tamper
Switch
Display cycles through:
1) Time (current time displayed when online)
2) Remote unit number
3) Last activity:
C = Contact closure
O = Contact open
S = Supervised switch shorted
4) Time (current time displayed when online)
5) Firmware Revision Number
6) Channel
Door Alarm Channels
120 VAC 120 VAC
LINE NEUTRAL
(DEDICATED
POWER SUPPLY)
SIREN
Channel=Color
25 = BLK/BRN
26 = BRN/BLK
27 = BLK/SLT
28 = SLT/BLK
29 = YEL/BLU
30 = BLU/YEL
31 = YEL/ORG
32 = ORG/YEL
33 = YEL/GRN
34 = GRN/YEL
35 = YEL/BRN
36 = BRN/YEL
37 = YEL/SLT
38 = SLT/YEL
39 = VIO/BLU
40 = BLU/VIO
41 = VIO/ORG
42 = ORG/VIO
43 = VIO/GRN
44 = GRN/VIO
45 = VIO/BRN
46 = BRN/VIO
47 = VIO/SLT
48 = SLT/VIO
GND = GRN/BLK
Typical Color Sequence
Channel=Color
01 = WHT/BLU
02 = BLU/WHT
03 = WHT/ORG
04 = ORG/WHT
05 = WHT/GRN
06 = GRN/WHT
07 = WHT/BRN
08 = BRN/WHT
09 = WHT/SLT
10 = SLT/WHT
11 = RED/BLU
12 = BLU/RED
13 = RED/ORG
14 = ORG/RED
15 = RED/GRN
16 = GRN/RED
17 = RED/BRN
18 = BRN/RED
19 = RED/SLT
20 = SLT/RED
21 = BLK/BLU
22 = BLU/BLK
23 = BLK/ORG
24 = ORG/BLK
GND = BLK/GRN
CONTACTOR BLOCK
Commons
(All interconnected)
Wired Door Alarm Multiplexer Installation Manual
Wired Door Alarm Multiplexer Installation Manual
6. Communications and power wires must be connected from the RS485
lines connected to the controller terminal block. The wire can be connected
directly to the main terminal block or to the terminal block(s) at other remote
devices (e.g., keypads, relay boards, etc.). Pull the necessary wires through
conduit into the housing. Each device should have the following wires:
• One 18 AWG, 4-conductor, shielded cable coming in from the controller or
from the previous AI device in line.
• One 18 AWG, 4-conductor, shielded cable going out to the next AI device in
line (if there is another AI device down the line).
• One earth ground wire
• One or two, 24 AWG 50-conductor solid copper telephone trunk line cables
coming from the hallway doors.
• One 18 AWG, 2-conductor cable coming from the siren if a siren is being used.
7. Power wires connect to pins 1 and 2 of terminal block 1 (PP13) in the lower
left-hand corner of the circuit board. Data wires connect to pins 4, 5, and 6
of PP13. The wired door alarm mux is powered by a minimum of 12 V to a
maximum of 18 V DC or AC power.
8. With the power disconnected, strip back the outer insulation and shield foil
from both of the 18 AWG, 4-conductor, shielded cables (coming from the
controller or previous AI device in line and going out to the next AI device in
line), being careful not to cut the bare shield wire. Strip Вј inch of insulation
off the end of each of the individual colored conductor wires. Connect the
DC+ or AC wire to pin 1 of PP13 by placing it in the first terminal block hole
and tightening down with a precision standard screwdriver. Connect the DC–
or other AC wire to pin 2 of PP13 in the same way.
9. Insert both red wires into terminal slot 1 on the terminal block. Ensure that
they are both seated all the way inside the slot. Use a flathead precision
screwdriver to tighten down the terminal screw. Verify that the terminal slot
has tightened down on the copper wire and not on the rubber insulation.
There should be no copper wire showing outside of the terminal slot. Gently
tug the wires to verify that they are tightly held inside the terminal slot.
Repeat this process with each of the remaining wire connections as follows.
Pin1
DC +
(Red)
Pin 2
Terminal Block PP13 (TS1)
Pin 3
Pin 4
Pin 5
DC Data +
Ground
(Black)
(White)
(Shield)
Pin 6
Data (Green)
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Wired Door Alarm Multiplexer Installation Manual
10. Strip back 3/8" insulation from the end of the Data + and Data – wires. The
Data Common Ground wire should be bare. Connect the Data + wire to pin 3
of PP13 by placing it in the third terminal block hole and tightening down with
a precision standard screwdriver. Connect Data Common Ground to pin 4
and Data – to pin 5 in the same way.
11. The terminal strips along the right side of the board are the channels and
grounds to which door alarm switches are connected. Multiplexers are
available in 16, 32, 48, 64, 80, and 96 channels. These options allow the
necessary multiplexers to be ordered for the number of doors in each building
and on the site. In general, it is a good idea to plan on leaving a few unused
channels in each multiplexer to allow for future expansion, unit splitting, and
maintenance or service. Each strip is laid out with 16 door channels and four
grounds as shown
Multiplexer Channel Layout
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
1
2
3
4
5
6
7
8
9
10
11
12 13 14 15 16
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
17
18
19
20
21
22
23
24
25
26
27
28 29 30 31 32
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
33
34
35
36
37
38
39
40
41
42
43
44 45 46 47 48
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
49
50
51
52
53
54
55
56
57
58
59
60 61 62 63 64
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
65
66
67
68
69
70
71
72
73
74
75
76 77 78 79 80
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
81
82
83
84
85
86
87
88
89
90
91
92 93 94 95 96
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Ch
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
12. The wires for each door switch should be punched down on the terminal
strip using the Mux Punchdown Tool (Part # TMUXPDTOOL). Do NOT use a
screwdriver, knife blade, or telephone punchdown tool.
To punch the wires down, remove the terminal strip by gently rocking it back
and forth while pulling up and away from the board. Place the terminal strip
on a hard surface and place the wires over the correct slots.
CAUTION: It is highly recommended that the terminal strip be removed. DO
NOT punch down the wires while the strip is still attached to the relay board
as this can damage the board due to flexing.
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Wired Door Alarm Multiplexer Installation Manual
13. Use the mux punchdown tool to firmly press the wires in place. There is
usually an audible click as the wires fully seat.
14. Once the wires are all punched down, use
electrician’s shears or wire cutters to trim the
excess wire from the back of the terminal strip.
Push the terminal strip back onto the pins.
15. Once wiring is complete and tested, slide the
faceplate onto the housing and screw it back
together.
16. As with all remote devices, the wired door alarm
mux must be addressed with a number between
1 – 21 or 23 – 63. This number must not be a
duplicate of any other device. To set the address
from use a small screwdriver to turn on the dipswitches that apply, shown
below in the description of the dipswitches. Never set the address to 0 or 22
as the access control system uses these for special communications.
Addressing the Mux
Switch 1:
Switch 2:
Switch 3:
Switch 4:
Switch 5:
Switch 6:
Switch 7:
Switch 8:
OFF = adds zero to unit number
OFF = adds zero to unit number
OFF = adds zero to unit number
OFF = adds zero to unit number
OFF = adds zero to unit number
OFF = adds zero to unit number
OFF = Supervised Switches Off
OFF = Tamper Switch Enabled
ON = adds one
ON = adds two
ON = adds four
ON = adds eight
ON = adds sixteen
ON = adds thirty-two
ON = Supervised on
ON = Tamper disabled
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Wired Door Alarm Multiplexer Installation Manual
17. The RS485 communications baud rate for all devices on the site must
match. The default baud rate is 9600 bits per second. For most installations,
this rate should not be changed.
18. Dipswitch # 7 places a communication line terminating resistor across the
RS485 data lines when turned on. This switch should only be turned on if the
wired door alarm mux is the last remote device on a communication line that
is more than 800 feet from the base unit.
Note: There should only be one remote device (Keypad, APEX, Wiegand, etc) in an entire
access control system with a terminating resistor turned on. In all other circumstances, this
should be left off.
19. When connecting the door alarms, make sure to connect the unused
channels to ground and also remove the connectors from the board before
punching down the wires for the alarm.
Relay
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Wired Door Alarm Multiplexer Installation Manual
INSTALLING THE MAGNETS
Sites often do not want an installer to rivet magnets to doors as the rivets show
through on the outside of the door. To prevent this issue, we recommend using PL
PremiumВ® polyurethane construction adhesive. PL Premium is made to hold for
the life of the items being joined. To install the magnets:
1. On the latch side of the door, locate the position where the magnet will be
placed. Be sure that the magnet is located within ВЅ inch of where the switch
is to be installed and that it does not interfere with the door rolling up or
swinging. See Installing the Door Switches, for locations by switch type.
2. Use isopropyl alcohol or acetone on a lint-free cloth to clean the magnet
location of construction dust, grease, and other contaminants. Allow the spot
to dry before proceeding.
3. Use a caulking gun to run a Вј inch bead of PL Premium along the back of
the magnet from one side to the other.
4. Press the magnet in place on the door, holding it tightly for 30 seconds. Use
masking tape to hold the magnet in place until the adhesive is set. Remove
the tape after 24 hours. The magnet may be repositioned for up to 20
minutes before the adhesive sets or will have to be reapplied.
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Wired Door Alarm Multiplexer Installation Manual
INSTALLING THE DOOR SWITCHES
The following illustrations detail how to install door switches used in conjunction with
the access control system. Refer to the switch manufacturer’s instructions for more
information.
AMS-37LG48 Switches with Z-Bracket
This method can be used with most types of roll-up doors using AMS-37 switches
on a Z-bracket with a 48 inch lead. Ensure that the tab at the top of the door is bent
out far enough to clear the screws to hold the bracket. The magnet can then be
installed, riveted, and/or glued with PL Premium to the inside of the door.
CAUTION: DO NOT
ATTACH THE BRACKET
TO THE DOOR STOP!
ODC-51A Tube Switches
This method can be used with most types of roll-up doors using ODC-51 tube
switches with a 48-inch lead. Ensure that the contact portion of the tube switch
does not interfere with door movement. Use an electric drill or metal punch to
make the hole in the side of the support wings for the roller shaft. The magnet can
then be installed, riveted, and/or glued with PL Premium to the inside of the door.
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Wired Door Alarm Multiplexer Installation Manual
QuickSwitchВ®
Use this method for installing QuickSwitch door switches. Ensure that the screws
used to hold the QuickSwitch to the track do not interfere with door movement. The
QuickSwitch must line up with the door latch hole and allow free movement of the
door latch. The door latch must be made of ferrous metal and be long enough to
go all the way through the door switch. The door latch must also be wide enough
and thick enough to trigger the switch.
Recessed Switches
This method is used to install recessed door switches (such as AMS-21 and AMS26) on swing doors. Drill a hole sized to fit the switch in the top of the door jamb
and in a matching position on top of the door. These must be on the latch side of
the door about halfway between the middle of the door and the edge. Glue the
magnet in the door and the contact in the doorjamb header using PL Premium.
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Wired Door Alarm Multiplexer Installation Manual
INSTALLING THE TRUNK LINE
Following are instructions on installing the trunk line to connect the individual door
alarm switches to the multiplexer. The trunk line itself should be run behind the
hallway wall along the top of each door.
In most self storage applications, the
trunk line sits in the red iron C-channel
support and is tied down using screwhead
mounting wire ties placed every 2" – 3".
If there is no red iron C-channel support
installed, then tie the cable to the wall
using screwhead mounting wire ties placed
every 2" – 3". The trunk line should be
hidden behind the wall and above the door
in such a way as to be invisible or nearly invisible to the customer.
There are two recommended methods for splicing door switches into the trunk
line. Each has its advantages and challenges depending on the site layout and
needs. The installer and the site representative should review each method before
installation begins to determine which is best for the site.
• Method # 1 – Conventional Two-Wire
• Method # 2 – End-of-Line Ground
Method # 1 – Conventional Two-wire Method
The conventional two-wire method is the most dependable splicing method. It is
commonly used when there are multiple doors in many directions, but is also very
effective with long hallways. The main challenge with this method is that it increases
the amount of wire required. Also, it is extremely important that the grounds be
stepped down correctly. Plan the site to allow for extra channels on the multiplexer
and extra conductors in the trunk line for service
1. Trunk line can be used for this method if there are multiple doors along a
single hallway. CAT5 network cable can be used for smaller groups of doors
and individual 22 AWG or 24 AWG, 2-conductor twisted pair cables can be
used to go out to individual doors. Do not use CAT5 network cable anywhere
else in the system (except for an Ethernet cable where required).
2. Run the lead cable from the door switch up to the trunk line. Use wire ties to
tie a small bundle of wire near the switch for future maintenance and service.
Use wire ties to tie the wire bundle and the wire to the wall or to the door
track every 2 feet up to the trunk line.
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Wired Door Alarm Multiplexer Installation Manual
3. If using individual 22 AWG or 24 AWG, 2-conductor twisted pair cables for
each door, skip to step # 7.
4. If using trunk line or network cable, use an exacto knife or other small
razor knife to cut a 2 inch slit into the trunk line jacket on the switch side
of the door. Be very careful only to cut the jacket and not the conductors
underneath.
5. Spread the slit open and use a wire extractor or blunt precision screwdriver
to sort through the wires to find the two correct wire colors for the signal and
ground. The recommended wire color code order can be found on the Mux
and Channel List chart on pages 18 – 19.
TRUNK LINE
TRUNK LINE
DOOR
CONTACT
WIRE
DOOR
CONTACT
WIRE
6. Use wire cutters to cut both of the wires on the side farthest from the
multiplexer. When cutting in a lot of doors in a building, it can be difficult to
remember which direction the multiplexer is from any given point, so be very
sure before cutting the wire.
7. Connect the signal wire from the cable with signal wire from the door switch
using a 3M UY2 connector. Refer to the Wire Splicing section for more
information about making splices.
8. Connect the ground wire from the cable with ground wire from the door
switch using a 3M UY2 connector.
9. Seal the splices and slit along the line with electrical tape. Any excess door
switch lead cable should be secured to the trunk line using a wire tie. (This
step can be done after all of the doors have been tested in case splices
need to be fixed.)
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Wired Door Alarm Multiplexer Installation Manual
10. Because the Multiplexer may not have enough ground input points for all of
the ground wires, the ground wires will have to be stepped down. This can
be done in one of two ways:
• Use 3M UR2 connectors and insert two ground wires in two of the three
holes and a single ground wire coming out of the third hole. Do this as many
times as necessary to step down to the number of grounds for which there
are input points.
• Use a telephone terminal block and insert all of the ground wires into
terminal slots and jumper all of the slots together. Then run a single ground
wire out to a ground point on the multiplexer.
11. At the multiplexer, punch down the door channel wires in color code order at
the door channel input points. Note which door channel inputs are connected
to which wires.
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Wired Door Alarm Multiplexer Installation Manual
Conventional 2-wire Method using individual 22 AWG or 24 AWG twisted
pair cables
To MUX
3M UY Connectors
(Alarm #3 Wire)
3M UY Connectors
(Alarm #2 Wire)
3M UY Connectors
(Alarm #1 Wire)
From MUX
Door
Contact
Wire
Door
Contact
Wire
Door
Contact
Wire
Conventional 2-wire Method using Trunk Line
3M UY Connector
(Alarm #1 Wire)
From MUX
Door
Contact
Wire
3M UY Connector
(Alarm #1 Wire)
Connected to
Ground in MUX
To End Of
Trunk Line
Trunk Line
To MUX
3M UY Connector
(Alarm #2 Wire)
From MUX
Door
Contact
Wire
3M UY Connector
(Alarm #2 Wire)
Connected to
Ground in MUX
3M UY Connector
(Alarm #3 Wire)
From MUX
Door
Contact
Wire
3M UY Connector
(Alarm #3 Wire)
Connected to
Ground in MUX
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Wired Door Alarm Multiplexer Installation Manual
Method # 2 – End-of-Line Ground Method
The end-of-line ground method is ideal when a site has a large number of doors
that are side-by-side down a hallway, such as in an assisted living facility or a
warehouse with many bay doors. It is extremely important that the end-of-line
splice be made properly. Plan the site to allow for extra channels on a multiplexer
and extra conductors in the trunk line for service.
1. Run the lead cable from the door switch to the trunk line. Use wire ties to
tie a small bundle of wire near the switch for maintenance and service. Use
wire ties to tie the wire bundle and the wire to the wall or to the door track
every 2 feet to the trunk line.
2. Use an exacto knife or other small razor knife to cut a 2 inch slit into the
trunk line jacket on the switch side of the door. Be very careful only to cut the
jacket and not the conductors underneath.
3. Spread the slit open and use a wire extractor or blunt precision screwdriver
to sort through the wires to find the two correct wire colors for the signal and
ground. See the Mux and Channel List chart in the Appendix for the correct
color code order.
TRUNK LINE
TRUNK LINE
DOOR
CONTACT
WIRE
DOOR
CONTACT
WIRE
4. Use wire cutters to cut the correct colored wire. Be sure to cut the line in
the center. Connect one side of the trunk line wire with signal wire from the
door switch using a 3M UY2 connector. Connect the other side of the trunk
line wire to the ground wire from the door switch using a 3M UY2 connector.
Refer to Wire Splicing for more information about making splices.
5. The end of the trunk line farthest from the multiplexer must be in a junction
box. Pull at least 12 inches of trunk line into this box to allow extra cable for
service. At this end of the line, strip back 2 inches of the outside jacket of the
cable. Strip 1 inch back from the insulation on each conductor. Solder all of
the conductors together, being sure to create a solid electrical connection.
Twist a large wire nut down over the connection and wrap the end in
electrical tape. This splice must be carefully made and properly soldered for
this method to work well.
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Wired Door Alarm Multiplexer Installation Manual
6. Seal the splices and the slit with electrical tape. Any excess door switch lead
cable should be secured to the trunk line using a wire tie. (Do this step after
all of the doors have been tested in case splices need to be fixed.)
7. At the multiplexer, punch down the door channel wires in color code order
at the door channel input points. Connect the two ground wires to any of the
ground input points. Note which door channel inputs are connected to which
wires.
END OF LINE SPLICE:
At end of trunk line & within a
junction box outside of units, strip
& solder ALL wires together to
form a continuous ground. Protect
with wire nut AND electrical tape.
To MUX
Trunk Line
3M UY Connector
(Alarm #1 Wire)
From MUX
Ground Wire
(Grounded in MUX)
Door
Contact
Wire
3M UY Connector
(Alarm #1 Wire) to
End-Of-Line Splice
3M UY Connector
(Alarm #2 Wire)
Ground Wire
(Grounded in MUX)
Door
Contact
Wire
3M UY Connector
(Alarm #2 Wire) to
End-Of-Line Splice
3M UY Connector
(Alarm #3 Wire)
Ground Wire
(Grounded in MUX)
Door
Contact
Wire
3M UY Connector
(Alarm #3 Wire) to
End-Of-Line Splice
Ground Wire
(Grounded
in MUX)
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Wired Door Alarm Multiplexer Installation Manual
TROUBLESHOOTING DOOR ALARMS
The following steps can be used for troubleshooting door alarms. Remember to
keep a good set of notes as you troubleshoot. These notes can help for comparison
to find problems, prevent confusion, and help speed things up if site service by a
technician or telephone technical support are required. Many door alarm issues
will need to be checked by a trained service technician.
Ask the following questions: “Is the problem with a single door (or alarm input) or
is it with a bank of doors?” and “Are the units rented or not?” If the unit or units
are rented, it may be necessary to gain access to the doors from the tenants for
troubleshooting.
Check the doors in question. Are they loose, possibly moving due to wind or
vibration from traffic?
Check each multiplexer on the site. The circuit boards, cases, and wiring should
be checked for obvious damage (i.e., vandalism, burn marks from power surge/
lightning, corrosion on the circuit board, water marks, insects, construction debris,
etc.).
Check the voltage across the common and channel input points in the multiplexer
that correspond to the door in question.
• Voltage with the door closed should be 0 VDC.
• Voltage with the door open should be 4.5 – 5 VDC.
• In case of incorrect readings, remove the punch-terminal block and reverify
incorrect readings at the pins to determine whether the problem is just
an improperly punched wire. If it is, repunch the wire using a multiplexer
punchdown tool (part # TMUXPDTOOL). Do not use a screwdriver, knife, or
other phone system punchdown tool as they will not seat the wire correctly.
• Any other incorrect readings indicate a short in the door contact wiring,
loose connection, or ground loop that needs to be investigated and fixed.
Depending on the problem rewiring or replacing a door switch may be
required.
Note: ALL channels in the multiplexer should be checked because problems with one door or
wiring may affect the entire board.
Also, all multiplexers on the site
should be checked as problems
with one may cause problems in
another.
If the problem is occurring in
unused channels:
1. Tie down all unused
channels to common
ground.
16
Wired Door Alarm Multiplexer Installation Manual
2. Punch down a 24 AWG insulated solid wire through any unused door alarm
channels and at least one common ground connection.
3. Connect a length of 24 AWG wire from pin # 5 of the power and data
terminal block to one of the four screws that mount the circuit board to the
metal case. The metal case of the multiplexer must also be mounted directly
to a grounded metal building or tied to a ground rod or grounded metal
structural element of the building such as a metal water pipe or ground rod in
accordance with local code.
4. If at all possible both ends of the shield/ground wire should be tied to ground.
Verify that all wire used during installation of the system is correct to Chamberlain
Access Solutions specifications. 18 AWG shielded wire should be used for power and
communications. 24 AWG telephone wire should be used for the door alarms. Verify
that there are no breaks in the shield, skinned or bare wire, shorts or breaks in the wire,
or splices in the wiring (other than those required for the door alarm switches).
In some cases, radio frequency interference (RFI) may also be a problem. All
electronic equipment is susceptible to RFI. Our equipment has protection built
into it to keep it safe from most RF interference,; however, extreme levels of
RF interference can cause communications problems. Radio antennas, military
bases, airports, radar, power plants, certain types of lighting, cell phone towers,
and communications equipment, are all examples RF generators that can cause
interference problems.
Humidity, temperature, and cloud cover, as well as broadcasting strength and
proximity to the RF source can all make the problem worse. Generally, extreme
levels of RF will cause the system data communications to go on and off (data
comm on/data comm off) or cause the system to report scattered false door
activity during the times when the RF levels are highest. In these extreme cases,
braided shielded telephone wire and/or RF filters on the door alarm wires may be
required in addition to the recommended fixes above. Both of these products are
available through Chamberlain Access Solutions and can be installed by a certified
installer.
If necessary, a full site reset can be performed if there are multiple problems or
ongoing issues. Generally, ongoing problems are a sign of problems in the wiring,
either from bad splices, pinched or nicked wires, radio frequency interference,
water in conduit, or incorrect wire type. To reset the entire site:
1. At every multiplexer and AI device with door alarm inputs, open the housings
and unplug the power and data terminal blocks.
2. Once every device on the site is unplugged, add one device back in to the
system at a time.
3. Allow that device to function for an hour and then add in the next device in line.
Eventually, a device will be added that causes the problem to manifest. Switch this
device with one that has been previously added to verify if the problem exists in
the location or in the device.
17
Wired Door Alarm Multiplexer Installation Manual
Mux and Channel List
Site Name:________________________________
Mux # ____________
Unit
Number
18
Wire # ________
Input
Channel
Wire Color
1
Date __________________
Number of Doors ______________
Unit Number
Input
Channel
Wire Color
White/Blue
49
White/Blue
2
Blue/White
50
Blue/White
3
White/Orange
51
White/Orange
4
Orange/White
52
Orange/White
5
White/Green
53
White/Green
6
Green/White
54
Green/White
7
White/Brown
55
White/Brown
8
Brown/White
56
Brown/White
9
White/Slate
57
White/Slate
10
Slate/White
58
Slate/White
11
Red/Blue
59
Red/Blue
12
Blue/Red
60
Blue/Red
13
Red/Orange
61
Red/Orange
14
Orange/Red
62
Orange/Red
15
Red/Green
63
Red/Green
16
Green/Red
64
Green/Red
17
Red/Brown
65
Red/Brown
18
Brown/Red
66
Brown/Red
19
Red/Slate
67
Red/Slate
20
Slate/Red
68
Slate/Red
21
Black/Blue
69
Black/Blue
22
Blue/Black
70
Blue/Black
23
Black/Orange
71
Black/Orange
24
Orange/Black
72
Orange/Black
Ground
Black/Green
Ground
Black/Green
25
Black/Brown
73
Black/Brown
26
Brown/Black
74
Brown/Black
27
Black/Slate
75
Black/Slate
28
Slate/Black
76
Slate/Black
29
Yellow/Blue
77
Yellow/Blue
30
Blue/Yellow
78
Blue/Yellow
31
Yellow/Orange
79
Yellow/Orange
32
Orange/Yellow
80
Orange/Yellow
33
Yellow/Green
81
Yellow/Green
Wired Door Alarm Multiplexer Installation Manual
Unit
Number
Input
Channel
Wire Color
Unit Number
Input
Channel
Wire Color
34
Green/Yellow
82
Green/Yellow
35
Yellow/Brown
83
Yellow/Brown
36
Brown/Yellow
84
Brown/Yellow
37
Yellow/Slate
85
Yellow/Slate
38
Slate/Yellow
86
Slate/Yellow
39
Violet/Blue
87
Violet/Blue
40
Blue/Violet
88
Blue/Violet
41
Violet/Orange
89
Violet/Orange
42
Orange/Violet
90
Orange/Violet
43
Violet/Green
91
Violet/Green
44
Green/Violet
92
Green/Violet
45
Violet/Brown
93
Violet/Brown
46
Brown/Violet
94
Brown/Violet
47
Violet/Slate
95
Violet/Slate
48
Slate/Violet
96
Slate/Violet
Ground
Green/Black
Ground
Green/Black
Color Code Notes: The first color listed is the broad stripe. The second color listed is the narrow stripe.
The first door on any mux should be spliced to the White/Blue, the second door to Blue/White and so on.
Most important is that the installer be consistent throughout the site. Leave a few unused conductors in
the line and a few unused channels on each mux to allow for future expansion, unit splitting, or service.
Use this chart to track the door alarm wiring throughout the site. This will be used to build the alarm file.
19
For Technical Support, Please Call:
1-888-528-7826
www.chamberlainaccess.com
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