AMX DTMF+ Interface AXB-DTMF+ User manual

instruction manual
AXlink Bus Controllers
AXB-DTMF+
DTMF+ Interface

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Table of Contents
i
AXB-DTMF+ DTMF+ Interface
Table of Contents
Product Information .................................................................................................1
Specifications .................................................................................................................... 1
Configuration and Installation .................................................................................3
Setting the Internal Jumpers ............................................................................................. 3
Auto Answer mode................................................................................................................... 3
Line Setting mode .................................................................................................................... 4
Wiring the AXB-DTMF+..................................................................................................... 4
Preparing captive wires............................................................................................................ 4
Wiring guidelines...................................................................................................................... 4
Connecting External Telephone Lines .............................................................................. 5
Audio In ............................................................................................................................. 5
Audio Out .......................................................................................................................... 5
Testing the AXB-DTMF+ ................................................................................................... 6
Off-hook line and off-hook phone troubleshooting ................................................................... 6
Programming ............................................................................................................7
Send_Commands.............................................................................................................. 7
Operative Send_Commands.................................................................................................... 7
Timing System Send_Commands.......................................................................................... 10
Fine Tuning Send_Commands .............................................................................................. 14
Distinctive Ring Patterns and Send_Commands ............................................................ 15
Changing a Default Ring Pattern ........................................................................................... 16
Distinctive Ring Send_Commands......................................................................................... 17
Axcess Program Example ............................................................................................... 18
Channel Codes................................................................................................................ 22
Caller ID .......................................................................................................................... 24
Program Example for Caller ID .............................................................................................. 24

ii AXB-DTMF+ DTMF+ Interface
Table of Contents

Product Information
1
AXB-DTMF+ DTMF+ Interface
Product Information
The AXB-DTMF+ DTMF Interface (FIG. 1) links an Axcess central controller to a telephone
network, enabling dual tone multi-frequency (DTMF) and audio pass-through control. The AXB-
DTMF+, with a programmed central controller, processes incoming calls and initiates outgoing
calls to any pager or cellular phone.
The multi-function AXB-DTMF+ can be integrated for many imaginative and creative purposes
within a home or work environment using touch-tone control. For example, the AXB-DTMF+ can
announce callers by caller ID data, or can set up an audible menu selection to process incoming
calls for routing.
The audio pass-through can be used with an AXC-SPE Enhanced Speech Synthesizer card, or PC
sound card to produce audible menus, monitor phone audio, or provide audio input such as music
on hold. The AXB-DTMF+ allows a user to issue instructions to the AMX Central controller from
a remote location using any touch-tone telephone.
The AXB-DTMF+ receives and decodes DTMF audio signaling and sends the decoded data to the
central controller for the switching/controlling of any devices connected to the central controller.
An Axcess program written on a personal computer, and downloaded to the central controller,
enables the central controller to interpret the data received from the AXB-DTMF+. The program
may also issue menu selections over the telephone through an optional AXC-SPE card. For more
information about programming a central controller, refer to the Axcess Programming Guide.
Specifications
The following table lists the product specifications for the AXB-DTMF+.
AXB-DTMF+ Specifications
Power requirement 12 VDC
Power consumption 80 mA
DTMF+ Monitoring The AXB-DTMF+ can monitor DTMF signals only when in an off-hook state or
when a phone attached to the extension connection is taken off-hook.
Incoming signal detection • DTMF tones
•Ring
• Distinctive ring
•CallerID
Outgoing signal detection • DTMF tones
•Ring
•Busy
• Call termination
• Dial tone
Hardware state detection Detects if the AXB-DTMF+ is off-hook, or if the extension phone is off-hook.
Control Provides control for:
• AXB-DTMF+ off-hook/hangup
• Auto answer
• Extension phone on/disable
• Audio to telephone, and telephone to audio pass-through coupling

Product Information
2AXB-DTMF+ DTMF+ Interface
AXB-DTMF+ Specifications (Cont.)
Operation modes (set via
internal jumpers):
• Auto Answer
• Line Type
Refer to Setting the Internal Jumpers section on page 3 for details.
Front panel components (FIG. 1):
AXlink LED Blinks on and off to indicate that the AXB-DTMF+ is communicating with the
central controller.
Off Hook Phone LED Lights when ever a telephone connected to the PHONE connector on the AXB-
DTMF+ is in an off-hook condition.
The OFF HOOK PHONE LED only functions when the telephone line is con-
nected directly to the AXB-DTMF+.
Off Hook Line LED Lights when the AXB-DTMF+ is taken off-hook.
The OFF HOOK LINE LED only functions when the telephone line is con-
nected directly to the AXB-DTMF+.
Ring LED Lights when an incoming call ring is detected.
DTMF RX LED Lights when the AXB-DMTF+ is receiving DTMF signals.
DTMF TX LED Lights when the AXB-DMTF+ is transmitting DTMF signals out.
Rear panel components:
Phone connector This RJ-11 connector is used for attaching a telephone.
Line connector This RJ-11 input connects the incoming telephone line to the AXB-DTMF+.
Audio In RCA connector that provides unbalanced line level audio input signals for cou-
pling to the telephone line signals for coupling to the telephone line..
Audio Out RCA connector that provides an output for unbalanced line level (1V p-p) audio
signals coupled from coupled from the telephone line.
AXlink 4-pin captive-wire connector that provides power and communications with the
Axcess central controller.
Weight 1.0 lbs (454.0 g)
Dimensions (HWD) 1.51" x 5.55" x 6.45" (38.4 mm x 141 mm x 165 mm)
Mounting options • Flat mount
• Rack mount (using an optional AC-RK accessory rack kit).
FIG. 1 Front and rear views of the AXB-DTMF+
AUDIO
LINE
IN OUT
AXlink
AXM
GND
AXP
PWR
RING
ON
HOOK
PHONE
OFF
HOOK
LINE
OFF
DTMF
RX
DTMF
TX
DEVICE
PHONE
AXlink

Configuration and Installation
3
AXB-DTMF+ DTMF+ Interface
Configuration and Installation
Setting the Internal Jumpers
There are two 2-position jumpers on the AXB-DTMF+ circuit card (FIG. 1). Each jumper is set to a
default pin setting. These jumpers are positioned to enable automatic call answering and select line
setting for a leased line or phone operation.
Auto Answer mode
The 2-position jumper JP2 selects auto answer ON or OFF mode when the system powers on.
When the auto answer is on, the AXB-DTMF+ answers on the ring set by the Send_Command
COUNT-XXX. If the ring count is set to 3, for example, auto answer picks up the call after the
third ring. The default count is 1 ring. The default jumper setting is shown in FIG. 2.
To change the auto answer default from ON to OFF:
1. Remove the AXB-DTMF+ unit cover.
2. Remove the jumper from pins 2 and 3, and place it on pins 1 and 2.
3. Re-install the AXB-DTMF+ cover onto the unit housing.
FIG. 1 Location of JP1, JP2 jumpers, and Audio In potentiometer.
FIG. 2 Auto answer jumper JP2 (default setting = Auto Answer ON)
JP1
JP2
Audio In pot
JP1 - Line selection
JP2 - Auto Answer
front
pin 3
pin 2
pin 1
Auto Answer ON
Auto Answer OFF

Configuration and Installation
4AXB-DTMF+ DTMF+ Interface
Line Setting mode
The 2-position jumper JP1 selects PHONE or LEASED line operation when system powers on.
FIG. 3 shows the default setting.
To change the line setting default from PHONE to LEASED:
1. Remove the AXB-DTMF+ cover from the unit housing.
2. Remove the jumper from pins 2 and 3, and place it on pins 1 and 2.
3. Re-install the AXB-DTMF+ cover onto the unit housing.
Wiring the AXB-DTMF+
Preparing captive wires
To connect the wiring into a captive-wire connector:
1. Strip 1/4 inch off the wire insulation for all four wires.
2. Tin 2/3 of the exposed wire.
3. Insert each wire into the appropriate captive-wire connector up to the insulation.
4. Tighten the captive screws to secure the fit in the connector.
Wiring guidelines
The interface requires a 12 VDC power to operate properly. The interface uses a PSN2.8 power
suppl. The Central Controller supplies power via the AXlink cable or external 12 VDC power
supply. The maximum wiring distance between the Central Controller and interface is determined
by power consumption, supplied voltage, and the wire gauge used for the cable. The table below
lists wire sizes and maximum lengths allowable between the AXB-DTMF+ and Central Controller.
The maximum wiring lengths for using AXlink power are based on a minimum of 13.5 volts
available at the Central Controller’s power supply.
FIG. 3 Line Setting jumper JP1 (default setting = PHONE)
pin 3
pin 2
pin 1
Phone
Leased
If the device is using a separate power supply, do not connect the power wiring from
the AXB-DTMF+ to that device.
Wiring Guidelines at 80 mA
Wire Size Maximum Wiring Length
18 AWG 1467.14 feet (447.18 m)
20 AWG 928.22 feet (282.92 m)
22 AWG 578.70 feet (176.39 m)
24 AWG 364.79 feet (111.19 m)

Configuration and Installation
5
AXB-DTMF+ DTMF+ Interface
Connecting External Telephone Lines
Telephone cabling for both the input and extension lines are standard RJ-11 type connections.
Follow these steps to connect external telephone lines.
1. Check the circuit card jumper settings to match line type and auto answer mode. For more
information, refer to AXB-DTMF+ Jumpers in the Pre-Installation section of this manual.
2. Connect the AXlink cable to the Axcess Central controller AXlink input.
3. Connect the male RJ-11 jack of the incoming telephone line input to the AXB-DTMF+ LINE
jack and the extension telephone cable to the PHONE jack on the rear of the AXB-DTMF+.
4. Adjust the AUDIO OUT level by referring to the Audio Pass-Through Level paragraphs in this
section.
Audio In
The audio in is provided for music on hold or for voice menu selections if connected. If the audio
volume is too low or too high, the audio in level needs to be adjusted. Increase or decrease the audio
in pass-through level (gain) from the AXB-DTMF+. The AUDIO IN pot is located about mid-center
on the AXB-DTMF+ circuit board (see FIG. 1). Perform these steps to adjust the audio in level.
1. Remove the AXB-DTMF+ cover from the unit housing. Then, apply an audio signal (1 V p-p
maximum) to the AUDIO IN connector.
2. Listen on-line and use a small flat-blade screwdriver to turn the pot counter clockwise to
reduce audio level from AUDIO IN. Turn the pot clockwise to increase the AUDIO IN level.
3. Re-install the AXB-DTMF+ cover onto the unit housing.
Audio Out
The AUDIO OUT jack provides a means of routing line level signals, which originates on the
telephone line to an external device such as a sound card.
Cables and connectors for telephone and audio hook-up are not included with the
AXB-DTMF+.
If audio is connected to the AXB-DTMF+, make sure the audio is turned on by using
the correct Send_Commands. Refer to the Axcess Programming section.
To prevent "howling", make sure that the AXB-DTMF+ AUDIO IN and AUDIO OUT
lines are not looped back through an external device.

Configuration and Installation
6AXB-DTMF+ DTMF+ Interface
Testing the AXB-DTMF+
Follow these steps to test the AXB-DTMF+:
1. Disconnect AXlink power.
2. Remove the cover from the unit housing and set the AUTO ANSWER jumper to AUTO ANSWER
ON then reinstall the cover on the unit housing.
3. Reconnect AXlink power. The status LEDs should blink in sequence from right to left and the
AXlink green LED should be blinking.
4. Place a call to the AXB-DTMF+ from an outside line.
5. The RING LED should light with an incoming ring.
6. The OFF HOOK LINE LED should light after 1 ring.
7. The DTMF RX LED should light when tones are sent from the calling telephone.
8. Check line quality and operation using an extension telephone connected to the PHONE jack.
9. Return the AUTO ANSWER jumper to OFF position, if desired.
Off-hook line and off-hook phone troubleshooting
The off-hook line and off-hook phone LEDs light only if there is a good telephone line connection.
If either the off-hook line or off-hook phone LED fails to light, a faulty telephone line connection is
indicated.
Make sure a proper phone line connection exists to light both off-hook and extension off-hook
LEDs. Test the off-hook line by following these test procedures:
1. Take the AXB-DTMF+ off-hook by issuing the off-hook Send_Command from the central
controller. If there is a good telephone line connection, then the OFF HOOK LINE LED lights.
2. If the OFF HOOK LINE LED fails to light, then there is a bad or faulty telephone line
connection. Check the incoming telephone line and make sure it is working properly. Then,
check the RJ-11 cable and its connection to the AXB-DTMF+.
Test the off-hook phone using the following steps:
1. Take the receiver off the extension telephone. If there is a good telephone line connection, then
the EXTENSION OFF HOOK LED lights.
2. If the OFF HOOK PHONE LED fails to activate, make sure that an extension off-hook
Send_Command has not been issued (you can do a Send_Command extension on-hook to be
sure; see the Operative Send_Commands section on page 7 for details). If this does not
produce results, then there is a faulty telephone line connection. Check the incoming telephone
line and make sure it is working properly. Then, check the RJ-11 cable and its connection to
the AXB-DTMF+. Make sure the RJ-11 cable from the extension telephone is good.
The extension telephone is optional and supplied by the user.