Digital Acoustics IP7-FD User manual

IP7™-FD
IP Intercom/Amplifier
Reference Manual

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Table of Contents
Overview ................................................................................... - 1 -
Specifications ............................................................................ - 2 -
IP7-FD Layout............................................................................ - 3 -
LED Indicators ........................................................................... - 6 -
Connecting to an Ethernet Network ........................................... - 7 -
Connecting Power...................................................................... - 7 -
PoE ............................................................................................. - 7 -
External Power ............................................................................. - 7 -
USB Power ................................................................................... - 7 -
Audio - Mic and Speaker ............................................................ - 8 -
Understanding Full Duplex Audio .................................................... - 8 -
IP7-FD Panel Models and Installations ............................................. - 8 -
Wiring Overview ........................................................................... - 9 -
Wiring to FD Panels..................................................................... - 10 -
Wiring the FD Panels - Summary .................................................. - 11 -
Connecting the Relay ............................................................... - 12 -
Connecting the Sensor ............................................................. - 12 -
Alternate Operational Modes ................................................... - 13 -
Line In ...................................................................................... - 13 -
External Microphone Connection Mode........................................... - 13 -
Mounting Instructions ............................................................. - 14 -
Din Rail Mounting ....................................................................... - 14 -
Surface Mounting........................................................................ - 14 -
Setting Volume Levels ............................................................. - 14 -
Configuration ........................................................................... - 15 -
IP Configuration.......................................................................... - 15 -
Intercom Options........................................................................ - 15 -
Physical Dimensions ................................................................ - 16 -
Environmental ......................................................................... - 16 -
Troubleshooting....................................................................... - 17 -
Reset to Factory Defaults ............................................................. - 17 -
Connecting 1/8” (3.5mm) Audio Plug to the Pluggable connectors .... - 17 -
Reducing electrical noise in audio.................................................. - 17 -
Viewing tech support info via the USB port..................................... - 17 -
Low Level Flashing Utility............................................................. - 18 -
Contacting Technical Support .................................................. - 18 -
Regulatory Notices .................................................................. - 19 -
Index ....................................................................................... - 20 -

Overview
The Digital Acoustics IP7-FD is an IP (Internet Protocol) 2-way intercom with
an integrated output amplifier, relay, sensor and 2-port network switch.
The “FD” is designed to work in tandem with Digital Acoustics FD “Full
Duplex” panels and enclosures to support high definition Full Duplex audio
and simultaneous 2-way hands free conversations.
Standard features of the IP7-FD include:
•IP connectivity for Intercom and Paging with TalkMaster™and SIP
based VoIP telephones
•Full duplex audio when used in conjunction with ‘FD’ series wall panels
•Highly scalable, seamless expansion
•Paging capability
•Mounting via rail or surface mount
•Fixed or DHCP compliant IP assignment
•Auto sensing power from 12VDC - 15VDC
•PoE (802.3af) standard
•Integrated 2-port switch
•Field upgradeable OS
The IP7-FD must be configured using the TalkMaster software before
being used. Please consult the configuration section of the software
manual for details.
!

Specifications
Items
Specification
Network Protocols
TCP, UDP, SIP, RTP, ICMP, IGMP Multicast
Network Interface
10/100 Ethernet (Auto detection, Auto MDIX)
Command protocols
Proprietary and Standards Based
Audio Resolution
G.711 (8-bit PCM and 16-bit uLaw)
Audio Sample Rate
8K (Voice band) , 22K (Background Music)
Audio Frequency
90-4kHz (Voice band) , 90-11khz (Background Music)
Internal Amplifier
8 watt @ 8 Ohms 1% THD
Humidity
10~90%
Power
External Power 12-15 VDC @ 15 watts nominal.
PoE (802.3af) compliant (requires 15.4 watts from
PSE). External Power overrides PoE power
Size
3.85. x 3.59 x 1.37 in
98 mm x 91mm x 35mm

IP7-FD Layout
1
2
3
4
6
7
J1
8
5
J2
J3

Connections and Controls
Refer to the preceding pictures.
Connector
Connector / Control
Notes
1
+ Button
Volume up button
2
- Button
Volume down button
3
USB-B
Provides for low level firmware flashing
as well as viewing technical support
information. Will also power the unit for
diagnostic purposes.
4
Ext I/O
I2C expansion bus interface that can be
used for custom applications. Requires
custom firmware from Digital Acoustics
5
Ethernet 10/100
10/100 Ethernet network interface.
Supports auto negotiation and auto-MDIX
6
Port 2 10/100
Provides a 10/100 Ethernet network
connection for another device. Supports
auto negotiation and auto-MDIX
7
Aux Power
2.1mm power connector with center tip
positive. 12VDC - 15VDC @ 15 watts.
Overrides PoE power.
Warning: Connecting power to both the
2.1mm Power jack and the J1-1 and J1-2
power connectors at the same time will
damage the unit
8
DIN Rail Mounting Clip
Allows unit to be snapped on to standard
35mm DIN Rail stock

There are three sets of pluggable DIN connectors (3.81mm centers) on the
FD:
J1 Connector
J2 Connector
J3 Connector
LED Indicators
Intercom LEDs
Connector
Signal
Notes
J1-1
Power +
12VDC at 15 watts. Overrides PoE power.
Warning: Connecting power to both the 2.1mm power jack and the
J1-1 and J1-2 power connectors at the same time will damage the
unit
J1-2
Power -
Connector
Signal
Notes
J2-1
MIC +
Microphone Inputs. Pseudo differential (Actively Balanced
differential).
Also capable of accepting Line In signal
J2-2
MIC -
J2-3
N/C
This connector is not used
J2-4
GND
System Ground. Same as J3-6
J2-5
TALK
Talk or Call button. Initiates a call to the configured Server.
Reference to J2-4
J2-6
SPKR 8Ω+
Floated differential output. Able to drive an 8 Ohm load @ 8 watts or
a 600 Ohm load
J2-7
SPKR 8Ω-
Connector
Signal
Notes
J3-1
NO
Isolated Dry Contact Relay output. Connect J3-2 and either J3-1 for
NO (Normally Open) or J3-3 for NC (Normally Closed)
J3-2
COMMON
J3-3
NC
J3-4
LINE IN
Multi Use Connector
Speaker Mix - Audio is sent directly to the Speaker Outputs (default
action). Unbalanced. Reference to J3-6
Standard Line In - Unbalanced. Reference to J3-6. Requires special
Audio Profile. This will bypass Acoustic Echo Cancellation!
J3-5
SENSOR
Door Sensor. Active when closed to ground or Active when open to
ground. Reference to J3-6
J3-6
GND
System Ground. Same as J2-4
J3-7
CASE
Optional connection to earth ground

There are four LEDs present on the curved bezel on the front of the product.
•The blue LED indicates that the IP7-FD has powered up.
•The three red LEDs indicate status of the unit.
LED
Description
Ready
Indicates whether the unit has connected to a Server
Link
Indicates whether the unit has a valid network Connection
Active
Indicates whether audio is being transmitted or received
LED Status Table
Description
Ready
Link
Activity
Normal operational mode. Intercom can
communicate with its Server
On
On
Off
Playing Audio
On
On
Flashing
Playing Broadcast Audio
Fast Flash
On
Flashing
Sending Audio
On
On
On
Attempting to connect to make a
connection or unit has not been
configured
Flashing
On
LAN connection is inactive. The RJ45 may
be unplugged
Flashing
Off
Unit has been detected by the Intercom
Configuration Tool
Fast Flash
On
LAN Connector LEDs
On the Ethernet 10/100 RJ-45 connector:
•The Green LED tracks to the Ready LED
•The Yellow LED tracks to the Link LED
On the Port 2 10/100 RJ-45 connector
•The Green LED tracks to network transmit activity
•The Yellow LED tracks to network receive activity

Connecting to an Ethernet Network
The Ethernet 10/100 connector allows the unit to be attached to a 10/100
network. Port 2 10/100 allows an additional IP device to be connected to
the network without the need for an additional network drop. The second
port is not PoE capable.
•Plug a Cat5 cable into the RJ-45 connector labeled Ethernet 10/100
and connect the other end to a 10/100 switch.
•To connect a second IP device to the network, plug a Cat5 cable in the
RJ-45 connector labeled Port 2 10/100
•The Ethernet 10/100 connector supports auto “MDIX” and can be
plugged directly into a PC for diagnostic purposes.
Connecting Power
The IP7-FD auto senses the power source and voltage. An external power
source will always override PoE power.
PoE
Plug a Cat5 cable from an 802.3af compatible switch or injector into the RJ-
45 connector that is next to the 2.1mm Power Jack connector. 15.4 watts
will be requested from PoE (802.3af compatible) Power Source Equipment
(PSE).
External Power
•The 2.1mm Power Jack (center tip positive) accepts 12VDC. The J1-
1(+) and J1-2(-) connector accepts 12VDC
•DO NOT supply power to both the 2.1mm Power Jack and the J1-1
and J1-2
USB Power
The USB connector can be used to power up the unit for diagnostics or low
level firmware flashing. Plug a USB cable from a PC into the USB-B connector.
The unit will power up, but will not be able to be used for audio operations.

Audio - Mic and Speaker
Understanding Full Duplex Audio
The IP7-FD Full Duplex Operation is often referred to as Speakerphone or
Hands Free mode. The technology to enable 2-way conversation without
acoustic feedback involves a process called Acoustics Echo Cancellation (AEC).
For AEC to be effective, the total system design needs to be considered. This
includes incorporating sophisticated DSP electronics and optimizing the
Speaker Frequencies and placement of the speaker and microphone based on
the maximum volume to be played on the speaker.
Digital Acoustics FD series has highly advanced DSP electronics developed
exclusively for IP Intercoms with software that can optimize the endpoint
based on the physical environment.
Simple ‘dialog’ choices in the TalkMaster™ software offer several instant
profiles for CIS4-FD, SPKR-IP 5-FD and other call station endpoint panels.
Please refer to the Admin Console Reference Guide for more information on
selecting Audio Profiles.
IP7-FD Panel Models and Installations
CIS4-FD
Outdoor Install
CIS4-FD
Indoor Install
SPKR-IP 5-FD
Indoor Speaker

Wiring Overview

Wiring to FD Panels
Microphone Wire 18-20 AWG –2 Conductor, Shielded
For best results and to minimize interference, the Microphone must
connect to the IP7-FD with 18-20 AWG 2 conductor Shielded wire.
Connect the Shield to the J2-4 (GND) connector on the IP7. Do not
connect the Shield to the call station.
The Microphone wire must not be in the same jacket as the
Speaker wire!
Speaker 18 AWG - 2 Conductor
For best results and to improve performance, connect the speaker to
the IP7-FD using 18 AWG - 2 Conductor.
Talk (Call) Button 18 AWG - 2 Conductor
The optional Talk Button connector is used to initiate a call to
the TalkMaster software or to a SIP Server.
To wire the Talk Button, connect J2-5 to the Button, and then
connect J2-4 to the Button’s other contact. Optionally, the
Button’s other contact can be attached directly to one of the Speaker
terminals.
With TALK/CALL signal
M
I
C
Shield
M-
M+
Connect
Shield to
GND at IP7
18-20 AWG
2-Conductor
Shielded
WP 293 or
Equivalent
Wire
S
P
K
R
/
T
A
L
K
SP+
SP-
TALK
GND
18 AWG
4-Conductor
WP 244 or
Equivalent
Wire

Without TALK/CALL signal
M
I
C
Shield
M-
M+
Connect Shield
to GND at IP7
18-20 AWG 2-
Cond
Shielded
WP 293 or
Equivalent
Wire
S
P
K
R
SP-
SP+
18 AWG 2-
Cond
2 Conductor
WP 224 or
Equivalent
Wire
Wiring the FD Panels - Summary
IP7 Connector
Panel Connection
Wire
Comment
J2-1 MIC+
Microphone + (red)
M+
Mic Audio
J2-2 MIC-
Microphone - (black)
M-
Mic ground
J2-4 GND
N/A
Shield
Drain
J2-4 GND
Call Button (if used)
Ground
Button can optionally be
grounded to one of the
Speaker terminals
J2-5 TALK
Call Button (if used)
TALK
Call initiation
J2-6 SPKR 8Ω+
Speaker
S+
Speaker Audio
J2-7 SPKR 8Ω-
Speaker
S-
Speaker Audio

Connecting the Relay
The Relay connector provides a dry contact output from the IP7-FD suitable
for activating equipment such as electronic door strikes, strobe lights or
CCTV cameras. Normally Open (N/O) or Normally Closed (N/C) can be
chosen. The Relay is rated at 250 VAC / 30VDC @ 60W / 1500 VAC
Isolation.
•J3-1 is N/O
•J3-2 is Common
•J3-3 is N/C
•Ensure Relay has been properly configured in the Intercom’s Software
Configuration program
Connecting the Sensor
The IP7-FD supports an input Sensor that can be used for a variety of
applications. The Sensor can be defined as Active when closed to ground
or Active when open to ground via software. Digital Acoustics’
TalkMaster™ Software provides functionality for monitoring the status (open
or closed) of a door via the Sensor.
•Connect J3-5 and J3-6 to a door sensor or device that can provide a
contact closure
•Ensure Sensor has been configured to be Active when closed to
ground or Active when open to ground in the Intercom’s Software
Configuration program

Alternate Operational Modes
Line In
The IP7’s Line In connector provides multiple uses. By default, audio from
this connector acts as a Speaker Mix and is routed directly to the IP7’s
Speaker allowing the IP7 to be used as an analog amplifier. Contact Digital
Acoustics Technical Support for instructions.
When connecting an audio source that provides a “line in”audio level,
connect it to the IP7’s Mic+ and Mic- terminals. When configuring the Audio
Profile for this device, edit the Audio Profile to include Register 0x101e with a
value of 0x00.
Line In can also function as a traditional Line In with a standard
unbalanced signal. The audio from this source will bypass all of the DSP
functions such as AEC and AGC. If this is required, contact Digital Acoustics
Technical Support for a custom audio profile.
•Ensure Line In has been selected in the IP7’s Input Source
configuration
•Connect J3-4 to the + side of the input source
•Connect J3-6 to the - side of the input source
External Microphone Connection Mode
The IP7-FD can accept electret microphones. Certain weather proof speakers
may also be used as a microphone.
To connect an Electret Microphone
•Connect J2-1 to the Mic + lead of the Electret Mic
•Connect J2-2 to the Mic - lead of the Electret Mic
•Connect a jumper between J2-2 and the J2-4 Ground
If an external microphone is used, the default AEC “Full Duplex” audio
profiles may not provide proper Acoustic Echo Cancellation. Please
contact Digital Acoustics’ technical support for additional information
on the connecting microphones and speakers and the affect on Acoustic Echo
Cancellation.
!

Mounting Instructions
The IP7-FD can be installed on a DIN Rail or surface mounted.
Din Rail Mounting
To DIN rail mount:
•Cut a piece of 35mm DIN rail (not supplied) to the desired length and
secure it to the wall
•Place the IP7-FD onto the DIN rail by tilting the top of the unit (J1, J2,
J3 connectors facing up with Volume buttons and USB-B connector
facing forward) back towards the DIN Rail until the IP7-FDs DIN clip
catches the top of the rail
•Press in at the bottom of the IP7-FD to snap it in place
Surface Mounting
To surface mount:
•Attach the surface mount plate to the back of the unit using the
provided screws. The two mounting holes of the surface mount plate
should be above the J1, J2, and J3 connectors
•Attach two (2) #8 pan head
screws 2 inches (52 mm) apart
and screw in to within ¼”
•Place the mounting holes of the
IP7-FD over the #8 screws
•Attach one (1) #8 screw to the
remaining hole at the bottom of
the mounting plate
Setting Volume Levels
The IP7-FD supports seven volume levels for an attached speaker.
•Press the “+” or “-“ button one time to increase or decrease the
speaker volume
•If no audio is playing, a high frequency beep is heard when the volume
“+” is pressed and a low frequency beep is heard when the volume “-”
is pressed
•Pressing the “-” or “+“ button seven times sets the unit at its lowest or
highest setting.
•Refer to the software manuals for setting the volume via software.

Configuration
IP Configuration
Refer to the TalkMaster software manuals for instructions on setting the IP
address information for the IP7-FD
Intercom Options
Refer to the software manuals for instructions on setting the following
Intercom options in the IP7-FD:
Dry Contact Relay
Activate Door Open via Operator control from the software
Activate on Push-to-Talk (PTT)
Activate on Mic, Speaker or Mic and Speaker
Sensor
Active when Closed to Ground (Door)
Active when Open to Ground (Door)
Active when Closed to Ground (Custom)
Active when Open to Ground (Custom)

Physical Dimensions
The IP7-FD dimensions are as follows:
Environmental
The IP7-FD is designed to operate indoors or in a weather proof box that has
a NEMA4 or IP66 rating.

Troubleshooting
Always refer the LED Indicator table when troubleshooting the IP7-FD.
Reset to Factory Defaults
The IP Address information and all Intercom options can be reset to factory
defaults by the following procedure:
•Unplug the Power
•Press and hold the “Vol +” and “Vol -“ buttons
•Power the unit
•Wait till the unit plays a 3 tone beep (about 5-8 seconds)
•Release the “Vol +” and “Vol -“ buttons
•Refer to the software manuals for instructions on setting the IP
address information
Connecting 1/8” (3.5mm) Audio Plug to the Pluggable connectors
To connect a Mic or Line In to the pluggable connectors via a 1/8” audio plug,
the audio plug should be wired as follows:
•The Tip should be wired to positive
•The Sleeve should be wired to minus or ground
•On stereo plugs, the Ring should be left unconnected
Reducing electrical noise in audio
Improper wiring can cause noisy audio when transmitting microphone audio
from the FD. To minimize the possibility of this:
•Locate the unit at least one meter away from transformers, stepper
motors or other noise producing equipment
•Use shielded twisted multi-conductor cable for microphone audio and
follow the grounding recommendations
•Do not run audio cable in the same conduit with AC power
•Attached J3-7 to an earth ground
Viewing tech support info via the USB port
If requested by Digital Acoustics Support, a USB cable can be attached to the
IP7-FD to capture additional information.
•Attach a USB cable to the USB-B connector on the unit.
•Attach the other end of the cable to a PC running Windows®.
•If an “Install Hardware” prompt is displayed, insert the TalkMaster CD
that came with the product and install the USB Virtual Com port.