Digital Acoustics IP7-FX User manual

IP7™-FX
IP Intercom/Amplifier
Reference Manual

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Table of Contents
Overview ................................................................................................................................................. 1
Specifications........................................................................................................................................... 2
IP7-FX Layout........................................................................................................................................... 3
LED Indicators .......................................................................................................................................... 6
Replacing an older Model IP7 .................................................................................................................. 7
Connecting Power.................................................................................................................................... 7
PoE............................................................................................................................................................. 7
External Power........................................................................................................................................... 8
USB Power ................................................................................................................................................. 8
Audio - Mic and Speaker .......................................................................................................................... 8
Understanding Full Duplex Audio .............................................................................................................. 8
Understanding Half Duplex Audio ............................................................................................................. 8
Understanding Paging Audio ..................................................................................................................... 8
Microphones............................................................................................................................................ 9
Electret Microphone.................................................................................................................................. 9
Line Level Microphone............................................................................................................................... 9
TalkBack Speaker ....................................................................................................................................... 9
Speakers ................................................................................................................................................ 10
Single 8 Ohm Speaker.............................................................................................................................. 10
Amplified Speaker or Analog Amplifier ................................................................................................... 10
Multiple Speakers .................................................................................................................................... 10
Multiple Speakers using 25/70V transformers ........................................................................................ 10
Multiple 8 Ohm Speakers ........................................................................................................................ 12
Line Out ................................................................................................................................................. 13
Line In .................................................................................................................................................... 13
Talk (Call) Button ................................................................................................................................... 13
Dry Contact Relay .................................................................................................................................. 13
SNSR/3.3V.............................................................................................................................................. 14
Mounting Instructions ........................................................................................................................... 15
Din Rail Mounting .................................................................................................................................... 15
Surface Mounting .................................................................................................................................... 15
Setting Volume Levels............................................................................................................................ 15
Configuration......................................................................................................................................... 16

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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
Technical Support .................................................................................................................................. 18
Regulatory Notices................................................................................................................................. 19
Index...................................................................................................................................................... 20

Page 1
Overview
The Digital Acoustics IP7-FX is a versatile IP (Internet Protocol) 2-way audio
module with an integrated 8-watt amplifier, call button, relay, sensor and 2-
port network switch. It is designed to replace the older IP7-ST/STx
1
, IP7-
SS8, IP7-SE8 and the IP7-FD model IP audio modules and can support:
•Full duplex audio with echo cancellation
•Half duplex audio using a separate mic and speaker
•Half duplex audio using the speaker as both a speaker and microphone
•Paging only audio using one or more 8 Ohm speakers
•Paging only audio using an analog amplifier which is connected to
multiple speakers
With this flexible design the IP7-FX can be used in a variety of applications
where network-based audio is required.
Standard features of the IP7-FX include:
•Pluggable DIN connectors to facilitate wiring
connections
•Flexible analog audio device options
•Highly scalable, seamless expansion
•Mounting via rail or surface mount
•Fixed or DHCP compliant IP assignment
•Powered via external 12VDC or PoE (802.3af)
•Integrated 2-port switch
•Field upgradeable firmware
The IP7-FX must be configured using the TalkMaster software or
eSIP software before being used. Please consult the configuration
section of the software manual for details.
1
The IP7-FX does not support the Aiphone IE/IF Series two wire Door Station. The
IP7-STx is the only Digital Acoustics IP audio module that supports the IE/IF Series
!

Page 2
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 12VDC @ 1.2 amps or 24VDC @ 2.5
amps.
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

Page 3
IP7-FX Layout
1
3
4
6
7
J1
8
5
9
J3
J2
2

Page 4
Connections and Controls
Refer to the preceding pictures.
Connector
Connector / Control
Notes
1
Volume Up
Volume up button +
2
Volume Down
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. PoE enabled
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 @ 1.2 amps or 24VDC
at 2.5 amps. 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
9
ST MIC switch
The ST MIC switch is in the MIC
position by default. If using single
transducer mode (speaker used as both
a speaker and microphone) use a small
screwdriver to move the recessed
switch to the ST position (towards the
DIN clip).

Page 5
J1 Connector
J2 Connector
J3 Connector
Connector
Signal
Notes
J1-1
Power +
12VDC at 15 watts or 24VDC at 2.5 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
Line Out
2VPP
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
Line In - Unbalanced. Reference to J3-6. Use J3-7 to
supply 12V to if needed to power a Line Level Microphone.
** NOTE: When configuring the device, make sure to
configure the Input Source from Microphone to Line In
J3-5
SNSR/3.3V
Sensor –Active when closed to ground (default) or
Active when open to ground based on software
configuration. Reference to J3-6.
Optionally provides 3.3V (current limited) to power an LED.
If powering an LED, make sure to configure SNSR/3.3V
from Activate when grounded to Activate when open
in the software configuration
J3-6
GND
System Ground. Same as J2-4
J3-7
MIC PWR
Provides 12VDC to power a Line Level Microphone

Page 6
LED Indicators
Intercom LEDs
There are four LEDs present on the curved bezel on the front of the product.
•The blue LED indicates that the IP7-FX 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
20x per
second
On
Flashing
Sending Audio
On
On
On
Attempting to connect to make a
connection to a Server or unit has not
been configured
Flashing 4x
per second
On
LAN connection is inactive. The RJ45
may be unplugged
Flashing 4x
per second
Off
Device has reported its configuration on
a discovery request or connection. Fast
flash will stop after 20 seconds
Fast Flash
20x per
second
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