Crestron C2N-DAP8 User manual

Crestron C2N-DAP8
Digital Audio Processor
Operations Guide

This document was prepared and written by the Technical Documentation department at:
Crestron Electronics, Inc.
15 Volvo Drive
Rockleigh, NJ 07647
1-888-CRESTRON
Manufactured under license from Dolby Laboratories. “Dolby”, “Pro Logic”, “Pro Logic II”, “Dolby Digital”,
“Dolby Digital 5.1”, and the double-D symbol are trademarks of Dolby laboratories.
Manufactured under license from Digital Theater Systems, Inc. “DTS”, “DTS Digital Surround Sound”, “DTS-ES Extended
Surround”, “DTS Virtual 5.1”, “NEO:5”, and “Neo:6” are trademarks of Digital Theater Systems, Inc.
All other brand names, product names and trademarks are the property of their respective owners.
©2003 Crestron Electronics, Inc.

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Operations Guide – DOC. 8186 Contents •i
Contents
Digital Audio Processor: C2N-DAP8 ............................................................1
Introduction...................................................................................................................1
Features and Functions ....................................................................................1
Surround Sound Modes ...................................................................................2
Parametric Equalizer........................................................................................4
Specifications...................................................................................................5
Physical Description ........................................................................................6
Industry Compliance........................................................................................9
Setup .............................................................................................................................9
Network Wiring ...............................................................................................9
Identity Code .................................................................................................10
Rack Mounting ..............................................................................................13
Hardware Hookup..........................................................................................14
Surround Sound System Setup ...................................................................................18
Test Equipment..............................................................................................19
Crestron Digital Audio Tools ...................................................................19
Setup Procedures ...........................................................................................20
DAT Program Procedures..............................................................................20
Example Program ..........................................................................................33
Programming Software ...............................................................................................39
C2Net-Device Slot in Configuration Manager ..............................................40
Setting the Net ID in Device Settings............................................................41
C2N-DAP8 Symbols in Programming Manager ...........................................41
Uploading and Upgrading...........................................................................................45
Communication Settings................................................................................45
Uploading a SIMPL Windows Program........................................................47
Firmware Upgrade .........................................................................................49
Problem Solving .........................................................................................................50
Troubleshooting.............................................................................................50
Further Inquiries ............................................................................................51
Future Updates...............................................................................................51
Appendix: Advanced Programming Symbols ............................................................52
Return and Warranty Policies .....................................................................................64
Merchandise Returns / Repair Service...........................................................64
CRESTRON Limited Warranty.....................................................................64

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Digital Audio Processor:
C2N-DAP8
Introduction
Features and Functions
The C2N-DAP8 is an eight-channel surround sound processor, designed to work in a
Crestron®2-Series control system. This unit will process either digital audio streams
(S/PDIF) or analog signals, and generate up to 7.1 surround sound preamp outputs.
Designed for the ultimate in home theater entertainment, the C2N-DAP8 provides
multiple surround sound modes for virtually any room size and speaker configuration,
with unmatched accuracy to satisfy the most discerning ear.
The functional summaries below and on the following page highlight the main
features of the C2N-DAP8.
Functional Summary –Audio
• Multiple surround sound modes
• Automatic recognition of digital input audio coded format
• Up to eight channels (7.1) of home theater outputs
• One RJ-45 stereo input/output via CAT5
• Two coax digital inputs (S/PDIF)
• Two TOSLINK™fiber optic digital inputs
• Five local (analog) stereo inputs
• Two stereo output pairs, one with volume/tone control; one fixed
output
• Eight-channel, six-band parametric equalizer per channel
• PC-based software tool to set speaker configuration & bass
management, delay control, input settings, output settings, and
equalizers
• Two-channel audio decoding modes:
Two-channel, Dolby Pro Logic, Dolby Pro Logic II, DTS NEO:6
• Multi-channel audio decoding modes:
Dolby Digital, Dolby Digital EX, DTS 5.1, DTS ES Discrete 6.1,
DTS ES Matrix 6.1

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Functional Summary – Miscellaneous
The CNAMPX-7x200 7-channel, 200 watts per channel surround sound amplifier is
the ideal companion product to the C2N-DAP8 surround sound processor.
The C2N-DAP8 provides digital surround sound processing along with CAT5 head
end/local AV distribution functions. The result is cost-effective surround sound in
any room of the house.
Surround Sound Modes
The C2N-DAP8 provides the following surround sound modes, permitting choice of
the format that best suits the entertainment medium selected, the specific
characteristics of the listening/viewing area, and the personal preferences of the
listener.
Dolby Digital 5.1
Typically, 5.1-channel audio consists of five discrete, full-range main channels (left,
center, right, left surround, and right surround) plus a discrete, band-limited low
frequency effects (LFE) channel for added bass (subwoofer). Dolby Digital
bitstreams deliver full frequency bandwidth main channels, from 3 Hz to 20 kHz,
and a limited frequency bandwidth LFE channel, from 3 Hz to 120 Hz.
Dolby Pro Logic
As a descendent of the advanced technology used in Dolby Stereo theaters, Dolby
Pro Logic Surround decoders give enhanced spatial and directional effects when
used in the home environment. Sophisticated logic steering techniques are used to
extend the impact of the soundtrack over a wider listening area. Wide separation,
smooth dynamic action, and proper spatial imaging are key characteristics of Pro
Logic decoders.
Dolby Pro Logic II
Dolby Pro Logic II creates five full-bandwidth output channels from two-channel
sources. This is done using an advanced, high-purity matrix surround decoder that
extracts the spatial properties of the original recording without adding any new
sounds or tonal colorations.
Movie Mode
The Movie mode is for use with VCRs, television shows, and all programs encoded
in Dolby Surround. The result is an enhanced soundfield that approaches the quality
of discrete 5.1-channel sound.
Music Mode
The Music mode is for use with any stereo music recordings, and provides a wide
and deep sound space. The Music mode includes controls that allow the sound to be
tailored to individual listening tastes.
• RJ-11 for RS-232 control of serial devices, or for
uploading/upgrading firmware for the C2N-DAP8
• Mini-Cresnet for connection to Cresnet devices and main
processor
• Front panel PWR and NET LEDs
• Touch-settable ID capable

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• Center Width. This control allows center-channel sounds to be positioned
between the center speaker and the left/right speakers over a range of eight
steps. Step “3” uses a combination of all three front speakers to give the
best vocal imaging and most seamless soundstage presentation, and is
recommended for most recordings. Step “0” places all center sound in the
center speaker. Step “7” places all center sound equally in the left/right
speakers, just as in conventional stereo.
• Dimension. This control allows the user to gradually adjust the soundfield
either toward the front or the rear. This can be useful to help achieve the
desired balance from all the speakers with certain recordings that may
contain either too much or too little spatial effect. Step “3” is the
recommended setting, which has no effect on the sound. Steps “4” through
“6” gradually move the sound forward, and steps “2” through “0” move the
sound toward the surrounds.
• Panorama. This control extends the front stereo image to include the
surround speakers for an exciting “wraparound” effect with side-wall
imaging. It is particularly effective for recordings that have strong left- or
right-channel elements in the mix, since these are detected and accentuated
by the Panorama process.
All three of the above controls may be used alone or in any combination. After
experimenting with them on a few programs, it is easy to understand their effect and
which settings are preferable.
Dolby Digital EX
Dolby Digital EX creates six full-bandwidth output channels from 5.1 channel
sources by adding a rear center channel. This is done using a matrix decoder that
derives three surround channels from the two in the original recording. The center
rear is matrixed into the rear 2-channels of the 5.1 soundtrack, like what Pro Logic
does with the front three channels in the Pro Logic mode. The decoder takes the right
rear and left rear information, which also contain the center rear information, and
extracts the information so that the center rear channel is active. Thus, sound will be
heard out of the center rear speaker as well as the right rear and left rear speakers.
For best results, Dolby Digital EX should be used with movie soundtracks recorded
with Dolby Digital Surround EX.
DTS 5.1
DTS 5.1 is a multi-channel digital signal format developed by Digital Theater
Systems, Inc., that provides channels for the front left, right, and center, surround left
and right, and LFE. The process used by DTS produces audio tracks that closely
match the original master recording, with very little data compression.
DTS ES Discrete 6.1
With the DTS-ES Discrete 6.1 format, all 6.1 channels, including the surround back
(SB) channel, are recorded independently using a digital discrete system. The main
feature of this format is that because the SL, SR and SB channels are fully
independent, the sound can be designed with total freedom and it is possible to
achieve a sense that the acoustic images are moving about freely among the
background sounds surrounding the listener from 360 degrees. Though maximum
performance is achieved when sound tracks recorded with this system are played
using a DTS-ES decoder, when played with a conventional DTS decoder the SB
channel signals are automatically down-mixed to the SL and SR channels, so none of
the signal components are lost.

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DTS ES Matrix 6.1
With this format, the additional SB channel signals undergo matrix encoding and are
input to the SL and SR channels beforehand. Upon playback, they are decoded to the
SL, SR and SB channels. The performance of the encoder used at the time of
recording can be fully matched using a high precision digital matrix decoder
developed by DTS, thereby achieving surround sound more faithful to the producer's
sound design aims than with conventional 5.1- or 6.1-channel systems. In addition,
the bit stream format is 100% compatible with conventional DTS signals, so the
effect of the Matrix 6.1 format can be achieved even with 5.1-channel signal sources.
When DTS-ES Discrete 6.1 or Matrix 6.1 encoded sources are decoded with a DTS-
ES decoder, the format is automatically detected upon decoding and the optimum
playing mode is selected. However, some Matrix 6.1 sources may be detected as
having a 5.1-channel format, so the DTS-ES Matrix 6.1 mode must be set manually
to play these sources.
DTS Neo:6 Cinema
This mode is optimum for playing movies. Decoding is performed with emphasis on
separation performance to achieve the same atmosphere with 2-channel sources as
with 6.1-channel sources.
This mode is effective for playing sources recorded in conventional surround formats
as well, because the in-phase component is assigned mainly to the center channel and
the reversed phase component to the surround (left, right, and back) channels.
DTS Neo:6 Music
This mode is suited mainly for playing music. The front (left and right) channel
signals bypass the decoder and are played directly, so there is no loss of sound
quality, and the effect of the surround signals output from the center and the
surround (left, right, and back) channels add a natural sense of expansion to the
sound field.
Two-Channel
This mode is used to play stereo source material in its pure unprocessed form.
Low Frequency Effects (LFE)
In 5.1, 6.1, and 7.1 surround formats, the point 1 represents an extra channel for LFE
sounds (120Hz and below) that is decoded and routed to a subwoofer (if present).
The LFE channel signal is added to any other low frequency signals routed to the
subwoofer from channels unable to produce effective low frequency sound.
Parametric Equalizer
The parametric equalizer consists of eight channels (one for each speaker) of six
bandpass filter sections that permit you to correct for acoustic anomalies in the
listening area or in the speakers themselves, and/or to establish preset values that
enhance the sound conditions for favorite music or recording types.
The six bands are identical in function. Each delivers up to 12 dB of boost or
attenuation, has an adjustable bandwidth control (from .02 octaves to 2 octaves), and
a center frequency control range from 10 Hz to 20 KHz. Use each band anywhere in
the audio spectrum, not just pre-selected ranges as typically found on graphic
equalizers. In addition, you can select from among five filter types (low pass, high
pass, EQ Filter, bass shelf, and treble shelf) or select no filter.

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Specifications
The following table summarizes the specifications for the C2N-DAP8.
C2N-DAP8 Specifications
SPECIFICATION DETAILS
Power Requirements 21 Watts (0.875 Amp @ 24 VDC)
Default NET ID 50
Control System Update Files 1, 2
2-Series Control System
Update File Version 3.044.CUZ or later
C2N-DAP8 Firmware C2N-DAP8.1.04.44d.upg or later
Audio I/O
AUDIO
S/PDIF – A, B
OPTICAL – C, D
AUDIO IN – 2 to 6
AUDIO OUT – A
AUDIO OUT – B
AUDIO OUT – FRONT
(L/R), SURROUND (L/R),
BACK (L/R), CENTER,
SUBWOOFER
RJ-45 Stereo differential I/O – Connects to CNX-BIPAD8
2 RCA connectors for coax digital input (S/PDIF)
2 Toslink fiber optic inputs (S/PDIF)
10 RCA connectors for 5 local stereo input sources
Input level = 2.5 VRMS
Input impedance = 50K Ohms
2 RCA connectors for fixed stereo output of analog
crosspoint.
2 RCA connectors for stereo output but with volume/tone
control
- can be used w/TV if surround sound is not active
- Output level = 1.8 VRMS maximum
- THD+N < 0.05% @ unity gain
- S/N <-96 dB @ maximum output level
- Volume control range –80dB to +20 dB
- Output impedance 50 Ohms
8 RCA connectors for 7.1 surround sound output
- Output level = 3 VRMS maximum
- Subwoofer output level = 8.5 VRMS maximum
- THD+N < 0.005% @ unity gain
- S/N <-94dB
- Dynamic range >113dB
- Output impedance 200 Ohms
- Volume control range –80dB to +12dB
Analog to Digital Converters: 24 bit 96KHz
Digital to Analog Converters: 24 bit 192KHz
Frequency Response: 20Hz to 20KHz ±0.2dB
Miscellaneous I/O
RS-232
NET
RJ-11 connector for RS-232 communication; supports baud
rates of up to 115K and RTS/CTS hardware handshaking
Mini-Cresnet for Cresnet connection
Front Panel Indicators 2 LEDs – PWR, NET
Surround Sound Modes PCM up to 96KHz; Dolby Pro Logic; Dolby Pro Logic II;
Dolby Digital 5.1; Dolby Digital EX; DTS 5.1; DTS ES
Discrete 6.1; DTS ES Matrix 6.1; DTS Neo:6 Cinema; DTS
Neo:6 Music
Environmental Temperature 41° to 113°F (5° to 45°C)
Humidity 10% to 90% RH (non-condensing)
Dimensions Height: 3.48 in (8.84 cm) – with optional feet
Width: 19.0 in (48.26 cm) – with ears
17.1 in (43.43 cm) – without ears
Depth: 8.44 in (21.44 cm)
Weight 4.96 lb (2.23 kg)

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1 The latest versions can be obtained from the Downloads | Software Updates section of the Crestron
website (www.crestron.com). Refer to NOTE below.
2 Crestron 2-Series control systems include the AV2, AV2 with Card Cage, CP2, CP2E, PAC2, MP2,
MP2E, PRO2, and RACK2.
NOTE: Crestron software and any files on the website are for Authorized Crestron
dealers and Crestron Authorized Independent Programmers (CAIP) only. New users
may be required to register to obtain access to certain areas of the site (including the
FTP site).
Physical Description
The C2N-DAP8 digital audio surround sound processor is housed in a black
enclosure with labeling on the front and rear panels.
The front panel of the unit includes two standard LEDs (PWR and NET). All
connections to the unit are made through the rear panel.
C2N-DAP8 Physical Views
The dimensions for the C2N-DAP8 are shown in the illustrations on the next page.
For information on audio wiring, refer to “Hardware Hookup” which begins on page
14.

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C2N DAP8RC Overall Dimensions
Input and Output Ports
AUDIO
The RJ-45 AUDIO port is used to transmit and receive analog stereo audio from the
head end.
SPDIF (Coaxial Digital Audio)
These two RCA connectors (A& B) are used for coaxial digital input from local
sources.
OPTICAL
These two Toslink ports (C& D) are used for fiber optic S/PDIF inputs.
AUDIO IN
These ten RCA connectors (2– 6, L& R) provide for five local stereo input sources.

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(Chassis Ground)
Use this chassis screw to connect the audio source(s) common ground(s) to the C2N-
DAP8.
AUDIO OUT
The two RCA connectors labeled Aprovide stereo output of the unit’s analog
crosspoint, without any processing.
The two RCA connectors labeled Bprovide stereo output of analog crosspoint, but
with volume/tone control.
The eight RCA connectors that comprise the SURROUND SOUND OUT group,
provide surround sound encoded output to the FRONT, SURROUND, BACK,
CENTER, and SUBWOOFER channels. Typically, the FRONT, SURROUND,
BACK, and CENTER outputs are routed to a surround sound amplifier such as the
CNAMPX-7X200; the SUBWOOFER output goes to a powered subwoofer.
RS-232
The C2N-DAP8 provides one RJ-11 connector for RS-232 communication with a PC
or third-party serial devices. This port supports baud rates up to 115K and RTS/CTS
hardware handshaking. Data Set Ready (DSR) and Data Terminal Ready (DTR) are
not supported. The pins are configured as shown in the following table.
PIN FUNCTION
1 CTS (Clear to Send)
2 GND
3 RXD (Receive)
4 TXD (Transmit)
5 RTS (Request to Send)
6 Not connected
NET
This four-pin mini-Cresnet connector is used to supply unit power (24VDC) and for
connection to other four-wire devices in the Cresnet system.
SETUP LED and Pushbutton
The SETUP pushbutton and its associated LED are located on the rear panel and are
to be used for setup of the unit’s network ID during the initial configuration of a
Cresnet®system or when the device is being added/replaced. Refer to “Method B
(Touch Settable IDs)” on page 11 for detailed information.
LED Indicators
The front panel PWR (Power) indicator illuminates when the unit is supplied with
24 volts DC from the network. The NET indicator flashes whenever communication
occurs between the control system and the C2N-DAP8 (when the unit is polled on
the network). The NET LED indicates that the current SIMPL Windows program
has a network device defined at the same Net ID as the C2N-DAP8.

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Industry Compliance
As of the date of manufacture, this unit has been tested and found to comply with
specifications for CE marking and standards per EMC and Radiocommunications
Compliance Labelling (N11785).
NOTE: 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 operation.
Setup
Network Wiring
CAUTION: Use only Crestron power supplies for Crestron equipment. Failure to do
so could cause equipment damage or void the Crestron warranty.
NOTE: When installing network wiring, refer to the latest revision of the wiring
diagram(s) appropriate for your specific system configuration, available from the
Downloads | Product Manuals | Wiring Diagrams section of the Crestron website
(www.crestron.com).
When calculating the wire gauge for a network run, the length of the run and the
power factor (power usage in watts) of each network unit must be taken into
consideration. If multiple network units are to be daisy-chained, the power factors of
each unit must be added to determine the power factor of the entire chain. The length
of the run in feet and the power factor of the run (in watts) should then be used in the
following resistance equation.
R = Resistance (refer to table below).
L = Length of run (or chain) in feet.
PF = Power factor of entire run (or chain).
R < L x PF
40,000 Where:
The required wire gauge should be chosen such that the resistance value is less than
the value calculated in the resistance equation. Refer to the table after this paragraph.
Wire Gauge Values
RESISTANCE (R) WIRE GAUGE
416
618
10 20
15 22
13 Doubled CAT5
8.7 Tripled CAT5
NOTE: All network wiring must consist of two twisted-pairs. One twisted pair is the
+24V conductor and the GND conductor; the other twisted pair is the Y conductor
and the Z conductor.

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NOTE: When daisy-chaining Cresnet units, strip the ends of the wires carefully to
avoid nicking the conductors. Twist together the ends of the wires that share a pin on
the network connector, and tin the twisted connection. Apply solder only to the ends
of the twisted wires. Avoid tinning too far up the wires or the end becomes brittle.
Insert the tinned connection into the Cresnet connector and tighten the retaining
screw. Repeat the procedure for the other three network conductors.
Identity Code
Every equipment and user interface within the network requires a unique identity
code (NET ID). These codes are recognized by a two-digit hexadecimal number
from 03 to FE. The NET ID of each unit must match an ID code specified in the
SIMPL Windows program. Refer to “Setting the Net ID in Device Settings” on page
41 for details of the SIMPL Windows procedure.
Refer to the note on page 45 for
a definition of Viewport.
The NET ID of the C2N-DAP8 has been factory set to 50. The NET IDs of multiple
C2N-DAP8s in the same system must be unique. NET IDs are changed from a
personal computer (PC) via the Crestron Viewport.
NOTE: For detailed information on establishing communication between the PC and
control system, refer to “Communication Settings” on page 45. If communication
cannot be established, refer to the “Troubleshooting Communications” section in the
respective Operations Guide for the control system.
There are two different methods for setting the C2N-DAP8 NET IDs:
Method A (Cresnet address-settable ID), described below, requires that a single unit
be the only network device connected to the control system. This method is
necessary with a 2-Series control system upgrade file (CUZ) version prior to 3.008.
It is optional with later versions of the operating system.
Method B (Touch-Settable IDs), which begins on page 11, applies to C2N-DAP8s in
a Cresnet system with 2-Series control system upgrade file (CUZ) version 3.029 or
later. These upgrades enable Touch-Settable ID (TSID) functionality, which makes it
possible for the control system to recognize a network device via its serial number,
which is stored in the device’s memory. This method does not require that any
devices be disconnected from the network; NET IDs may be set with the entire
Cresnet system intact. This method requires the use of the Crestron Viewport version
3.35 or later.
Use the appropriate method to set the C2N-DAP8 NET ID.
Method A (Cresnet address-settable ID)
1. Ensure that the C2N-DAP8 is the only device connected to the control
system.
2. Open the Crestron Viewport.
3. From the Viewport Functions menu, select Set Network ID. The
Viewport will check the baud rate and then display the "Set Network
ID" window.
4. In the "Set Network ID" window, select the C2N-DAP8 from the
Current Network Devices text window.
5. Select the new NET ID for the C2N-DAP8 from the Choose the new
network ID for the selected device (Hex): text box.

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6. Click Set ID to initiate the change. This will display the message "ID
command has been sent.”
7. In the "Command Complete" window, click OK.
8. In the Current Network Devices window, verify the new Net ID code.
(The Net ID can also be verified from the Diagnostics menu. Select the
Report Network Devices command.)
9. In the "Set Network ID" window, click Close.
NOTE: The new NET ID code may also be verified by selecting Diagnostic |
Report Network Devices in the Viewport (alternately, select F4).
10. Repeat this procedure for each C2N-DAP8 to be added to the system.
Method B (Touch Settable IDs)
Before using this method, you should have a list of all current network devices and
their Net IDs, to avoid assigning duplicate IDs.
Set Net ID by TSID
These procedures are for TSID-enabled network devices during the initial
configuration of a Cresnet system or when such devices are being added/replaced.
1. Ensure that all C2N-DAP8s are connected to the control system.
2. Open the Crestron Viewport version 3.35 or later.
3. From the Viewport menu, select Functions | Assign Cresnet ID by
Serial Number. The “Set Net ID by TSID” window appears. The
window is first displayed with the data fields empty.
“Set Net ID by TSID” Window

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4. Click on the Search for Touch Settable Devices button. The system
searches the network and lists all TSID-enabled devices found. The list
is similar to the report produced by pressing F4 (Report Network
Devices); the first eight digits of each line constitute the TSID number
(hexadecimal form of the serial number).
5. As you enter either the serial number or TSID number of the device
that requires a change, the corresponding TSID or serial number
automatically appears in its appropriate field, and the list scrolls to and
highlights the device listing. The listing should show the device’s
current Cresnet ID.
6. Enter the Cresnet ID that the device should be set to and click OK. The
number you enter should appear on the list.
CAUTION: This function does not prevent you from setting duplicate IDs. Be sure
to check current assignments before entering the desired Cresnet ID number.
Serial Number to TSID Conversion
This utility is useful in a case where there are multiple devices of the same type on a
network, you need to locate a particular one, you know the TSID but not the serial
number, and your site installation list is based on device serial numbers. In this (or
the reverse) situation, do the following:
1. Open the Crestron Viewport.
2. From the Viewport menu, select Functions | Serial Number 
TSID Conversion Tool. The “Serial Number TSID Conversion
Tool” window is displayed.
“Serial Number to TSID Conversion Tool” Window
3. Enter the serial number or TSID number as instructed; press the
appropriate button to obtain the corresponding number.
NOTE: Enter serial numbers, including spaces, exactly as they appear on the unit
label. Alpha characters in serial numbers or TSID numbers may be entered in upper
or lower case.

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Rack Mounting
WARNING: To prevent bodily injury when mounting or servicing this unit in a
rack, you must take special precautions to ensure that the system remains stable. The
following guidelines are provided to ensure your safety.
 If the rack is provided with stabilizing devices, install the stabilizers before
mounting or servicing the unit in the rack.
 When mounting this unit assembly in a partially filled rack, load the rack from
the bottom to the top with the heaviest component at the bottom of the rack.
NOTE: If rack mounting is not required, rubber feet are provided for tabletop
mounting or stacking. Apply the feet near the corner edges on the underside of the
unit.
NOTE: Reliable grounding of rack-mounted equipment should be maintained.
Particular attention should be given to supply connections other than direct
connections to the branch circuit. (e.g., use of power strips).
Two “ears” are provided with the unit and must be installed so that it can be rack
mounted. Refer to the illustration below and complete the procedures to attach ears
to the unit. The only tool required is a Phillips screwdriver.
Ear Attachment for Rack Mounting
1. Using a Phillips screwdriver, remove and retain the three side screws
closest to the front panel.
2. Position a rack ear so that its mounting holes align with the vacated
holes, and secure the ear to the unit with the three screws from step 1.
3. Repeat the procedure to attach the remaining ear to the opposite side.

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Hardware Hookup
In addition to its capabilities as a surround sound processor, the C2N-DAP8 provides
tremendous flexibility in audio signal distribution. Refer to “Audio Distribution”
below for detailed information. Refer to the basic hookup diagram following this
paragraph, and, other than making the power connection (NET) last, complete the
connections in any order.
NOTE: Refer to “Network Wiring” on page 9 when making connections to the port
labeled NET.
Typical Hookup Connections for C2N-DAP8
Audio Distribution
The C2N-DAP8 provides local inputs and outputs for audio. Typically, the C2N-
DAP8 receives analog audio from the CNX-BIPAD8 via CAT5 cabling. In addition,
it receives digital audio and analog audio from local sources via standard RCA
connections and Toslink fiber optic connectors. The unit’s built-in audio matrix
switcher distributes these inputs to local outputs.
NOTE: The coax connection to audio inputs A and B and the optical connection to
inputs C and D carry the same signal type, S/PDIF, but Toslink cabling is only good
up to a maximum of 10 meters; the coax version can go 10 - 15 meters. This should
be considered in your hookup planning.
The following paragraphs and the audio routing diagram on the next page describe
signal distribution arrangements that are typical for the C2N-DAP8. Refer also to the
Typical Surround Sound Configuration diagram on page 16.
Distribution of Analog Audio to/from the Head End
Analog audio from distributed source devices is supplied by the CNX-BIPAD8 (or
CNX-PAD8) via CAT5 to the C2N-DAP8, then passed through a Crestron amplifier
(CNAMPX-7X200), and delivered as speaker level audio to the local set of speakers.
Analog audio can be directed from the C2N-DAP8 back to the CNX-BIPAD8
directly, via CAT5.

Crestron C2N-DAP8 Digital Audio Processor
Operations Guide – DOC. 8186 Digital Audio Processor: C2N-DAP8 •15
Audio Routing

Digital Audio Processor Crestron C2N-DAP8
16 •Digital Audio Processor: C2N-DAP8 Operations Guide - DOC. 8186
Typical Surround Sound Configuration