Clear One XAP 400 User manual

www.gentner.com Audio Products
XAP 400 Audio Conferencing System
ClearOne Communications ~ 1825 Research Way, Salt Lake City, UT 84119 ~ tel [phone] ~ fax [phone]
Installation & Operation Manual

XAP™ 400 Audio Conferencing System
Installation & Operation Manual

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Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760
© 2002 ClearOne Communications, Inc. All
rights reserved. No part of this document
may be reproduced in any form or by any
means without written permission from
ClearOne Communications. Printed in the
United States of America. ClearOne
Communications reserves specific privileges.
Information in this document is subject to
change without notice.
XAP 400 Installation and
Operation Manual
ClearOne Part No. 800-151-201
July 2002 (Rev. 2.1)

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XAP 400 Installation and Operation Manual
Table of Contents
CHAPTER 1: Introduction . . . . . . . . . . . . . . . . . . . . . . . .1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Professional Services Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Product registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Product returns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Controls and Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Front panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Rear panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Networking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Expansion bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Operational Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Telephone line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Equipment placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
CHAPTER 2: Installation . . . . . . . . . . . . . . . . . . . . . . . . . .9
Hardware Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
To connect the unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Networking Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Expansion bus connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Device IDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Mixer mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
LCD Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
LCD menu tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
System menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
RS-232 menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Meter menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Inputs menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Outputs menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

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CHAPTER 3: System Configuration . . . . . . . . . . . . . . . . . .21
G-Ware Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Creating floppy disk copies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Installing G-Ware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Site Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Creating a new site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Adding a XAP 400 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Configuring Unit Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
G-Ware Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Flow Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Matrix Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Audio Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Expansion bus O–Z routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Process A–D routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Cross point attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Matrix report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Inputs and outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Inputs 1–4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Inputs 5–8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Outputs 1–9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Expansion Buses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
From Expansion Bus O–Z . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
To Expansion Bus O–Z . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
Processing A–D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
Telco Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
To configure telco settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Telco Transmit and Receive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
Telco Transmit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
Telco Receive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
CHAPTER 4: Advanced Configuration . . . . . . . . . . . . . . . . .59
Presets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
Creating Presets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
Running presets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64

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Running multiple presets simultaneously . . . . . . . . . . . . . . . . . . . . .64
Macros . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
Creating macros . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
Editing macros . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
Running macros . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
CHAPTER 5: Operation . . . . . . . . . . . . . . . . . . . . . . . . . .71
Using the XAP 400 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
To answer a call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
To make and disconnect a call . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
Using the Dial interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
To make and disconnect a call . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
To dial multiple numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
To mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
Touch-tone dialing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74
Signal Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74
Document Compare Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
Print Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
Copy and paste settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
GFirm Firmware Upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
G-Ware Switcher . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
Message Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
Monitoring views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
Gate View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
Meter Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
Telco meters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83
CHAPTER 6: Control . . . . . . . . . . . . . . . . . . . . . . . . . . . .85
GPIO Builder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85
Control/Status A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85
Remote Builder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86
XAP IR Remote . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86
ClearOne Control Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87
RS-232 Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90
Remote modem access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90

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Serial commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90
Command strings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91
APPENDICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
Appendix A: Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
Appendix B: Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95
Appendix C: Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99
Appendix D: Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101
Appendix E: Serial Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102
Appendix F: Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .144
Appendix G: Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .146
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .150
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .160

Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760
CHAPTER 1: Introduction
Congratulations on purchasing the XAP™ 400 Audio Conferencing System. The
XAP 400 combines a highly advanced eight-by-eight digital matrix mixer that
features Gentner
®
Distributed Echo Cancellation
®
, noise cancellation, and audio
processing with a single-line digital telephone hybrid. This combination provides the
highest quality audio for a variety of audio and video conferencing applications—all
in a single one-rack unit.
• Gentner Distributed Echo Cancellation—four microphone/line echo
cancellers remove echo in even the most difficult environments.
• EC Reference summing enables the XAP 400 to reference various signals for
an echo cancellation reference without requiring a dedicated output.
• Noise cancellation reduces background noise such as that caused by fans or
air conditioning.
• Four independent processing blocks, each with 15 filters, delay, and
compressors, provide pinpoint audio configuration.
• Four mic/line inputs, four line inputs, and eight outputs.
• Enhanced expansion bus provides network capabilities. Eight XAP 400s or
XAP 800s can be networked for up to 64 microphone inputs.
• Fully configurable matrix which allows you to route any input to any output
or combination of outputs.
• Front panel control of mute and gain on inputs and outputs.
• Safety mute button on the toolbar that mutes all outputs if feedback occurs
during the configuration process.
• ClearOne’s 100% digital signal processing (DSP) technology ensures
crystal-clear audio with the deepest, most reliable hybrid null.
• International configuration of telephone hybrid setting
• Built-in telephone interface with:
~ Telco noise cancellation
~ Touch-tone dialing capability (40 character dial string)
~ Full-time telco echo cancellation with 31 millisecond tail time
CHAPTER 1: Introduction
Features

Introduction ~ Professional Services Group
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Professional Services Group
If you need any additional information on how to install, set up, or operate your
system, please contact us at one of the locations listed below. We welcome and
encourage your comments so we can continue to improve our products and serve
your needs.
ClearOne Communications ~ 1825 Research Way ~ Salt Lake City, Utah 84119
Technical Support
Telephone: [phone](USA) or 1.801.974.3760
Fax: [phone]
E-mail: [email protected]
Web site: www.clearone.com
Sales and Customer Service
Telephone: [phone] (USA) or 1.801.975.7200
Fax: [phone] (USA) or 1.801.977.0087
E-mail: [email protected]
ClearOne Communications EuMEA GmbH
Leonhardstr. 16-18, D-90443 Nuremberg, Germany
Telephone: [phone]
Fax: [phone]
E-mail: [email protected]
~ Selectable caller automatic level control (ALC)
~ Adjustable dial tone, DTMF attenuation
~ Continual adaptation to telephone line conditions
~ Digital anti-alias filter minimizes hum and Central Office switching noise
~ Analog telephone line compatibility
• 10W speaker amp output.
• Program and operate with a connected PC or any other type of serial remote
control device via expansion bus or RS-232 port.

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Introduction ~ Unpacking
Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760
Product registration
Please register your XAP 400 online by visiting ClearOne Technical Support at
www.clearone.com. When your product is properly registered, ClearOne
Communications is better able to serve you should you require technical assistance.
Registration information is also used to notify you of upgrades and new product
information.
Product returns
All product returns require a return authorization (RA) number. Please contact
ClearOne Technical Support before attempting to return your XAP 400 unit.
ClearOne is not responsible
for product damage
incurred during shipment.
You must make claims directly with
the carrier. Inspect your shipment
carefully for obvious signs of
damage. If the shipment appears to
be damaged, retain the original
boxes and packing material for
inspection by the carrier. Contact
your carrier immediately.
Unpacking
Ensure that the following items were received with your shipment:
!
Figure 1.1. Equipment included with XAP 400 unit

Figure 1.2. XAP 400 front-panel controls
Introduction ~ Controls and Connections
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Controls and Connections
Front panel
The XAP 400 front-panel controls perform the following functions:
A. LCD. The LCD is used for numeric display of audio levels, gain readouts,
and limited set-up and programming functions. See page 13.
B. Enter/▲▼/ESC. These buttons are used to navigate the XAP 400’s menu
system.
C. LED Meter. The LED bar meter is displays the audio level of a selected
input, output, or processing channel of the XAP 400. The audio level of
Output 8 is displayed by default. See page 16.
D. Meter. The Meter button takes you directly to the Meter branch of the XAP
400’s LCD programming tree. See page 16.
E. Mic On LED. These LEDs indicate microphone gate status.
F. On LED/button. The bicolor LED on the button illuminates green when the
hybrid is on. The On button connects the XAP 400 to the telephone line and
automatically adapts the hybrid to the line. Pressing and holding the On
button for more than a half-second while the hybrid is active will readapt
the hybrid to the telephone line.
G. Off LED/button. The bicolor LED on the button illuminates red when the
hybrid is off. The Off button disconnects the hybrid from the telephone line.

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Rear panel
The XAP 400 rear-panel connectors perform the following functions:
A. Power. The AC power cord input is a IEC type connector allowing
100–240VAC, 50/60Hz.
B. Inputs 1–4. These Phoenix-type connection blocks are for mic and/or line
level inputs.
C. Outputs 1–8. These Phoenix-type connection blocks are for line level
outputs that may be configured for any combination of gated and non-gated
inputs, as well as a mix of mic and line level inputs.
D. Inputs 5–8. These Phoenix-type connection blocks are for line level inputs.
E. Expansion Bus In, Out. This RJ-45 connector is used to connect XAP
units. G-Ware is capable of accessing and controlling an expansion bus
network of up to eight XAP 400/800/PSR1212 units and 16 XAP TH2
units, where the total number of microphone inputs does not exceed 64. The
expansion bus supports a distance of up to 80 feet between each connected
XAP 400/800 or PSR1212.
F. RS-232. This female DB9 serial port connects the XAP 400 to a PC, modem,
or other custom remote controller. For serial commands, see page 102.
G. Control/Status Ports A and B. These two female DB25 connectors are for
general purpose input/output (GPIO) control of custom or unique control
devices. The control devices access the command set for the XAP 400 and
can be used for common functions such as volume control, muting, preset
changes, room combining, etc. Devices can be connected to either port.
For instructions on how to program the control and status pins, see the
GPIO section on page 85. The default settings allow control and status of
inputs, outputs, volume, and presets. These pins are active low. For pinout
and default information, see Appendix B.
Figure 1.3. XAP 400 rear-panel connectors

Introduction ~ Networking
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H. Speaker. This is a 10W power amp connector. A 4–16Ωspeaker can be
directly connected to the XAP 400, eliminating the need for an external
power amplifier.
I. Telco Line. This RJ-11 connector provides connection of a standard analog
telephone line to the hybrid.
J. Telco Set. This RJ-11 connector allows connection to a standard telephone
set. Tip and ring from the phone line are present at this connector when the
hybrid is off. Tip and ring from the phone line are not present at this point
when the hybrid is on.
K. RS-485 Remote Panel A/B Port. These four-pin Phoenix connector ports
allow you to control the XAP 400 with the ClearOne Control Panel or XAP
IR Remote.
Power is supplied through the RS-485 ports to the remote Control Panels
from the XAP 400. This power is limited to a total of 300mA at 15 volts
for each connector. Over-current protection is provided on the +15V pins to
prevent damage in the event of shorting. External power can be provided to
control devices when more current is required. See page 100 for maximum
cable run distances when using ClearOne Control Panels.
Expansion bus
The digital mix-minus expansion bus (RJ-45 LAN) is used to connect up to eight
XAP 800/400s and 16 XAP TH2 units, where the total number of microphone inputs
does not exceed 64. The maximum distance between interconnected XAP 800/400 or
PSR1212 units is 80 feet (24 meters). Connecting a XAP TH2 must not increase the
cable length between two PSR1212s, XAP 800s and/or XAP 400s beyond 80 feet.
ClearOne recommends that category five twisted-pair (10BaseT LAN) cable be used.
The expansion bus (E-bus) allows audio routing between destinations on the
E-bus network. The E-bus contains 12 independent digital audio buses labeled O–Z
which can route mic or line level inputs in any combination across the E-bus
network. The O–Z buses are divided into two groups (O–R and S–Z) based on their
capabilities and default settings. The E-bus also contains four PA adapt/acoustic
echo cancellation reference buses, four global gating buses, and one control bus.
•O–R buses. These four audio buses are defaulted as the mic mix buses; they
can communicate the NOM count and mic mixing parameters across the
network to other XAP 400s. All gated mics are routed to the 0-bus by default.
Networking
The latency or propagation
delay is <1ms.
✍

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Introduction ~ Operational Requirements
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Power
The XAP 400 automatically accommodates voltage requirements of 100–240VAC,
50/60Hz, 15W.
Telephone line
The XAP 400 model operates on a standard analog telephone line and connects to
the telephone system with a standard RJ-11C modular jack. If you do not have an
RJ-11C jack where you want to install your XAP 400, call your telephone company
for installation.
The XAP 400 can be configured to meet compliance requirements of different
countries via the G-Ware software. See page 25.
Operational Requirements
Warning: The country code
must be set correctly in
G-Ware to ensure that the
unit operates properly when
connected to the telco network and
that it complies with the country’s
telco requirements. Changing this
code to a country other than the
intended country of operation might
cause the XAP 400 to be non-
compliant.
!
•S–Z buses. These eight buses are defaulted as auxiliary mix buses. They
are used to route auxiliary audio, such as from a CD player or VCR, to and
from other units on the network. These buses are also used as mic mix buses
when NOM count is not required.
•PA Adapt/Acoustic Echo Cancellation Reference buses. These buses
allow an input from a XAP 400 to reference an output on another linked
XAP 400/800. See PA Adapt and AEC Reference on page 33 for more
information.
•Global Gating Groups A-D buses. These mix-minus buses are defined as
microphone gating groups which support first-mic priority, maximum
number of mics, etc. and work across all linked XAP 400/800s. Unlike the
audio buses, they contain only mic status and gate parameters. See page 41
for more information about gating groups.
•Control bus. The control bus is an independent channel from the E-bus’s
audio channel; it uses a different pair of wires on the same E-bus cable. This
allows control information to pass even if the units are not using the audio
link. The XAP 400 supports the full set of commands through the control bus.

Introduction ~ Operational Requirements
8
Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760
Equipment placement
The XAP 400 models are designed for installation in a standard 19-inch equipment
rack. You can also purchase side panels for desktop placement. See Appendix D for a
list of accessories.
Environmental
The XAP 400 can be safely operated in a room with varying temperatures between
32 °F/0 °C and 110 °F/43 °C.

Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760
The XAP 400 is designed for easy installation and setup. All connections are made
through rear-panel connectors. This chapter provides instructions on installing the
units and making initial connections, creating an expansion bus (E-bus) network,
assigning device ID numbers, selecting the mixer mode, and using the LCD menu.
The diagram below illustrates the typical connections that are made for a single-unit
XAP 400 system. The default routing settings in the G-Ware Matrix Screen allow
the XAP 400 to work out of the box for this type of installation.
CHAPTER 2: Installation
Figure 2.1. XAP 400 installation diagram
Hardware Setup

Installation ~ Hardware Setup
10
Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760
To connect the unit
1. Place the unit in a standard 19-inch rack and attach it securely.
2. Connect your telephone line from the wall jack to the RJ-11C Line jack [I].
3. Plug your telephone set into the RJ-11C Set jack [J].
4. If you are using a custom controller for control and status, plug it into the
DB25 Control/Status A or B port [G].
If you are using an external RS-232 controller, connect it to the
RS-232 port [F].
5. Wire the inputs and outputs to the XAP 400 using the provided three-
terminal Phoenix push-on connectors. These connectors are designed for
easy wiring; simply insert the desired wire into the appropriate connector
opening and tighten down the top screw.
• Inputs 1–4 [B] Mic or line level inputs
• Inputs 5–8 [D] Line level inputs only
• Outputs 1–8 [C] Line level outputs
6. If you are using a ClearOne Remote Panel, wire it to the RS-485 port [K]
using the provided four-terminal Phoenix push-on connectors.
7. Connect the speaker wire to the + (red) and – (black) binding post
connectors. A 4–16Ωspeaker can be directly connected to the XAP 400,
eliminating the need for an external power amplifier.
8. Plug in the XAP 400 to complete the installation. The power output [A] will
operate at any level between 100–240VAC and 50–60Hz.
If you are installing only one XAP 400 and are not connecting it to any other XAP
or PSR1212 units, you have completed the hardware installation.
Figure 2.2. XAP 400 rear-panel connectors
The three terminals in
the Phoenix connector
correspond with the rear-
panel audio contacts (from left to
right): + (positive), – (negative),
and
 (ground).
✍
Figure 2.3. Phoenix push-on connector

11
Installation ~ Networking Units
Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760
Expansion bus connections
Using the Expansion Bus ports (RJ-45), you can connect up to eight XAP 800/400s
and 16 XAP TH2 units, where the total number of microphone inputs does not
exceed 64. Make connections between units in daisy-chain fashion using the short
RJ-45 jumper. If your units are further apart, use category five twisted-pair cable.
The maximum distance between interconnected XAP 800/400 or PSR1212
units is 80 feet (24 meters). Expansion bus cable length is calculated between
XAP 800s/400s and PSR1212s. The cable connecting a XAP TH2 to the network
is included in the cable length between the XAP 800 or XAP 400. For example, if
the cable from the XAP 400 to the XAP TH2 is 50 feet and the cable from the
XAP TH2 to the XAP 800 is 50 feet, then the total length between the XAP 400
and XAP 800 is 100 feet which is beyond the maximum 80-foot limit.
To create an expansion bus network
1. Plug the expansion bus terminator in the Expansion Bus In connector of
the first unit in the network.
2. Connect the RJ-45 jumper cable (or Cat 5 twisted pair cable) to the
Expansion Bus Out connector of the first unit in the network and
Expansion Bus In connector of the second unit. Continue connecting units
in the same fashion.
3. Plug the expansion bus terminator in the Expansion Bus Out connector on
the final unit to complete the network connections.
If the E-bus network is not connected properly, the front panel LEDs will
flash on the units that are physically connected to the network. To correct
the problem, check for broken connections and reconnect the expansion bus
cables.
Figure 2.4. E-bus connection diagram
Networking Units
ClearOne recommends that
the first unit in your E-bus
network be a XAP 400 or
XAP 800 rather than a XAP TH2.
✍
RS-232 system-wide con-
trol can be provided by any
unit in the network.
✍

Installation ~ Networking Units
12
Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760
Device IDs
Once your expansion bus connections are made (and if you have more than one
XAP 400 at a site), you need to set up a unique expansion bus device ID number—a
network address—for each XAP 400 on the network. As shipped from the factory,
all XAP 400s default as device ID 0.
To assign device IDs
1. Press the front-panel Enter button, then scroll through the menu until the
System menu is visible.
2. Press
Enter , then scroll through the menu until Device ID is visible.
3. Press
Enter , then scroll through the eight (0–7) options. When the desired
Device ID is visible, press
Enter to select it. (You can also set the Device ID
in the Unit Properties window of G-Ware software see page 25.)
4. Repeat this process for each XAP 400 on the expansion bus network.
Mixer mode
There are two mixer mode settings: slave (default) and master. A master unit is not
required in a networked system and in most installations, all units will be slaves.
Master units ignore audio from upstream units. This prevents audio from being
received from units above the master unit in the network. However, global control of
the system is still maintained by whichever XAP 400/800 or PSR1212 unit is
connected to a control device through its RS-232 or RS-485 ports. Control is not
affected by master/slave designations.
In Figure 2.5, the third unit in the network is a master. It prevents the audio
from the first and second units from being passed down the network chain.
Likewise the second master unit in the network will not pass on the audio from the
unit before it. The third unit provides system-wide control through a connection to
its RS-232 port.
To select a mixer mode
1. Press the front panel Enter button and scroll through the menu until System
menu is visible. Press Enter to select the menu.
2. Scroll through the System menu and select Mixer Mode.
3. Select the mixer setting you want to use.
Repeat for additional units.
If the same device ID is
assigned to more than one
unit on the E-Bus network,
the Meter LED “+12” will flash
red, the Mic LED “2” will flash
green, and the Off LED will flash
red on the affected units. To correct
the problem, change the device ID
on one of the conflicting units.
✍
Figure 2.5. E-bus network with master units
You can also use G-Ware
to select a mixer mode.
See page 25.
✍

13
Installation ~ LCD Programming
Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760
The XAP 400’s front panel is intuitive to operate, thanks to its simple interface: a
2x16 character LCD, menu buttons, and a peak-level LED bar meter. Although most
of the XAP 400’s features are programmed with G-Ware software (see page 23), the
front panel can be used for simple adjustments and meter monitoring.
When power is applied to the XAP 400, the LCD panel will first read
INITIALIZING. If an error is displayed, contact technical support. When
initialization is complete, “XAP 400” is displayed on the top line and “Unit 0” is
displayed on the bottom line.
LCD menu tree
The menu tree features five main menus, each with submenus. These branches
typically end when an adjustable parameter or viewable value is reached. The
diagram below shows the LCD menu tree.
LCD Programming
Pressing ESC at the top of
the tree does nothing.
G-Ware software is
required to complete
system setup.
✍
✍
Figure 2.6. LCD menu tree