User Manual
AES-3
Digital A udio Interface Car d
9350 -7745-000 Rev B 06/2003
AES-3 Digital Audio Interface Card
2
AES-3 Digital Audio Interface Card
Proprietary Notice
The RTS product information and design disclosed herein were originated by and are the property of Telex Communications, Inc.
Telex reserves all patent, proprietar y design, manufacturing, reproduction, use and sales rights thereto, and to any article disclosed
therein, except to the extent rights are expressly granted to others.
Copyright Notice
Copyright 2003 by Telex Communications, Inc.. All rights reserved. Reproduction in whole or in part without prior written permission
from Telex is prohibited.
UNPACKING AND INSPECTION
Immediately upon receipt of the equipment, inspect the shipping container and the contents carefully for any discrepancies or
damage. Should there be any, notify the freight company and the dealer at once.
WARRANTY INFORMATION
RTS products are warranted by Telex Communications, Inc. to be free from defects in materials and workmanship for a period of
three years from the date of sale. The sole obligation of Telex during the warranty period is to provide, without charge, parts and labor
necessary to remedy covered defects appearing in products returned prepaid to Telex. This warranty does not cover any defect,
malfunction or failure caused beyond the control of Telex, including unreasonable or negligent operation, abuse, accident, failure to
follow instructions in the Service Manual or the User Manual, defective or improper associated equipment, attempts at modification
and repair not authorized by Telex, and shipping damage. Products with their serial numbers removed or effaced are not covered by
this warranty. To obtain warranty service, follow the procedures entitled “Procedure For Returns” and “Shipping to Manufacturer for
Repair or Adjustment”. This warranty is the sole and exclusive express warranty given with respect to RTS products. It is the responsibility of the user to determine before purchase that this product is suitable for the user’s intended pur pose.
ANY AND ALL IMPLIED WARRANTIES, INCLUDING THE IMPLIED WARRANTY OF MERCHANTABILITY ARE LIMITED TO THE
DURATION OF THIS EXPRESS LIMITED WARRANTY. NEITHER TELEX NOR THE DEALER WHO SELLS
RTS PRODUCTS IS LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND.
CUSTOMER SUPPORT
Technical questions should be directed to:
Customer Service Department
RTS/Telex
12000 Portland Avenue South
Burnsville, MN 55337 U.S.A.
Telephone: (800) 392-3497
Fax: (800) 323-0498
RETURN SHIPPING INSTRUCTIONS
PROCEDURE FOR RETURNS
If a repair is necessary, contact the dealer where this unit was purchased.
If repair through the dealer is not possible, obtain a
RETURN AUTHORIZATION from:
Customer Service Department
Telex Communications, Inc.
Telephone: (877) 392-3497
Fax: (800) 323-0498
DO NOT RETURN ANY EQUIPMENT DIRECTLY TO THE FACTORY WITHOUT FIRST OBTAINING A RETURN AUTHORIZATION. Be
prepared to provide the company name, address, phone number, a person to contact regarding the repair, the type and quantity of
equipment, a description of the problem and the serial number(s).
SHIPPING TO MANUFACTURER FOR REPAIR OR ADJUSTMENT
All shipments of RTS products should be made via United Parcel Service or the best available shipper, prepaid. The equipment
should be shipped in the original packing carton; if that is not available, use any suitable container that is rigid and of adequate size.
If a substitute container is used, the equipment should be wrapped in paper and surrounded with at least four inches of excelsior or
similar shock-absorbing material. All shipments must be sent to the following address.
Telex Communications Inc.
8601 East Cornhusker Hwy
Lincoln, NE 68507
Attn Service Dept.
Upon completion of any repair the equipment will be returned via United Parcel Service or specified shipper collect.
3
AES-3 Digital Audio Interface Card
End-User License Agreement for Telex® Software
IMPORTANT! - Please read this document carefully before using this product.
THIS DOCUMENT STATES THE TERMS AND CONDITIONS UPON WHICH TELEX
COMMUNICATIONS, INC. (“the COMPANY”) OFFERS TO LICENSE THE INSTALLED SOFTWARE OR
PROGRAM (“the SOFTWARE”) WITH THE PRODUCT IN WHICH IT WAS INSTALLED. YOU ARE AGREEING TO BECOME BOUND BY THE TERMS OF THIS AGREEMENT. IF YOU DO NOT AGREE TO THE
TERMS OF THIS AGREEMENT, DO NOT USE THIS PRODUCT. PROMPTLY RETURN THE PRODUCT TO
THE PLACE WHERE YOU OBTAINED IT FOR A FULL REFUND.
The installed software as supplied by the Company is licensed, not sold, to you for use only under the terms of
this license, and the Company reserves all rights not expressly granted to you. You own the product or other
media on or in which the Software is originally or subsequently recorded or fixed, but the Company retains
ownership of all copies of the Software itself.
1. License: This license allows you to use the Software for internal purposes only on a single
product in which it was installed.
2. Restrictions: (a) You may not market, distribute or transfer copies of the Software to others or
electronically transfer or duplicate the Software. YOU MAY NOT REVERSE ENGINEER,
DECOMPILE,DISASSEMBLE, MODIFY, ADAPT, TRANSLATE, RENT, LEASE OR LOAN
THE SOFTWARE OR CREATE DERIVATIVE WORKS BASED ON THE SOFTWARE OR
ANY ACCOMPANYING WRITTEN MATERIALS. (b) The Software and the accompanying
written materials are copyrighted. Unauthorized cop ying of the Software , including portions
thereof or the written materials, is expressly forbidden. (c) You understand that the Company
may update or revise the Software and in so doing incurs no obligation to furnish such up
dates to you.
3 .Limited Warranty: The Company does not warrant that the operation of the Software will meet
your requirements or operate free from error . The Company DISCLAIMS ALL O THER
WARRANTIES AND CONDITIONS EITHER EXPRESS OR IMPLIED, INCLUDING THE
WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NON-INFRlNGEMENT OF THIRD PARTY RIGHTS.
4 .Limited Liability: The liability of the Company for any claims arising out of this License based
upon the Software, regardless of the form of action, shall not exceed the greater of the license
fee for the Software or $50.
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AES-3 Digital Audio Interface Card
Table of Contents
Front Matter
Proprietary Notice ....................................................................................................................................... 3
Copyright Notice .........................................................................................................................................3
UNPACKING AND INSPECTION ..............................................................................................................3
WARRANTY INFORMATION .....................................................................................................................3
CUSTOMER SUPPORT ............................................................................................................................3
RETURN SHIPPING INSTRUCTIONS ......................................................................................................3
PROCEDURE FOR RETURNS .................................................................................................................3
SHIPPING TO MANUFACTURER FOR REPAIR OR ADJUSTMENT.......................................................3
End-User License Agreement for Telex® Software .....................................................................................4
General Description of the AES-3 Digital Audio Interface Card.......................................... 7
Features............................................................................................................................... 7
Specifications....................................................................................................................... 8
Installation of AES-3 Card into the ADAM System .............................................................. 9
Fail LED ............................................................................................................................... 9
DIP Switches ..................................................................................................................... 10
Switches and Connections ................................................................................................ 10
Download AES-3 firmware through AZedit ....................................................................... 11
AES-3 Backcard ................................................................................................................ 13
5
AES-3 Digital Audio Interface Card
6
AES-3 Digital Audio Interface Card
General Description of the AES-3 Digital Audio Interface Card
AES (Audio Engineering Society) is a consortium developed to set standards to provide a common interface
between audio devices. Setting standards by which audio equipment is developed insures compatibility
between the devices adhering to these standards. This compatibility allows interconnecting equipment without
sacrificing degradation in performance or functionality .
The AES-3 Digital Audio Interface Card expands connectivity to the ADAM™ intercom system by supporting
AES-3 standards. The AES-3 card is capable of 8 audio channels in and out, along with eight AES-3 connections, making it compatible with most third party AES-3 audio devices. Also, it supports all standard hot
swappab le and configurable features within the ADAM™ Intercom family, allowing complete control and
monitoring through AZ-Edit.
The AES-3 card supports input sample rates from 16kHz to 108 kHz with up to 24 bit audio. Therefore any
AES-3 Audio feed will be correctly receiv ed, independent of the source console’s sample rate. In turn, outputs
are compatible with all AES-3 recommended procedures.
The AES-3 card, mated with an AES-3-ID back card, is an ideal solution for MADI router applications . This
allows long-haul transfers of your AES-3 data with the ability to swap joined digital audio pairs independently of
your hardwired configuration
Features
• HOT SWAPPABLE - The AES-3 card is hot swappable to allow live insertion into any IO slot in the ADAM
frame. There is no do wntime or restart needed.
• COMPATIBILITY - The hardw are and firmware are compatible with ADAM matrix systems.
• COMPATIBLE INTERFACE - The TDM and Control Bus interfaces are compatible with ADAM matrix TDM and
control buses.
• AZEDIT CONFIGURABILITY - The AES-3 card supports downloadable firmware features through AZedit.
7
AES-3 Digital Audio Interface Card
Specifications
Performance Specifications
Dynamic Range: 128 dB
Input Sample Rate
(serial input port - Fsi): 16 to 108 kHz
Output Sample Rate (Fso): 44.1 kHz
Output Data: 16 bits capable of
24 bits
Output to Input
Sample Ratio Rate: .33 to 3
T otal Harmonic
Distortion + Noise: 120dB
Peak idle channel
noise component: -140 dBFS
Resolution: 16-24 bits
Digital Filter Characteristics
Passband:
Upsampling: .4535Fsi Hz
Downsampling: .4595Fso Hz
Passband Ripple: ±0.007dB
Stopband (downsampling): .5465Fso Fsi/2 Hz
Stopband Attenuation: 110 dB
Group Delay: 175ms
Group Delay Variation
vs. Frequency: 0.0µs
Interchannel
Phase Deviation: 0.0°
High-Level Input Voltage,
except RXP. RXN: 2.0 - (VD+)+0.3V
Low-Level Input Voltage,
except RXP, RXN: -0.3 - 0.8V
Low-Level Output Voltage
(lo=-20uA), except TXP
and TXN: 0.4V
High-Level Output Voltage
(lo=-20uA), except
TXP and TXN: (VD+) -1V
Input Leakage Current: ±10 - ±15mA
Differential Input V oltage,
RXP to RXN: 200 mV
Output High Voltage,
TXP and TXN: (VD+) -.07 (VD+) -
0.4V
Output Low Voltage,
TXP, TXN: 0.4 - 0.7 V
Switching Characteristics
RMCK output jitter: 200 ps RMS
AES-3 Transmitter Output Jitter: 1 ns
DRACDRAC
DRACDRACROLOCEDOCYEKROLOCEDOCYEK
DRAC
)5477(3-SEAwolleY
)3677(8-NOVReulB
)0157(8-OIAegnarO
)4157(rellortnoCretsaMneerG
)4377(2-rellortnoCretsaMteloiV
Table 1. Key Code Color Table for the ADAM cards
ROLOCEDOCYEKROLOCEDOCYEK
ROLOCEDOCYEK
8
AES-3 Digital Audio Interface Card
Installation of AES-3 Card into the ADAM System
When inserting the AES-3 card into the ADAM system the following considerations need to be made:
• Gently insert the AES-3 card into the correct slot. If the card is forced or twisted while inserting, a pin
on one of the cards could break making the card inoperable.
• When inserting the AES-3 card into the ADAM system, make sure to insert it into a compatible Back
Card. If the card is inserted into a incompatible back card, undesir a b le results can occur.
On the AES-3 card, Telex has provided a color key code to ensure a compatible connection betw een
cards. The AES-3 card color is yellow, and will only insert into a yellow coded back card (See figure 1).
Figure 1. AES-3 Color Key Code. This Key Code only allows the AES-3 to plug into an AES-3 compatible back card.
Note: Only newer systems have the color coded back cards.
FAIL LED
The Fail LED will light up when an y one of the f ollowing conditions is met:
• During reset, until the card completes its power ON sequence.
• If an ASIC read/write failure occurs.
• If the TDM clock disappears (until it reappears).
• If an error occurs during reprogramming of the flash due to a
firmware download (until the card resets).
• If an AES-3 chip could not be initialized at startup.
• If an AES-3 chip was re-initialized because of continued PLL or SRC
unlock (A continuous flash is seen)
• While the card is in diagnostic maintenance mode (DIP switch 8 is in
the ON position).
9
Figure 2. AES-3
Faceplate
AES-3 Digital Audio Interface Card
Switches and Connections
Important: Y ou must remo v e the card from the frame in
order to change any configuration switch settings.
DIP Switches
DIP Switch 1
Off: (Default) 16 bit audio is enabled. The card can
accept incoming audio up to 24 bit format. The
card transmits outgoing audio at 16 bit format.
On: 24 bit audio is enabled. The card can accept
incoming audio up to 24 bit format. The card
transmits outgoing audio at 24 bit format.
Description: Accepts and transmits audio at different
resolutions: 16 bit and 24 bit. Higher resolution results in
higher quality of sound.
DIP Switch 2................................... unused
DIP Switch 3................................... unused
DIP Switch 4
Off: (Default) The AES-3 card monitors the
validity bit in the incoming stream and mutes
the incoming AES stream if the validity bit is
set.
On: The AES-3 card ignores the validity bit in the
incoming stream.
Description: Switch 4 control whether or not the
validity bit in the incoming AES stream is monitored and
acted upon.
DIP Switch 5:
Off: (Default) Monitors three types of minor
receiver errors and mutes the incoming audio
stream if at least five errors occur in any
200ms time window.
DIP Switch 6:
Off: The AES-3 card monitors the non-audio
indicator bit in the incoming AES stream and
mutes the audio if the bit is set.
On : The AES-3 card ignores the non-audio
indicator bit in the incoming AES stream.
Description: The non-audio indicator bit is contained in the
incoming AES stream and indicates whether or not the AES
data can be interpreted as audio. If the switch is set to ON, the
non-audio indicator bit is ignored.
DIP Switch 7:
Off: The AES-3 card mutes the incoming audio on loss of
PLL and/or SRC lock, and will reset the AES chip
associated with that channel pair if either lock
remains unachieved for at least two seconds.
On: The AES-3 card will not reset the AES chip with
continued loss of PLL and SRC lock, and will not
mute the incoming audio when the SRC is unlocked.
It will always mute the incoming audio when the PLL
is unlocked.
Description: In normal operation, the AES-3 card attempts to
achieve PLL and SRC lock on the incoming AES stream. If a
lock cannot be achieved within two seconds, the card resets the
chip associated with the AES channel pair.
Note: It is possible there is no input stream connected to the
card, so no PLL or SRC lock will ever be achieved. In this case,
resetting the AES chip is not recommended because any AES
output stream from that card using that chip is interrupted.
If an AES output is being used and the corresponding AES input
is not being used, the user can prevent the AES-3 card from
resetting the AES chip to achieve PLL/ SRC lock
If an AES-3 chip is being re-initialized because of continued PLL
or SRC unlock, the Fail LED will flash ON for roughly a half
second every 2-3 seconds.
DIP Switch 8:
Note: The AES-3 card will unmute the incoming
audio if none of these errors have occurred for at
least 80ms.
On: Ignores minor receiver errors. If there are
adverse line conditions such that there are
repeated minor errors, the user may want
to ignore these errors and allow the audio to
pass unmuted.
Description: There are three types of receiver errors
that can occur due to line conditions or clock problems:
Confidence errors
: the clock is suspect.
BI-Phase
Encoding errors:
Parity Errors
: an incorrect number of
the bi-phase encoding
rules have been broken.
transitions per frame
was detected.
WARNING
position. It is reserved for debugging and can have unintended
consequences.
Figure 3. AES-3 DIP Switch panel - Switch 1
10
: DIP s witch 8 should alw ays be left in the OFF
AES-3 Digital Audio Interface Card
Download AES-3 firmware through AZedit
1. Open AZedit.
2. From the Status menu, select Software V ersions, then I/O Cards.
The I/O Card Version Information screen appears showing the occupied slots in the system.
3. Highlight the Version to be updated.
You may select more than one version at a time by holding CTRL key down while you select
4. Press CTRL + Shift + D.
The Firmware Download Windo w appears.
11
AES-3 Digital Audio Interface Card
5. Using the browse feature, browse to the file to be downloaded.
6. Click Open.
The Download Device Firmware window appears.
7. Click Begin Download.
The download begins.
Once the file is transferred to the intercom, a message indicating Done appears in the Download Status
window . At this point, the Master Controller must forward the new firmware to the selected card(s).
8. Click OK.
The AES-3 firmware download will be completed by the Master Controller , at which time the AES-3
card(s) will reprogram themselves and reboot. This takes a minute or two to occur.
9. Verify the version upgrade in the I/O Card Version Information Window is correct.
WARNING! Do NOT po w er do wn the fr ame or pull the AES-3 card(s) from the fr ame until you have
verified the new version information from AZedit. If the card loses power while
reprogramming the on-board flash memory , the card ma y become unbootab le, and ma y
need to have its flash chips replaced.
12
AES-3 Backcard
AES-3 Digital Audio Interface Card
13
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AES-3 Digital Audio Interface Card
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AES-3 Digital Audio Interface Card
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