Comrex ACCESS STEREO BRIC IP User manual

...........IntroductIon......................................................................................... 7
.......................About brIc.............................................................................. 8
.......................More About AcceSS rAck......................................................... 9
.......................WhAt coMeS WIth AcceSS rAck ................................................ 9
...........rAck dIAgrAMS And InStAllAtIon .............................................................. 10
.......................reAr PAnel dIAgrAM And deScrIPtIonS.......................................... 10
.......................Front PAnel dIAgrAM And deScrIPtIonS........................................ 11
.......................Mono vS. Stereo........................................................................ 11
.......................PInoutS - AudIo ......................................................................... 11
.......................PInoutS - contAct cloSure ......................................................... 12
.......................PInoutS - SerIAl Port ................................................................. 12
...........SettIng uPAcceSS............................................................................... 13
.......................hookIng uP.............................................................................. 13
.......................About netWork connectIonS ...................................................... 13
.......................SettIng uPAcceSS netWork connectIonS .................................. 13
.......................dynAMIc vS. StAtIc AddreSSIng ..................................................... 15
...........gAInIng AcceSS to AcceSS vIA the conSole connectIon InterFAce.............. 17
.......................toP And bottoM nAvIgAtIon bArS ................................................ 17
.......................netWork tAb............................................................................. 19
...................................ethernet Port Set-uP .................................................... 19
...................................PotS ModeM Set-uP...................................................... 20
.......................Web broWSer ............................................................................ 21
.......................reMoteS tAb.............................................................................. 21
.......................StAtS tAb .................................................................................. 24
.......................AudIo level tAb ........................................................................ 26
.......................conFIgure tAb........................................................................... 26
...........conFIgurIng AcceSS vIA the conSole connectIon InterFAce...................... 27
.......................MAnAge ProFIleS........................................................................ 27
.......................ProFIle SettIngS ........................................................................ 30
.......................SySteM SettIngS ......................................................................... 31
.......................uSer InterFAce........................................................................... 32
.......................cAlIbrAte touchScreen ............................................................... 33
.......................reSet conFIgurAtIon .................................................................. 33
ACCESS StErEo BrIC IP CodEC
tABlE of ContEntS
SectIon 1
SectIon 2
SectIon 3
SectIon 4
SectIon 5
ACCESS Rack 2.8 - FEB 2014
Warning: Advanced Topic
You’ll be seeing me from time to time throughout this manual to
point out ACCESS advanced topics. Feel free to ignore these sections
as the default settings provide good performance for most users.

coMrex corPorAtIon
...........gAInIng AcceSS to AcceSS vIA the Web-bASed InterFAce ............................ 34
.......................AcceSS Web-bASed InterFAce ..................................................... 34
.......................connectIonS tAb........................................................................ 36
.......................StAtIStIcS tAb ............................................................................ 37
.......................AudIo MeterIng tAb................................................................... 38
.......................ProFIleS tAb.............................................................................. 39
...................................buIldIng AProFIle......................................................... 40
...............................................locAl & reMote SettIngS ................................... 41
...............................................brute relIAbIlIty oPtIonS ................................ 41
...............................................PotS SettIngS .................................................. 42
...............................................SettIng uP AcceSS For uSe on PotS Stereo ....... 42
.......................AdvAnced ProFIle oPtIonS .......................................................... 44
...................................AdvAnced chAnnel ......................................................... 44
...................................AdvAnced chAnnel oPtIonS............................................. 45
...................................AdvAnced encoder oPtIonS ............................................ 45
...................................AdvAnced decoder oPtIonS ............................................ 46
.......................SySteM SettIngS tAb ................................................................... 48
...................................contAct cloSureS .......................................................... 50
...................................Aux SerIAl SettIngS........................................................ 50
...................................SecurIty SettIngS ........................................................... 50
...................................brIc norMAl SettIngS ................................................... 51
...................................ModeM SettIngS ............................................................ 51
...................................n/AcIP SIP SettIngS ..................................................... 51
.......................AdvAnced SySteM SettIngS ........................................................... 52
...................................brIc norMAl SettIngS ................................................... 52
...................................ModeM SettIngS ............................................................ 52
...................................StAndArd rtP SettIngS .................................................. 52
...................................n/AcIP SIP SettIngS ..................................................... 52
...................................tcP SettIngS ................................................................ 53
...........MAkIng connectIonS uSIng the Web-bASed InterFAce ................................. 54
.......................creAtIng AreMote connectIon ................................................... 54
.......................dISconnectIng ........................................................................... 56
.......................AdvAnced connectIon oPtIonS .................................................... 56
...................................PASSWord FIlterIng ........................................................ 56
...................................connectIng to ASPecIFIc Port ........................................ 57
...................................bAckIng uP AconnectIon................................................ 59
...................................FAll ForWArd FunctIon .................................................. 60
...................................bAckuP/FAll ForWArd lIMItAtIonS .................................... 60
...........oPerAtIng AcceSS In A24/7 envIronMent............................................... 61
.......................SettIng AcceSS For 24/7 oPerAtIon .......................................... 62
...........PotS (PlAIn old telePhone ServIce) codec connectIonS ......................... 63
.......................PotS codec Set-uP For AcceSS coMPAtIbIlIty ............................ 63
.......................uSIng AcceSS WIth PotS ......................................................... 63
SectIon 6
SectIon 7
SectIon 8
SectIon 9
Warning: Advanced Topic
Warning: Advanced Topic
Warning: Advanced Topic

ACCESS Product Manual
.......................SettIng uP AcceSS For uSe on PotS Stereo................................ 64
.......................rAte droP vS. retrAIn ................................................................ 65
.......................troubleShootIng PotS connectIon ............................................ 66
...........SWItchboArd trAverSAl Server (tS) ......................................................... 67
.......................conFIgurIng SWItchboArd trAverSAl Server .................................. 72
.......................loggIng InAnd SettIng uPthe SWItchboArd trAverSAl Server........ 73
.......................uSIng SWItchboArd tS................................................................ 74
.......................creAtIng uSerS .......................................................................... 76
.......................contAct lIStS ............................................................................ 76
.......................ShAreS ...................................................................................... 77
...........About the AlgorIthMS............................................................................ 79
.......................brIc-hQ1 (hIgh QuAlIty 1)..................................................... 79
.......................brIc-hQ2 (hIgh QuAlIty 2)..................................................... 79
.......................brIc-ulb (ultrA loW bItrAte).................................................. 80
.......................lIneAr PcM .............................................................................. 80
.......................FlAc ....................................................................................... 80
.......................g.711...................................................................................... 80
.......................g.722...................................................................................... 81
.......................AAc......................................................................................... 81
.......................he-AAc .................................................................................. 81
.......................he-AAcv2 .............................................................................. 81
.......................AAc-ld .................................................................................. 81
.......................AAc-eld ................................................................................ 81
...........MultI-StreAMIng .................................................................................... 82
...........IP MultIcASt ......................................................................................... 84
.......................MultIcASt ProFIleS ..................................................................... 84
.......................SettIng uP AMultIcASt reMote .................................................... 85
.......................tIMe-to-lIve .............................................................................. 85
.......................chAngIng Port nuMberS For MultIcASt ........................................ 85
...........StreAMIng Server FunctIon ..................................................................... 86
.......................decodIng AhttP StreAM .......................................................... 86
.......................SIMultAneouSly connectIng AcceSS And StreAMIng ...................... 86
...........gAteWAy oPerAtIon ................................................................................ 87
.......................About gAteWAy oPerAtIon .......................................................... 87
.......................connectIng AS AgAteWAy ............................................................ 87
.......................gAteWAy Mode .......................................................................... 88
...........MAkIng n/AcIP SIP coMPAtIble connectIonS ........................................... 89
.......................More About ebu3326............................................................... 89
.......................ebu3326 In AcceSS................................................................ 89
SectIon 10
SectIon 11
SectIon 12
SectIon 13
SectIon 14
SectIon 15
SectIon 16

coMrex corPorAtIon
.......................n/AcIP SIP ModeS.................................................................... 90
.......................unregIStered Mode ................................................................... 90
.......................regIStered Mode ....................................................................... 90
.......................SIP ServerS ............................................................................... 90
.......................SIP urIS.................................................................................. 90
.......................regISterIng WIth AServer ........................................................... 91
.......................MAkIng SIP regIStered cAllS ...................................................... 92
.......................AdvAnced n/AcIP toPIcS ........................................................... 93
...................................SIP troubleShootIng ..................................................... 94
...................................outgoIng cAll ISSueS ..................................................... 94
...................................IncoMIng cAll ISSueS ...................................................... 94
...................................SolutIonS...................................................................... 95
...................................StunnIng SucceSS ......................................................... 95
...................................FIx oF lASt reSort ......................................................... 95
.......................AdvAnced toPIcS........................................................................ 96
...................................QueStIonS & AnSWerS ..................................................... 96
...................................ebu3326, SIP, Stun And IP coMPAtIbIlIty ..................... 101
...........lIcenSe And WArrAnty dIScloSureS For coMrex AcceSS ............................ 105
...........AcceSS/brIc-lInk trAverSAl Server uSe dISclAIMer .................................. 108
...........conForMIty And regulAtory InForMAtIon ................................................. 109
...........IP coMPAtIbIlIty................................................................................... 113
...........InForMAtIon For It MAnAgerS ................................................................. 115
...........uSIng AcceSS on unIdIrectIonAl netWorkS............................................. 117
...........SPecIFIcAtIonS ........................................................................................
119hQ
...........tAble 1 - xlr PInout............................................................................. 11
...........tAble 2 - AeS3 PInout ........................................................................... 11
...........tAble 3 - contAct cloSure PInoutS.......................................................... 12
...........tAble 4 - SerIAl Port PInoutS ................................................................. 12
...........FIgure 1 - reAr PAnel dIAgrAM And deScrIPtIonS ...................................... 10
...........FIgure 2 - Front PAnel dIAgrAM And deScrIPtIonS .................................... 11
...........FIgure 3 - dIrect connectIon to Internet ................................................ 14
...........FIgure 4 - connectIon to Internet vIA Subnet (or lAn)............................. 14
...........FIgure 5 - toP And bottoM nAvIgAtIon bArS............................................. 18
SectIon 17
SectIon 18
SectIon 19
SectIon 20
APPendIx A
APPendIx b
APPendIx c
APPendIx d
tAble lIStIng
FIgure lIStIng
Warning: Advanced Topic

ACCESS Product Manual
...........FIgure 6 - tcP/IP tAb For ethernet Port conFIgurAtIon .......................... 20
...........FIgure 7 - PotS ModeM conFIgurAtIon tAbS ........................................... 20
...........FIgure 8 - conSole connectIon InterFAce reMoteS tAb .............................. 21
...........FIgure 9 - Add neW reMote Screen ......................................................... 22
...........FIgure 10 - chAnnel StAtS In grAPh ForMAt ............................................. 24
...........FIgure 11 - chAnnel StAtS In nuMerIc ForMAt........................................... 24
...........FIgure 12 - Peer StAtS In grAPh ForMAt .................................................. 25
...........FIgure 13 - Peer StAtS In nuMerIc ForMAt................................................ 25
...........FIgure 14 - AudIo MeterIng ................................................................... 26
...........FIgure 15 - conFIgure tAb Pull doWn Menu ........................................... 27
...........FIgure 16 - AvAIlAble FActory ProFIleS .................................................... 28
...........FIgure 17 - ProFIle SettIngS For AneW ProFIle........................................ 30
...........FIgure 18 - SySteM SettIngS tAb .............................................................. 31
...........FIgure 19 - uSer InterFAce tAb ............................................................... 32
...........FIgure 20 - Web-bASed InterFAce logIn Screen.......................................... 34
...........FIgure 21 - Web-bASed InterFAce Screen................................................... 35
...........FIgure 22 - StAtIStIcS tAb ....................................................................... 37
...........FIgure 23 - AudIo MeterIng tAb ............................................................ 38
...........FIgure 24 - ProFIleS tAb ....................................................................... 39
...........FIgure 25 - creAtIng AneW ProFIle ....................................................... 40
...........FIgure 26a- SySteM SettIngS tAb ............................................................ 48
...........FIgure 26b - SySteM SettIngS tAb ............................................................ 49
...........FIgure 27 - connectIon tAb .................................................................. 54
...........FIgure 28 - Store neW reMote In the connectIonS tAb ............................. 55
...........FIgure 29 - connectIonS PASSWord In the SettIngS tAb.............................. 57
...........FIgure 30 - chAngIng the udP Port For IncoMIng connectIonS................ 58
...........FIgure 31 - bAckuP/FAll ForWArd FunctIonS In the connectIonS tAb .......... 59
...........FIgure 32 - 24/7 oPerAtIon In the connectIonS tAb ................................. 62
...........FIgure 33 - PotS codec vS. PotS Stereo Mode In the ProFIleS tAb ......... 64
...........FIgure 34 - connectIonS tAb durIng An ActIve PotS cAll ........................ 65
...........FIgure 35 - the eFFect oF nAt............................................................... 68
...........FIgure 36 - SWItchboArd tS buddy lISt ................................................... 69
...........FIgure 37 - IncoMIng PAcketS hIttIng nAt router .................................. 70
...........FIgure 38 - “PunchIng Ahole” In AnAt router...................................... 71
...........FIgure 39 - trAverSAl Server SettIngS ...................................................... 72
...........FIgure 40 - enterIng neW unItS.............................................................. 73
...........FIgure 41 - SWItchoArd tS MAIn Account Screen ..................................... 74
...........FIgure 42 - SWItchboArd tS reMote lISt.................................................. 74
...........FIgure 43 - SWItchboArd tS entrIeS on the Web-bASed InterFAce ............... 75
...........FIgure 44 - SWItchboArd uSerS lISt ......................................................... 76
...........FIgure 45 - SWItchboArd contAct lISt ..................................................... 76
...........FIgure 46 - chAngIng ActIve contAct lISt................................................ 77
...........FIgure 47 - ShAre AdevIce ..................................................................... 78
...........FIgure 48 - MultI-StreAMIng ArrAngeMent ............................................... 82
...........FIgure 49 - trAnSMIt on/oFF In the ProFIleS tAb...................................... 83
...........FIgure 50 - MultIcASt SelectIon In the ProFIleS tAb .................................. 85
...........FIgure 51 - gAteWAy connectIon............................................................. 87
...........FIgure 52 - tcP/IP tAb For gAteWAy SetuP.............................................. 88
...........FIgure 53 - n/AcIP SIP SettIngS ............................................................. 91
...........FIgure 54 - SIP StAtuS ........................................................................... 91

coMrex corPorAtIon
About Comrex
Comrex has been building reliable, high quality broadcast equipment
since 1961. Our products are used daily in every part of the world by
networks, stations and program producers.
Every product we manufacture has been carefully designed to function
flawlessly, under the harshest conditions, over many years of use. Each
unit we ship has been individually and thoroughly tested.
Comrex stands behind its products. We promise that if you call us for
technical assistance, you will talk directly with someone who knows about
the equipment and will do everything possible to help you.
You can contact Comrex by phone at 978-784-1776. Our toll free number
in North America is 800-237-1776. Product information along with
engineering notes and user reports are available on our website at www.
comrex.com. Our email address is [email protected].
Warranty and Disclaimer
All equipment manufactured by Comrex Corporation is warranted by
Comrex against defects in material and workmanship for one year from
the date of original purchase, as verified by the return of the Warranty
Registration Card. During the warranty period, we will repair or, at
our option, replace at no charge a product that proves to be defective,
provided you obtain return authorization from Comrex and return
the product, shipping prepaid, to Comrex Corporation, 19 Pine Road,
Devens, MA 01434 USA. For return authorization, contact Comrex at
978-784-1776 or fax [phone].
This Warranty does not apply if the product has been damaged by
accident or misuse or as the result of service or modification performed
by anyone other than Comrex Corporation.
With the exception of the warranties set forth above, Comrex Corporation
makes no other warranties, expressed or implied or statutory, including
but not limited to warranties of merchantability and fitness for a
particular purpose, which are hereby expressly disclaimed. In no event
shall Comrex Corporation have any liability for indirect, consequential
or punitive damages resulting from the use of this product.

ACCESS Product Manual
7
Congratulations on purchasing the Comrex ACCESS codec. This product
is the next step in the evolution of audio transportation over networks.
For Comrex, this began in 1976 with the introduction of the Frequency
Extender, followed by ISDN codecs in the early 1990s and POTS codecs in
1996. So we’ve been doing this for a long time.
The ACCESS product is the result of years of our research into the state of
IP networks and audio coding algorithms. This has all been in the quest to
do what we do best, which is to leverage existing, available services to the
benefit of our core customers - radio remote broadcasters.
The heart of this product is called BRIC (Broadcast Reliable Internet
Codec). While others have introduced hardware coined “IP Codecs,” this
is the first product we’re aware of that dares to use the word Internet
“with a capital I.” Given the challenges the public Internet presents, it’s no
small boast to say that this product will perform over the majority of avail-
able connections.
BRIC represents a change that is both desirable and inevitable for remotes.
It’s inevitable because, as available connections move from old fashioned
“circuit switched” style to newer “packet switched” style, technology like
ISDN and POTS codecs will begin to work less and less often. The desir-
ability stems from the new wireless networks that will make remote broad-
casting more mobile, simpler and less expensive. BRIC technology has
been engineered not only to be robust enough for the Internet, but usable
in really challenging Internet environments like 802.11x Wi-Fi, Wi-Max, 3G
cellular and satellite based Internet connections.
Those of us here who have been remote broadcasters have been wishing
for a system like this for a long time. As former broadcasters turned de-
signers, it’s our hope that this kind of enabling technology will tickle the
imagination of the user, enabling more creative and entertaining program-
ming to be broadcast from more diverse and interesting locations. Please
let us know about your unique ideas and adventures by dropping us a
note at [email protected].
SECtIon 1 IntroduCtIon

Comrex Corporation
8
BRIC (Broadcast Reliable Internet Codec) is a breakthrough technology
with hardware that will deliver audio over the public Internet in much the
same way that ISDN and POTS codecs have performed in the past. BRIC
consists of three pieces:
 •RackmountACCESScodec(whichyouareusing)
 •PortableACCESScodec
 •SwitchboardTraversalServer
We will describe each piece independently:
1) Rackmount ACCESS codec — This product is designed for installa-
tion in a radio station’s “remote rack” and is designed for “always on”
operation. Hence the lack of a power switch. Also, it is envisioned that
this product will be controlled entirely from a computer connected to
the local LAN. There are no user controls on the ACCESS Rack (other
than a recessed reset button) and the only indications are audio meters
and a Ready light to indicate an incoming data stream. After initial con-
figuration, all connection, status and diagnostics are available via the
internal web server and Console Connection Interface.
2) Portable ACCESS codec — This product is engineered to provide the
most convenience for the remote broadcaster on the road. It combines
small size, battery power, clip-on mixer and headphone drivers with an
audio codec capable of remarkable quality on the public Internet.
3) Switchboard Traversal Server — This server exists on the public
Internet at a fixed address and performs several functions. Its use is op-
tional but makes connections between ACCESS codecs much simpler
and removes worries about dynamic IP’s, NATs, and other concerns that
can make peer-to-peer connection over the Internet difficult (especially
over tightly controlled networks like 3G or Wi-Fi). The Switchboard TS
provides the following functions:
a) Communicates with all ACCESS codecs that are provisioned
to work with it. It keeps a log of the IP address of every codec
that wishes to be subscribed.
b) Maintains a “keep alive” channel to each codec subscribed,
allowing Traversal of firewall and Network Address Translators
when receiving an incoming call.
c) Provides each subscribed ACCESS codec with a “Buddy List”
of other users, their current status, and will facilitate connec-
tion to them if desired.
About brIc

ACCESS Product Manual
9
More About AcceSS
rAck
WhAt coMeS WIth
AcceSS rAck
ACCESS Rack incorporates all the features, algorithms and services of
BRIC as defined in the previous sections. Its main function is to provide a
robust, high quality, low-delay audio link in full-duplex over challenging
IP networks like the public Internet. To this end, it provides an intuitive
and attractive Web-based Interface via web-browser and a direct connect
Console Connection Interface. Using these interfaces, you can select op-
erating modes, check audio levels, make and end connections, and check
network statistics of any connections you make. While ACCESS is designed
to handle most network challenges in its default configuration, advanced
options are available to allow customization of parameters that have effect
on link stability and delay.
But wait! There’s more! ACCESS is also a POTS codec. It has a built-in
modem which can be set to make calls over analog phone lines directly to
other units. In this mode, ACCESS can communicate with other ACCESS
devices, or with a range of previous generation POTS codec devices made
by Comrex.
The following items are shipped with a new ACCESS Rack:
(1) ACCESS Stereo BRIC IP Codec (Rackmount)
(1) 6’ Ethernet cable
(1) 6’ Telephone cable
(1) AC Power cord
(1) Operating manual
(1) Warranty card (Please fill out and return)

Comrex Corporation
10
SECtIon 2 rACk dIAgrAmS And InStAllAtIon
Figure 1 - Rear Panel Diagram and Descriptions
This is an IEC connector for the main power. ACCESS works on worldwide
AC power at 110-240VAC 50-60Hz, auto detecting.
This switch determines whether the Line In Left/AES3 In XLR connector is
used for analog or AES3 digital audio input.
Apply balanced analog audio to be sent over the network here. Left chan-
nel is used for mono encoding modes. Level is set to 0dBu (0.775VRMS)
nominal. Full scale input is +20dBu.
Balanced analog audio is available at these ports. Level is set to 0dBu
(0.775VRMS). Full scale output is +20dBu.
A 48KHz AES3 stereo signal is available here. AES3 output is available si-
multaneously with analog. When the AES3 Input is active, the AES3 Output
will lock to the sampling rate and clock signal of the Input.
Asynchronous ancillary data is available here.
Attach a VGA computer monitor here for accessing the Console Connec-
tion Interface.
This button will restart the Rack's computer board.
Attach an analog telephone line here for POTS codec compatibility.
Four sets of contact closure inputs and outputs are available on this port.
These can be used to send signals to the far end of the link or to trigger
remote control gear such as automation equipment.
Attach a PS/2 compatible mouse or keyboard here for use with the console
connection interface.
10/100BaseT Ethernet port for connection to your network.
Available for use with USB keyboards and mice. May also be used with
some 3G USB wireless modems.
1) Ac InPut
2) Analog/AES3 Input
Switch
3) And 4) AnAlog AudIo
InPut
5) And 6) AnAlog AudIo
outPut
7) AeS3 dIgItAl AudIo
outPut
8) SerIAl Port
9) MonItor outPut
10) reSet
11) PotS/PStn
12) contAct cloSureS
13) PS/2 MouSe /
keyboArd Port
14) ethernet Port
15) uSb PortS
1
3 & 4 5 & 6 7 8
11 12 14 15
LINE IN
LEFT/ AES3 IN
LINE IN
RIGHT
LINE OUT
LEFT
LINE OUT
RIGHT
AES3
OUTPUT VGA
SERIAL
USB
MODEM
CONTACT
CLOSURES
RESET
ANALOG
AES3
LAN
2 910
13