Telos NX12 User Manual Page 1

TELOS Nx12Advanced Digital Broadcast Telephone SystemUSER’S MANUALManual Version 1.6 for software version 1.0 and later 30 July, 2008

TELOS NX12 MANUAL | IXA3 USA ISDN Ordering Guide 115Dealing with the Phone Company. . . . . . . . . . . . . . . .

90 | Section 6

| 917 SpecicationsGeneralInterface for connecting six ISDN BRI (S) or twelve analog telephone lines to professional studio equipment. Includes

92 | Section 7AudioAnalog Inputs2x send analog inputs ♦2x Program-on-Hold analog inputs ♦XLR female, pin 2 high. Active balanced, with RF protection

SPECIFICATIONS | 9312 telephone lines, 4 hybrids, 4 studio inputs, 4 studio outputs, 2 Program-on-Hold ♦inputsISDN Telephone Line ConnectivityPro

94 | Section 7With analog audio in/out, there are only two total inputs and outputs. So the Nx12 must ♦be used in a mode that combines the two hybr

SPECIFICATIONS | 95

96 |

| 978 Warranty and Application CautionTELOS Nx12 LIMITED WARRANTYis Warranty covers “the Products,” which are defined as the various audio equipm

98 |

USA SPIDS BY TELCO | 99Alltel (Ohio)XXXYYYZZZZ0101AmeritechXXXYYYZZZZ0111orXXXYYYZZZZ011or01YYYZZZZ011orXXXYYYZZZZ01Bell Atlantic01YYYZZZZ00or01YY

| 11 IntroductionWelcome to the Nx12e Telos Nx12 combines a 12-line selector and 4 hybrids with advanced signal processing to deliver all you ne

100 | Appendix 1Century TelephoneXXXYYYZZZZ00Cincinnati Bell01YYYZZZZ000orSPID1 00YYYZZZZ01SPID2 00YYYZZZZ02or00YYYZZZZ01Fort Mills TelephoneXXXYYYZZ

USA SPIDS BY TELCO | 101SPID2 XXXYYYZZZZ100Standard Telephone (GA)SPID1 XXXYYYABCDCD SPID2 XXXYYYEFGHGH (last two digits of phone number repeated)U

102 |

GUIDE TO TELEPHONE TERMINOLOGY | 103You’ll get better results from the Telco if you understand and speak the lingo! We have tried to include the

104 | Appendix 2or incentive to potential tenants. If a BLEC offers Long Distance Service it is covered by the same regulations as any other LEC. Bloc

GUIDE TO TELEPHONE TERMINOLOGY | 105your station runs a contest) the other choke exchange users will be blocked because all trunks into the choke

106 | Appendix 2number of trunks in the system.DID Trunk- A Direct Inward Dialing Trunk. A trunk (channel) which can only receive calls. A group of t

GUIDE TO TELEPHONE TERMINOLOGY | 107Frame – A unit of data which is defined by the specific communi-cations protocol used. See Line Format, T1.FXO –

108 | Appendix 2system was devised by the National ISDN User’s Forum and Bellcore to simplify ordering new ISDN lines in the USA and Canada. Using a

GUIDE TO TELEPHONE TERMINOLOGY | 109Company then any call outside of your LATA or any Interstate call is considered long distance and is handled b

2 | Section 1Conference linking lets you set up high-quality conferencing between callers with no ♦external equipment needed.Caller ID support on b

110 | Appendix 2interfaces to the telephone network. In some circles ‘PBX’ implies a manual switchboard whereas ‘PABX’ (Private Automatic branch exch

GUIDE TO TELEPHONE TERMINOLOGY | 111interface. Also known as the S passive bus.S0- European term for ISDN BRI. See BRI and ISDN2.S2M- European te

112 | Appendix 2DS0’s). e most common framing scheme for T1 “robs” bits for signaling leaving 56kbps per channel available for data use.T-1- An alte

GUIDE TO TELEPHONE TERMINOLOGY | 113perfection!U Interface- e interface between the ISDN “BRI” line and the “NT1”. ANSII standards for the US cal

114 | Appendix 2

| 115A3 USA ISDN Ordering Guideis section applies to users in Canada & USA and is intended to help you when it comes time to order your ISDN

116 | Appendix 3regard for such arcana as 5ESS, DMS100, CSV/CSD, SPIDs, etc. Unfortunately, this is not always the case.At their central offices, the t

USA ISDN ORDERING GUIDE | 117with an audio codec such as the Zephyr or Zephyr Xstream, then CSD should be ordered as it is required for audio code

118 | Appendix 3ISDN BRI LINE ORDERUSA & CanadaTelos Nx12To: Telephone CompanyAttention: ________________________________ FromCompany: _______

USA ISDN ORDERING GUIDE | 119□ No hunt groups You may call the manufacturer of the Nx12, Telos Systems, at +1 (216) 241-7225 for any additional re

INTRODUCTION | 3significantly better distortion and signal-to-noise performance.Lower noise4. . Because they are digital, ISDN lines are not susce

120 | Appendix 3Give us: Two SPID numbers, depending upon number of active B channels ♦Two Directory Numbers ♦PROTOCOL: AT&T Point-to-Point (Cust

| 121A4 Euro-ISDN Ordering Guideis section applies to users in Europe and other countries where the Euro-ISDN ETS 300 standard is supported (much

122 | Appendix 3Recall that each ISDN BRI has two possible B channels. It is possible to order a line with one or both of the B channels enabled – an

ISDN BRI LINE ORDERETS-300 Euro-ISDNTelos Nx12To: Telephone CompanyAttention: ________________________________ FromCompany: _______________________

4 | Section 1Two-Studio Modese Nx12 can be used with two studios independently. Lines may be independent or shared. Each studio has two hybrids. e

| 52 Installation2.1 Getting Startede Nx12 mounts in a 2RU high space in a standard 19” rack. You do not need to pay special attention to cooli

6 | Section 22.3 Connecting the Nx12 to Analog Linese Nx12 uses plug-in interface modules to attach to POTS (regular, analog loop start, telephone

INSTALLATION | 7In the USA & Canada a direct connection to the “bare copper” 2-wire U interface is required. erefore, the USA & Canada in

8 | Section 2Ordering HelpAppendix 3 to this manual describes the ISDN ordering process for USA/Canada in detail, and Appendix 4 does the same for E

INSTALLATION | 9Hot TipNormally your telephone company should supply an RJ-11 style jack for the U interface. This is the same 4 or 6-pin plug use

Telos Nx12 Manual© 2007 TLS Corporation. Published by Telos Systems/TLS Corporation. All rights reserved. TrademarksTelos Systems, the Telos logo, Zep

10 | Section 22.6 Integration with a PBX e Nx12 will usually be used independently of any other phone system in your facility. But it is possible

INSTALLATION | 11e other thing to investigate is whether the PBX offers ‘Loop Current Wink’ or ‘CPC’ (Call-ing Party Control) on the analog ports.

12 | Section 2‘Making do’ with an older consoleConsoles made before around 1990 rarely had good support for mix-minuses, and almost never for more t

INSTALLATION | 13e Nx12 has multiple hybrids and works best if two faders can be assigned to the telephone system with two associated mix-minuses

14 | Section 2if they could, the profanity delay would be a problem, since the talent needs to hear the callers pre-delay.All perceptual codecs (suc

INSTALLATION | 15Bridging impedance (10k ohms) ♦Analog Input XLRPIN DESCRIPTION1 Ground2 Audio +3 Audio -e inputs are designed to be sourced from

16 | Section 2AES Input XLRPIN DESCRIPTION1 Ground2 Signal +3 Signal -So that all four hybrids are accessible in spite of the limited rear panel spa

INSTALLATION | 17110 Ohms ♦e output is synced and sample-rate converted to either the frequency of the AES Input ♦1 signal or an internal 48kHz

18 | Section 2Desktop Director is is the most common control surface. It serves as both a phone and call controller, depend-ing on whether it is se

INSTALLATION | 19Nx12 Desktop Director Ports (RJ-45)PIN DESCRIPTION1 N/C2 N/C3 Transmit to Nx12 +4 Receive from Nx12 +5 Receive from Nx12 -6 Trans

Telos Systems USA2101 Superior AvenueCleveland, OH 44114USATelos EuropeJohannisstraße 685354 FreisingGermany Notices and CautionsCAUTION:THE INSTALLA

20 | Section 2To connect two Desktop Directors to one port, a power supply and RJ-45 modular splitter is required. One of the Directors must have it

INSTALLATION | 21TipPower-over-Ethernet and our ISDN-based Director use dierent connections for power. It is wise to carefully label wiring used

22 | Section 2e Nx12 fully supports Livewire. For more information on using the Nx12 with a Livewire Audio-over-IP network, see Section 5.8.IMPORTA

INSTALLATION | 23PIN DESCRIPTION5 Record Start 16 Ring Mute In 17 N/C8 +5VDC (50mA max)9 Record Stop 110 User Out (Dump) 211 Ringing Out 212 Prior

24 | Section 2ing it from the output to the +5v source on pin 8. An appropriate value is 2.2kΩ. Sink (pull-down) current must be limited to 400mA ma

| 253 Basic Conguration3.1 Step-by-StepHere is a step-by-step guide to basic Nx12 configuration for a new installation:Enter TCP/IP addresses, if

26 | Section 3ISDN S-interface. ere will be 3 RJ-45 jacks. ♦With ISDN, there are two voice channels for each physical connection, so only half as m

BASIC CONFIGURATION | 27Click on the Telco menu. With ISDN modules installed in both Telco interface positions, 2. you will see a page similar to

28 | Section 3More TipsIncorrectly entered SPIDs are the most common problem users in the USA & Canada have placing ISDN calls. Compare the SPID

BASIC CONFIGURATION | 29Drop this test call by pressing the right ♦ Drop button.Having completed that first call, you know your lines 1 and 2 are

30 | Section 3Time to test it out!Ok, you made it! Another hour and you can go home for the day! First we will check that the mix-minus for each hyb

BASIC CONFIGURATION | 31artifacts, and the caller should sound clear.Move the call to Phone 2 by pressing the right column line 1.7. Repeat steps

32 |

USER OPERATION | 334 User Operation4.1 Desktop Directore Telos Desktop Director is both a control surface for putting calls on-air and a telepho

34 | Section 4 Call is On-Air – Column 2Call is On-Air & Locked – Column 1Call is locked and cannot be dropped or placed on hold. To unlock, pre

USER OPERATION | 35 Line is not operationalLine Button ColumnsTalent Mode Each line has 2 buttons, the left column for Caller 1 and the right colu

36 | Section 4Calls placed on screened hold in this manner are being queued up from the first selected to the last one selected by the screener. e n

USER OPERATION | 37Record Control is is intended to control an external recording device. It operates only if connected.Pressing the button once

38 | Section 4Adjust VolumeRinger 5Speaker 5Handset 5back [-] [+]Press ∆ or ∇ to choose which level you want to adjust. Pressing [-] will dec

USER OPERATION | 39Main MenuChange Director ModeSelect RingerCongure Shows∇ Adjust LCD Panelbacke words Change Director Mode should be highlight

We support you... . . . . . . . . . . . . . . . . . . . . . . . . . . . . .i1 Introduction

40 | Section 4Hot TipYou can use this feature to re-order the next queue at any time. Simply press the right line buttons for the calls in reverse o

USER OPERATION | 41Nextis button will take the call designated as next on the left line column. If no call is currently designated next, the call

42 | Section 4feedback, lower the cue speaker volume.Making calls using the built-in speakerphone. Press the Speakerphone button, select a line usin

| 435 Detailed Conguration & ReferenceFirst Step...After power-up and initialization, the status screen appears.When you see this screen, an

44 | Section 55.2 Status DisplaysTelco line and Desktop Director status information is available on both the Web interface and the LCD.On the LCD,

DETAILED CONFIGURATION & REFERENCE | 45Accepting Call Nx12 has accepted an incoming call and is waiting for the Telco switch to connect it. Or

46 | Section 55.3 Using the LCD/Buttons and Web for CongurationYou use the various configuration settings to adjust audio levels and processing opt

DETAILED CONFIGURATION & REFERENCE | 47e Nx12’s default IP number is 192.168.0.230. Normally, you would change this to a number appropriate f

48 | Section 5Input Setting Related to Input LevelInput Setting -10dBV 0dBu +4dBu +9dBu PPM -9dBfs PPMAnalog input level - 10 dBV nom 0 dBu nom +4

DETAILED CONFIGURATION & REFERENCE | 49send level. However, doing so can reduce effective hybrid performance and increase leakage. Conversely,

TELOS NX12 MANUAL | VUsing a small mixer . . . . . . . . . . . . . . . . . . . . . . . . . .

50 | Section 5Receive EQ (Caller Dynamic Digital EQ – DDEQ)Telephone audio frequency response varies widely since many factors can affect it (we’ve m

DETAILED CONFIGURATION & REFERENCE | 51Separate requires the mixing console to provide the cross-connection for conferencing, when required.Wi

52 | Section 5Second of two Shows:In 4-Column show mode, you have 4 independent caller outputs to 4 faders on the console, but require only 1 mix mi

DETAILED CONFIGURATION & REFERENCE | 53combined mix of all callers’ audio, and require only one mix-minus feed from the console. All callers h

54 | Section 54-channel ♦In this mode there are up to four caller inputs/outputs.e L and R of each AES signal are used, creating four independent c

DETAILED CONFIGURATION & REFERENCE | 55USA 720 msBelgium, Netherlands, Switzerland 120 msFrance, Luxemburg, Portugal, Germany 270 msRest of Eu

56 | Section 5ere are a number of choices, but the most common are described below.For Europe and many other parts of the worldETS 300. is is the

DETAILED CONFIGURATION & REFERENCE | 57NoteAfter you enter (or change) your SPIDs or DNs, you must reboot the Nx12. Therefore, once you have e

58 | Section 5ISDN TipETS 300 users should disregard all references to SPIDs. Euro ISDN does not have SPIDs (you lucky souls)!IMPORTANTIf your line

DETAILED CONFIGURATION & REFERENCE | 59Hot TipSome versions of the Telos Zephyr and Zephyr Express do not require that Directory Num-bers be e

vi | Changing Between Producer and Talent Modes . . . . . . . . . . . . . . . 38Using the Director in Producer Mode . .

60 | Section 5to get this from your network administrator or Internet service provider.To enter IP addresses using the LCD/button interface:Select t

DETAILED CONFIGURATION & REFERENCE | 61Hold on Selecte Direct Hold feature allows the operator to seize the next call which has been ringing

62 | Section 5Reboot System?is menu has two options: No ♦ – Goes back to the Reboot System sub-menu.Yes ♦ – Causes the system to reboot. (All cal

DETAILED CONFIGURATION & REFERENCE | 63Sharing the Nx12 – Two-studio Modesese modes allow a single Nx12 to be used with two studios. Telephon

64 | Section 5SHOW 2 ♦ – Line is available for the show that uses hybrid 2 onlySHOW 1&2 ♦ – Line is available for both shows (shared line)Pres

DETAILED CONFIGURATION & REFERENCE | 65Press the MENU softkey1. Scroll down until 2. Select Show is highlighted and then press <SELECT>

66 | Section 5Consult Introduction to Livewire, available on the axiaaudio.com website for a description of Livewire and an explanation of the vario

DETAILED CONFIGURATION & REFERENCE | 67When Livewire is enabled, the corresponding Nx12 Analog or AES3 inputs are switched-off. However, should

68 | Section 55.9 Firmware UpdateNx12 firmware may be updated via the Web interface. Open your browser, connect to the Nx12, and click on the System

DETAILED CONFIGURATION & REFERENCE | 69If you desire to write your own application to access the Nx12 via this protocol, please visit our webs

TELOS NX12 MANUAL | VIIISDN Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . .

70 | Section 5Type ‘help <command>’ to get specic help about a command.Type ‘help *’ to get a short list of commands.Type ‘help **’ to get a

DETAILED CONFIGURATION & REFERENCE | 715.11 System Signal Flow and Audio Processing Send Audio Processinge Nx12’s send-to-caller audio proce

72 | Section 5Automatic Gain Control/Platform leveler ♦Noise gate ♦Dynamic equalization ♦Sample rate conversion ♦High-pass ‘hum’ Filteris filter rem

DETAILED CONFIGURATION & REFERENCE | 73larly useful when the caller is carrying on and the talent wants to interrupt to move the show along.Re

74 | Section 5in this response characteristic, flattening out those peaks with an equalizer can signifi-cantly improve the feedback margin. A spectrum

| 756 Technical Data & Troubleshooting6.1 OverviewA consequence of modern surface-mount construction is that it is frequently no longer poss

76 | Section 6You can’t fix any system without the right world view; a zeitgeist of suspicion tempered by trust in the laws of physics, curiosity dul

TECHNICAL DATA & TROUBLESHOOTING | 77keep careful track so you know what you have eliminated.Step 6. Fix the problem.A Final ought…Constantl

78 | Section 6Accepting CallNx12 has accepted an incoming call and is waiting for the Telco switch to connect it.ConnectedAll signaling is complete

TECHNICAL DATA & TROUBLESHOOTING | 79In the case of Natl.I-1 or 2, and DMS-100 carefully verify that you have the correct SPID from the Telco,

viii | Status Screen for ISDN troubleshooting . . . . . . . . . . . . . . . . . . 77Condition: Can’t Get ISDN Rea

80 | Section 6Condition: Intermittent ISDN Problemsese are among the most difficult kinds of problems to solve. Rest assured, however, that we have y

TECHNICAL DATA & TROUBLESHOOTING | 81to turn on ISDN logging.6.5 Troubleshooting Desktop Director ProblemsMost problems with the Desktop Dire

82 | Section 66.7 ISDN Cause Phrases/ValuesWhen there is an ISDN problem in the network, a phrase appears in the ISDN protocol log that communicate

TECHNICAL DATA & TROUBLESHOOTING | 83Cause No. 8 – Call is proceeding/PreemptionCall in process, please standby.oris cause indicates a call h

84 | Section 6party is no longer assigned, e new called party number may optionally be included in the diagnostic field. If a network does not suppo

TECHNICAL DATA & TROUBLESHOOTING | 85Cause No. 38 - Net out of order is cause indicates that the network is not functioning correctly and tha

86 | Section 6Cause No. 53 – Service operation violated is cause indicates that the user has violated the service operation.Cause No. 54 – Incomin

TECHNICAL DATA & TROUBLESHOOTING | 87CLASS 1.5 (invalid message; e.g. parameter out of range)Cause No. 81 – Invalid call reference valueis ca

88 | Section 6be processed.Cause No. 97 - Message type non-existent or not implementedis cause indicates that the equipment sending this cause has

TECHNICAL DATA & TROUBLESHOOTING | 89calls, etc.Cause No. 113 – Bearer service unavailable [VN 4 only] is cause indicates that the bearer ser