Telos TWOx12 User Manual
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Telos TWOx12 User Manual

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TELOS TWOx12
Advanced All Digital Dual Hybrid Multiline Broadcast Telephone System
USER'S MANUAL
Manual Version 2.0 for software version 3.0 and later
16 July, 2003

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  • Page 1 TELOS TWOx12 Advanced All Digital Dual Hybrid Multiline Broadcast Telephone System USER’S MANUAL Manual Version 2.0 for software version 3.0 and later 16 July, 2003...

  • Page 2: Customer Service

    The URL is: http://www.telos-systems.com. Feedback We welcome feedback on any aspect of the Telos TWOx12 or this manual. In the past, many good ideas from users have made their way into software revisions or new products. Please contact us with your comments.
  • Page 3 DN corresponding to SPID2 must be entered as DN2. If you experience problems only with incoming calls check your DNs. Analog phone line setup (If you ordered an ISDN TWOx12 see section 3.3) You can identify that your TWOx12 is equipped with POTS (analog) telephone lines by examining the rear panel.

  • Page 4: Is The Isdn Working

    TELOS TWOX12 USER’S MANUAL Telco Settings Audio Settings Telco Natl.I-1 Slot A POTS Slot B POTS Slot C POTS If you have a mixed system, you will see some slots labeled in this menu as “ISDN” rather than “POTS”. You’ll need to follow the steps in Section 3.3 to configure those slots.
  • Page 5 TELOS TWOX12 USER’S MANUAL • Enter the phone number for line 2 using the numeric keypad. • You should now hear a ringing sound and see the ringing Status Symbol (an expanding square) on Line 2. Push the right Line 2 button to answer this call. The →...

  • Page 6: Time To Test It Out

    1. Bring up the fader for hybrid 1 on your console. • Adjust the TWOx12’s Output Gain adjustment found in the Audio Settings screen. This sets the level for both outputs. Once you have set hybrid 1 pull that fader down and bring up the fader for hybrid 2.
  • Page 7 TELOS TWOX12 USER’S MANUAL • Look at the left meter on the TWOx12 and verify that this audio is not present on the “1” LED bargraph. If this audio is present here you are not feeding hybrid 1 a mix-minus and you must fix this problem before you proceed.
  • Page 8 See Section 7.5 • Send EQ, AGC See Section 7.5 • Internal Audio Routing See Section 7.3.1 • Using SPLIT Mode to use the TWOx12 in two studios See Section 7.4 CHAPTER 3 GETTING UP & GOING – SYSTEM CONFIGURATION...
  • Page 9 TELOS TWOX12 USER’S MANUAL This page is intentionally left devoid of useful information, except, of course, this message! CHAPTER 3 GETTING UP & GOING – SYSTEM CONFIGURATION...

  • Page 10: Desktop Director™- General Operation

    Desktop Director™- General operation General Description The Telos Desktop Director™ acts as a studio telephone while at the same time acts as a control surface for putting lines on either of the Telos TWOx12’s built-in hybrids. The Desktop Director™ has two modes of operation – Producer (Screener) mode and Talent mode.
  • Page 11 TELOS TWOX12 USER’S MANUAL Call is On-Air – Caller 1 Fader Call is On-Air – Caller 2 Fader Call is On-Air & Locked – Caller 1 Fader. Call is in locked mode and cannot be dropped or placed on hold. To unlock, push button to the left of this ICON.

  • Page 12: Line Control Buttons

    1) and right column called Caller 2. Pressing a line button places the caller on that line on-air on the corresponding hybrid. NOTE: When the TWOx12 is split between two studios (see section 7.4), only the left column will be active and will control the designated hybrid.
  • Page 13 TELOS TWOX12 USER’S MANUAL row of buttons will continue to control the caller 2 hybrid as usual. To place a caller currently on the handset on the air, press either the left (caller 1 hybrid) or right (caller 2 hybrid).

  • Page 14: Telephone Mode Buttons

    TELOS TWOX12 USER’S MANUAL Block All (Block All) - Pressing this key will clear all lines with the only exceptions being lines on-air, on the handset, on hold and direct dial-in “priority” lines such as the studio hotline. This allows you to prevent early callers from getting in on contests until after the DJ has made the announcement and turned off Block All.

  • Page 15: User Function Buttons

    DUAL SHOW MODE When the TWOx12 is used in any of the dual studio modes, the Record logic will only operate from Desktop Directors accessing Show 1 (Hyb 1). The RECORD button is disabled for any DD connected to SHOW2 (Hyb 2).

  • Page 16: Menu Navigation

    The LCD screen and menu navigation buttons are used to set volume settings, LCD screen backlight and contrast, and to select menus allowing to access some of the TWOx12 configuration parameters. The function of the three “soft keys”, immediately below the LCD screen will vary depending on context, and will always be displayed on the screen.

  • Page 17: Volume Menus

    TELOS TWOX12 USER’S MANUAL • The words Change Director Mode should be highlighted by a black cursor bar and the black text will change to white. • Now press the SELECT button • You will now see a screen that looks like:...

  • Page 18: Other Menu Options

    This feature gives a status of the connection between the Desktop Director and the TWOx12 unit to which it is connected. Two values are given: • Near End: gives the number of lost or corrupted data packets in the TWOx12 to Desktop Director direction since this Director was powered on. •...
  • Page 19 Telos provides electronic sub-assemblies to a number of console manufacturers, allowing them to sell a console mounted control surface compatible with the TWOx12 and Series 2101. The “Console Directors” works very much like the Desktop Director in TALENT mode. A diagram of the Console Director and its...

  • Page 20: Telos Desktop Director™ - Guide For Call Screeners

    (Copy and distribute this information to your staff) General Description The Telos Desktop Director™ acts as a studio telephone or it acts as a control surface for putting lines on either of the Telos TWOx12’s built-in hybrids. The Desktop Director™ has two modes of operation – Producer (screener) mode and Talent mode.
  • Page 21 TELOS TWOX12 USER’S MANUAL Call is On-Air – Caller 1 Fader Call is On-Air – Caller 2 Fader Call is On-Air & Locked – Caller 1 Fader. Call is in locked mode and cannot be dropped or placed on hold. To unlock, push button to the left of this ICON.
  • Page 22 TELOS TWOX12 USER’S MANUAL Handset Mode. Call is on the handset Speakerphone Mode. Call is on the speakerphone Line is not operational Buttons The functions of most of the buttons are self-evident. Again, we have used easy to understand symbols wherever possible. A brief explanation of the buttons follows: IMPORTANT! Since certain functions work differently in “Talent”...
  • Page 23 TELOS TWOX12 USER’S MANUAL line to be forced to the top of the queue. The line status will change to the blinking checkmark “next” icon indicating this call will be aired next if the TALENT presses his/her next button. In effect this action makes that caller the “longest held” caller.
  • Page 24 ISDN line. 5.3.3 User Function Buttons – These buttons can be used for control of equipment external to the Telos phone system. For instance the button may used to control your obscenity delay dump, etc.
  • Page 25 TELOS TWOX12 USER’S MANUAL (user button) – Check with your chief engineer to determine what this button does. It can be used to control equipment external to the TWOx12 such as the “delay dump” input on an obscenity delay unit.

  • Page 26: Changing From Talent To Producer Mode

    The LCD screen and menu navigation buttons are used to set volume settings, LCD screen backlight and contrast, and to select menus allowing to access some of the TWOx12 configuration parameters. The function of the three “soft keys,” immediately below the LCD screen, will vary depending on context, and will always be displayed on the screen.
  • Page 27 TELOS TWOX12 USER’S MANUAL Change Director Mode Select Ringer Configure Shows ▼ Adjust LCD Panel back • The words Change Director Mode should be highlighted by a black cursor bar and the black text will change to white. • Now press the SELECT button •...
  • Page 28 TELOS TWOX12 USER’S MANUAL • Speaker This adjusts the level of the built in speaker for the Desktop Director’s hands-free option. • Handset This sets the level of the caller on the handset. If you are using a headset attached to the Desktop Director, this will adjust the level in the headset as well.
  • Page 29 TELOS TWOX12 USER’S MANUAL Intentionally left void, this page was. CHAPTER 5 PLEASE COPY THIS SECTION AND GIVE TO YOUR CALL SCREENERS DESKTOP DIRECTOR – GUIDE FOR PRODUCERS & CALL SCREEENER...

  • Page 30: Telos Desktop Director™- Guide For Talent

    You may be familiar with Telos’ earlier phone systems, so we thought we’d start out by comparing the new system with the older systems (if not skip right ahead to Section 6.2).
  • Page 31 TELOS TWOX12 USER’S MANUAL Line is ringing Call is on hold Call is On-Air – Caller 1 Fader Call is On-Air – Caller 2 Fader Call is On-Air & Locked – Caller 1 Fader. Call is in locked mode and cannot be dropped or placed on hold. To unlock, push button to the left of this ICON.

  • Page 32: Desktop Director™ Display Operation- Talent Mode

    TELOS TWOX12 USER’S MANUAL Call is on hold, has been screened, and is Next. Press Next button to put this line On-Air Block All Mode. Press X Button to cancel Handset Mode. Call is on the handset Speakerphone Mode. Call is on the speakerphone Line is not operational DESKTOP DIRECTOR™...

  • Page 33: Lcd Display Screen And Menu Navigation Buttons

    TELOS TWOX12 USER’S MANUAL 6.3.1 LCD display screen and menu navigation buttons The LCD status is used for general status information and for configuring the Desktop Director™. Items can be selected and changed using the 6 buttons immediately below the LCD screen. The buttons in the row immediately below the LCD screen are “soft buttons”.
  • Page 34 It is possible to change the ringer tone on each Desktop director. There are four different choices. Press SELECT to apply your changes. • Configure Shows This feature gives access to the TWOx12-Split functionalities. This is for use by your Chief Engineer. CHAPTER 6 PLEASE COPY THIS SECTION AND GIVE TO YOUR ON-AIR STAFF...

  • Page 35: Desktop Director™ Buttons

    (mixing desk, board, etc). NOTE: In some cases, where a Telos TWOx12 system is shared between two studios, only one column will be active, the left column.
  • Page 36 6.4.2 User Function Buttons – These buttons can be used for control of equipment external to the Telos phone system. For instance the button may control your obscenity delay dump, etc.

  • Page 37: Placing Callers On-Air - Single Caller

    TELOS TWOX12 USER’S MANUAL Pressing the button once when nobody is on air, “arms” the recording feature (LED blinking). Until disarmed, the system will start and stop the recorder to capture calls placed on the air. Once armed, placing a caller on either of the two hybrids starts the recorder automatically (LED solid).

  • Page 38: Dropping Calls Off Air

    TELOS TWOX12 USER’S MANUAL CONFERENCING on a single hybrid (also called BUTTON MASHING) 1. In standard mode, select your first caller on the left (Caller 1) row of the Desktop Director. 2. If you wish to keep a caller on the air and add more callers, put the first caller in LOCKED status by pressing the LINE button a second time to avoid accidentally hanging up on him/her.
  • Page 39 TELOS TWOX12 USER’S MANUAL cue. Your board may have an automatic provision for this as well. In the unlikely event you experience feedback lower the cue speaker volume slightly. Making calls using the built-in speaker phone -Just push the Handsfree button, select a line using the left column and dial. To dial use the dial pad buttons as you would any phone.

  • Page 40: Detailed Configuration & Reference

    Status button to display these. If all is OK, you will see the Ready indication for each ISDN B channel. If you do not see “READY” as the ISDN Status first cycle power to the TWOx12 off and then back on. If you still do not seen READY on the ISDN Status screen review the information in Sections 2.3, 2.4 and 3.1 and check both your ISDN settings and...

  • Page 41: Level Metering

    TELOS TWOX12 USER’S MANUAL Therefore, there are a few buttons and some LEDs on the front panel of the TWOx12 that are not used. The four buttons to the right side of the numeric keypad and the 3 buttons to its left fall in this category. The lowest LED to the left of the numeric keypad is used.
  • Page 42 The right meter displays either the Studio Out levels (Left and Right) from the TWOx12 to your console or the Hybrid Receive levels (Line 1 and Line 2) from the telephone network. Pressing the small button on the meter selects between Studio Out and Hybrid Receive.

  • Page 43: Status Displays

    TELOS TWOX12 USER’S MANUAL The levels displayed are in decibels relative to the full-scale limit of the Telos TWOx12 (dBfs). Thus, 0dBfs represents the maximum level that can be passed through the system, above which clipping will occur. Clipping must be avoided as it will cause reduced hybrid performance.
  • Page 44 TWOx12 will not reset the number of errors. • A few errors (2- 3) when powering up the TWOx12 is normal. Do not panic as long as this number does not grow substantially over a short period! CHAPTER 7 DETAILED CONFIGURATION &...

  • Page 45: Advanced: Setting The Twox12'S Configuration

    Select any available Desktop Director connection: DD connection The Far end menu gives a detailed error status coming from the Desktop Director side. The Near end menu gives a detailed error status coming from the TWOx12 side. HOT TIP! If you suspect a malfunctioning Desktop Director, check its error status first, before calling Telos Customer Support.

  • Page 46: The Audio Menu

    TELOS TWOX12 USER’S MANUAL Menu Navigation & Item Selection After you select a menu group, you can use the 6 & 5 arrow buttons to scroll through the available items. You may select a highlighted item for modification by pressing the Select button. Once an item is selected, you can use the 6 & 5 arrow buttons to can change the value of the setting.
  • Page 47 TELOS TWOX12 USER’S MANUAL meter, you should insert a pad in the feed to the hybrid to prevent clipping. Clipped send audio will cause leakage. 10dB is a typical value. Send Level This setting adjusts the level of the hybrid into the Telco line and is calibrated with 0dB representing the maximum allowable send level into the line (USA).
  • Page 48 Nominal levels of the telephone network vary as much as 30dB from call to call. The Telos TWOx12 uses a dB-linear approach to AGC with a feed-forward topology. This provides a consistent sound regardless of the drive level. The smart compressor approach used normalizes levels while retaining the natural dynamics of the caller’s voice.
  • Page 49 TELOS TWOX12 USER’S MANUAL An important feature of the TWOx12’s AGC is the fact that it is cross coupled to other sections of the hybrid so that it can reliably distinguish between the real caller audio and residual hybrid leakage. This allows for considerable amounts of gain on low level callers while preserving excellent hybrid performance.
  • Page 50 (mixing desk). The most popular settings for this selection are Separate (where the TWOx12’s dual hybrids are completely independent) and Mix Wide (see page 105). Note that the Feed Thru audio path, shown on the following diagrams, is controlled independently of the routing option chosen.
  • Page 51 TELOS TWOX12 USER’S MANUAL • Separate Routing This option provides two fully independent hybrids, with the Left Studio Audio “connected” to Hybrid 1 and the Right Studio Audio to Hybrid 2. In this mode, the two callers cannot hear each other, except through your external mix-minus configuration.
  • Page 52 TELOS TWOX12 USER’S MANUAL • Mix Panned This option causes the to Studio Input channels to be mixed equally and the resulting monaural send mix sent to each caller. The caller audio, however, is not mixed equally to the studio outputs. Studio Out 1 has a higher level of line 1 caller audio than line 2 caller audio;...
  • Page 53 MSN - Multiple Subscriber Number. Used only when you are using the ETS 300 Euro ISDN Telco mode and another ISDN device is sharing the line with the Telos TWO. MSN1 corresponds to the first B channel. This is simply one of your assigned telephone numbers.
  • Page 54 TELOS TWOX12 USER’S MANUAL • Show 1 (Hybrid 1) has access to lines 1 through 6. Lines 1 through 5 are “normal” lines while Line 6 is a “priority” line. Line 6 is not affected by the “Block All” function.
  • Page 55 TELOS TWOX12 USER’S MANUAL 4. Press <z> to highlight Set Show Lines and then press <SELECT>. 5. Use the <z> and <z> to highlight each line. For each line Use the “+” or “- “ Softkeys to select from the following options: •...
  • Page 56 6. Press the BACK softkey repeatedly until back to the main menu. 7.4.3 USING A MULTI-STUDIO TWOx12 When the Config Shows option in the SYSTEM menu of the TWOx12 is set to a setting other than Single the system is operating in a multi-studio mode (split mode operation).

  • Page 57: Selecting A Show

    The above shortcuts can also be used on the Desktop Director CONNECTING TO A SHOW USING ASSISTANT PRODUCER IMPORTANT TIP! You must use Assistant Producer 3.5 (for 2101 & TWOx12) or greater to use the SPLIT modes. If you are an Assistant Producer 2.0 user contact Telos Customer Support for assistance additional information.

  • Page 58: Remote Control

    “ok”. You should now see a Connection Description dialog box requesting that you name the setup and select an icon. Enter the desired name such as “Telos TWOx12 on com 2” and click on an icon (we like the electron symbol which is last). Now click on “ok”.
  • Page 59 Now click on “ok”. Next you will see a Com Properties Dialog box. Enter the following information: • Bits Per Second - set to match Serial Bitrate setting in the TWOx12’s System menu selection. • Data Bits - set to 8 •...
  • Page 60 TELOS TWOX12 USER’S MANUAL SetTelnetPass SetAPPass SetAPUser EnableAPServer EnableLegacyAPServer LnSPID LnTelco LnSet DDStudio LnStudio LnStat LnState LnCIDset MallocInfo TaskInfo Uptime Version Log help ? Reboot Type 'help <command>' to get specific help. Type 'help *' to get detailed list of commands.
  • Page 61 TELOS TWOX12 USER’S MANUAL Name..: Dump Name..: W2 Parameter..: Dump <loc> Parameter..: W2 <loc> <valu> Description: Do a memory dump Description: Write word <valu> to starting at <loc> <loc> Name..: R4 Name..: W1 Parameter..: R4 <loc> Parameter..: W1 <loc> <valu>...
  • Page 62 TELOS TWOX12 USER’S MANUAL Description: Read <addr> offset in Description: Display duplex level or set <loc> memory of DSP <num> to [level] Name..: AudSet Name..: AudAGC Parameter..: AudSet Parameter..: AudAGC [level] Description: Display current audio Description: Display receive AGC or...
  • Page 63 TELOS TWOX12 USER’S MANUAL Description: Display current Studio Description: Display or change FTP Adapt setting or set to [value] site Name..: AudBurst Name..: IPdns Parameter..: AudBurst [0/1] Parameter..: IPdns [DNS] Description: Display Adapt Burst Description: Display or change DNS setting or change to [0/1] server Name..: NVclear...
  • Page 64 TELOS TWOX12 USER’S MANUAL Description: Display information on all Description: Enable/Disable legacy AP or a given director server Name..: LnMSN Name..: LnSPID Parameter..: LnMSN Parameter..: LnSPID Description: Display or set MSN for a Description: Display or set SPID for a...

  • Page 65: Ethernet 10Base-T Control

    Section 7.5.1 for a list of commands available). Simply use your favorite Telnet client to connect to the IP address of the TWOx12 you wish to control. When starting a Telnet session, a Login name is asked. The default one is: ”telos”. To change it, use the command SetTelnetPass described above.

  • Page 66: System Audio Processing And Feedback Control

    A high pass filter with a 250 Hz crossover frequency improves hybrid performance and enhances intelligibility by removing unnecessary low-frequency information from the audio present at the TWOx12’s input. This function is not defeatable. Frequency Shifter The frequency shifter (pitch shifter) inserts a small, unnoticeable, shift in frequency to the send audio to prevent feedback buildup when the system is used with open speakers.

  • Page 67: Receive (Caller) Audio Processing

    An important additional feature of this AGC is that it is cross-coupled to other sections of the TWOx12 and can therefore reliably distinguish between caller audio and hybrid leakage. This allows a more aggressive gain control for bringing up low- level callers while still preserving excellent hybrid performance.

  • Page 68: Duplex "Ducking" System

    TELOS TWOX12 USER’S MANUAL domain. The Receive EQ selection controls the type of equalization applied to the receive telephone audio as follows: The caller audio is passed without modification. The Rcv EQ values (see below) are ignored in this mode.

  • Page 69: Feedback Control

    10-12. 7.6.4 Feedback Control We’ve carefully designed the TWOx12 so that problems with feedback should be rare. However, despite excellent trans-hybrid loss and a number of other features, you can probably induce feedback if you try sufficiently hard (try cranking up your studio monitors).

  • Page 70: Technical Data And Troubleshooting

    It is stored in a partition of the non-volatile memory on the motherboard. While there were a few changes to the firmware early on in the life of the TWOx12, the firmware is now stable and further changes are unlikely.

  • Page 71: Replacing Software

    The TWOx12 must be programmed with the following information (see Section 7.3.3 for details): IP Addr This is the IP address for this TWOx12. As with any computer on an IP network the TWOx12 must have an IP address before it can be used over the network. Subnet This is your subnet mask.

  • Page 72: General Troubleshooting

    6) You may need to reprogram some of your settings, check them after installing the new software. Please return the old SIMM module to Telos, via regular US Mail. Your prompt return of this module will allow us to continue to offer you upgrades in the future, at the lowest possible cost.
  • Page 73 "Everything You Know is Wrong". Use that as your guiding philosophy in troubleshooting a Telos Two set-up. For example, just because you checked the Telco line last night and it was fine does not mean that it's OK now.

  • Page 74: The Status Screens

    Green LED next to each U interface jack. Available line status messages are: No line connected, or connected to wrong jack on the TWOx12. OR, Deactivated ETS 300 permits the Telco to put a line to sleep. Deactivated will be displayed when this occurs.

  • Page 75: Using Loop Modes For Troubleshooting

    First try disconnecting the ISDN circuit(s) in question and waiting a full 60 seconds (leave the TWOx12 on) and then reconnect the circuit(s). What kind of ISDN do you have, and is the TWOx12 set to match it? The telephone company should have given you the ISDN protocol when the line was ordered.
  • Page 76 This screen shows the status of the ISDN connection. You can determine if the line is connected and whether the line and the Telos TWOx12 are successfully configured. In addition, information about calls is displayed here. One of the following status words will be shown for each active ISDN channel: No line connected, or connected to wrong jack on the TWOx12.
  • Page 77 If the problem remains with the line, then call your Telco. On the other hand, if a line that works in one interface fails to work in another interface of the same TWOx12 then you have an problem with your ISDN interface card (or possibly elsewhere in the TWOx12).
  • Page 78 TWOx12’s integrated ISDN analyzer. This enables you to look at the transactions between the Telco line and the TWOx12, so that a judgment can be made as to whether the problem lies within the TWOx12 or with the programming of the Telco switch.

  • Page 79: Troubleshooting Desktop Director Problems

    It is hard to deny evidence provided by their own gear. In rare cases, there could be a software bug in the TWOx12 that reacts badly to something coming from the ISDN line. Telos customer support will communicate the problem to our engineering guys for resolution.
  • Page 80 4) Analog Line Interface (slots A-C) part # 1701-00033 [old # 0212-1300] (please specify country) 5) Firmware flash memory SIMM module part # 1166-00005 (specify TWOx12 & version number) [old # SIMM-2x12]. *You will note that the Worldwide ISDN interface (slots A-D) and the Desktop Director interface (slots E &...

  • Page 81: Isdn Cause Phrases/Values

    ISDN logging through the serial port or Telnet port. These “Cause Values” are numbers generated by the network, which the TWOx12 translates to the associated phrases. When possible, we use those suggested by the Bellcore standard. Note that in some cases there may be more than one meaning.
  • Page 82 TELOS TWOX12 USER’S MANUAL This cause indicates a call has been preempted. Cause No. 9 – Preemption, reserved This cause indicates a calls has been preempted due to the circuit being reserved for reuse. Cause No. 10 – Prefix 1 not dialed [DMS Custom only] This cause indicates that the prefix 1 was not included in the called party address and is required.
  • Page 83 TELOS TWOX12 USER’S MANUAL unable to be delivered to the remote party; e.g. a physical layer or data link layer failure at the remote party, or user equipment off-line. Cause No. 28 - Incorrect number (invalid number format, address incomplete)/Special intercept...
  • Page 84 TELOS TWOX12 USER’S MANUAL layer malfunction locally or at the remote network interface or that a call was cleared due to protocol error(s) at the remote network interface. Cause No. 42 – Net busy, redial (Switching Equipment Congestion) This cause indicates that the switching equipment generating this cause is experiencing a period of high traffic.
  • Page 85 TELOS TWOX12 USER’S MANUAL provisioning of the line at the time of installation. Cause No. 58 – Bearer capability not presently available This caused indicates the users has requested a bearer capability which has been implemented by the equipment, but is not available at this time.
  • Page 86 TELOS TWOX12 USER’S MANUAL Cause No. 85 – No call suspended This cause indicates that no call is suspended. Cause No. 86 – Requested call identity cleared This cause indicates that the call having the requested called entity has cleared.
  • Page 87 TELOS TWOX12 USER’S MANUAL Cause No. 100 – Invalid information element contents This cause is returned when the equipment sending this cause has received an information element that it has implemented; however one or more field of the information element are coded in such as way (e.g., truncated, invalid extension bit, invalid field values, etc) that has not been implemented by the equipment sending this cause.

  • Page 88: Specifications

    TELOS TWOX12 USER’S MANUAL Specifications General Interface for connecting ISDN BRI (S0) or Analog (loop start POTS) telephone lines to professional studio equipment. Switching matrix and Conferencing • DSP audio routing and switching • 12 Conference Bridge Resources are flexibly allocated among lines, hybrids, and Desktop Directors when button-mash conferencing.
  • Page 89 TELOS TWOX12 USER’S MANUAL Headroom before clipping; +13 Bridging, >100KΩ impedance. Analog-to-digital converter resolution; 20 bits Receive Output (Analog) XLR male active differential. Pin 2 high. Output level; adjustable from –7 to +8 dBu (nominal) Clip point; +21dBu Output impedance; <60Ω X 2 Frequency Response (±...

  • Page 90: Control Ports

    TELOS TWOX12 USER’S MANUAL Control Ports RS-232; 9 Pin D-sub connector DCE connector supports asynchronous data, 8 bits, no parity, 2 stop bits, 2400-38,400 bits per second. Ethernet; 10Base-T FTP for software updates Telnet for command line control Integral Assistant Producer 3.x Server (port socket 9998) allows up to 8 copies of Assistant Producer (version 3.5 or later) to connect simultaneously...
  • Page 91 TELOS TWOX12 USER’S MANUAL NOTES: CHAPTER 9 SPECIFICATIONS...

  • Page 92: Warranty And Application Caution

    Product must be delivered, shipping prepaid, to: Telos Systems, 2101 Superior Avenue, Cleveland, Ohio 44114. Telos Systems at its option will either repair or replace the Product and such action shall be the full extent of Telos Systems’ obligation under this Warranty. After the Product is repaired or replaced, Telos Systems will return it to the party that sent the Product and Telos Systems will pay for the cost of shipping.
  • Page 93 TELOS TWOX12 USER’S MANUAL This page is intentionally left void of useful information, except for this message, of course. CHAPTER 10 WARRANTY NOTICE...

  • Page 94: Appendix 1 - Known Working Spid Formats By Telephone Company

    SPIDs will be indicated by a line status of “Wait” on the ISDN status screen. Often the Telco will leave the last “00” or “01” off the end of your SPID when giving it to you. For the latest list check Telos Systems’ web page. Additional SPIDs can be found at INTEL’s SPID Page: http://support.intel.com/support/isdn/SPID_Tip.htm...
  • Page 95 TELOS TWOX12 USER’S MANUAL Rochester Telephone XXXYYYZZZZ0101 01YYYZZZZ0 SBC- See Pac Bell, Ameritech, or XXXYYYZZZZ0001 Southwestern Bell 01YYYZZZZ000 SNET (Southern New England XXXYYYZZZZ00 Telephone) 01YYYZZZZ0 01YYYZZZZ00 XXXXYYYZZZZ 01YYYZZZZ000 SPID1 XXXYYYZZZZ00 XXXYYYZZZZ0101 SPID2 XXXYYYZZZZ01 Southwestern Bell SPID1 XXXYYYZZZZ0000 SPID2 XXXYYYZZZZ0001 XXXYYYZZZZ0101...

  • Page 96: Appendix 2 - Cable Guide

    11.2 Appendix 2 – Cable Guide This appendix is intended to be a reference tool that covers various modular telephone-style connectors used in Telos products. IMPORTANT! Be very careful to label wiring used with RJ- style connectors. In some cases they have power on them, and there is a risk of applying this power to something which does not expect it.
  • Page 97 TELOS TWOX12 USER’S MANUAL COLOR White/Green Green White/Orange Blue White/Blue Orange White/Brown Brown TIA-568-A T568A color codes. Cat 5 cable Is used and both ends are Identical. The color conductor of each pair may or may not have a white stripe. The other half of the pair may be either white or white with a colored stripe.

  • Page 98: Desktop Director™ To Twox12 Cable Pinout

    Crossover 10/100 Base-T Ethernet Cable Pinout When connecting a 10Base-T device (such as a computer or the TWOx12) to a hub, a “straight through” cable is used. Note that this implies that the jacks on the hub are different than those on the computer, since the “output”...

  • Page 99: Isdn S Interface Cable Pinout

    TELOS TWOX12 USER’S MANUAL Therefore the standard cable will not work if you wish to connect 2 computers together without a hub. This can be accomplished with the cable below. 10Base- T Crossover Cable COLOR White/Green Green White/Orange Blue Not Used...

  • Page 100: Isdn U Interface Cable Pin-Out

    Ethernet 10Base- T. The wiring configuration is the same as TIA- 568A (TIA- 568B is electrically equivalent). Since the TWOx12 does not use or provide power the pair corresponding to pin 1&2 and 7&8 may be omitted, if desired.
  • Page 101 TELOS TWOX12 USER’S MANUAL ISDN U interface connector (USA & Canada only) FUNCTION Not Present Line (R) Line (T) Not Present Typical ISDN U interface cable. This is identical to a POTS telephone cord. Polarity should not matter. APPENDIX 2...
  • Page 102 USA, however the majority of these principles will apply anywhere. The TWOx12 is really a sophisticated “baby” telephone system. As such it is similar an Electronic Key Telephone system designed for general business purposes. We will use the generic term “Key System” in the following discussion.
  • Page 103 TELOS TWOX12 USER’S MANUAL well as a transmitter, but was entirely inappropriate as a receiver. When coupled with one of the Bell transducers this transmitter worked better (higher levels and less distortion) than using two of the Bell devices. The infant telephone industry grew rapidly. While the Bell Company had a head start, the giant Western Union rapidly caught up.
  • Page 104 TELOS TWOX12 USER’S MANUAL became rapidly clear that the utility of the telephone was directly proportional to the number of people to whom one could talk. For instance, to use our example above: If the businessman were to call and inform his wife that he would be bringing home an Associate for dinner, the wife could then phone the store and get more provisions.
  • Page 105 TELOS TWOX12 USER’S MANUAL installed and terminated at a central frame ready to be hooked up to the switching equipment prior to receiving a call for new service. 3) They could build and share “toll” circuits and other facilities among users. For example, one or two toll circuits (called toll trunks) could be built from town A to town B.
  • Page 106 TELOS TWOX12 USER’S MANUAL An introduction to Private Telephone Systems Many readers will recall seeing old motion pictures where multiple phones are shown on a worker’s desk at a business establishment. Film writers often took advantage of the absurdity of talking on more than one phone at a time, or trying to determine which of several phones was ringing, for comic effect.
  • Page 107 TELOS TWOX12 USER’S MANUAL 4) There is no way to directly “call” from one phone in the system to another. Any number of users may select an “intercom line” (a common circuit with just talk-battery on it) and talk, however this does not go through the KSU or really constitute a “call”...
  • Page 108 TELOS TWOX12 USER’S MANUAL Centrex In the 1970s, with the deregulation of the telephone companies, end users began to have the right to purchase telephone systems from suppliers other than the AT&T owned phone companies. The end user suddenly had many more choices.
  • Page 109 “announcer” audio. When Steve Church (our founder) designed the first adaptive DSP hybrid, the Telos 10, he designed it to work with the 1A2 Key systems that were ubiquitous at the time. It could also be easily adapted to direct connection to a single phone line or a home-built line switcher.
  • Page 110 TELOS TWOX12 USER’S MANUAL the result is that dial tone inadvertently get placed on air rather than the caller who hung up. ISDN PRI is the ideal solution for flexibility and supervision. The D channel protocol allows for sophisticated operation difficult to achieve in any other way.
  • Page 111 TELOS TWOX12 USER’S MANUAL 7) Contact some references and see how satisfied they are with the customer service and company in general. Our experience is that the new CLECs (Competitive Local Exchange Carriers) are often more “friendly” to do business with. Often, their smaller bureaucracies allow you a better chance to get through to the person you need to deal with easily.
  • Page 112 2 wire U interface while others offer the 4 wire S interface (USA & Canadian users note; if you require a TWOx12 with the S interface you will need to special order the version normally shipped only to outside the USA & Canada.
  • Page 113 Note that transfers from the TWOx12 back to the main system may not be possible. 3) Caller ID is more likely to be supported on a PBX BRI port than a PBX analog port.
  • Page 114 TELOS TWOX12 USER’S MANUAL your needs, we hope that this discussion will help you build a system that meets your needs and also takes advantage of the economies possible when the newer technology is applied to today’s broadcast facility. 02/2000, 05/2000, 05/29/2003...

  • Page 115: Appendix 4 - Glossary Of Useful Isdn And Telephone Terminology

    TELOS TWOX12 USER’S MANUAL 11.4 Appendix 4 - Glossary of useful ISDN and Telephone Terminology You’ll get better results from the Telco if you understand, and speak, the lingo! We have tried to include the typical acronyms used by Telco personnel. We’ve put the definition under the most commonly used acronym.
  • Page 116 TELOS TWOX12 USER’S MANUAL T-carrier system. The blue alarm signal is required because of CCIS increased efficiency since no communications in some cases T-1 repeaters will become unstable if (voice) channels are used merely to report an “all trunks inadequate 1's density is not maintained.
  • Page 117 TELOS TWOX12 USER’S MANUAL should not occur as the busy status in response to a call rate and which can also simultaneously “decode” such coded attempt is conveyed over the separate SS7 network. audio. Strictly speaking, a codec does not include an ISDN Therefore, the need for choke exchanges has pretty much terminal adapter and related equipment.
  • Page 118 Note that there are usually more DID numbers Point” (PTP) and Custom Point-to-MultiPoint (PMP). The than there are DID trunks. See DID number and DID ISDN protocol has no relation to where one may call. Telos extension. equipment does not support PMP.
  • Page 119 TELOS TWOX12 USER’S MANUAL DS2-Digital Signal Level 2. Data rate of 6.312 mbps (4 Exchange- Another name for a Central Office (most often times the DS1 rate). See DSØ and DS1. used in European countries). Also used in the USA &...
  • Page 120 IEC -1) InterExchange Carrier. “Long Distance” carrier. specifications. The Telos Zephyr, ZephyrExpress, TWO, and Handles Interlata and interstate calls. Also referred to as TWOx12 support IOC package “S”. Search for document IXC. 2) International Electrotechnical Committee. A NIUF 428-94 at NIUF’s web page http://www.niuf.nist.gov/ European standards body best known for the power plug for more information.
  • Page 121 TELOS TWOX12 USER’S MANUAL One-x-Six, TWOx12 and Series 2101can be classified as Line Format, T1-Modern T1 circuits usually use either Key Telephone Systems. See also PBX. Superframe (sometimes called SF or D4) or Extended Superframe (sometimes called ESF) line formatting. The LATA- Local Access and Transport Area.
  • Page 122 The Zephyr Xstream generally does Adapter” and is built-in to Zephyr Xstream, Zephyr, not require that these numbers be present. See Directory ZephyrExpress, Telos TWO and TWOx12 systems sold in Number and MSN. the USA & Canada. See also NCTE MSN- Multiple Subscriber Number (Euro ISDN).
  • Page 123 USA versions of the Zephyr and ZephyrExpress supply PS2 the S Interface. A few vendors are now offering BRI over power in the “S” jack. The Zephyr Xstream and Telos TWO the U interface as well. PRI over DSX-1/T1 or E1 is also provide this on all versions.
  • Page 124 S interface (the Zephyr Xstream, Zephyr, For the National ISDN, Custom PMP, and DMS custom ZephyrExpress and Telos TWO do). Multiple devices can ISDN protocols the equipment requires that the user to share an NT1 by connecting on the S interface. Also known program SPIDs into it.
  • Page 125 Mono using one B channel or L3 Stereo using 2 B channels. equipment as well as to the NT1 on the “S” or “T” interface. Telos also maintains an identically configured test line in Freising, Germany at 49 81 61 42 061 (dial this number Tandem Switch- A switch which is between two others.
  • Page 126 See Trunk. wire circuits. No hybrid is perfect, and those used by the TR-008 - See SLC-96 phone company can be poor. However, the hybrids in Telos TWO/2101 family are approaching perfection! Trouble Ticket-A Telco “work order” used to track Customer Repairs within the Telco.
  • Page 127 TELOS TWOX12 USER’S MANUAL Normally we don’t attempt to preserve pagination (by inserting “blank” pages) in the Appendix. However, the gross defects in the popular word processing software used to generate this document required that we do so here. APPENDIX 4...

  • Page 128: Appendix 5 - Suggested Reading

    TELOS TWOX12 USER’S MANUAL 11.5 Appendix 5 - Suggested Reading ISDN & T1 ISDN; Gary Kessler & Peter Southwick; McGraw-Hill, New York, 1998. Quite thorough coverage of ISDN and other related technologies. Great introduction to Layer 3 signaling. ISDN – A Practical Guide to Getting Up and Running; William A. Flanagan; Flatiron Publishing, Telecom Books, New York, 1996;...
  • Page 129 In order to communicate accurately what it is you need, we think you should be familiar with the vocabulary used to describe ISDN. As with anything, for best results, it helps to know what you are talking about. For an in-depth glossary of terminology please check Telos’ web site at http://www.telos-systems.com Names We’ve seen Basic Rate Interface ISDN called by a number of names.
  • Page 130 S interface may be on user equipment. If you plan on taking your TWOx12 to Canada or North America you will need to rent or purchase an external NT1 for use while in those countries. One rental source is Silver Lake. See their website at www.silverlakeaudio.com...
  • Page 131 Line deactivation is acceptable; Please provide your default setting for this parameter. You may call the manufacturer of the TWOx12, Telos Systems, at +1 (216) 241-7225 for any additional required information about ISDN compatibility. Ask for Telos TWOx12 Customer Support.

  • Page 132: Appendix 7 - Isdn Bri Ordering Guide For Usa & Canada

    This guide takes you through the process step-by- step. Telos Technical Support is available to answer any further questions you may have. On one ISDN BRI circuit, there are three simultaneous bi-directional channels: two 64kbps “bearer”...

  • Page 133: Telephone Number

    At their central offices, the telephone companies use either AT&T/Lucent 5ESS, Northern Telecom DMS100, or Siemens EWSD switching equipment. While each will work with the TWOx12, there are some differences which need to be taken into account when lines are APPENDIX 7...

  • Page 134: Directory Number (Dn)

    These are simply your seven digit phone numbers as would be listed in your local telephone directory and will need to be entered into your TWOx12 (in rare cases you may need to enter the full 10-digit number). Normally each ISDN BRI circuit will have two DNs and two SPIDs.
  • Page 135 Switched Data. (In contrast to PSD, Packet Switched Data, which is possible, but irrelevant to our needs.) CSD is not required for Telos TWOx12 connections. Even though you are sending a stream of data, the phone network knows to translate this back to analog at the far end due to the call setup message sent on the D channel when the call is made.
  • Page 136 These should give the phone company all of the information they need. The majority of installations, if ordered in writing, with this information, go smoothly. If you do experience problems Telos technical support is here to help. You may also wish to look at our troubleshooting information in the TWOx12 manual.
  • Page 137 Please create a hunt group with all Directory Numbers except (Specify) _________________________ No Hunt groups You may call the manufacturer of the TWOx12, Telos Systems, at +1 (216) 241-7225 for any additional required information about ISDN compatibility. Ask for Telos TWOx12 Customer Support.
  • Page 138 PROTOCOL: National ISDN-1 From AT&T 5ESS, Northern Telecom DMS100, and Siemens EWSD. If you use IOC Capability Packages, please use Capability Package ‘S’ unless otherwise specified. CO Values Line Type: National ISDN-1 Bearer Service: CSD/CSV on both channels (CSV is required; CSD may be omitted if requested by user) TEI: One dynamic per number Terminal Type: Terminal Type A (Voice Terminal Mode)
  • Page 139 (Prohibit REX on BRI lines per line) Give us: 1) One Directory Number PROTOCOL: AT&T Point-to-Multipoint (Custom) Not supported by the Telos TWOx12. Please provide National ISDN or AT&T Point-to-Point (Custom) APPENDIX 7 ISDN BRI ORDERING GUIDE FOR USA & CANADA...
  • Page 140 Manual History 0.9 RKT 01/2000 1.0 RKT 02/2000 1.0.1 RKT 05/2000 2.0 RKT 06/2003...

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