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Telos One-x-Six User's Manual

1. 2 EN Output j Level 27 ex A ES M A D et 2 S 95 Telus ONE audto block diagram 2 3 OTHER REAR PANEL CONNECTIONS In addition to the six RHIC modular jacks marked 1 6 under CO LINES IN and the hybrid XLR connectors as already described the rear panel of the ONE 1 51x has three more RJ11C modular jacks another female XLR one male DB 9 connector one temale DB 9 connector and the AC receptacle SWITCH CONSOLES 5232 msg PROGRAM ON MOLD Telos ONE x Sx Rev C INSTALLATION 15 16 2 3 1 AUX PHONE The RJ11C jack labelled AUX phone is used for a standard single line telephone These phones are sometimes referred to as 2500 sets They are the type of single line phone you find practically everywhere at rather moderate cost Generally this phone is used for call screening and other off air conversations Standard two or four conductor modular cables are required The bottom row of LINE buttons on the Telos Switch Console serves as the line selector Lines must be manually selected each time the phone is taken off hook If screening is taking place outside the air studio vou will have to acquire another Telos Switch Console Telos does not provide an AUX phone with the ONE x Six We recommend that you use a high quality instrument for this application SECOND HYBRID OPTIONAL The ONE x Six allows vou to connect a second external
2. CHA Y Es 28 OL LWX rio 7 2j AD m ud emi Sad P 1 L 222 Wig PES Y Yo PH 2 031 2 AS 8 0 j AS 440 5 9c Q Ast 560 tzo SSA c Led 220 9f HM Mom FONO OND Gigil 5 stro 2105 DOUG 429 N3 N3 t Zeu OLNI Sio IT roo PINO PNI l VELOX Ld ro Telmo ENI FIELNO ENI 944 of oy Elo Lino ZNI RE 10 UNI INI E Lo 80982 a Lasati O 99 60 A Vid 5 014 LIX ASt 90 19228 o Qv Z Od Zd 0v Od PIA 24 20 BENI po fkavsoa iv 24 2 24 os zprav od 2 9 A Ed FEC Lth od a OdVA Od 89 dd n SN3S ar daa rz d GHVOSAI Ast tee n nne TT AS 1111 SOTA Be 1 3 JJe p 1 21 22 GRE TA uy oe cwm 11 6 G 80 GIUM a ES ENO pe ee RE E AA AA SN 440 JH SNyN 14 uo a a ON 6 5 COLUMN1 COLUMN2 COLUMN3 COLUMN4 COLUMNS COLUMN 6 J4 4 peo Sarre share ROW A
3. Vss 55 Telos ONE X Six Rev C hybrid MPU DTMF RF3 1N4730 D1 1N4730 STOCK UNITS Jumpers installed JP1 JP2 amp C25 R5 5600 R36 R37 C23 C24 C25 amp PTC1 not stuffed 5V RP2 L1 L2 17 3 24 18 E eas A ASS El FE AS A EA HYBOFF R1 gt 5 3 3K C24 JP2 11 13 5 V 45V 7901 2 C25 l R5 R9 M 812 Ut2 5 7901 US 124 va Y DGnd LI IN v22 va vB C 228 DATA BLS C cs elos ONE X Six Rev C hone amp control R13 rr 1 INPUT al LINE So MIE 1 817 R15 1 OOK 1K a D1 LVL 14 5 2912 10K 10K 56 2K 4 P2 OUT LVL DTMF 1 2 R23 3 49 9 J3 R22 OUTPUT 49 9 45V U12 1 A 7901 Veco CLKR m out CLKX 4 dw E 2 Cix SU 1 FSR SCA E J2 PESA 1505 re DXA ila AUX MIX 254 521 b E 32060 na CAD pus j ND ABRE v DGnd Telos ONE X Six Rev B input amp output audio 1594 NOILO3S 5 H3MOd 9 08409 5 soja os Ot 812 12 012 110 oc Cd E CU 5 5 CN ia SHSOLL SO UIA xs 18 4414
4. first caller from the top row of the Switch Console and the second caller from the bottom row Special Function Buttons There are six special function buttons below the line selection buttons From left to right these function buttons are NEXT Puts the line that has been ringing in the longest on air through the internal hybrid If no lines are ringing in it selects the line that has been waiting on screened hold the longest This function is frequently used for contests when the system is in the auto answer mode or if vour week ender jocks need a simple wav to use the system If no calls are in SCREENED HOLD or RINGing in when the next button is pressed the line that is on air and not locked in will release BUSY ALL With the first press of this button all lines that are neither in use nor on hold are made busv On the second press those lines are dropped This function is helpful in preventing callers from jamming vour phone lines just prior to your accepting calls for a contest The LED above BUSY ALL is normallv lit When the BUSY ALL button is pushed this LED will blink All of the LEDs above the LINE buttons for lines that have been busied will flash with a unique cadence When the BUSY ALL button is pushed the second time LED status reverts FLASH NEW or AUTO ANSWER The FLASH NEW button is primarily for use with PBXs or Centrex telco lines which require flashing to access features Pressing it causes a 50
5. With the first press of this button all lines that are neither in use nor on hold are made busv On the second press those lines are dropped This function is helpful in preventing callers from jamming vour phone lines just prior to vour accepting calls for a contest The LED above BUSY ALL is normallv lit When the BUSY ALL button is pushed this LED will blink All of the LEDs above the LINE buttons for lines that have been busied will flash with a unique cadence When the BUSY ALL button is pushed the second time LED status reverts Creating a Custom Busy Pattern By detault 811 lines are busied However it is possible to create a custom pattern of lines to be busted First enter the special bus V set up mode bv pressing in sequence J s BUSY ALL The LED above the BUSY ALL kev will flash Select the lines vou want to be busied bv toggling the line buttons on the for row Any line can be added or removed trom the busy function by pressing its button again When vou have the pattern that veu want prec ne cb ALL kes to eare the special setup Mode Tis iseare will ate cour setup untl itas reprogrammed FLASH NEW or AUTO ANSWER The FLASH NEW button is primarily tor use with or Centres telco lines which require tlashing to access features Pressing it causes a 500 millisecond c interruption on any lines Telos ONE x Six Rev OPERATION C2 36 The FLASH NEW button can also be used for a dro
6. BUSY gt DELAY DUMP U00 gt UG4 NEXT U05 Causes all function keys to transmit to computer onlv the functions are not actually performed unless the computer echoes them This permits the buttons to be used for various computer related functions or for computer intelligence to intervene in their processing This command must be sent in intervals of one minute to maintain the mode the ONE x Six will revert to normal mode after time out to prevent problems with computer being turned off etc Function keys back to normal operation Causes Telus to return line status in format given below whenever anv line status changes Replies with Line monitor ON Turns monitor mode off Replies with Line monitor OFF Sets all lines to off etc Returns a status screen Primarily tor debugging testing ete The bold and underlined letter in each Command is the only which is sent Line numbers must be padded that is they must always be two digits Be sure to send CAPITAL letters Telos ONE x Six Rev OPERATION 39 40 Examples To puta line 1 on hold send To request line 5 status send Q04 To place in monitor mode send M Telos to Computer Commands The line status is returned from Telos to the computer in the following format a capital letter indicating the status followed by two digits indicating the line number OFF XX Indicates line XX is off ON MAIN XX Indicates
7. 4 7uF 25V tant U luF 50V mono 0 1uF 50V mono 50V mono 0 1uF 50V mono 1000pF 50V mono Designation C43 C44 C45 C46 C47 C48 C49 1 1 6 1 1 2 6 2 D1 D2 D3 D4 1D1 6D1 1D2 6D2 1BR1 6BR1 Q1 Q2 L1 L2 L3 LY 1 10 1 11 1 12 LIS 1 14 115 VRI VR2 121 641 21 172 622 22 Telos ONE x Six Rev C PARTS AND SCHEMATICS Description 1uF 25V tant 0 1uF 50V mono 0 01uF 50V mono 0 018 50V mono 0 01uF 50V mono 10pF 50V mono 100pF 50V mono 0 47uF 250V film 47uF 10V tant 1N4730 3 9v zener 1N4730 3 9v zener 1N4148 or 1N914 1N4148 or 1N914 15V zener 1N4744 rectifier 1N4004 bridge rectifier 2W04M p channel JFET J176 2N3906 pnp Green LED LTL 1234A Green LED LTL 1234A Green LED LTL 1234A Green LED LTL 1234A Green LED LTL 1234A Red LED LTL 1224A Red LED LTL 1224A Green LED LTL 1234A Green LED LTL 12344 Green LED LTL 1224A Green LED LTL 1234A Green LED LTL 1234A Green LED LTL 12344 Green ED 11 124 Yellow LEL LIL 1254A LM7905 reg LN 5v reg varistor 514 175 varistor 514K250 varistor 57K25 varistor S7K25 65 Designation Description Designation Description 1 Neutrik NC3FDHBAG XLR female 1 RF filter 27K51R1 05 2 Neutrik NC3MDHBAG XLR male RF2 RF filter 27K51R1 05 J3 Neutrik NC3MDHBAG XLR male RF3 RF filter 27K51R1 05 4 DB 9 female RF4 RF filter 27K51R1 05 J5 DB 9 male RF5 RF filter 27K51R1 05 16 dual RJ12 7 dual six pos RJ12
8. 7 5 19 90 19 49 90 1 JOKQ 10KQ LOKQ 10 47 59 19 47 50 1 not stuffed not stuffed 47 50 1 47 50 15 4 2 3 1 47 502 1 Designation R42 R43 R44 R45 R46 R47 R48 R49 R50 R51 R66 R67 1 1 6 1 1 2 6 2 1R3 0R3 1R4 6R4 1R5 6R5 R oRe FI eF1 RPI RP2 RP3 RP4 RP5 RP6 RPS RPIS Telos ONE x Six Rev C PARTS AND SCHEMATICS Description 47 50 1 47 50 19 5110 1 15KQ 1KQ 1 10KQ 10KQ 2KQ 2KQ 1 5KQ 18 2KQ 1 82 5KQ 1 39 2KQ 1 221KQ 1 39 2KQ 1 10KQ 10KQ 30 1KQ 1 IMQ 1MQ 2 21K0 1 22 1KQ 1 13 3KQ 1 10KQ 10KQ 220 1500 150Q 2 21 1 47 502 1 1000 10042 Has IOSIP 33002 10 SIP 3300 SIP 1 4 8 SIP 10KQ x 8 SIP 10 o SIP 1 1 3 x 6 SIP 6800 x o SIP 7 Designation C1 C2 C3 C4 C5 C6 C7 Descripfion 0 01uF 50V mono 0 01uF 50V mono 0 1 Farad Gold Cap 22pF 50V mono 2000pF 50V mono 2000pF 50V mono 0 0l1uF 50V mono 4 74F 25V tant 4 7uF 25V tant 0 014 F 50V mono 0 01uF 50V mono 22pF 50V mono 22pF 50V mono 220pF 50V mono 2 2uF 25V tant 4 7uF 25V tant 4 7uF 25V tant 0 1 50V mono 0 1 50V mono 0 1uF 50V mono 0 1uF 50V mono 1000pF 50V mono not stuffed not stuffed jumpered 4 78 25 tant iuF 50V mono 0 001uF 50V mono 0 1uF 50V mono 220pF 50V mono 22uF 25V tant Jury tant 2 tant Jb 25V tant 1OpF 50V mono l uF 25V tant
9. PARTS LISTS and SCHEMATICS PARTS LISTS ONE x Six 1 Complete Parts List 63 Switch Console 2 Central Processor Unit 67 3 Actuator Board 68 4 DTMF Board 68 SCHEMATICS ONE x Six Telco Detect Circuits MOH w AGC Schematic Tip Ring Routing and Control Schematic Microprocessor Section Schematic Hybrid Microprocessor Schematic Phone and Control Schematic Input and Output Audio Schematic Switch Console O E 8 Central Processor Unit Schematic 9 Actuator Board Schematic Telos ONE x Six PARTS LIST Designation Description U1 DSP Microprocessor 320C25 U2 27C292 3JL EPROM U3 27C292 3JL EPROM U4 74AC244 US 74HCT374 U6 74ACT138 U7 watchdog DS1232 U8 74HC590 U9 74HC390 010 Saronix NCH080C 40Mhz osc U11 74HCT04 012 AMD7901CPC CODEC U13 AMD7901CPC CODEC 014 2912 filter 015 NE5532 016 NE5532 op amp 017 NE5532 op amp 018 Microprocessor 80 188 019 PPI 8255 020 Dual UART Z85C30 10PC U21 SRAM 6264LP 10 U21 SmartSocket DS1213 U22 EPROM 27 512 25 U23 74HC573 U24 74ACTI138 U25 DTMF gen TP5088 U26 quad RS 232 receiver MC1489 U27 quad RS 232 driver 1488 U28 LM6321 audio amp U29 NE5532 U30 TPIC6259 bv U31 TPIC6259 bv TI 032 IPIC6259 by U33 LC408 AGC U34 IPICS259 bv TI U35 5532 036 5532 1U1 6U1 HCPL2731 dual optoisolator U 37 TPIC6259 by TI Desienation Ul U2 U3 not socketed not socketed not socketed not socketed not socketed not s
10. ala alo ala 777 alar AAA AD DTMF ASS Y ROW B ala 715 ala t79 ala 11 034 7 ROW D J4 3 J4 1 J4 6 J4 5 lace ie SW30 A ale swag ROWC swig he ow swis swis swig elesyws7 ROWE ala sy owe sw ala ows ROWF sw2c ET SW19 ala 22 sy sle sw23 ROW G 1 2 swg ala sw alaswio ale swg ale ale sw 5 ROW H 60 7 O 80 9 O 100 110 120 11229 150 160 17 18 190 200 210 ee ROW J 240 250 2 22 22 E E ROW TRER 08 ROW M ROW ROW P ROW Q Telos Switch Console Actuator board
11. 001 001 001 001 101 001 9u9 9 9 9uv SHE 9H 981 DN 41170 ASC 5 ASQ 31101 ZESGAN 6609 SE PES 9 ASZO 3 y 269111 A ON ASE O 3 27 A ASZ 4827 9 15 LEO 9 89 juo uo 13 31HONW 411000 ert OTOH NO LLG vvH 943 2 5 DOV 692 m m 2 2 o Nome UNE 5 SS 56 1 Temon 5 RP13 5 79408 RPG 5 0 tip ring routing amp control gt 6 c 25 2 A uJ 2 O 3T LOOP mm mmy 2 LOOF A4 OOF uoles 1085 001001 01 XIS X 3NO 50191 41400 23 S S Lv ON sty 6 u CEZSE 9I lt 8891 on 200 a rey 26258 WON 9 c o a 34009 0912 2 Sip NOIMS vv 2 gt e 2 SSA BriPNti Fee MUS 906 SLAdNI 193130 118 rere SLANI 193130 3NN 27 a AA AA AA 0 lt 2872 0227 20222200 02222 DN 2888 888 me JE 2015 TMS DATA BUS 320025
12. 1 10K rt angle multitum trimpot 8 dual six pos RJ12 P2 10K rt angle multiturn trimpot J9 Neutrik NC3FDHBAG XLR female J10 single six pos RJ12 11 dual six pos RJ12 18 432MHz XTAL 312 4 pos locking header for P S Y2 3 579MHz XTAL SW1 Alt action switch 1K1 6K4 AT amp T solid state switch LH1503AB SW2 Alt action switch 1K1 6K4 8 pin DIP machined socket SW3 Alt action switch 1T1 6T1 MOH audio xfrmr SPT 2105 SW4 Alt action switch T1 Prem 5 110 xfmr SW5 2 pos DIP sw SW6 2 pos DIP sw SW7 2 pos DIP sw SWS8 Alt action switch SW9 Alt action switch W10 4 pos DIP sw 66 Telos ONE x Six Rev PARTS AND SCHEMATICS Telos Switch Console CPU BOARD PARTS LIST Designation U1 U2 U3 U4 U5 U6 U7 U8 U9 Pl P2 VR1 VR2 Y1 Cl C2 C3 4 5 6 9 10 11 C12 C14 C15 C16 C18 Description 87C51 74HC244 74 04 UDN2540B UDN2540B UDN2580A 51232 1489 LT1280 28 pin male header 6 pin male header 78ST105HC 78ST 105HC 9 216 MHz XTAL 10008 25V electr 100uF O 25V electr luF 35V tant 22pF mono 1uF 35V tant 1uF mono 0 01uF mono 0 1 Farad Gold Cap 0 1uF mono Designation U1 U2 U3 U4 US U6 U7 U8 U9 R1 R6 7 R8 RP1 RP2 RP3 RP4 RP5 FB1 FB3 D2 D3 SWI Description 40 pin machined socket 20 pin machined socket 14 pin machined socket 16 pin machined socket 16 pin machined socket 18 pin machined socket 8 pin machined
13. 3 amp 4 on the Remote connector should be connected to the hvbrid s on off control pins Lines put on hold trom the bottom rows HOLD button will now go to regular Hold instead of Screened Hold Refer to section 3 2 for more details Dip 10 1 ELSEWHERE override option OPEN This is the factorv default which prevents lines from being seized bv the svstem whenever thev are off hook via the loop throuch refer to manual Sections 2 1 2B and 3 4 2 for details on the ELSEWHERE state Telos ONE x Six Rev C INSTALLATION ON This enables a user override of calls that are in the ELSEWHERE state A line will go into this state whenever the line is active on the loop through of that line refer to your manual Sections 2 1 2B and 3 4 2 The console displays lines in this state by dimly lighting the BAR LEDs on both rows When DIP SW 10 1 is off lines in this state will be locked out and will not be allowed to interrupt the loop through call in progress When DIP SW 10 1 is on lines in this state can be selected on either row of the console This may be useful for those who use their PBX phone s to screen calls when the lines are looped through the ONE x Six to the station PBX Dip 10 2 Not currently enabled Dip 10 3 Not currently enabled Dip 10 4 Not currently enabled 2 5 FRONT PANEL GAIN ADJUSTMENTS 2 5 1 There are two screwdriver adjustable multi turn trimmers recessed from the front panel m
14. hybrid for conferencing When a second hybrid is used caller to caller gain is improved reducing the likelihood that your conferenced callers will have problems hearing each other For your second hybrid we recommend our Telos ONE or Telos 100 Delta digital hybrid telephone interface be used Did you expect us to recommend otherwise There are three ways to use a second hybrid with the One x Six A Connection to ONE x Six with control from Switch Console The second hybrid is connected to the AUX phone connector on the back of the ONE x Six All six lines can now be routed to the external hvbrid by pressing the bottom row of buttons formerlv the screener buttons on the Switch Console Installation requires a standard two or four wire RJ11C cable Simply run the cable from the ONE x Six s AUX phone connector to the LINE connector on the hybrid To control the second hybrid trom the Switch Console rollow the instructions found in sections 2 3 6 and 2 4 of this manual to give the external hybrid its correct on off control Then set up the hybrid according to the instructions in its manual When a second hybrid is connected through the ONE x Six however most caller screening capabilities are compromised It is possible to work around this problem bv using a single line phone looped through the second hvbrid and taking care not to accidentally put the caller on the air during screening this is done most easily bv breaking the connection to t
15. line XX is active on the internal hybrid HOLD Indicates line XX is on hold SCREENED HOLD Indicates line is in screened hold mode CONF XX Indicates line XX is active on the Aux Phone port BUSIED Xx Indicates line XX has been busied out ELSEWHERE Indicates line XX is on elsewhere Detected from loop current RINGING Indicates line is ringing in U Indicates press of function button on console BUSY gt DELAY DUMP 000 gt U04 NEXT 005 3 5 FEEDBACK CONTROL Sometimes even with the exceptional trans hybrid loss produced by the digital process trouble with feedback mav occur when the svstem is being used with an open speaker Generally this happens only with poorer phone lines or with very weak callers requiring lots of gain in the phone to speaker path Some suggestions for solution of this problem 1 Enable the OVERRIDE function 2 When mic processing 15 being used connect the hybrid input in such a wav that it gets the unprocessed mic signal The problem here is that the mic processing combines with the ONE x Six s digital hybrid input AGC alwavs active to increase gain in the feedback path when no announcer audio is present Depending on the mic processor the feedback margin could be reduced by many dB The hybrid AGC has a smart adaptive gate to prevent inappropriate gain increase but it is thwarted additional processing lf it is not possible to wire aroun
16. or from an external phone system connected to the ONE x Six The bar LED will therefore always reflect the true LINE status Information is provided by both the flash rate of an LED and its brightness Red Bar LED Status LINE Status Slow Blink Line Is Busied Out Medium Blink Line Is Ringing In Very Fast Blink Line Is On Hold Very Fast Bright Blink Line Is On Screened Hold On Continuously Line Is on air or on screener phone Off Continuously Line Is On Hook And Inactive Yellow Round LED Indicator Above each line selection button is a round LED to indicate hybrid status Yellow Round LED Status Hybrid Status on Indicated Line Blinking on air Standard mode On Continuously on air conference mode Off Continuously Not on air or being screened A quick run through the various line statuses will familiarize you with what each blink rate looks like and really means 3 2 4 PLACING CALLERS on air Placing Callers on air in Standard Mode To place a caller on air push the desired LINE button on the top row The round LED will flash and the bar LED will be lit continuously The line be dropped or placed on hold using the DROP and HOLD buttons on the row vou have selected If vou select another line on the same row the line selected earlier will be dropped unless the line is placed in conference mode Telos ONE x Sx Rev C OPERATION 33 34 Placing Callers on air in Conference Mode 3 2 5 Pushing a LINE button once will sei
17. panel into either of these jacks they are in parallel using the six conductor cord provided You must use 6 wire modular cables for the console connection standard 4 wire cables will not work The cables that come with the Switch Consoles are labeled indicating which end should be connected to the Switch Console and which 15 connected to the ONE x Six See the Appendix of this manual for more information on how the modular cables are wired Each ONE x Six is capable of powering a total of two drop in console panels or desktop Switch Consoles Switch Console powering capacity is reduced to one if you use the earlier metal cased Switch Consoles instead of the one packaged with your ONE x Six An external Local Power Supply may be used if more panels and or consoles are desired Installation of the Local Power Supply is detailed in the Appendix of this manual The maximum cable length from the ONE x Six to the desktop control surfaces is 100 The Switch Console has local regulation so cable voltage drop will not affect illumination until the drop out point is reached The drop in console panels will work at a maximum distance of 25 owing to the greater voltage drop caused bv the power consumption of the incandescent lamps used in these panels If greater distances are required use a Local Power Supplv Installation of the Local Power Supply is detailed in the Appendix of this manual A 25 cable to connect the ONE x Six to a Switch Console co
18. socket 14 pin machined socket 18 pin machined socket 470 1 4 68KQ 1 4 W 39KQ 1 4 W 4 7Q x 7 DIP 10 x 10 SIP 10KQ x 6 SIP 100KQ x 10 SIP 1843 x 8 SIP ferrite bead 1N5339B 1N4148 1N4148 4 pos DIP switch Telos ONE x Six Rev C PARTS AND SCHEMATICS 67 Telos Switch Console ACTUATOR BOARD PARTS LIST Designation SW1 SW30 SW1 SW30 L2 L11 L2 L11 L13 L27 L13 L27 L28 L37 L38 L47 A J2 B J4 Description T 16D switch T 16 dust cover L424YTD 3mm LED 1 16 spacer L424YTD 3mm LED 1 16 spacer L 153SRDT retangular LED L 153SRDT retangular LED 28 pin header 6 pin header 55 6566 R 11C 7 pin header Telos Switch Console DTMF BOARD PARTS LIST Designation SW1 SW12 DTMF cap set 68 Description T 16R switch SwCaps 0 97 7 Designation SW1 SW2 SW3 SW12 SW13 SW14 SW15 SW24 SW25 SW 26 SW 27 SW28 SW29 SW30 Designation Telos ONE x Sx PARTS AND SCHEMATICS Description Sw Cap DROP Sw Cap HOLD Sw Cap replaceable legends Sw Cap DROP Sw Cap HOLD Sw Cap replacable legends Sw Cap BUSY ALL Sw Cap FLASH NEW Sw Cap REC MODE Sw Cap REC STOP Sw Cap DELAY DUMP Sw Cap NEXT Description 7 pin header 99V HOW XIS X 3NO 50 51 3 LT ES gt HOWSU HOWSH HONTH HONE HOW 119 2 229 15 525 1 2 27 LLE ZZE bic 22 ez HONO HOW 1 HOWE LI owei HOWL 1
19. station calls etc If calls need to be answered off air such as for a talk show screener a standard telephone set is used which plugs into the ONE x Six Studio lines from Teico to Switch Console s ONE x Six to screenerphone One or two Sirmmp e phone ports from PBX to ONE x Six allow PBX extensions on the air studio system Business lines from Telco Electronic PBX system To electronic PBX phone sets Behind the PBX Approach 81 Seeree te Studio and Business Lines A Telos ONE x Six Rev C INSTALLATION 7 Behind the PBX Approach 2 is to route all of the lines through the electronic system With this approach the trunks assigned for on air use can be programmed in the PBX as multiple appearances to ring on the analog ports the ONE x Six is using as well as on certain PBX phones programmed for these lines Once programmed correctly these lines can be answered by the PBX phone or the ONE x Six It may be possible to allow the PBX phones to have the lines ring to them only when call screening is necessarv on these phones Once screened the call can be transferred to the ONE x Six analog ports Use the auto answer function described below so the caller can get music on hold after being transferred to the on air system When call screening is not required the calls can be auto transferred to the air studio usually by programming a set busy feature key on the PBX phone
20. 0 millisecond interruption on anv active lines The FLASH NEW button can also be used for a dropping iine that is to hany up a line and get dial tone back on the selected line without going through the usual OFF and LINE button press sequence This button is usetul for dropping a line when a wrong number is dialed or if many calls are to be made on the same line This button can also be used to toggle on and off the Auto Answer feature When enabled the system automatically answers lines that ring into the ONE 5i after about two rings and places them on hold Once on hold the callers will hear your Program On Hold source RECORD MODE The record mode enables you to conveniently start a tape recorder To ready the RECORD MODE push the button once The LED above the button normally solid will blink The next time you press a LINE button the RECORD START output on the Control connector on the back of the ONE x Six will be pulsed To turn off the RECORD MODE press its button again RECORD STOP When this button is pushed the output on the back of the ONE x Six stops vour recording device This does not disable the RECORD MODE but rather can stop the tape deck if you choose not to record the call anvmore Your engineer mav have assigned another function to this button DELAY DUMP USER BUTTON This button activates your external profanity delav Your engineer may have assigned another function to this button SECTION 7
21. 1 DIPs 1 amp 2 on In this mode the buttons for line 10 have been reassigned as the user buttons one would find on the desktop Switch Console Refer to your interface manual for details on the user buttons Requires Dual 10 V1 1 software SWAPPED BANK OPERATION DIP 3 on Dip Switch 3 reassigns the buttons that were on the left side to the right side and visa versa This makes it easy for the unit to be say a horizontal panel or the Hybrid 1 bank on the single bank BE panels SWAPPED amp EXTENDED OPERATION 1 DIPs 1 amp 3 on Use this setting to access lines 11 20 on a horizontal turret panel or just to swap the banks to completely confuse vour operators SWAPPED amp EXTENDED OPERATION 2 DIPs 2 amp 3 on This is the setting would use to access lines 21 30 in a 30 line system on any horizontal panel SWAPPED USER BUTTON OPERATION 2 DIPs 1 2 amp 3 This setting is good tor those who have a BE panel and need to use the Next function with a Direct Interface Requires Dual 10 V1 1 software 1A2 V8 x OPERATION 1 DIP 4 on This setting must be used ONLY with a 10 or 20 line 142 Interface System that uses the 142 V8 x software When in this mode the dual 10 line panel becomes a single 20 line panel Reter to the V8 x addendum for specific details on this special 20 line approach SWAPPED 1A2 V8 x OPERATION 2 DIPs 3 amp 4 on On
22. 14 2 3 Other Rear Panel Connections 15 231 Aux Phone 16 232 Second Hybrid Optional 16 2 3 8 Switch Consoles 18 2 3 4 Program On Hold Input 19 2 3 5 5 232 19 2 3 6 Remote 19 2 3 7 AC Receptacle 21 2 4 Internal User Option DIP Switches 21 2 5 Front Panel Gain Adjustments 23 2 5 1 Input Gain 23 252 Output Gain 24 2 6 Installing Switch Console Button Legends 3 0 OPERATION 27 3 1 Front Panel Controls and Indicators JN 3 1 1 Line Status LEDs 28 3 1 2 Program On Hold Level LED 28 3 1 5 Metering 28 3 1 4 Output Processing Override 29 3 1 5 Output Processing AGC 30 3 0 OPERATION Continued 3 1 6 Hybrid Status 30 3 1 7 Gain Controls 31 3 2 The Switch Console 31 3 2 1 General 31 3 2 2 Touch Tone Pad 32 3 2 3 Line Buttons and LED Indicators 32 3 2 4 Placing Callers on air 33 3 2 5 Screening Calls 34 3 2 6 Special Function Buttons 36 3 2 7 Changing Button Legends 37 3 3 Console Mounted Control Panels 37 RS 232 Serial Port 38 3 4 1 Port Characteristics 38 3 4 2 Data Protocol 38 3 5 Feedback Control 40 4 0 TROUBLESHOOTING 43 4 1 Philosophy 44 4 2 General Troubleshooting Information 44 4 3 Power Supply 46 5 0 APPENDIX 47 Hvbrid Specifications 49 Switch Console Modular Connector Pin Qut 50 RJ11C format tor Telos Switch Consoles 21 t3 Telos ABS Switch Console Options Dual 10 Panel Options 53 Warrantv and Application Caution Hybrid Specifications 47 6 0 SIMPLIFIED INSTRUCTIONS 55 Switch C
23. 3 has a universal AC input accepting an input range of 90 264 VAC continuous 47 440Hz Its outputs provides three separate voltages a 5V supply which powers all the digital circuits a 12V supply for the RS 232 and the Switch Consoles and a 12V supply for the V rail of the RS 232 The 12V rails also drive two linear voltage regulators which provide 5V for the audio circuitry A minimum load of 0 2A on the 5V rail is required to maintain proper operation of the other outputs MEASURING OUTPUTS WITH NO LOAD WILL YIELD MEANINGLESS RESULTS Here s a list of compliance standards for the Autec UPS65 Series FCC Class B compliance UL 1950 File No E133148 CSA 1402C Level 3 File No LR89164 VDE Approval to EN60950 46 Telos ONE x Six Rev C THEORY OF OPERATION SECTION 5 APPENDIX APPENDIX CONTENTS Hybrid Specifications ONE x Six Switch Console pin outs RJ11C format for Telos Switch Consoles Telos ABS Switch Console Options Dual 10 line Panel Options Warranty and Application Note HYBRID SPECIFICATIONS System True digital Second generation Texas Instruments TMS320C25 processor 8kHz sampling rate Internal digital input and output gain processing filtering Trans hybrid Loss gt 40dB with pink noise or voice as test input Test set up as specified in our Telephone Q amp A All dvnamic enhancement processing is switched off With the override and output expander functions switched in trans hybrid loss is enhance
24. 4 Indicates when Telos is transmitting usually not required REMOTE This is a female DB 9 connector which provides the user buttons control outputs All outputs are momentary open collector closures to ground These will require a weak pull up resistor to 5VDC Some equipment like our hybrids have pull ups built into their control inputs Check the device s manual to be sure The pin out ts detailed below Remote Pin Out Delav Dump User Output Not currently supported Hybrid 2 external Hybrid 2 external OFF External STOP when internal hybrid turned OFF Ground Record Start Record Stop User Output B External START when internal hvbrid turned ON Oo 109 Ul Ny Telos ONE x Six Rev INSTALLATION All outputs are momentary open collector closures to ground Each output can sink up to 250 mA For these outputs the maximum pull up voltage is 45V If these outputs are to drive inductive loads a back EMF diode is built in so none is required 5V DIG 5V DIG 4 1K 10K from J4 x _ 0 C 124 6 DE cdd 74HC74D TYPICAL TP1C6 259 OUTPUT DRIVING 5V RELAY DRIVING TTL INPUT The external stop and start pins 5 and 9 are controlled by the top row of LINE buttons on the Switch Console When a line is selected to be put on air the external start can be used to start or reset a timer or any other application vou wish When a line is dropped th
25. 4 lt B 4 gt O B X B 0 C Telos ONE x Six Complete Talk Show Telephone System 2 en 9 Bi eem Scu i E E 2H 3 SH 3 e e E cg 5 D H H H ON ON 3 M Mt emer i User s Manual Revision C September 1995 Telos Systems 2101 Superior Avenue Cleveland OH 44114 216 241 7225 FAX 216 241 4103 Copyright 1993 95 by TLS Corporation A personal note from Steve Church December 1 1993 At the NAB in 1985 I offered the first public demonstration of my Telos 10 the first broadcast audio device to use real time digital signal processing DSP The response was quite positive because the Telos 10 incorporated the first telephone hybrid that actually worked The Telos 10 was far from perfect You needed a 1A2 key system to connect the central office telephone lines A wide ribbon cable was used between the Switch Console and the main unit And I must confess 1 probably could have done a better job selecting the buttons for the Switch Console And those were among the most expensive switches I evaluated As Telos grew we replaced the Telos 10 with the widest assortment of equipment for telephone to broadcast interface The performance of our hybrids continued to improve and wit
26. IP IN FROM TELCO DEMARC LINE 2 OUT NE 2 our PBX TRUNK INPUT REPEAT FOR AS MANY LINES Ae 1 JUMPER CLIPS CAN BE REMOVED FOR TESTING SPLIT 66 BLOCK Telos ONE x Six Rev INSTALLATION 2 1 2 INTEGRATION WITH ELECTRONIC PHONE SYSTEMS Three approaches are described Each offers specific advantages and disadvantages A Using the ONE x Six behind the PBX In this manual we refer to anv phone system other than the ONE x Six as a PBX Private Branch Exchange This is generally the station office phone system whatever its configuration Most of the electronic PBXs have ports intended for standard single line phones as well as for the fancy feature phones Since these ports look like Central Office lines with ring voltage talk batterv and the like they can be connected as inputs to the ONE x Six just as a CO line would For instance this scheme allows the studio phones to access WATS lines make in station calls and take calls that come in through the switchboard The phone people refer to this concept as using the Kev the Telos behind the PBX Within this general concept there are three approaches to consider Behind the PBX Approach 1 is to segregate the studio lines to the ONE x Six onlv bypassing the electronic system altogether An extension or two off the electronic svstem would allow airing of calls received on the station s main switchboard local in
27. NE x Six Mark Bogner la Faima 3010 Subject Host Screen of Call Screen Manager PORT CHARACTERISTICS The port connector is a standard IBM AT stvle male DB 9 Cables mav be easily tabricated or be obtained from a well stocked computer store The phvsical protocol is as follows 8 bits 1 Stop Bit No Parity 1200 Baud P3 RS 232 Connector Pin Out 3 Transmit from Telos to computer 2 RX Receive trom computer to Telos GND Ground Indicates when Telos is transmitting usually not required DATA PROTOCOL Computer to Telos Commands All commands are ASCII characters so that anv terminal program such as Crosstalk for the PC or Red Ryder for the Mac mav be used to exercise the port Telos ONE x Six Rev C OPERATION Each command begins with a capital letter and is followed by a 2 digit line number XX where appropriate Line numbers begin with Line 1 00 OFF XX ON XX HOLD Xx SCRNED HOLD CONF XX LOCK XX TONE XX QUERY UXX Xternal Reset Xtemal Mode Monitor Don t Monitor Initialize 2 Turns line XX off Turns line XX on to the main bank Puts line XX on hold Puts line XX in screened hold mode Turns line XX on to the Aux Phone port Equivalent to switch console double press Dials tone XX to on air line 11 12 Causes Telos to return line status in format given below Virtual press of function button on console
28. R PURPOSE In no event will Telos Systems its employees agents or authorized dealers be liable for incidental or consequential damages or for loss damage or expense directly or indirectly arising from the use of any Product or the inability to use any Product either separately or in combination with other equipment or materials or from any other cause Telos products are to be used with registered protective interface devices which satisfy regulatory requirements in their country of use 54 Telos ONE x Six Rev APPENDIX SECTION 6 SIMPLIFIED INSTRUCTIONS THE SWITCH CONSOLE a us ri 1 1 as REC REC DE LA ALL NEW STOP DU MB TOUCH TONE PAD LINE A standard keypad is provided so that outgoing calls may be placed from the Switch Console To dial out through the external hybrid select an available line on one of the LINE buttons on the top row and dial If vou want to place a call on the auxiliarv phone and there is no second hvbrid connected pick up the handset select an available line on the bottom row of line buttons and dial using the dialer on the phone If a second external hvbrid is connected select an available line on one of the LINE buttons on the bottom row and dial BUTTONS AND LED INDICATORS Operation for line selection holding etc is verv similar to familiar kev phone sets The maximum number of lines is six The top row of LINE buttons corresponds to the internal hybrid The bottom row to t
29. This can get very expensive because you ll need two kinds of ports for each line not to mention the cost of having someone come and reprogram the PBX Reliability You now have two svstems which could screw up Blame and finger pointing could result in the event of a system failure Hybrid performance may worsen somewhat since you are throwing another impedance bump into the talk path The ONE x Six uses loop drop detection to release lines that have been on hold when the caller gets tired of waiting and hangs up Your analog ports must generate a loop drop if a held call hangs up Otherwise when the talent goes to that line dial tones or reorder tones will be there or worse yet the please hang up now message Behind the PBX Approach 3 an easv wav for both svstems to talk to each other is to get Centrex service from vour phone company Centrex allows vou to transfer lines to other Centrex lines using hook flash and 2 3 or 4 digit extension numbers This wav vou can keep on air lines and business lines separate but still be able to send calls from the air studio to the business PBX and send calls from the PBX to the air studio Call vour local phone representative for more details on Centrex B Looping through the ONE x Six This approach uses the ONE Sin s YE Bk outer pair on the CO line modular connectors to loop through to vour PBX Once connected to the PBX all lines can be shared between svstems lf a li
30. This is especially useful when the AUX PHONE port of the ONE x Six is used for a second hybrid A full discussion on how to set up a second hybrid is in Section 2 3 2 A The Telos ONE x Six has an Auto Answer function which can be enabled from a button on the Switch Console When the system is in the auto answer mode it will automatically seize lines that are ringing in after about two rings and place them on hold This may be of use if you choose a direct forwarding method of call screening See Section 2 4 for information on activating the Auto Answer feature Studio lines from Telco Electronic PBX system to Switch Console s Business lines ON E x Six from Telco to screenerphone All studio lines are directly forwarded or private lined to PBX extension ports which then appear on the ONE x Six To electronic PBX phone sets Behind the PBX Approach 2 Route all Lines Through Electronic System 8 Telos ONE x Six Rev INSTALLATION The disadvantages of this approach are Audio degradation may result Analog systems are often noisy or frequency response limited Often the main problem is that the data signals crosstalk into the audio path Most digital systems have poor audio quality verging on unacceptability for on air broadcast See our Telos Telephone Q amp A for a discussion of this problem Cost You need both input central office ports and output extension ports for each of the studio lines
31. V 4 Data Ready 2 SwCon XMT 5 GND 1 6 GND NOTES 1 Connections to Switch Consoles MUST use 6 conductor inverting cables 1 1 ere eH 1 6 6 7 2 Cables to DATA IN or from DATA THRU can be 4 conductor it necessary but must invert the signals as shown above 3 Maximum length from ONE x Six to Switch Console WITH Aux P S is 250 ft Max length WITHOUT Aux P S is 100 ft 4 Each Aux Power Supply can power up to two 2 Switch Consoles 5 6 pos RJ11 to Insulation displacement converter connectors available from AMP P N 553983 1 IBM equiv 8310575 Also available from Digikey P N A4004 ND These connectors are excellent to use when trying to connect the RJ11C format to your in house shielded pairs If possible give each data signal its own shield Shields should be tied together and run to station ground for best results Telos ONE x Six Rev APPENDIX 51 TELOS ABS SWITCH CONSOLE OPTIONS The microprocessor board for the Telos ABS Switch Console operates as a universal panel for 10 20 and 30 line svstems Specific operation is set up using a four position DIP switch located on the MPU board Here is a brief description of its modes of operation NORMAL OPERATION DIPs off This 15 the default setting for the units when they ship from the factory This setting emulates the old panel functions 10 lines available on hybrid 1 top row and hybrid 2 bottom row Most users will use this s
32. and independent active differential audio outputs each with the following characteristics Active balanced If an unbalanced output is required connect between ground and either of the hot pins Do not ground the unused hot pin Output level will varv from approximatelv 20dBm to 10dBm depending upon gain control adjustment caller level and whether or not the AGC is engaged Pin 1 is ground Pins 2 and 3 are the balanced signal outputs Note that the output level meter is before the gain control it displays actual phone level before processing Use the output trimmer on the front panel to adjust the level to your mixing board OUTPUT Caller onlv audio appears on this male XLR 14 Telos ONE x Six Rev INSTALLATION AUX MIX OUT The AUX MIX output is either a mix of the send and caller signals or an isolated second caller only output depending on the setting of the switch to the right of this male XLR Switch out mixed caller and send signal is present Switch in caller only audio is present The input is passed to the MIX output at unitv gain Note from the block diagram below that the pass through gain is not affected bv the input or output gain controls However since the output gain control does affect the caller level in the mixed output it can be used to adjust the balance between the send and caller signals 9 22 9 40 5 ERD 6 Selec HYBRID and PROCESSING i
33. arked IN and OUT These trimmers are used to set send audio signal going down the phone line to the caller and receive audio output of the hybrid i e caller audio levels respectively INPUT GAIN The trim pot marked IN adjusts the audio level that is being sent to the hvbrid s input XLR which should be a mix minus feed See Section 2 2 3 for a discussion of mix minus The unit comes from the factory with the trimmer fully clockwise that is all the wav up Follow these steps to adjust the IN trimmer EV Press the G R LEVEL button so it is in the OUT position press the IN OUT button so it is in the IN position This makes the LED meter read INPUT LEVEL Select MIC or LINE level range bv pressing the switch located to the right of the input on the rear panel Feed some audio at a normal level into the mix minus bus This can be a microphone a tone generator or a cart or CD plaving vour favorite tunes Look at the meter and begin turning the IN trimmer counterclockw ise with a small screwdriver until most of the green LEDs are lit and the red LED only comes on everv once in a while during peaks in the audio Adjusting this level is just like setting the level to a tape deck You wouldn t peg the meters on a tape deck would vou Telos ONE x Sx Rev INSTALLATION 23 24 IMPORTANT NOTE Increasing the send level beyond the 0 reading does NOT increase the level into the phone line The level of
34. callv a few dB hotter than most callers If vou can t get enough level out of the hvbrid press the button on the front panel marked AGC so it is in the IN position and readjust the trimmer Or if vour console tader has a gain adjust on its input increase gain there Repeat step 4 onlv this time call a friend and have him read the Gettvsburg Address or vour favorite poetrv while vou adjust the trimmer Trv this several times on different lines to ensure vou have good range with the big fader Once again don t peg the mixer meters Telos ONE x Six Rev C INSTALLATION 2 6 INSTALLING SWITCH CONSOLE BUTTON LEGENDS The LINE buttons are labeled by inserting a legend under a clear lens When changing the button legend place the entire button capon a flat surface and then remove the clear lens This will prevent damage to the button and the lens Avoid installing legends with the buttons installed in the Switch Console as the pressure required to for cap installation may damage the button mechanism Buttons already installed in the Switch Console are removed by careful lifting No special tool is required Gentle prying with vour fingernail or thin blade 15 all that is required to remove the clear lens Telos includes a sheet of common legends which may be cut and placed into the appropriate LINE button caps You can even make vour own legends quite easily Imprinted button caps are provided for the function buttons If vou have dedicated a fu
35. ce again this setting must be used ONLY with 1A2 Interface Systems using V8 x software Dip Switch 3 swaps the banks when using a turret panel or the single bank BE panels Mn Il mo um jo o io jo 1c a CM gt Telos ONE Sx Rev APPENDIX 5 WARRANTY and APPLICATION CAUTION This Warranty covers the Products which are defined as the various audio equipment parts software and accessories manufactured sold and or distributed by TLS Corporation d b a Telos Systems hereinafter Telos Systems With the exception of software only items the Products are warranted to be free from defects in material and workmanship for a period of one year from the date of receipt by the end user Software only items are warranted to be free from defects in material and workmanship for a period of 90 davs from the date of receipt the end user The terms and conditions of Telos Systems warranty in effect at the time of shipment shall apply In order to invoke this Warranty notice of a warranty claim must be received by Telos Systems within the above stated warranty period and warranty coverage must be authorized by Telos Systems Notice of a warranty claim may be made orally telephoning Telos Systems at 1 216 241 7225 or in writing sent by facsimile to 1 216 241 4103 If Telos Systems authorizes the performance of warranty service a
36. d the processing trv to set the Telos ONE x Six Rev OPERATION mic processing gate function so that the gain is not sucked up during pauses You might also try reducing the input level to the hybrid The send level will still be OK since the AGC has considerable range but the system won t have as much room to reach for gain In some difficult cases it may be desirable to disengage the hybrid output AGC function since it could reduce feedback margin in the same wav input AGC does 3 Irv repositioning the mics and or speaker Of course it also helps to use mics and speakers that are directional 4 Add equalization to the monitor path Acoustic resonances usually cause pronounced peaks in the feedback response of a sound system Since the largest peaks generally occur at just a few frequencies reducing system gain at these frequencies with a graphic or notch EQ helps tremendously 5 If necessary soften acoustic reflections in your studio by adding curtains or wall treatment The foregoing is intended to help in those situations where you must have an open speaker Whenever possible it is best to use headphones to hear callers When you have an open speaker the on air phone audio has both a direct and an acoustic path from the speaker to the announce mic s Depending on the relative levels phone audio quality may suffer Generally the best scheme is to have the phone monitor speaker mute when the mic is turned o
37. d to gt 50dB Send Level to Phone Line 10dBm average level Maintained by internal digital AGC Frequency Response caller to output 200 3400Hz 1dB Noise and Distortion caller to output Distortion Typical 0 4 THD N measured 1kHz at any level from 484 to 8dBm Signal to Noise gt 72dB Referred to 0dBm phone level Send Audio Input XLR female connector Active balanced Accommodates 24dBm to 12dBm levels in LINE mode 68dBm to 35dBm in MIC mode Front panel screwdriver level adjust Caller Audio Output XLR male connector Active differential Output levels to 1418 depending upon caller telephone line level and adjustment of tront panel level adjust Will drive 6000 Aux Mix Output XLR male connector Active ditterential In AL X mode this output is an isolated second output In MIX mode this is a combined send and caller output INPUT to MIX Output Unity gain lt 0 04 THD 12dBm clip point ONE x Six Switch Console Modular Connector Pin Out RJ11 123456 1 9VDC power to Switch Console 2 RCV from Switch Console to ONE x Six 3 XMIT to Switch Console from ONE x Six 4 Readv Busy low signifies Switch Console sending 5 Ground 6 Ground 50 Telos ONE x Six Rev C APPENDIX RJ11C FORMAT FOR TELOS SWITCH CONSOLES TYPICAL INPUT TERMINAL TYPICAL OUTPUT TERMINAL 6 GND TO SW CON 1 VDC 5GND 2 RCV 4 Data Ready 1 J LA 1 J LA 3 Int c XMT 3SwCon RC
38. e disabled as well as the user buttons that can affect the top row NEXT amp FLASH This option allows access to the 2 hybrid bottom row for lines 21 30 E 1A2 V8 x DISABLE TOP ROW DIPs 1 3 on In this mode the buttons on the top row are disabled as well as the user buttons that can affect the top row NEXT amp FLASH This option allows access to lines 11 20 when used with the 1 A2 V8 x software CO CO NORMAL DISABLE BOTTOM ROW DIP 4 on In this mode the buttons on the bottom row are disabled This may be useful if hvbrid 2 is assigned to another studio This option allows access to the 1 hvbrid top row for lines 1 10 NU jan IN EXTENDED DISABLE BOTTOM ROW DIPs 1 amp 4 on In this mode the buttons on the bottom row are disabled This option allows access to the 1 hvbrid top row for lines 11 20 EXTENDED DISABLE BOTTOM ROW DIPs 2 amp 4 on In this mode the buttons on the bottom row are disabled This option allows access to the 1 la brid top row tor lines 21 30 1A2 V8 x DISABLE BOTTOM ROW DIPs 1 2 amp 4 on In this mode the buttons on the bottomrow are disabled This option allows access to lines 1 10 when used with the 1A2 V amp x software NEU X Cem DISPLAY ONLY DIPs 3 amp 4 on This setting disables ALL the buttons including the user buttons This can be usef
39. e stop function allows the timer to be stopped The Hybrid 2 extemal ON and OFF pins 3 and 4 are controlled by the bottom row of LINE buttons on the Switch Console and are used when a second external hvbrid is installed in the Aux Phone port When a line is selected to be put on the air Hybrid 2 will turn ON When a line is dropped or held Hvbrid 2 will tum OFF Dip Switch 46 2 must be turned on to activate this function See Section 2 4 The diagram below shows how to connect the remote connector of the ONE x Six to either the Telos ONE or Telos 100 Delta digital hvbrid telephone interfaces 5 5 Hybrid 2 DBa 2 Telos 100 DELTA or Telos ONE REMOTE PINOUTS for DBS REMOTE 20 Telos ONE x Six Rev C INSTALLATION 2 3 7 AC RECEPTACLE 2 4 The AC receptacle connects AC to the unit with an industry standard IEC connector and provides a power on off switch The power supply inside the ONE x Six has a universal AC input accepting an input range of 90 264VAC 50 60Hz A fuse is located on the power supply INTERNAL DIP SWITCHES The ONE x Six has two 2 position DIP switches and one 4 position DIP switch to enable options These switches are shipped from the factory in the OPEN position for default operation The software incorporates the following functions Dip 5 1 Locked on Conferencing OPEN The factory setting for this DIP Switch is OPEN so that the locked on conferencing featu
40. etting exclusively moy m EL EXTENDED OPERATION 1 DIP 1 on This setting allows the panel to access lines 11 20 in a 20 line system Hold and Off functions for both banks are duplicated for ease of operation EXTENDED OPERATION 2 DIP 2 on This setting allows the panel to access lines 21 30 in a 30 line system Once again Hold and Off functions for both banks are duplicated for ease of operation Cm z NC 1A2 V8 x OPERATION 1 DIPs 1 amp 2 on This setting must be used ONLY with a 10 or 20 line 1A2 Interface System that uses the 1A2 V8 x software When in this mode the Switch Console becomes a single 20 line panel Refer to the V8 x addendum for specific details on this special 20 line approach NORMAL DISABLE TOP ROW DIP 3 on In this mode the buttons on the top row are disabled as well as the user buttons that can affect the top row NEXT amp FLASH This may be useful if hybrid 1 is assigned to another studio This option allows access to the 2 hybrid bottom row for lines 1 10 EXTENDED DISABLE TOP ROW DIPs 1 amp 3 on In this mode the buttons on the top row are disabled as well as the user buttons that can affect the top row NEXT amp FLASH This option allows access to the 42 hybrid bottom row for lines 11 20 LN NL LN LN HL EXTENDED DISABLE TOP ROW DIPs 2 amp 3 on In this mode the buttons on the top row ar
41. h the Direct Interface Module we allowed direct connection to incoming phone lines We grew to a real company and as we added engineering resources offered you more advanced technologies and enhanced operational features There remained however a nostalgia for the Telos 10 Its users forgot that it was expensive and limited in function but remembered that it came packaged as a complete system Additionally we heard from many smaller installations who encouraged us to create a complete talk show svstem at a more moderate price The Telos ONE x Six is our response to your requests The digital hybrid performance is spectacular the unit connects to six central office lines directly and the main unit comes packed with a Switch Console in the same carton The ONE x Six is easy to install and maintains all of the features of our modular systems And best of all we offer the ONE x Six to vou at a price that makes it extremely affordable We trust vou will like it Keep on keeping the GM happv Steve Church President Telos Svstems User s Manual Revision C September 1995 ONE x Six 1 0 INTRODUCTION 1 1 1 System Overview 2 1 2 Digital Hybrid Overview 3 1 2 1 Special Hybrid Features 4 2 0 INSTALLATION 5 2 1 Connection to Telco Lines 6 2 1 1 The Central Office Connection 6 2 1 2 Integration with Electronic Phone Systems 2 2 Audio Connections 12 221 Mix Minus 12 2 2 2 Input Audio Connection 14 2 2 3 Output Connections
42. he connects lines either to the screener phone or if connected an external hvbrid Either or both rows can be disabled via a DIP switch inside the console Refer to the Appendix for details There are two LEDs above each line selection button to indicate status of each of the phone lines and hybrids vou have connected to the ONE x Six LINE Buttons Each row of LINE buttons has a DROP button a HOLD button and ten LINE selection buttons The last four buttons on each row are inactive The DROP and HOLD buttons affect only the row of LINE buttons on which they are located Red Bar LED Indicator Above each line selection button is a bar LED to indicate line status LINE status can be affected by pushing a LINE button on the Switch Console a connected computer or an external phone system connected to the ONE x Six The bar LED will therefore alwavs reflect the true LINE status Information is provided bv both the flash rate of an LED and its brightness Red Bar LED Status LINE Status Slow Blink Line Is Busied Out Medium Blink Line Is Ringing n Very Fast Blink Line Is On Hold Very Fast Bright Blink Line Is On Screened Hold On Continuouslv Line Is on air or on screener phone Off Continuously Line Is On Hook And Inactive Yellow Round LED Indicator Above each line selection button is a round LED to indicate hvbrid status Yellow Round LED Status Hyb Status on Indicated Line Flashing on air standard mode On Continuously on a
43. he external hvbrid s on off control signals Telos ONE x Six Rev INSTALLATION however once a call is established on the external hybrid you won t be able to screen calls Alternately the second hybrid s console fader can be put into cue mode for screening as long as the input to the hybrid is switched too See Section 2 1 2 for a discussion regarding Behind the PBX Approach 2 This may offer some insight on system configuration B Loop through a single ONE X Six line The second hybrid can be looped through one of the lines connected to the ONE x Six Consider the second hybrid as an external phone system and install as instructed in section 2 1 1 This allows vou to use all of your phone lines normally when only putting one caller on the air When you want to conference in a special guest dial out on the line with the second hybrid and then instead of putting the guest on the air from the ONE x Six use the second hybrid Take care not to select the line a second time from the ONE x Six This method retains your screening capabilities but you cannot turn the second hybrid on and off from the ONE x Six without giving up the functions of some of the special function buttons on the Switch Console We recommend renaming the DELAY DUMP and RECORD STOP buttons Guest On and Guest Off and use the appropriate pins on the REMOTE connector See sections 2 3 6 and 3 2 6 C Stand alone second line Use an additional phone line se
44. his to happen when certain control combinations are user selected This is the first place to look when strange or erratic performance is experienced The ONE x Six s front panel input meter should give vou an immediate answer A Good Idea Here s a neat scheme for stations which do a lot of taping of calls for later plav on the air The mix minus goes into the left channel of the studio tape machine while the right channel input gets the hvbrid output The result is a two track tape with the announcer and caller audio separated When vou plav back on the air vou set the console input to mono and adjust the relative balance as desired You also have a tape with caller and announcer audio separated which makes it easier to do production tor contest squeals etc If vou only have mono tape decks use the second output of the hvbrid in the MIX position See Section 2 2 3 on the second output Telos ONE x Six Rev INSTALLATION 13 2 2 2 INPUT AUDIO CONNECTION The input has the following characteristics Active balanced Switch out LINE position 24 to 12dBv level Switch in MIC position 68 to 35dBv level Approximately 2KQ impedance Pin 1 is ground and pins 2 amp 3 are the balanced audio inputs SWITCH CONSOLES 5252 CO LINES IN Unbalanced sources may be used by connecting pins 1 amp 2 to the source ground while the signal hot is connected to pin 3 2 2 3 OUTPUT CONNECTIONS There are two separate
45. id performance The Telos ONE x Six uses integrated circuits called CODECs for the analog to digital and digital to analog conversions These ICs are better than the usual telephone CODECs because they can use oversampling and digital filtering techniques for the anti aliasing and reconstruction filters rather than the usual switched capacitor filter approach Thus noise and distortion are quite good Telos ONE x Sx Rev C INTRODUCTION SECTION 2 INSTALLATION 2 1 CONNECTION TO TELCO LINES 2 1 1 THE CENTRAL OFFICE CONNECTION Telco lines are brought into the ONE x Six with standard RJ11C cables Plug the Telco lines directlv into the appropriate modular receptacles on the rear panel The red green inner pins of the modular receptacles make the telco connection while the yellow black outer pair is used as a loop through for connection to another phone system or PBX as described below Therefore you should be sure that no unintended connections are made to the vellow black pair If vour phone installer provides vour individual lines on RJ11C jacks vou should have no problem simply running the cables between those jacks and the back of the ONE x Six Note that the ONE x Six should be used with loop start phone lines the standard most common sort HN eee OSO teti Ss LINE TIN FROM TELCO DEMARC LINE 1 TIP OUT BING BUT LO PBX TRUNKINPUT UNE T
46. ides extra contact closures for the user assignable buttons on the Switch Console and an IBM AT style RS 232 serial port for computer control with software such as Telos Call Screen Manager The ONE x Six also has a Program On Hold input with AGC A standard single line telephone set user provided is used for call screening If full screening functions are not required a second external Telos hvbrid mav be connected to enhance conferencing callers The ONE x Six has been designed with careful attention to audio performance in order to insure that the caller audio arrives at sooo cinipment with negligible degradation Because the audio processing tunction aro performed in the digital domain and the telephone switching system is sottware driven the hardware design of the Telos ONE 1 Six is quite simple Telos ONE x Sx Rev INTRODUCTION 1 2 DIGITAL HYBRID OVERVIEW The Telos ONE x Six uses the same digital hybrid found in the Telos ONE digital hybrid telephone interface The hybrid embodies a state of the art approach to interfacing telephone lines for broadcast teleconferencing distance learning and other uses The very fast and precise digital automatic nulling allows smooth natural simultaneous conversation without the usual speakerphone up cutting effect or the audio distortion and feedback problems often experienced with analog hvbrid type interface devices The purpose of the digital telephone hvbrid is to deliver to the conso
47. includes a sheet of common legends which may be cut and placed into the appropriate LINE button caps You may create your own legends quite easily Imprinted button caps are provided for the function buttons If you have dedicated a function for which an imprinted button cap is not provided you may use one of the extra LINE button caps provided with your own legend inserted LINE buttons and function buttons with the exception of the NEXT button have interchangeable caps CONSOLE MOUNTED CONTROL PANELS Telos provides console and turret mounted panels for a variety of models from several major broadcast manufacturers such as Pacific Recorders amp Engineering These panels operate in a manner very similar to the desktop Switch Console For more details on their operation and installation refer to the manual included with the unit you purchased Telos ONE x Sx Rev C OPERATION 37 38 3 4 3 4 1 3 4 2 RS 232 SERIAL PORT The RS 232 serial port can be used for computer control of the telephone system Full status and control are available via this port The communication protocol is very simple and should be accommodated easily with any computer software system Please let us know what you come up with Telos Call Screen Manager is an elegant software package implementing the ONE x Six s line status information from its RS 232 port Other third party vendors also have software designed specifically for use with the O
48. installed select vour first caller from the top row of the Switch Console and the second caller from the bottom row A DIP switch inside the ONE x Six must be set See Section 2 4 tor details SCREENING CALLERS lf a single line desk phone is connected to the ALN PER port the bottom row on the console must be used to select lines tor screening Ihe buttons on the bottom row function exactly like the top row s except that when the HOLD button is pressed the line will go to SCREENED HOLD The blink rate is the same as regular hold but brighter When lines are in screened hold thev go into the NEXT button s cue See section 3 2 6 If DIP 6 2 is on the HOLD button will put the line in regular hold and the line will not go into the NEXT button cue See section 2 4 Telos ONE x Six Rev C OPERATION 3 2 6 SPECIAL FUNCTION BUTTONS There are six special function buttons below the line selection buttons From left to right these function buttons are NEXT Puts the line that has been in SCREENED HOLD the longest to air through the internal hybrid If no lines are in SCREENED HOLD it selects the line that has been ringing in the longest This function is frequently used for contests when the system is in the auto answer mode or if your week ender jocks need a simple wav to use the system If no calls are in SCREENED HOLD or RINGing in when the next button is pressed the line that is on air and not locked in will release BUSY ALL
49. io The purpose of this function is twofold e Aesthetic Preference air talents prefer the effect of having some control over the caller when they speak e Improvement of dynamic trans hvbrid Loss Acoustic Ducking This function operates in the send audio path The acoustic ducker works bv reducing the send announcer signal dynamically when the caller speaks The acoustic ducker is used to prevent feedback when open speakers are being used to monitor callers Also since an open monitor causes callers to hear themselves fed back via the acoustic path from the speaker to the announce mic this function has the additional benetit of allowing the caller to perceive a more natural sounding conversation The time constant is verv fast so the effect of the acoustic ducking usually is not noticed bv the caller The only disadvantage might be that the announcer be less able to break in ona caller who is insisting upon shouting on Telos ONE x Six Rev C OPERATION 29 30 3 1 5 OUTPUT PROCESSING AGC 3 1 6 The telephone dynamic gain processing is enabled with this pushbutton The output processing includes both an automatic gain control and a smart noise gate downward expander function Compression Region Relative Output Level dB Expansion Region 70 80 50 40 30 20 10 0 Phone Line Level dBm As can be seen in the graph which shows the relationship between telco line level and
50. ir conference mode Off Not on air Placing Callers on air in Standard Mode To place a caller on air push the desired LINE button on the top row The round LED will flash and the bar LED will be lit solid The line may be dropped or placed on hold using the DROP and HOLD buttons on the row you have selected If you select another line on the same row the line selected earlier will be dropped unless the line is placed in conference mode Placing Callers on air in Conference Mode Pushing a LINE button once places it on air Pressing the LINE button a second time will place that line in the conference mode The DROP and HOLD buttons will have no effect on a line in conference mode If another line is selected on the same row the line in the conference mode will remain on the air When the LINE button is selected a third time the LINE reverts to the standard mode Tips for Conferencing If you want to keep a caller on air and add more callers put the original caller in conference mode to avoid accidentally hanging up on him her The system allows you to have more than one caller on a single hybrid To accomplish this place a caller in the conference mode and then select one or more callers from the same row of LINE buttons on the Switch Console This is called hard mash conferencing When performing this button mashing vour callers may not hear each other very well If vou have a second external hybrid installed select
51. isy tone but none of this tone is heard on the air since the output is muted during this time This has the incidental benefit of removing the line switching clunk Adaption to the telephone line characteristics continues as the conversation proceeds using voice as the driving signal Telos ONE x Sx Rev C INTRODUCTION 3 1 2 1 SPECIAL HYBRID FEATURES The Telos ONE x Six incorporates sophisticated audio processing in the digital domain for gain control and filtering A digital high pass filter is used to reduce hum and other low frequency interference High frequency noise above the telephone frequency range is also attenuated Smart digital automatic gain control smooths input and output levels A noise gate downward expander is provided on the receive path to reduce phone line noise during caller pauses A switchable override function is provided to allow ducking of the caller while the announcer is speaking The override function includes an acoustic ducker which dynamically reduces send audio when caller audio is present in order to reduce feedback and aid natural conversation A unique feedback reduction function uses pitch shifting to prevent feedback buildup The input send audio is shifted downward in frequency by 4 Hz Front panel metering is provided for input level output level and gain reduction The process of analog to digital and digital to analog conversion is critical to audio quality and hvbr
52. l This is done so that the level may be adjusted to accommodate the equipment downstream of the hvbrid without affecting the Telos meter level Note that when the AGC is switched out the meter reads the telco line level and thus mav be used to determine if there is a phone line level problem The meter s 0 indication 28 Telos ONE x Six Rev OPERATION 3 1 4 corresponds to a phone line level of approximately 15dBm When viewing input gain reduction the meter will only have one or two LEDs lit As the meter moves to the left it indicates input gain reduction when it moves to the right it shows input gain expansion Input AGC is always active The output gain reduction meter is only active when the AGC button is pressed in since this button turns the caller AGC on and off Its display functions just like the input gain reduction meter OUTPUT PROCESSING OVERRIDE This pushbutton engages two independent functions the caller ducking and the acoustic ducking function In most broadcast applications you will find that engaging the override function results in better overall performance Caller Ducking This function operates in the caller audio path When active there is approximately 6dB of ducking applied to the caller audio when the announcer speaks However very little change in caller level will be noticed due to the very high speed operation of the duck function and the masking provided by the presence of the send aud
53. le pure caller audio with as little of the send announcer audio as possible mixed in Until digital signal processing techniques were applied to the telephone interface problem there were two choices Switching Ihe send and receive paths were separated by having only one talk direction active at a time Common speakerphones use this approach The disadvantage is that natural conversation is impossible since the caller is cut off when the announcer talks and vice versa Analog hybrids These were on most phone lines very poor at removing the send signal from the caller s audio This meant that the announcer s voice would become distorted as the phone audio was added to the mix Telos hvbrids use digital techniques to perform the hvbrid function i e the subtraction of the send audio from the receive audio The input and caller audio signals are converted from analog to digital Then they are manipulated in the digital domain to verv effectively remove the announcer audio from the caller output while maintaining natural simultaneous tull duplex conversation Finally the signals are returned to analog The digital approach assures consistently good trans hvbrid loss regardless of varving phone line impedance The hvbrid performs its functions automatically When a call is initially established a brief mute adapt period provides an opportunity for the svstem to set up to the line before the call goes on the air The aller hears a no
54. mes packaged with the unit Cables of other lengths can be made from components available from telephone suppliers If you are making your own cable be certain the cables two plug tabs are on the same side of the cable as suo cu cn the diagram in the Appendix Note that this causes a reversal of the piso o oco ound fo ena The Section 3 2 has details on operation ot the Switch insole PROGRAM QN MOLO 18 Telos ONE x Six Rev C INSTALLATION 2 3 4 2 3 5 2 3 6 PROGRAM ON HOLD INPUT This is a female XLR connector for your music or program to be fed to callers that are on hold It is an active balanced 10KQ input that will accept program levels from 20dBm to 4dBm An AGC circuit maintains consistent levels to callers on hold for input level within this range The front panel Program On Hold Level LED indicates the presence of input There is no gain control since the AGC has a verv wide range to accommodate whatever level vou might have RS 232 Using a male DB 9 this is the standard AT stvle RS 232 serial port Telos Call Screen Manager software designed for producer to talent communications utilizes this port Section 3 4 of this manual covers RS 232 application and has details on the pin out data protocol etc A null modem cable works fine to connect the ONE x Six to your PC P3 RS 232 Connector Pin Out 2 RX Receive from computer to Telos 3 TX Transmit from Telos to computer 5 GND Ground
55. n If vou have the announce mics active to the phone system input even when the mic channel is switched off the svstem can still be used like a speakerphone when taking calls off the air When the call is to be used on air the announce mike is on so the speaker is muted Telos ONE x Six Rev C OPERATION 41 This page intentionally left blank SECTION 4 TROUBLESHOOTING 44 4 1 PHILOSOPHY In the past few years the nature of broadcast engineering has changed considerably At many stations the engineering staff has been reduced in size and new responsibilities have been added At the same time equipment has gotten more complicated and specialized Thus many practitioners of the broadcast electronic arts are forced to become systems engineers emphasizing equipment application rather than component level troubleshooting This is probably a positive development since it really would be impossible for a station engineer to fully understand the internal nuances of all the wonderful new high tech stuff that is now available to improve station operations Also as equipment becomes more sophisticated and specialized stocking spare parts for everv eventualitv has become difficult Thus we at Telos don t really expect that much component level troubleshooting will occur So to support you when you need help we keep spare units available for fast overnight shipping In most cases we will swap boards with you at no cost We do n
56. n how to set the send level to the hybrid There are a number of wavs to create a mix minus feed Simple Mix Minus For the simplest installation vou can just take the patch send or preamp output from the mic channel to feed the hybrid This works well but doesn t have much flexibilitv Another approach which allows more control is to use an outboard mixer to combine sources as desired All of the desired sources are paralleled into the on air board and the mixer and the mixer s output feeds the hvbrid Sophisticated Mix Minus Most modern broadcast consoles have provisions for mix minus The best allow selective feeds to the telephone svstem This is useful since vou sometimes want only one mic feeding the phone sometimes vou want three or four mics during the morning show for instance and sometimes vou want to feed cart machines when callers need to hear and react to contest effects etc The diagram that follows illustrates in simplified form a portion of a broadcast console with a mix minus bus Telos ONE x Six Rev C INSTALLATION E b y MIX MINUS BUS LINE CHANNELS 5 PROGRAM OUT PHONE CHANNEL 2 PROGRAM BUS ONE x Six Output Input Simplified mix minus scheme While on the subject of consoles and mix minus we ll digress here for a moment Many hybrid installation problems are caused by an inadvertent signal path which creates a loop from the hvbrid s output to its own input Some console designs allow t
57. nction for which an imprinted button cap is not provided you use one of the extra LINE button caps provided with your own legend inserted LINE buttons and function buttons with the exception of the NEXT button have interchangeable caps Telos ONE x Six Rev INSTALLATION 25 This page intentionally left blank SECTION 3 OPERATION 3 1 FRONT PANEL CONTROLS AND INDICATORS PROG RAM ON HO LD METERING GR LEVEL ecco NH E aa 34 2 om eve our Mb os c 3 1 1 LINE STATUS LEDS When a telephone line is in use the front panel LED indicator corresponding to that line will illuminate and blink different cadences to indicate that line s status These cadences differ from those of the Switch Console Very Slow Blink Line is Busied Out Slow Blink Line is Ringing In Very Fast Blink Line is On Hold Very Fast Double Blink Line is On Screened Hold Medium Blink Line is Off Hook but not On Air On Continuously Line is On Air Off Continuously Line is On Hook And Inactive 3 1 2 PROGRAM ON HOLD LEVEL LED This indicator will illuminate when audio is present at the Program On Hold input 3 1 8 METERING The meter mode pushbuttons select the desired function Input level Input gain reduction Output level Output gain reduction The input level metering is after the input gain control and displavs vour mix minus level to the hvbrid The output level meter is placed betore the output gain contro
58. nd if Telos Systems will be performing the warranty service the defective Product must be delivered shipping prepaid to Telos Systems 2101 Superior Avenue Cleveland Ohio 44114 USA If Telos Systems authorizes the performance of warranty service and if it authorizes another entity to perform that warranty service the Product must be delivered shipping prepaid to that entity whose address will be provided by Telos Systems Telos Systems or its designee at its option will either repair or replace the Product and such action shall be the full extent of Telos Systems obligation and buyer s sole remedy under this Warranty After the Product is repaired or replaced Telos Systems or its designee will return it to the party that sent the Product and Telos Systems will pay for the cost of shipping Telos Systems will have no responsibility under this Warranty for Products subject to Acts of God including without limitation lightning improper installation or misuse including without limitation the failure to use telephone and power line surge protection devices accident neglect or damage Telos Systems dealers are not authorized to assume for Telos Systems additional obligations or liabilities in connection with the dealers sale of the Products EXCEPT FOR THE ABOVE STATED WARRANTY TELOS SYSTEMS MAKES NO WARRANTIES EXPRESS OR IMPLIED INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULA
59. ne is seized on the PBX the ONE Six detects loop current and will light the appropriate button on the Switch Console The ONE x Six cannot access any line that has been seized the PBX first See Section 2 4 on how to disable this option Anv line seized bv the ONE x Six will disconnect the tip ring loop through pair awav trom the PBX so that on air calls Telos ONE x Six Rev INSTALLATION 9 cannot be disturbed by other phone users The ONE x Six knows when a line is off hook on the PBX because each line has current sensing circuitry Thus the bar LED line status indicator on the Switch Console will be illuminated continuously indicating a simple off hook If the PBX puts a line on hold the ONE x Six will still keep the bar LED line status indicator illuminated continuously since it can t differentiate electrically between talking and being on hold The talk and hold circuits both draw loop current Once again the ONE x Six cannot access any line that has been seized by the PBX first See Section 2 4 on how to disable this option Use a 66 block and punch down the Yl Gn Rd Bk wires for each line to make interconnection easy Refer to the diagrams on the next page for details 10 Telos ONE x Six Rev C INSTALLATION Studio lines to Switch Console s from Telco ONE x Six to screenerphone LOOP THRU ON YL BK PAIR TO PBX Electronic PBX system Business lines from Telco Looping CO lines
60. ocessors XLR As with most modern equipment the Telos ONE x Six is based upon microprocessor control Please do not attempt to remove the processor from its socket without the proper removal tool as thts may damage the socket and the MPU itself Use PLCC extraction tool from Burndy Cat No QILEXT 1 or equivalent Connectors The XLR connectors have retaining screws which have to be turned in order to be released Do this as illustrated below XLR CONNECTOR RELEASE Insert a small screwdriver into doles in the connectors shown at right Tumthe screwdriver Release about one eighth of a turn counter clockwise to release the connectors A small s crewdriver Latches such as the Xcelite R3322 or R3324y need FEMALE XLR to be filed down some to fit the s lots Remember to retighten the XLR latc hes when replacing the Telos ONE PCB Thiswill ensure correct support for the XLR connectors on the PCB MALE XLR CAUTION The installation and servicing instructions in this manual are for use by qualified personnel only To avoid electric shock do not perform any ser vicing other than that contained in the Operating Instructions unless you are qualified to do so Refer all servicing to qualified service personnel Telos ONE x Six Rev THEORY OF OPERATION 45 4 3 POWER SUPPLY The power supply inside the ONE x Six is manufactured by Autec Power Systems of Simi Valley CA This 30W switching supply Model No UPS30 400
61. ocketed not socketed not socketed U12 U13 U14 U15 not socketed not socketed U18 U19 U20 U21 not socketed U22 not socketed not socketed U25 U26 1 28 129 Lon E U32 UM not socketed not socketed 101 601 IS Description 68 pin PLCC socket 24 pin DIP machined socket 24 pin DIP machined socket 28 pin DIP machined socket 28 pin DIP machined socket 16 pin DIP machined socket 8 pin DIP machined socket 68 pin PLCC socket 40 pin DIP machined socket 40 pin DIP machined socket 28 pin DIP machined socket 28 pin DIP machined socket 14 pin DIP machined socket 14 pin DIP machined socket 14 pin DIP machined socket 8 pin DIP machined socket not socketed 20 pin DI machined socket 20 pin DIP machined socket 20 pin DIP machined socket l6 pin DIP machined socket 20 pin DIP machined socket 8 pin DIP machined socket 20 pin DIP machined socket Telos ONE x Six Rev PARTS AND SCHEMATICS 63 Designation Rl R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R18 R19 R20 R22 R23 R24 R25 R26 R27 R28 53 C9 t2 0 NANDA ZX y a da C A Ga gt O 20 M R38 R39 R40 R41 64 Description 3 3KQ 1 15KQ 10KQ 1KQ 5620 156 4 99KQ 1 10KQ 10 1002 33 2KQ 1 10KQ 10KQ 1KQ 1 1KQ 1 1KQ 1 1KQ 1 100KQ 1 100KQ 1 1KQ 2 43KQ 10KQ 49 90 196 49 9Q 1 10KQ 56 2KQ 1 1KQ
62. ons are pressed and no lines are active on the hybrid i e not in conference mode To turn off the RECORD MODE press its button again HECORD STOP When this button is pushed the RECORD STOP output on the Control connector on the back of the ONE x Six will be pulsed See Section 2 2 This does not disable the RECORD MODE but rather can stop the tape deck if vou choose not to record the call anvmore This output can be used to stop a recording device or for anv other desired function like turning off a single line external hvbrid starting a dedicated station LD cart machine and so forth DELAY DUMP USER BUTTON This button provides a pulse closure to ground on the DELAY DUMP USER output of the Control connector on the back of the ONE x Six See Section 2 2 This may be used to control a delay system or for any other desired function like turning on a single line external hvbrid starting a dedicated station LD cart machine etc Telos ONE x Six Rev C OPERATION 3 2 7 CHANGING BUTTON LEGENDS 3 3 The LINE buttons are labeled by inserting a legend under a clear lens When changing the button legend remove the entire button cap place the cap on a flat surface and then remove the clear lens This will prevent damage to the button and the lens Buttons are removed by careful lifting No special tool is required Gentle prying with your fingernail or thin blade is all that is required to remove the clear lens Telos
63. onsole Operating Instructions ale 7 0 PARTS LISTS AND SCHEMATICS 61 Parts Lists and Schematics Contents 62 This page intentionally left blank SECTION 1 INTRODUCTION 1 1 SYSTEM OVERVIEW The ONE x Six is a complete six line on air phone system designed for use in broadcast teleconferencing and other applications The ONE x Six incorporates a Telos ONE digital hybrid telephone interface and a six line switching system in a single height 19 rack mount unit For line selection the unit comes packaged with one desktop Switch Console The ONE x Six connects to standard dial up phone lines from the telco central office using industry standard RJ11C connectors The ONE x Six communicates with the Switch Console or optional console mounted control surfaces bv sending and receiving serial data over a skinny wire data link This serial link uses a modular phone type cable The Switch Console is powered via the modular cable as well The ONE x Six will switch up to six lines and can support two Switch Consoles directly More switch consoles can be added by using external power supplies The ONE x Six routes phone lines to its internal hybrid Audio input and output are connected via XLRs The balanced input can be mic or line level Two balanced outputs are provided one output has caller only audio the second output may be switched for either a second caller only output or a mix of the input and caller signals The ONE x Six prov
64. ot charge for most repairs However despite the comments above we do provide full schematics and component level troubleshooting information in case you have the need or desire to tackle a repair or modification yourself Another reason we provide the information is to satisfv your curiosity If vou are like us you probably just have to know what s happenin inside that fancy box 4 2 GENERAL TROUBLESHOOTING INFORMATION Desoldering While we socket the ICs that have the greatest potential for failure manv of the ONE 5ix s ICs are soldered in That s because most of the time the socket is more likely to cause trouble than the IC This is of no Consolation when one ot the soldered Cs appears to have tatled When vou need to replace a soldered in chip the right tool is essential We use a vacuum desoldering svstem made bv Pace the MBT 100 and highly recommend it Cost is about 450 worth it if vou do much PC board troubleshooting work The only other real alternative is to clip the leads from the top and remove the solder from the holes with solder wick We ve not had much luck with the non heated manual vacuum desoldering devices like the ones from Radio Shack We do not recommend that newlv soldered connections be detluxed Telos ONE x Six Rev THEORY OF OPERATION Circuit Description Notation Whenever a slash is used after a signal designation in the text or on the schematics an active low is signified The Micropr
65. parate from the lines connected to vour ONE x Six This will allow vou to install the hvbrid as a separate svstem Use this phone line exclusivelv for guests and do not publish the phone number This method retains vour screening capabilities but vou cannot turn the second hvbrid on and off from the ONE x Six without giving up the functions of some of the special function buttons on the Switch Console as described above See sections 2 3 6 and 3 2 6 Note When using two hybrids you must have tico nmiv minuses See section 2 2 1 After establishing what console audio you want to feed to the callers usc external equipment and the second output of our hybrids to create a mix minus for the internal hybrid that includes the desired console audio plus the output of the second hybrid Conversely the second hybrid requires a mix minus consisting of the desired console audio plus the output of the internal hybrid You may want to draw out the signal path ahead of time to make certain that neither hybrid is being fed its own audio Another note For best operation feed the outputs of the two hybrids to two Telos ONE x Six Rev INSTALLATION 17 different console inputs This gives you complete control over the relative mix of the two callers and helps to avoid mix minus problems 2 3 3 SWITCH CONSOLES The two center modular connectors are for Switch Consoles or console mounted control surfaces Plug vour Telos Switch Consoles or consoie
66. pping a line that is to hang up a line and get dial tone back on the selected line without going through the usual OFF and LINE button press sequence This button is useful for dropping a line when a wrong number is dialed or if many calls are to be made on the same line The function of this button third from the left may be changed by a DIP switch inside the ONE x Six See Section 2 4 Once enabled the AUTO ANSWER feature is toggled when the console auto answer button is pressed The enabled condition is indicated by the LED above the button flashing When enabled the system automatically answers lines that ring into the ONE x Six after about two rings and places them on screened hold Once the line is connected to the hold circuit the callers will hear your Program On Hold source This feature is useful in some applications where there is no one screening calls in distance learning and in teleconferencing RECORD MODE The record mode enables you to conveniently start and stop a tape recorder which is being used to record telephone calls To ready the RECORD MODE push the button once The LED above the button normally on continuously will blink The next time you press a LINE button to select a call to air the RECORD START output on the Control connector on the back of the ONE x Six will be pulsed See Section 2 2 This output can be used to start the recording device The RECORD STOP output is pulsed when the DROP or HOLD butt
67. re is active See Section 3 2 for details on this feature Double pressing any LINE button on a Switch Console or console mounted control surface will lock the line on and the LED indicator will stop flashing and remain lit ON This will deactivate the locked on conferencing feature Double pressing any LINE button will not lock the line on nor will the LED indicator stop flashing and remain lit If any other LINE button is pressed the previous line will be dropped HOLD and DROP will function normally Dip 5 2 FLASH NEW and AUTO ANSWER OPEN This is the factory default setting and will make the button third from the left below the LINE buttons of a Switch Console the FLASH NEW button All lines that are seized on the internal hvbrid will be broken for 500 millisecond locked on or not Used for PBX or Centres phone lines which require this for feature access Also useful for dropping a line when a wrong number is dialed or if many calls are to be made on the same line ON Activates the Auto Answer feature When lines ring into the ONE x Six they will automatically be answered and placed on hold Once on hold the callers will hear vour Program On Hold source This feature is useful in some applications where there is no one screening calls in distance learning and in teleconferencing The third button from the left Telos ONE x Six Rev INSTALLATION 21 22 below the LINE buttons of the Switch Console will turn thi
68. s feature on and off If you are using a console mounted control surface refer to the manual for the panel for information on how to toggle this feature Dip 6 1 Tone or Pulse Dialing OPEN This is the factory default and causes the phone pads on any Switch Consoles and console mounted control panels connected to the ONE x Six to dial out using DTMF Touch Tones ON This causes the phone pads on any Switch Consoles and console mounted contro panels connected to the ONE x Six to dial out using rotarv pulses The cadence of the pulses is 10 Hz with a break make ratio of 2 1 Time between digits dialled is 700 msec Note The DTMF Touch Tones or rotary pulses send by a telephone set to the ONE x Six via the Aux Phone port will pass through the system and cannot be affected by this switch Dip 6 2 Optional Second hybrid control OPEN This is the factory default which disables the external hybrid on off control pins 3 amp 4 on the Remote connector Any lines seized on the bottom row of the Switch Console in fact will be routed to the Aux Phone port where the screener phone is When the screener puts lines on hold with the bottom row s HOLD button thev will go to Screened Hold ON This enables the external hvbrid on off control pins 3 amp 4 on the Remote connector lf a hvbrid is connected to the Aux Phone port anv lines seized on the bottom row ot the Switch Console will eo to the external hvbrid Pins
69. s occurs and receives commands from the ONT Six to illuminate the appropriate LEDs as determined the ONE Six s software When the Switch Console is first plugged into the ONE x Six its indicator LEDs will at first all be illuminated and then will be refreshed to the current system and phone line status Telos ONE x Six Rev C OPERATION 31 32 3 2 2 3 2 3 LINE TOUCH TONE PAD A standard keypad is provided so that outgoing calls may be placed from the Switch Console The actual DTMF Touch Tones are generated internally by the ONE x Six An internal DIP switch in the ONE x Six described in Section 2 4 allows pulse dialing where Touch Tone dialing is not available A standard kevpad is provided so that outgoing calls may be placed from the Switch Console To dial out through the internal hybrid select an available line on one of the top row s LINE buttons and dial If you want to place a call on the auxiliary phone and there is no second hybrid connected pick up the handset select an available line on the bottom row of line buttons and dial using the dialer on the phone If a second external hybrid is connected select an available line on one of the LINE buttons on the top row and dial once vou re done dialling press the line button directly below the line button you selected to dial out with to transfer the call to the external hybrid LINE BUTTONS AND LED INDICATORS Operation for line selection holding e
70. tc is very similar to familiar key phone sets The maximum number of lines is six The top row of LINE buttons corresponds to the internal hybrid The bottom row connects lines either to the screener phone or if connected an external hybrid Either or both rows can be disabled via a DIP switch inside the console Refer to the Appendix for details There are two LEDs above each line selection button to indicate status of each of the phone lines and hybrids vou have connected to the ONE x Six Buttons Each row of LINE buttons has a DROP button a HOLD button and ten LINE selection buttons Since the Switch Console included with the ONE x Six is identical to the unit used with our larger svstems the last four buttons on each row will be inactive when using the ONE 1 During iri tallation up to six phone lines mav be connected to the ONE 21 The DROL and HOLD buttons aftect onlv the row of LINE buttons on which thev are located The top row routes phone lines to the internal hvbrid the bottom row routes calls to the external Aux Phone port on the rear panel ot the unit All phone lines appear in the same relative positions on both banks Each bank works independentlv of the other Telos ONE x Six Rev C OPERATION Red Bar LED Indicator Above each line selection button is a bar LED to indicate line status LINE status can be affected by pushing a LINE button on the Switch Console by a computer command to the RS 232 input
71. the Telos ONE output level the AGC maintains a constant output level when the phone line level varies between approximatelv 30 and OdBm Below approximately 48dBm a gentle noise gate downward expander operates to reduce residual hvbrid leakage and phone line noise According to AT amp T statistical studies of the USA telephone network the average level found on standard phone lines is 16dBm In our experience high volume choke network lines generally have poorer levels HYBRID STATUS These LEDs indicate whether the internal hvbrid is ON or OFF Indication of which phone lines are active to the hybrid can be seen on the Switch Console as well as the front panel s line status LEDs Telos ONE x Six Rev OPERATION 3 1 7 GAIN CONTROLS 3 2 3 2 1 These recessed trimmers adjust the send and receive levels Refer to section 2 4 for many more details THE SWITCH CONSOLE GENERAL The Switch Console is the primary user interface It provides pushbuttons for line selection and control a tone dialing pad and buttons for special functions that ease and enhance call in programming 4 cx Qu Bu 11 eu Telos desktop Switch Console Top row selects calls to go to air bottom row selects calls for off atr screening via a standard telephone The Switch Console communicates by sending and receiving serial data over a skinny wire data link The Switch Console sends data to the ONE x Six when a kev pres
72. the audio sent down the phone line is part of the digital signal processing and is set to provide the maximum level permitted Due to the internal digital limiting action of the hybrid excessive input level may cause unwanted aliasing distortion and poor adaption 2 5 2 OUTPUT GAIN The trim pot marked OUT adjusts the audio level that is being sent from the hybrid s output XLRs to vour console This trimmer changes both outputs the same amount Once again the unit is shipped with this trimmer fullv clockwise turned all the wav up Follow these steps to adjust the OUT trimmer l 03 Qi Press the G R LEVEL button so it is in the OUT position press the IN OUT button so it is in the OUT position This makes the LED meter read OUTPUT LEVEL The meter is reading caller audio level on the phone line before the output trimmer A 0 reading corresponds to an approximately 15dBm phone level This can tell you if your phone line level is acceptable The meter will not change as you adjust the output trimmer Connect one of the hybrid s outputs to a line level input on your mixer and set the mixer s meter to read that input s level Select a line on the top row of the Switch Console This will bring dial tone to that fader Run the fader up to a normal gain level Look at the meter on vour console and adjust the output trimmer on the ONE x Six with a small screwdriver so that the console s meter reads approximately 3dB Dial tone is tvpi
73. through the ONE x Six to the PBX T Md MEN cett tte RD NE TIPIN FROM TELCO DEMARC rE avg gur TO PBX TRUNK INPUT 4 TINE TIP IN FROM TELCO DEMARC TRUNK INEUT JUMPER 5 8 NECES CAN BE aa AS CESSARY REMOVED FOR TESTING GN YL az BK A SPLIT 66 BLOCK Using a split oo block to wire the ONE x s1x s loop through Telos ONE x Sx Rev INSTALLATION 11 12 Yet another approach simple paralleling If supervision is not required the Telco line may be simply paralleled to the PBX and the ONE x Six Keep in mind that the Telos ONE x Six will NOT know when shared lines are off hook or on hold from the other PBX nor will the PBX know what the ONE x Six is doing This mav cause unintended interruption of calls on the air calls being screened and so forth 2 2 AUDIO CONNECTIONS MIX MINUS The ONE x Six audio input should be fed mix minus audio That is the mix of all the sources vou want to feed the phone minus the hybrid output itself The sources that feed the mix minus bus should be pre fader so that they are always feeding the hybrid and so the operators can t upset the send level to the hybrid Increasing the send level beyond a normal meter reading does not increase the level into the phone line due to internal digital limiting of the hybrid Refer to Section 2 5 2 o
74. ul when perhaps the PD wants to see phone activity during contests without being in the studio DIPS 1 amp 2 have no ettect in this mode mu O 52 Telos ONE x Sx Rev C APPENDIX B om 14 181 DUAL 10 LINE PANEL OPTIONS The microprocessor board for the dual 10 line panels operates as a universal panel for 10 20 and 30 line systems Consoles supported include selected models from Auditronics Broadcast Electronics Harrison Neve Pacific Recorders amp Engineering Ward Beck and Wheatstone Specific operation is set up using a four position DIP switch located on the MPU board Here is a brief description of its modes of operation NORMAL OPERATION all DIPs off This is the default setting for the units when they ship from the factory This setting emulates the old panel functions 10 lines available on hybrid 1 left side and hybrid 2 right side Most users will use this setting exclusively EXTENDED OPERATION 1 DIP 1 on This setting allows the panel to access lines 11 20 in a 20 line system Hold and Off functions for both banks are duplicated for ease of operation Cm EN Mon Mo EXTENDED OPERATION 2 DIP 2 This setting allows the panel to access lines 21 30 in a 30 line system Once again Hold and Off functions for both banks are duplicated for ease of operation USER BUTTON OPERATION
75. ze the phone line associated with that button Pressing the LINE button a second time will place that line in the conference mode This is indicated on the Switch Console as BOTH LEDs lit continuously The DROP and HOLD buttons will have no effect on any line in conference mode If another line is selected on the same row the line in the conference mode will remain on the air When the LINE button is selected a third time the LINE reverts to the standard mode round LED blinking again bar LED lit continuously and the DROP and HOLD buttons of that row will affect that line as expected While the system software allows all of the lines to be conferenced together caller to caller gain may be insufficient when there are fewer hybrids in the system than active callers The ability to place lines in conference mode may be disabled by a DIP switch inside the ONE x Six See Section 2 4 for details Tips for Conferencing If vou want to keep a caller on air and add more callers put the original caller in conference mode to avoid accidentally hanging up on him her The system allows you to have more than one caller on the internal hybrid To accomplish this place a caller in the conference mode and then select one or more callers from the top row of LINE buttons on the Switch Console This is called hard mash conferencing When performing this button mashing your callers mav not hear each other verv well If vou have a second external hvbrid

Telos One-x-Six User's Manual

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