RTS TIF951 User Manual
  1. Manuals
  2. Brands
  3. RTS Manuals
  4. Intercom System
  5. TIF951
  6. User manual

RTS TIF951 User Manual

Dual telephone interface intercom systems
Hide thumbs
Table of Contents

Advertisement

Quick Links

USER MANUAL
Dual Telephone Interface
for the CS9500, CS9600, and CS9700
B
9350-71 54-000 Rev
1 /98

Advertisement

Table of Contents
loading

Related Manuals for RTS TIF951

Summary of Contents for RTS TIF951

  • Page 1 USER MANUAL Dual Telephone Interface for the CS9500, CS9600, and CS9700 Intercom Systems TSTM 9350-71 54-000 Rev 1 /98...
  • Page 2 TIF951 Operation Guide TABLE CONTENTS General Description Installation Connecting to the intercom. DIP Switch Settings Rear Panel. Switch Internal. Switch Internal Switch #3. Operation From keypanel Pro d n keys Di&g calf Hanging up Re-dialing Speed Dial Answering a Call...
  • Page 3 End-User License Agreement for Telex@ Software IMPORTANT product THIS DOCUMENT STATES THE WHICH TELEX COMMUNICATIONS, INC. (the “COMPANY”) OFFERS TO LICENSE THE INSTALLED SOFTWARE OR PROGRAM (the “SOFTWARE”) FOR USE WITH THE PRODUCT INSTALLED. YOU TERMS OF THIS AGREEMENT. IF YOU DO NOT AGREE TO THE TERMS OF THIS AGREEMENT, DO NOT USE THIS PRODUCT.
  • Page 4 IMPORTANT product. THIS DOCUMENT STATES THE TERMS AND CONDITIONS UPON WHICH TELEX COMMUNICATIONS, INC. (the “COMPANY”) OFFERS TO LICENSE THE INSTALLED SOFTWARE OR PROGRAM (the “SOFTWARE”) FOR USE WITH THE PRODUCT IN WHICH IT WAS INSTALLED. YOU ARE AGREEING TO BECOME BOUND BY THE TERMS OF THIS AGREEMENT.
  • Page 5 Each of the two telephone lines occupies an input/output port in the intercom matrix, and each channel occupies one key panel data address. The TIF951 provides general purpose control and interfacing for telephone lines. Each telephone interface channel may be used to dial out from any key panel, auto answer incoming calls, or accept incoming calls to be answered by key panels.
  • Page 6 BAUD RATE sets the data rate with which the TIF951 communicates with the intercom. The data rate for all CS9500 intercom matrices is CS9700 matrices is 76.8K BPS (switch on).
  • Page 7 TIF951 Operation Guide DIP Switch (internal): DIP Switch Ring Count settings Internal DIP Rings Internal DIP switch #3: 2 . 1 . 3 DIP switch #3, which is located internally to the unit selects the password. It has no effect...
  • Page 8 TIF951 Operation Guide DIP Switch #3, Password settings Internal DIP SW3, Switch # O f f O f f O f f O f f O f f O f f 9350-7154-000 Rev B O f f O f f...
  • Page 9 The TIF951 is operated from the intercom key panels, and from the telephone at the remote end of the line. Any key panel with a key pad may use a TIF951. All that is necessq is to program a key to talk to The alpha numeric display or tally LED for that key then provides information about the phone line.
  • Page 10 In general, you will also need to use the listen (auto follow), or (auto listen). Note that the TIF951 only responds to commands which are sent via a point to point key assignment. If you wish to use the TIF951 primarily on a assignment as the talk assignment on the talk key for any panels which are going to either answer the line, or dial out on the line.
  • Page 11 Note that the number is remembered on a phone line by phone line basis. When the last number redial command is issued, you will get the last number dialed on that TIF951 channel, regardless of which key panel dialed the number. For example, if you have a call...
  • Page 12 (internal DIP switch #2), and the actual password (internal When the caller dials into the TIF951, he will hear the line ring, then the unit will answer, and beep to request the pass word (if password re uired is enabled). The user then must enter the password.
  • Page 13 The TIF951 will behave differently depending on how it is programmed. It is up to the operator who programs the TIF951 to convey to the user what to expect. If the user is not familiar with the operation of the TIF951, it is best keep the operation as simple as possible, until they are familiar with its operation.
  • Page 14 TIF951 Operation Guide beep once if password was correct, twice enter the password, after which the TIF951 TIF951 when the intercom system is either turned off or absent, the TIF951 prompt 3 beeps. with Once the password is entered, the TIF951 will enable pro rammed ahead of time to what ever communications the caller generally needs first.
  • Page 15 TIF951 Operation Guide Programming Mode: as you can on a key panel CSEDIT). sequence you would use from a first enter programming mode by pressing 9. l n n n # K Program a 2 M # K Program a talk key to a PL.
  • Page 16 Telos ONE plus ONE Dual Digital Telephone Interface User's Manual...
  • Page 17 Telos Systems 2101 Superior Avenue Cleveland, OH 441 14 (216) 241-7225 FAX: (216) 241-4103 0 Copyright 1991 by TLS Corporation...
  • Page 18 July 10,1989 personal note: You have in your possession a remarkable piece of technology. The Telos One does what would have been either impossible or impractical only a few years ago. It relies on digital signal processing, a concept known to theorists for years but only very recently available to us as users.
  • Page 19 It wasignored accused other interface accepted by with tolerance for tisk and novelty users accepted by large numbers o f co-opted and copied! For a couple of years, Telos Systems was operated as while I continued to work as a CE. However, sales caused Telos grow beyond its "garage"...
  • Page 20 User's Manual V1.l Telos One plus ONE Dual Digital Hybrid Telephone Interface 1 INTRODUCIlON Overview 1 . 1 Specifications INSTALLATION Audio Connection to the Telephone Line RemoteControl Power Source 3 OPERATION 15 Front Panel Controls Metering and Level Adjustment Feedbackcontrol TECHNICAL DATA and TROUBLESHOOTING Overview Digital Section...
  • Page 21 SECTION 1 INTRODUCTION...
  • Page 22 OVERVIEW The Telos ONE plus ONE Dual Interface The Telos in one 19 rack mount The Telos One interface embodies a state of the art approach to interfacing telephone or teleconferencing use. The very fast and precise digital automatic nulling hybrid allows smooth, natural, simultaneous conversation without the usual speakerphone upcutting effect or the audio distortion and feedback problems often experienced with poorer hybrid-type interface devices.
  • Page 23 Analog hybrids. These were, on most phone lines, 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 (A full discussion of hybrids and interface systems the Telos Telephone b A.) The Telos One is a true digitul second generation telephone...
  • Page 24 Digital Automatic Smart Gain levels. A noise-gate/downward expander is provided on the receive path to reduce phone line noise during caller pauses. A switchable m m * d e function is provided to allow ducking of the caller while the announcer includes an acousfic ducker which dynarmcally reduces send audio...
  • Page 25 Multi-Line Systems Telos makes interface modules for multi-line switching. The Direct Interface Module offers a convenient and flexible means to switch up to telco l i n e s with provision for program-on-hold, additional telephone sets for off-air conversation, etc. The 1 A 2 interface module is for use within a standard 1 A 2 key telephone environment.

  • Page 26: Specifications

    SPECIFICATIONS System True digital. processor. processing, filtering. Trans-hybrid Loss >40 dB with pink noise or voice in our Telephone Q6.A. All dynamic enhancement processing is sm'tched off. With the ovemde and output expander functions switched-in, trans-hybrid loss Send Level Phone -10 dBm average level.
  • Page 27 SECTION 2 INSTALLATION...
  • Page 28 IN S T ALLATI O N T ~ I O S PIUS...
  • Page 29 AUDIO The drawing on the preceding page shows how the unit may be incorporated into an on-air studio Mix-minus 2.1.1 The Telos One-plus-0ne send inputs should be fed mix-minus audio. That the mix of all the sources you want to feed the i s , phone minus the hybrid output itself.
  • Page 30 Internal Mix-Minus in the ONE plus The two hybrids that a single mix-minus feed may be each hybrid's output fed to the other's input intetnnfly gain. Both hybrid outputs still function independently. The internal mix-minus cross-couples each to the other's input and inputs.
  • Page 31 A Good Idea Here's a useful scheme for stations which do a lot of taping of calls for later play on the air. The mix-minus goes into the left channel of the studio tape machhe, while the right channel gets fed from the hybrid output.
  • Page 32 Output level depending upon gain control adjustment, caller level and whether or not the AGC Pin 1 ground. Pins 2 and 3 are the balanced signal outputs. If an unbalanced output is required, connect between ground either of the hot pins. Note that Main Output...
  • Page 33 Audio Signal Flow (Each HNrid) 2.2 CONNECTION TO THE TELEPHONE LINE LINE and PHONE Modular Jacks Phone connections are made via the standard modular jacks on the rear panel. Each LINE jack is to be connected to telephone line. The two center pins connection, while the two outer through connection which pass the phone line through when the...
  • Page 34 installed. (When the SAA is internally connected to it, and functions are passed to the hybrid from the SAA as required. When the SAA is to the hybrid. Without the SAA installed, momentary closure with a KR resistor. Thus, it may be connected directly to switches or logic output as desired.
  • Page 35 SECTION OPERATION...
  • Page 36 3.1 FRONT PANEL CONTROLS ONjOFF/AUTO When the ON button is pressed, the phone line is seized and the system sends a burst of white noise down the line, allowing the hybrid to adapt to the phone line prior to the During this time, the outputs are muted.
  • Page 37 The purpose of t h i s function is twofold Aesthetic Preference. Many air talents prefer the effect of having some control over the caller when they speak. of "dynamic" Trans-hybrid Loss. l m p r m e n t Acoustic Ducking This function operates in the send audio path.
  • Page 38 Relatii ourput Level (dB) "I Phcm Line L e d As can be seen in the graph telco line level and the Telos One output level, the AGC maintains a constant output level when the phone line level vanes between approximately -30 and dBm.
  • Page 39 IN-OUT button in) while audio is present on the INPUT. Turning this trimmer up much past the the send level to the phone line due to the digital AGC! Overdriving the input may result in distortion and very poor hybrid performance! The output level meter is placed This is so that the level may be adjusted to equipment downstream The Telos' output level meter (G/R -LEVEL button out, IN-OUT...
  • Page 40 have as much room to reach for gain. In some difficult be desirable to disengage the Telos could reduce feedback margin in the same way input AGC does. repositioning the helps to use broadcast studio application. proven appropriate. Add equalization to the monitor path. Acoustic resonances usually cause pronounced peaks in the "feedback response"...
  • Page 41 SECTION 4 TECHNICAL DATA and TROUBLESHOOTING T e b ONE plus TECHNICAL DATA TROUBLESHOOTING...
  • Page 42 OVERVIEW Philosophy In the past few years, the m changed considerably. At many stations, the engineering staff been reduced 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 trouble- shooting.
  • Page 43 Access to 1) The top cover is removed with a 1/16” allen key. This expose all the circuit boards. Refer to the chart to identify the various PC boards. The power supply and piece of clear plexiglass. place your fingers under it the unit! When the cover is removed the power supply has exposed live If the hybrid...
  • Page 44 Desolden'ng While we socket the ICs that have the greatest potential for failure, most of the Telos One ICs are soldered most of the time the socket is more likely to cause trouble IC. This is of no consolation when one of to have failed.
  • Page 45 DIGITAL SECTION THEORY OF OPERATION 4.2.1 The Processor and Bus (Refer to the Processor section of t h i s The TMs32OC25 is a specialized high-speed processor intended for signal processing applications. Despite operates much like any other microcomputer from a hardware standpoint.
  • Page 46 Clock and Timing timing chain starts with a The 40 MHz output fed directly to the 32ocL5. The HC390, U9 divides the 40 MHz to 2 MHz in order to generate the C U R and CLKX signals for U1 the CODECS.
  • Page 47 U15, a 5532 opamp, provides an active hybrid function. One section drives the phone line while the other is configured as a differential amplifier in order to subtract some of the send audio before the digital process completes the job. RF3 filter network used to remove RF interference.
  • Page 48 +5v ANALOG Powers all the op-amps and the CODECS. Regulated by VR2. -5v ANALOG: Powers op-amps and the CODECS. Uses U18, switching inverter, in order to generate a negative voltage which is then regulated VR1. 4.5 INTERNAL CONNECTIONS % ! E Answer Telos ONE Hybrid Telos ONE plus ONE circuit board and...
  • Page 49 in series with CONTROL The connectors from the hybrid to the rear panel 15-pin D-sub connector. This cable runs from the connector board to the hybrid. If a "Super" auto-answer card is being used, the CONTROL cable on the connector board is plugged to the "Super" auto-answer board's connector.
  • Page 50 REMOTE CONTROL PINOUT/FUNCTION 52 to P3,P4 IF PLUGGED TO SUPER A A FCB AUTO control input DROP control input +5VDC D8 DTMF output D4 DTMF output D2 DTMF output D l DTMF output SEIZE control input Digital Ground Line Mode output Auto Mode output DTMF Data Valid AUDIO SIGNALS (J1...
  • Page 51 plus Tebs One HYBRID PARTS LIST 1 OKR 1 KR 560R 1 OKR 1 OKR 1 OKR 33KR 1 OKR 1 OKR 1 KR/ 1 1 KR/ 1 1 KR/ 1 1 KR/ 1 % lOOKR/l% 1 0 0 K R / l 1 KR 2.4KR R2 1...
  • Page 52 Telos One plus One HYBRID PARTS LIST Deslanatlon Descrlptuan TI 320C25 U2,3 27C292-3JL EPROM 74AC244 74HCT374 74ACT138 DS1232 watchdogheset 74HC590 74HC390 u 1 0 Saronix NCH080C-40Mhz osc u 1 1 74HCT04 U12,13 AMD7901CPC CODEC 2912A U15,16,17 5532 op-amp MAX636 switching inverter Prem #SPT-195 K1,2 Omron 5v DIP relay...
  • Page 53 SECTION 5 DRAWINGS Te& ONEplus ONE DRAWINGS...
  • Page 54 DRAWINGS: Hybrid Signal Flow Block Diagram TMS320C25 Pinouts Hybrid Digital Circuits Schematic Connector Board Schematic Hybrid Input and Output Audio Schematic Hybrid Phone and Control Schematic...
  • Page 55 ITE NOSE NERATOR A W Y I X ousnc pfwcK Digital Processing Section Telos ONE PLUS ONE Flow Signal Block Diagram...
  • Page 56 Telos ONE PLUS TMS320C25 Pinouts...
  • Page 58 INPUXLR AUWMlX XLR cxnPul RahE 1 J6 INPUT XLR AUWMIX XLR OUTPLITXLR RahE Telos ONE PLUS ONE connector board...
  • Page 59 (IN LVL) Telos ONE PLUS ONE input output audio &...
  • Page 60 HDRl DATA LINES Tela ONE PLUS ONE phone & control...
  • Page 61 SECTION 6 APPENDIX...
  • Page 62 TELOS ONE HYBRID: ALTERNATE SOFTWARE VERSIONS The Telos One is a "true" digital-signal-processing system. That means that most system characteristics are fixed by the software which is contained within two EPROM chips. This provides us with the opportunity to change the hybrid's audio operation to accommodate special or unique cinrumstances by merely swapping the EPROMs.
  • Page 63 considerable experience in and unusual applications. requests 5.X: The "Dallas" Version. Developed in response to the very bad phone line conditions which exist in the Dallas/Fort Worth and Miami/Fort Lauderdale areas. For some reason, these parts of the country have exceptionally bad phone service.
  • Page 64 WARRANTY and Application Caution The Telos One is warranted to be free from defects in material and workmanship for a period of 365 days. Written notice of claim must be received by seller within the warranty period. In the event of a defect during the warranty period, if customer returns the defective part or the Telos One to a place designated by the seller, transportation prepaid, seller at...
  • Page 65 RUT€: P O W E R SYSTErnS 9301-101 Jordan Avenue, Chatsworth, CA OFFER High Volume, tow Cost Manufacturing. 90-260 VAC (continuous) Universal Input. Consistent On-Time Delivery. Adherence to Industry Standards. Extensive Engineering Capabilities. Rapid Turn-Around Price, Delivery and Quality SINGLE OUTPUT MODELS uP!502003 upSu)3063 U P S S 1 ) 1 0 0 2...
  • Page 66 Accessory PCB Module DTMF=TO=ROTARY CONVERTER BOARD Tela ONEplUs DTMF-?O-ROTAF~Y CONVERTER BOARD...
  • Page 67 DTMF-TO-ROTARY CONVERTER BOARD PURPOSE The DTMF-to-Rotary Dial converter board takes DTMF (dual tone-multifrequency signals, or touchtonesB) and converts them into rotary dial (decadic) make/break pulses. THEORY OF OPERATION The phone line current detector and talc the hybrid off the Thi ..3nes are fed from recerver chip, which, in rum, drives the pulse dialer IC.
  • Page 68 tone make the central office equipment the pulse w i l l it to dialer begins. Then the pulse dialer will repeat the last digit dialed.

  • Page 69: Parts List

    Board DTMF-to-Rotary Converter PARTS LIST u1,2 DTMF decoder (Teltone M-957) u3,4 DTMF-to-pulse converter (Teltone M-969) 270pF 0 1000 U5,6 Optoisolator 4N33 hex inverter 74LS14 Quad NAND gate 74LSOO Octal open collector driver ULN2003 DPDT relay R1,2 1 MR1/4W 5% R3,4 330R 1l4W 5% R5,6,7,8 150R 1/4W 5%...
  • Page 70 lo'' '...
  • Page 71 Accessory PCB Module BASIC AUTO-ANSWER BOARD BASIC AUTO ANSWER BOARD Teks ONE plus...
  • Page 72 BASIC AUTO-ANSWER BOARD Purpose The auto-answer board is the Telos One hybrid to ringing voltage on the connected phone line, and turns the hybrid off when a break in loop current is detected. The loop current interruption, often referred to as CPC, or Calling Party Control, lines.
  • Page 73 constant prevents faking during i n i t i a l answer by preventing on brief periods of loop Basic Auto-answer Board PARTS LIST Desianation Description opto-isolator U1,2,3 1 N4004 dioide D l ,2,3,4 1 N4148 diode 6.8pF @ 25V 0.47pF @ 200V 3.3pF @ 25V current...
  • Page 74 Telos basic AutoAns 3 . 1...
  • Page 75 Accessory PCB Module "SUPER" AUTO-ANSWER BOARD ONEplus Telos SUPER AUTO ANSWER BOARD...
  • Page 76 INTRODUCTION GENERAL DESCRIPTION The “Super” Auto-Answer board One which provides reliable auto-answer and disconnect as well as other functions: *Remote control for Status indicators for off-hook condition and auto mode Open collector outputs from an integral DTMF decoder Selectable answer on first ring or after Disconnect on drop or reversal of talk battery (CPC) Disconnect on dial tone detection (selectable enable/disable) Auto mode enabled by remote button or dip switch position...
  • Page 77 interruption was probably never intentional, having early mechanically-switched relay-controlled exchanges. lines do not provide t h i s function or they provide it unreliably. However, with the proliferation of answering machines which rely upon CPC, most central office equipment now has this though, it necessary to specifically request...
  • Page 78 REGARDING DETECTION OF DIAL AND DTMF TONES IN WITH CONFERENCING CAPABILITY The auto-answer board is connected separated telco receive audio signal. Were this not the case, and the detector was merely connected across the phone line, there would be problem when multiple lines are used together in a conference. Why? Because the tones would be conveyed to each line in switching matrix) from respond to the tones from all of the other lines as well as its own!
  • Page 79 INSTAL LA TION Installation consists o f removing a jumper plug from a header connector on the Telos One and plugging in the auto-answer The auto-answer board should be removed and the jumpers replaced with other than Central' Ofice-type lines with talk battery is expected, since the diodes in the detect section will cause severe audio distortion loop...
  • Page 80 4) Replace rear panel with the new one, mount the DE15 remote connector, and plug the ribbon cable into the PCB socket. 5) Set the auto-answer dip switches for the desired options (described in the operation section next) before reassembling unit. OPERATION SOFTWARE VERSION DIP SWITCH OPTIONS...
  • Page 81 originate a c a l l . The AUTO input also a momentary pushbutton, but requires alternate action operation. Each time the button is pressed, t h e auto mode will toggle to the opposite state. Power-up is to the "no auto" mode (unless DIP #1 is active).
  • Page 82 DTMF TOpiE DECODER The auto-answer board brings out to the connector five signals f r o m a DTMF (TouchToneGD) decoder: four signal. The tones are decoded and presented according to the chart. These pulled up (weakly) on the auto board and thus outputs inputs to standard special...
  • Page 83 DB15 PINOUTS (REMOTE) AUTO control input DROP control input +5VDC output D8 DTMF outout D4 DTMF 02 DTMF output D l DTMF output SEIZE control input Ground Line Mode output Auto Mode output DTMF Data Valid Charts showing the hexadecimal codes for the touchtone decoder and pinouts for the 75-pin remote control connector.
  • Page 84 was in when the DROP pin went LO. This i s done to signal the operator that the device that initially turned the hybrid on via a maintained closure has not released the SEIZE input yet. The ON/OFF and AUTO outputs will still function normally.
  • Page 85 auto status, auto on/off) remain the same. It is recommended that the key phone handset be OFF-HOOK rates. If the talent wants to release a line without taking another caller, he can hit the hook switch to pop the button up! normally, the hybrid must be turned off manually.
  • Page 86 "SUPER" AUTO ANSWEWRELEASE ADDENDUM #1 SOFIWARE VERSION This version of software is very similar to the AA V1.1 software, but intended for use on the telephone system of France. Here are the major differences: Ring detection is based on the French ringing frequency o f Dial tone release has been changed to differentiate between the various reorder tones applied on the French telephone network.
  • Page 87 "SUPER" AUTO ANSWEWRELEASE ADDENDUM #2a (supercedes Addendum 2) SOFTWARE VERSION V 5 . 2 system. The Italian phone- system uses a non-standard reorder tone that is pulsed at a rate of 200 HARDWARE CONSIDERATIONS: In order to recognize this tone the hardware must be changed.
  • Page 88 Super Auto-answer Board PARTS LIST u 1 - 4 Optoisolator 4N33 Call Prog Detect SS175T982-CP DTMF Decoder SS175T204-IP Octal open coll. driver ULN2003 Microprocessor 87C751-1 N24 Octal buffer 74LS244 RP 1 10KR SIP 4306R-101-103 R P2 lOKR SIP 4310R-101-103 2.2KR 1/4W 5% 47KQ 1l4W 5% 100KR 1/4W 5% 910R 1/4W 5%...
  • Page 92 T u t o r i a l ELECTRONIC PHONE SYSTEMS Tebs ONE plus ELECTRONIC PHONE TUTORIAL...
  • Page 93 Electronic Phone Systems This tutorial introduction to electronic phone systems may be helpful you desire to The cable from the phone convey: Power to operate the phone A two-way data path The speech audio path The early electronic phones used a separate pair for each of the three functions, and thus required six wires.
  • Page 94 Usually, in the two pair approach, the center two wires on the modular plug are the audio path. To Hybrid One method for interfacing to some electronic phones. chokes pass the DC voltage to the phone set when the hybrid is active.
  • Page 95 connected to the console's on/off logic outputs to perform function. This scheme works well for one-call-at-a-time situations as you would have in a newsroom or production studio or for occasional on-air problem remains, however, when calls need to be taken one after the other, as in must be signalled each time a'new'line to the line can...

This manual is also suitable for:

Cs9500Cs9600Cs9700

Table of Contents