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1. Connection between two TC 1900s Tc1900 Tc1900 DB9 female DB9 female Tx Data 3 3 Tx Data Rx Data 2 2 Rx Data Signa 5 Signal amp Frame amp Frame Ground Ground Figure 6 RJ 11 Cable between TC1900s System Start Up and Operation for hotlink 1 Apply the power by plugging the power plug into any power jack on the rear panel The power source can be from a power adapter or from a power card installed either on the left or right side of the rack 2 The PWR A or PWR B LED on the front panel s of the Base AND Expansion boards will light according to which power Jack A or B is connected Both LEDs will light when power redundancy is utilized 3 The Vcc LED and VDC should also light indicating an adequate operating voltage is being derived from the power source 4 Make sure front panel DIP switches set to up up up down up down up up 5 Atthe rear panel connect the RS 232 signal into the DB9 female connector Connect a telephone set to phone RJ11 jack and slide FXS FXO switch to FXS position 6 Communication is setup between TC1900 peers the alarm LED will be off the green sync LED should be on to indicate good RS 232 is received 7 Lift up local phone s handset and observe the remote TC1900 s ring LEDs start to flash 8 Once the remote phone rings the remote user can answer the call by picking up the remote handset 9 Whenboth parties communicate the front panel volume LEDs should i2. SW6 7 amp 8 select different RS 232 transmit signal baud rates from 9600 to 64Kbps see note Please refer to following table Most common baud rate is 19 2Kbps The higher the baud rate the better the voice quality Note Baud rates over 19 2Kbps will release in the future Currently TC1900 does not support baud rate higher than 19 2Kbps Baud1 Baud2 Baud3 9600 A A 19 2K 32K For future release 38 4K For future release 48K For future release 56K For future release 57 6K For future release 64K For future release Rear Panel Connectors and Switches Power J acks TC1900 is capable to connect to redundant power supply Two power connectors at the rear panel each labeled as PWR A and PWR B If one power source fails the other will take the full load DB9 Female Connector For RS 232 connection only three wires required Tx pin 2 Rx pin 3 and signal ground pin 5 TC1900 Rear View DB9 female connector TC1900 User s Manual Rev 1 3 RJ 11 Connector for LINE Use regular phone wire to connect TC1900 to a dial up phone network such as phone line from Telco or PBX phone line The slide switch next to RJ11 jack should set to FXO RJ 11 Connector for PHONE Connect to a regular conventional 2 wire telephone Slide Switch for FXS and FXO When the TC1900 is connected to an outside dial up phone network the switch should set to FXO The r
3. or220VAC power supply TC1900 User s Manual Rev 1 3 Front Panel Alarm Optic or RS 232 Signal Status FXO or FXS Volume Indicator RS 232 RS 422 Optic Transmitter baud rate indicator amp Receiver available note RS 422 future release only when ordered Transmit amp Receive Volume Indicators Indicators for Incoming Ringing DIP switches Power Input amp 1 remote loopback Operating Voltage Status 2 local loopback PWR A power Supply from PWR A jack 3 disable alarm T PWR B power supply from PWR B jack 4 Select R S 232 or fiber interface VccA 5 VDC operating voltage power supply 5 Async or Sync not used VDC 24 VDC ring generator power supply 6 7 amp 8 baud rate selection TC1900 s Front Panel 4 TC1900 User s Manual Rev 1 3 Rear Panel eus ee 500mA ag w an 9 d on EET PHONE FXS FXO LINE Or Telephone Set Dry Contact Relay normal open To Telephone Line PBX or Key Systems Redundant power supply input only one power supply is needed FXO LINE is connected to Phone Line FXS LINE is disconnected and TC 1900 is hotlink Q 88 232 or RS 422 port to another TC1900 peer to peer link TC1900 User s Manual Rev 1 3 Front Panel LEDs DIP Switches LEDs POWER A When lit a good power source is present at power jack A rear panel POWER B When lit a good power source is present at power ja
4. Communications Inc breaches its obligation of warranty the sole and exclusive remedy of the Buyer is limited to replacement repair or credit of the purchase price at TC Communications Inc s option To return a product you must first obtain a Return Material Authorization number from the Customer Service Department If the product s warranty has expired you will need to provide a purchase order to authorize the repair When returning a product for a suspected failure please provide a description of the problem and any results of diagnostic tests that have been conducted The shipping expense to TC Communications Inc should be prepaid The product should be properly packaged and insured After the product is repaired TC Communications Inc will ship the product back to the Buyer at Seller s expense to domestic destinations The Buyer is responsible for all shipping costs for foreign destinations NU TC1900 User s Manual Appendix A idi If TC1900s are co purchased with other TC Communication s products such as TC2100 8116 and 8300 etc The cable assembly shown in figure 7 will be provided for connection between TC1900 and other TC products Figure 7 provides the pin assignment and proper connection between DB9 and DB25 connectors TC1900 RS232 ASYNC DB9 MALE to RJ11 FEMALE Connector DB9 MALE RJ 11 FEMALE GND TC1900 RS232 ASYNC DB25 FE
5. MALE to RJ11 FEMALE Connector RJ 11 Cable EE uu TC2100 or TC8116 DIS RJ 11 FEMALE DB25 FEMALE Figure 7 RS 232 DB9 and DB25 FEMALE Connections Diagram 16 TC1900 User s Manual Rev 1 3 Appendix B Glossary FXO Foreign Exchange Office FXO configuration is required for a plain old telephone service POTS to generate a call to the telephone network FXS Foreign Exchange Station FXS configuration is required for a telephone network to generate a call to a plain old telephone set Hotlink direct connected phone line PBX Private Branch Exchange A telephone exchange device owned by private entity Ringdown provide ringing signal RS 232 Async clock timing 1s embedded in the signal itself RS 232 Sync clock and data are transmitted separately Toll quality voice voice frequency is restricted within 300Hz to 3 4K Hz zT os
6. TC 1900 QUICK TALK RS 232 or Fiber Telephone Extender User s Manual Notice Although every effort has been made to insure that this manual is current and accurate as of date of publication no guarantee is given or implied that this document is error free or accurate with regard to any specifica tion TC Communications Inc reserves the right to change or modify the contents of this manual at any time without prior notification COPYRIGHT 1992 2001 ALL RIGHTS RESERVED ARC Electronics 800 926 0226 arc arcelect com TC1900 User s Manual Rev 1 3 Table Of Contents Chapter 1 OVerVIe W i52 oxi mcr ROG D aro br rS oto anadan akaa nadhan Bu PEE VE ER RADVEE RR ER QU 3 fl nec 3 DS CHIDO NM et seca he T a ahaa tas TNE AE cd e ia EE 3 FrontPane liisis aeeaiei chabecdatsttast earl AA EE a dps dat ARANEA cu Ri EAEE E E AA bane Fo in evt bra i ona siue 4 peupPansl rep P E e LEUTE 5 Front Panel EEDS DIP 5 WitChes icc cisistuscotersccvsvseteteeaseeveeeivedle ec toe rdv rrr Buen e6 edo aua Rea UV oe pena bent 6 Esc e DM ETE T 6 DIP SWAG INOS re did eii avt cde t ede Pu da ai dino dier adore uv n Rua s 6 Rear Panel Connectors and Switches ccccsscscsececeesseeseessseeesseneseeecareseseesseeeseesseseneeseseeneneeeaee 7 doi rldib ie cmm M A 7 DBS Female Connector setae a Dv p c eode eps te sut tf E C M LIE 7 RII Connector ftor LINES uias ote ta anre tdi atecxt ori ga Ein Hi eg Aga de Con Gao MAR Rd ax e
7. cc D 16 Appendix Ba b 06d crab nod C6 AI dE EE E CLAU IUS Diode fado ELA ER DASS 17 GOSS ATY e T 17 TC1900 User s Manual Rev 1 3 Chapter 1 Overview Features p 2 wire Analog Telephone Voice to Async RS 232 or Optional Fiber Optic Signal Toll Voice Quality with Ringdown Capability FXS or FXO switchable RS 232 Async Data Rate Down to 9600 Baud LEDs Indicate Volume Ringing Status and FXO FXS FPGA Technology Field Programmable Array Consumes Low Power p p p p p p Various Power Voltage Available 12VDC 24VDC 48VDC or 115VAC to 240VAC p Stand Alone or Rackmount Description The TC1900 Quick Talk is designed specifically for adding telephone connection via existing asynchronous RS 232 channel or fiber optic cables It supports telephone set and FXS FXO connection The voice picked up by a handset s mouth piece connected to TC1900 is digitized by a built in CODEC code and decode chip and further compressed to lower data rates The voice data stream is converted to an asynchronous bit stream and transmitted by RS 232 transmitter The RS 232 link can take many forms such as a Satellite data link or one of the data channels provided by a TDM time division multiplexer such as the TC8116 or TC2800 When a bit stream is received by the remote matching TC1900 the compressed voice bit stream is extracted from the asynchronous bit stream and then expanded Finally the expanded voice bit st
8. ck B rear panel VecA 5V Voltage indicator This LED should light whenever power is connected to the unit It indicates the correct operating voltage is being derived from the power source VDC Indicates 24 V power supply status ALM Alarm indicator When lit on Red there is problem with incoming optic electrical signal SYNC When lit it indicates valid RS 232 signal is received When flashing it indicates invalid RS 232 or fiber optic signal is received FXS FXO Indicate the FXS FXO slide switch position If TC1900 is used to extend a dial up phone line the LINE switch should set to FXO RING LEDs flash when incoming phone start to ring to provide visual indication Baud Rate Indicate the baud rate Volume Tx When lit it shows the voice volume from the local handset Volume Rx When lit it shows the voice volume received from the remote unit The louder voice the brighter the LEDs DIP Switches RMTLB This switch SW1 turns on the Remote Loopback function i e either received RS 232 or fiber optic signal is transmitted out LOCLB This switch SW2 turns on the Local Loopback function so the user can hear the echo of their own voice TC 1900 local loopback TC1900 User s Manual Rev 1 3 DIS ALM This switch SW3 disables the buzzer during an alarm condition E O Switch 4 Up Off position is for electrical use Down On position is for Optic use BAUDI 2 amp 3 These three switches
9. e a purchase order to authorize the repair When returning a product for a suspected failure please provide a description of the problem and any results of diagnostic tests that have been conducted Warranty All products manufactured by TC Communications Inc come with a two year warranty TC Communications Inc warrants to the Buyer that all goods sold will perform in accordance with the applicable data sheets drawings or written specifications It also warrants that at the time of sale the goods will be free from defects in material or workmanship This warranty shall apply for a period of two years from the date of shipment unless goods have been subject to misuse neglect accident damage improper installation or maintenance or alteration or repair by anyone other than Seller or its authorized representative The Buyer should notify TC Communications Inc promptly in writing of any claim based upon warranty and TC Communications Inc at its option may first inspect such goods at the premises of the Buyer or may give written authorization to the Buyer to return the goods to TC Communications Inc transportation charges prepaid for examination by TC Communications Inc The Buyer shall bear the risk of loss until all goods authorized to be returned are delivered to TC Communications Inc TC Communications Inc shall not be liable for any inspection packing or labor costs in connection with the return of goods In the event that TC
10. emote peer TC1900 should switch to FXS Ifa hotlink phone line is desired then both TC1900s should set this switch to FXS Dry ContactRelay Terminal Blocks The Dry Contact Relay is normally in the Open position Following conditions will activate the dry contact relay to close status 1 When there is a Major Alarm RS 232 or fiber optic signal lost This function can be disabled by set front panel SW3 to down position 2 Ringing signal is received This function can not be disabled by SW3 at the front panel 12 VDC amp 500m O O PAR Ew PHONE FXS _ FXO LINE 4J Telephone Set e Dry Contact Relay normal open Or Telephone Line e Redundant power supply input only one power supply is needed FXO LINE is connected to phone line FXS LINE is disconnected and TC1900 is hot link RS 232 or RS 422 port to another TC 1900 peer to peer link Figure 2 TC 1900 s Rear Panel TC1900 User s Manual Rev 1 3 TC1900 DB9 Female Connector TC1900 RS232 ASYNC Async RS 232 Signal DB9 MALE to RJ11 FEMALE Pin Assignment DBO9 female 2 Rx Data Device u TC1900 RJ 11 FEMALE Signal amp Frame Ground Lo ge c TC1900 Rear View Figure 3 RS 232 DB9 and DB9 MALE TO RJ 11 FEMALE Connector Diagram TC1900 RJ11 Female Connector Phone amp Line Pin Assignment Only middle 2 pins
11. he remote end can pickup the phone and dial out to outside phone network just like regula telephone line extended Use TC1900 to Extend PBX or Network Connection Duplex Fiber Cable RS 232 RS 232 data channels data channels Slide FXO FXS switch to FXS Slide FXO FXS switch to FXO TC 1900 TC 1900 to PBX or phone line OR KEY SYSTEM 11 TC1900 User s Manual Chapter 2 Installation o Unpacking the Unit Before unpacking any equipment inspect all shipping containers for evidence of external damage caused during transportation The equipment should also be inspected for damage after it is removed from the container s Claims concerning shipping damage should be made directly to the pertinent shipping agencies Any discrepancies should be reported immediately to TC Communications Customer Service Department Equipment Location The TC1900 should be located in an area that provides adequate light work space and ventilation Avoid locating it next to any equipment that may produce electrical interference or strong magnetic fields such as elevator shafts or heavy duty power supplies As with any electronic equipment keep the unit from excessive moisture heat vibration and freezing temperatures Power Supply Each TC1900 is powered by an external DC power adapter rated 9 to 12VDC 400mA The actual power consumption is only around 250mA when powered by 12VDC The DC power pl
12. ndicate the transmit and receive volume 10 When one of the parties replace the handset to hook to terminate the communication both units will turn into idle state 13 TC1900 User s Manual Rev 1 3 Chapter 3 Testing amp Troubleshooting General The RJ 11 cable connectors and DB9 connector are frequently the source of various problems Check out the connectors cable and pin connections first Once installation of the TC1900 is complete it is a good idea to perform a Local Loopback test to verify that the TC1900 is working properly Local Loopback Testing The purpose of this test is to verify the input output connections handset signal input receiver and output voice driver Set the LOCLB DIP switch SW2 to the down position You should be able to hear your own voice echo TC 1900 local loopback iX Remote Loopback Testing The purpose of remote loopback test is to verify either the RS 232 or fiber optic connection Once the front DIP switch 1 is pushed down the unit s received RS 232 or fiber signals will be loopbacked to the originator as shown in the following diagram TC 1900 RS 232 or fiber optic interface remote loopback 14 TC1900 User s Manual Rev 1 3 Return Policy To return a product you must first obtain a Return Material Authorization number from the Customer Service Department at TC Communications Inc If the product s warranty has expired you will need to provid
13. ream is sent to the CODEC chip to restore the voice signal Then the handset s ear piece converts the voice signal to sound When digitized voice signals are being exchanged via a RS 232 link the status of off hook on hook and ring are also be being embedded in the bit stream Therefore a local TC1900 can detect remote hook status or if a ring signal has been sent by the remote TC1900 Since a regular telephone set is used and TC1900 has built in ringing generator the process to place a call is depicted as follows Initiate a call When two TC1900s connected by RS 232 link or fiber optic cables are first powered up both units are in idle status which is referred to as on hook status for a regular telephone set The local TC1900 places a call by lifting the handset to ring the remote telephone set Answer the call When a remote TC1900 is ringing by the local TC1900 the remote user can answer the call by lifting the handset Terminate the call Either the local or remote user can terminate the call by placing the handset back to the hook The LEDs on the front panel show the power status ringing signal voice volume picked up by local phone s mouth piece and the voice volume received from remote peer TC1900 has a built in dry contact relay to provide external alarm and ring connection The standard power supply is 12VDC at250mA Power options include 24VDC 48VDC or AC to DC power adaptor which can be ordered for a 110VAC
14. tn I UR GL Ra odd 8 RITE Connector for PELO E ee sese rosa esed desacuerdo pet ndi une Di ordi E see 8 Slide S witch for F XS Sandi XQ iosdiecta c red eee toda eh astelaatebnaidonieiua ca ev Rea ede bd aged 8 Dry Contact Relay Terminal BloCkS oec ento nire Reid e Pr Dr ERE Rt ua blat etos eaten d 8 Application Example 1 Hotlink Phone via RS 232 Async Channel sesem 10 Application Example 2 Dial Up Phone Extension via RS 232 Async Channel 11 Chapter Installation iren dis orto bi a iap ina Lo cui i898 a nadaa CP pia eR TER EDU PO EFIE REE 12 Unpacking the a e 12 Equipment EOCalO eiu e a A Cia hacen AE A A E E O 12 Power SUD Dy c TT 12 Electrical Signal Connection ao doni evt refe En asse edes pais loose re cse Anse cases 12 The DIP switches Setting and LEDS Status iret etaient externa d Ea ea eas 12 System Start Up and Operation for hotlink orar Ee ete REDI REIS ERR D Geert NER 13 DB9 Cable Connection between two TC T9005 iunctis ede Hd bit to dee tive cus apud EU MIR URS 13 Chapter 3 Testing amp Troubleshooting c eee 14 Gerais o das thin etm EA Lan d DM QE cu E 14 Local Loopback Tes Ung code eene Hee mtu et et ed pex ue ut tua dude revu ador CLR D Earl baud 14 Remote Loopback NES BG ap neci ec M HM ten sib n LL ue ud 14 Ret m PONCY DRE ERR E lessees 15 Wattanly ud e erepti veneror ern SEN P SI Ne Rep te Poet n TONO EE ERE Eee e Ra Ee Ter pi eR EN ER i doen 15 PUD DON UK a o
15. ug is 2 5mm with positive polarity at center Alternate power sources are available as an option Either a power adapter or power card can be utilized to supply the power LE to the TC1900 The power plug can be plugged into any power jack on the m rear panel Since each TC1900 card is equipped with a power redundancy O RSS capability the power LEDs on the front panel will light according to which 2 5mm aia power jack s is are connected Electrical Signal Connection The DB9 female connectors for the RS 232 electrical signal are located on the rear panel When RS 232 is used for connecting to a remote TC1900 the front panel DIP switch 4 E O should be set to off or up position The DIP switches Setting and LEDs Status All the DIP switches on front panel should be at off or up position except SW 4 E O which should be set according to preferred link media RS 232 or fiber The baud rate switches should be set to either 9600 or 19 2 Kbps When power is first turned on all the LEDs except right most column and buzzer should be flashing for one second This allows the user to be sure all the LEDs are in working condition After one second the alarm LED should be on solid sync and one of FXS or FXO LED should be on to indicate FXO or FXS setup The flashing green LEDs will turn to solid when abnormal conditions are removed and red LED alarm will be off z12 TC1900 User s Manual Rev 1 3 DB9 Cable
16. used Tip Ring Telephone Line PBX or Key System Figure 4 Phone Line RJ 11F Connection Diagram TC1900 User s Manual Rev 1 3 Application Example 1 Hotlink Phone via RS 232 Async Channel A typical application is to convert a data channel to a voice channel As shown in the following diagram the TC8116 or TC1881 is an eight channel async RS 232 time division multiplexer By connecting a TC1900 to one ofthe data channels and using regular telephone set the users at both sides ofthe fiber link can have a hotlink phone line setup When one user lift up the handset the remote side phone will start to ring When remote side user pickup the handset the phone stop to ring and the conversation begins When conversation is over any user can replace the handset to hook to terminate the phone link RS 232 RS 232 data channels data channels Slide FXO FXS switch to FXS Slide FXO FXS switch to FXS TC1900 Figure 5 Typical Application Diagram A TC1900 User s Manual Rev 1 3 Application Example 2 Dial Up Phone Extension via RS 232 Async Channel This application is to extend a dial up phone line via existing data channel As shown in the following diagram the TC8116 or TC1881 is an eight channel async RS 232 time division multiplexer By connecting a TC1900 to one of the data channels and a regular dial up phone line to LINE RJ11 jack and slide switch to FXO the users at t
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