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TC8000 4 to 8CH Audio/Intercom

User's Manual

Rev. 7.0

MNL-80000-01-70

- 7 -

Base Card LEDs, DIP Switches

Figure 5. TC8000 Base Card's Front Panel

AUDIO M UX

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Summary of Contents for TC8000

Page 1: ...ion TC Communications Inc reserves the right to change or modify the contents of this manual at any time without prior notifica tion TC8000 4 to 28 CHANNEL AUDIO INTERCOM AND DATA FIBER OPTIC MULTIPLEXER User s Manual MODEL S N DATE COPYRIGHT 1992 2020 ALL RIGHTS RESERVED TC Communications Inc 17881 Cartwright Road Irvine CA 92614 Tel 949 852 1972 Fax 949 852 1948 Web Site www tccomm com Email inf...

Page 2: ...ynchronous Optional 10 RS 485 Two Wire Half Duplex Asynchronous 11 TTL Asynchronous 12 Dry Contact Closure Detector Relay Switch Optional 12 RJ 11 to DB25 Female Async Sync Connection Cables 13 Chapter 2 Installation 15 Unpacking the Unit 15 EquipmentLocation 15 System Configuration see DIP switch settings on pages 7 and 8 15 Power Supplies 15 Fiber Optic Cable Types 15 Calculating the Loss on the...

Page 3: ...inds of interfaces can be specified analog intercom and data The analog interface is for FSK frequency shift key applications The analog interface has 600 ohm isolation audio transformer The analog voltage can be 0 to 3 Vpp The intercom interface is for 4 or 2 wire voice communication It connects to a handset with mouth and ear piece Since the analog and voice signals are digitized the voice quali...

Page 4: ...ram Figure 1 Functional Block Diagram Tx Rx to optic cable Typical optical launch power 19dBm 850 1300nm MM 14dBm 1300nm SM Typical optical receiving sensitivity 34dBm 850 1300nm MM 36 dBm 1300nm SM Convert serial data to parallel Convert parallel data to serial LEDs Alarm LEDs PWR A PWR B Signal Vcc ...

Page 5: ...h power sensitivity and distance are listed for reference only These numbers may vary Transmission Distances typical The TC8000 will work with all popular sizes and types of fiber Transmission distances up to 4km are typical over multimode fiber at 850nm and 6km at 1300nm Distances to 35km are typical over sing le mode fiber at 1300nm Transmission distances may vary due to the characteristics of a...

Page 6: ...w Figure 4 TC8000 Rear Panel View Base Card AUDIO MUX AUDIO MUX Expansion Card Base Card Expansion Card Optional Expansion Board Expansion Card Base card Channels 1 4 Analog Intercom Channels 1 4 Analog Intercom Power A Connector Power B Connector Dry Contact Relay Connector Dry Contact Relay Connector ...

Page 7: ...TC8000 4 to 8CH Audio Intercom User s Manual Rev 7 0 MNL 80000 01 70 7 Base Card LEDs DIP Switches Figure 5 TC8000 Base Card s Front Panel AUDIO MUX ...

Page 8: ...TC8000 4 to 8CH Audio Intercom User s Manual Rev 7 0 MNL 80000 01 70 8 Expansion Card LEDs DIP Switches Figure 6 TC8000 Analog Expansion s Card Front Panel AUDIO MUX ...

Page 9: ...at the rear panel For analogaudiosignals pin 5 is transmit TIP pin 2 is transmit RING pin 4 is receive TIP pin 3 is receive RING For intercomaudiosignals pin 5 is MIC pin 2 is MIC signal from handset s mouth piece pin 4 is SPKR pin 3 is SPKR signal goes to handset s ear piece Figure 7 Four Wire Analog Pin Assignments Connection Diagram Figure 9 Intercom Pin Assignments Connection Diagram Figure 8 ...

Page 10: ...ced output pins Pin 3 is the positive output RxD while pin 4 is negative RxD Either pin 6 or pin 1 can be Signal Ground Only RS 422 RS 485 Async communications can be used with the TC8000 due to the limited number of pins on the RJ 11 connector RS 232 Async with Control Sync For RS 232 interfaces pin 5 is the input TxD pin while pin 4 is the output RxD pin A separate channel on each RJ 11 port is ...

Page 11: ...RS 485 2 wire Electrical Signal Interface Connection Pin Assignments Two wire Half Duplex RS 485 Asynchronous Optional For two wire RS 485 use pins 3 and 4 Either pin 6 or pin 1 can be Signal Ground Figure 12 Two wire RS 485 Async Pin Assignments Virtual Connection Diagrams ...

Page 12: ...tact closure detector as shown in the diagram below The receiver side has a dry contact closure relay switch The close and open status is controlled by a relay switch inside the TC8000 It reflects the remote detector s on and off status The diagram below illustrates the virtual pin connections for using the TC8000 as either a Detec tor Transmitter or a Dry contact Closure Receiver The RJ 11 s pins...

Page 13: ...YNC DTE RS 232 with Control Pin Assignments Connection RJ 11 to DB25 Female Async Sync Connection Cables The user s device can be a DCE or DTE device which may have a DB25 male connector The following eight illustrations depict the RS 232 TTL RS 232 Async with control RS 232 Sync RS 422 RS 485 wiring diagrams for constructing an RJ 11 to DB25 Female adapter cable Figure 16 RJ 11 ASYNC DTE RS 232 T...

Page 14: ...0 01 70 14 Figure 19 RJ 11 SYNC DCE RS 232 Pin Assignments Connection Figure 21 RJ 11 ASYNC DCE RS 422 RS 485 Pin Assignments Connection Figure 22 RJ 11 ASYNC DTE RS 422 RS 485 Pin Assignments Connection Figure 20 RJ 11 SYNC DTE RS 232 Pin Assignments Connection ...

Page 15: ...el Please refer to the rear panel page page 6 for locations Since each TC8000 is equipped with power redundancy capability the power LEDs on the front panel will be ON to indicate related power input Fiber Optic Cable Types Conventionally fiber opticcable with yellow colored insulationis usedforsinglemodeapplica tions gray or orange colored insulated cable is for multimode use If multimode cable i...

Page 16: ...r plug is inserted to power jack B right jack for power redundancy insert two power plugs from differ ent power supply Alarm flashing because nooptic signalinput Vcc on to indicate good 5VDC derived from either power A or B 2 Apply a valid optic signal either from a remote peer TC8000 or loop back from its own optic Tx Following LED changes should be observed Alarm LED is turned off All the Green ...

Page 17: ...ill verify that the total loss of the system is within the loss budget of the device Two it will provide a benchmark for future testing For example a system that has been tested as having 6dBm total loss when installed and suddenly tests out as having a loss of 10dBm obviously has a connector orlinkproblem Optic Loopback Test At anytime you may use a short cable to loopback from Optic Tx to Rx The...

Page 18: ...300nm 62 5µm 20dB singlemode 1300nm 9µm ST is a Trademark of AT T Electrical Connector RJ 11 Interface RS 232 RS 422 RS 485 TTL Dry Contact Relay Analog or Intercom TTL Input Voltage Maximun Rating 0 5 to 7V Recommended TTL Input Voltage Vin High 2 0V to 5V Vin Low 0V to 0 8V Maximum Analog Input 3V p p System Bit error rate 1 in 109 or better Visual indicator POWER A POWER B Alarm and Channel Ind...

Page 19: ...rcom User s Manual Rev 7 0 MNL 80000 01 70 19 Physical rack mountable card Height 19cm 7 00 Width 3 2cm 1 25 Depth 22 8cm 9 00 Weight 280gm 10 oz standalone box Height 19cm 7 2 Width 3 2cm 2 6 Depth 22 8cm 9 5 Weight 280gm 3 lb ...

Page 20: ...eral the Model TCRM191 is used for multiplexers and the Model TCRM192 for modems Both can operate with one power supply or dual load sharing power supplies The AC power supply automatically adjusts for 90 to 264VAC input and 47 to 63 Hz operation The DC power supply accepts 48VDC input The AC and DC power supplies can be mixed in the same unit The dual power supplies feature automatic switchover i...

Page 21: ...ons Inc Buyershallbeartherisk of loss until all goods authorized to be returned are delivered to TC Communications Inc TC Communications Inc shall not beliablefor anyinspection packingorlabor costs inconnectionwith the return of goods In the event that TC Communications Inc breaches its obligation of warranty the sole and exclusive remedy of the Buyer is limited to replacement repair or credit of ...

Page 22: ...not be responsible for delays or non deliveries directly or indirectly resulting from or contributed to by foreign or domestic embargoes seizure fire flood explosion strike act of God vandalism insurrection riot war or the adoption or enactment of any law ordinances regulation or ruling or order or any other cause beyond the control of TC Communica tions Inc TC Communications Inc shall not be resp...

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