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TC2200R/S Bus

User's Manual

Rev. 2.2

Installation Example & RS-232 Virtual Connection

To install a multi-drop bus topology, follow the example below.  The SCADA Host controller is connected
to the Master unit (TC2200), and four RTUs are connected to Slave units (TC2201).  Notice the fiber cable
from each unit's optic "TxA" (on the right side) is connected to the next unit's optic "RxA," while each unit's
optic "TxB" (on the left side) is connected to the next unit's optic "RxB."  In this example, the "RxA" on
the Master unit and "RxB" on the last Slave unit (End unit) should be disabled.

Figure 14.  RS-232 Installation Example

Figure 15.  RS-232 Virtual Connection Diagram

Note 1: The internal DIP Switch functions for Multi-Master units differ slightly from the Single Master units shown (see page 7).
*Note 2: For units purchased after February 1, 2006, the settings of SW1_3 are reversed  than for the settings shown on the
diagrams above. ; Set SW1_3  to the Left (On) for Master and  to the Right (Off) for Slave, see notes1 & 2 on page 6. (Units

bought prior to February 1, 2006 hold the same settings as shown above)

TxA

TxA

TxA

TxA

TxA

BRD

BRD

BRD

RSP

RSP

CTS

CTS

CTS

CTS

CTS

RSP

RSP

RSP

BRD

BRD

RTS

RTS

RTS

RTS

RTS

RTU

RTU

RTU

RTU

5

5

5

5

5

3

3

3

3

3

4

4

4

4

4

2

2

2

2

2

RxA

RxA

RxA

RxA

RxA

RxB

RxB

RxB

RxB

RxB

TxB

TxB

TxB

TxB

TxB

Summary of Contents for TC2200R

Page 1: ...gard 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 2007 ALL RIGHTS RESERVED MODEL S N DATE TC Communications Inc 17881 Cartwright Road Irvine CA 92614 Tel 949 852 1972 Fax 949 852 1948 Web Site www tccomm com Email info tccomm com TC2200R S MULTI DROP BUS FIBER OPTIC MODEM User s ...

Page 2: ...he Unit 11 Equipment Location 11 Dry Contact Alarm Relay 11 Power Supply 11 Installation Procedure Summary 11 Installation Example RS 232 Virtual Connection 12 Chapter 3 Troubleshooting 13 General 13 All LEDs are Off 13 Alarm LED 13 Optic Cable Types 13 Calculating the Loss on the Fiber 13 Chapter 4 Bench Tests 14 General 14 Testing Considerations 14 Bench Test With Built In Signal Generator 14 Op...

Page 3: ...he Master TC2200 unit s function is to convert the electrical signals RS 232 RS 422 or RS 485 from the Host controller to fiber optic signals then transmit the signals in both bus directions to the Slaves as illustrated in Figure 1 The first Slave in the bus intercepts the Master s broadcast message and forwards it to its downstream Slave unit Each subsequent Slave forwards the broadcast message u...

Page 4: ...t s optic receiver A labeled RxA The same applies to the left or B direction Because the TC2200 2201 can transmit to and receive from two directions it allows for three different topology arrangements as illustrated below Note The Dual Master optional topology enables fault tolerance similar to a self healing function in many applications If a fiber link becomes degraded or broken in this topology...

Page 5: ...Ch1 from local Host BRD 2 for TC2201 Broadcast msg Ch2 from remote Master for TC2200 Broadcast msg Ch2 from local Host RSP 1 for TC2201 Response msg CH1 from local RTU for TC2200 Response msg CH1 from remote Slave RSP 2 for TC2201 Response msg CH2 from local RTU for TC2200 Response msg CH2 from remote Slave PWRA solidly lit The power source connected to Power jack A is powering the unit PWRB solid...

Page 6: ...te which configuration the unit has This is true for all types of electrical interfaces If the TC2200 2201 has an RS 422 or RS 485 or RS 530 interface then the unit s DTE or DCE configuration can be changed by flipping SW1_4 left for DTE right for DCE If the TC2200 2201 has an RS 232 interface then the unit s DTE or DCE configuration can ONLY be changed by replacing the unit s interface module fro...

Page 7: ...for a predetermined amount of time based on the baud switch settings of SW1_7 SW1_8 The TC2200 2201 has a built in Anti Streaming function Anti Streaming can prevent a defective RTU from blocking out an entire response channel once activated the electrical signal from the defective RTU is blocked and the entire response channel is disconnected from the Slave unit This feature can be disabled by sl...

Page 8: ...gnal of logic highs and lows will be sent through the fiber to all units in the bus simulating a broadcast or response message The BRD LEDs on the Master and RSP LEDs on the Slaves will flash indicating transmission receipt of the other s signal SW2_4 DIS ALARM When this switch is in the Down position the audio alarm buzzer and dry contact alarm relay switch are disabled Pin Assignments and Connec...

Page 9: ...e 11 2 wire RS 485 Connection Logic Diagram For RS 422 and RS 485 4 wire interfaces pins 2 14 are inputs while pins 3 16 are outputs Figure 12 4 wire RS 422 RS 485 Connection Logic Diagram For 2 wire RS 485 interfaces pins 3 16 are input outputs ...

Page 10: ... accomplished by leaving the W5 jumper installed at both ends of the link There is no termination resistor required for RS 232 applications Figure 13 Termination Resistor Locations Fiber Optic Specifications Transmission Distances typical The TC2200 and TC2201 are compatible with all popular sizes and types of fiber Transmission distances up to 3km are typical over Multimode fiber at 850nm and 4km...

Page 11: ...ture While only one connection is required to power the unit both connectors can be used simultaneously When power redundancy is utilized both power A B share the load If one power supply fails the other will take over the full load Alternate power sources are available as an option see Chapter 6 Specifications Installation Procedure Summary The TC2200 and TC2201 are designed for quick and easy in...

Page 12: ...t should be disabled Figure 14 RS 232 Installation Example Figure 15 RS 232 Virtual Connection Diagram Note 1 The internal DIP Switch functions for Multi Master units differ slightly from the Single Master units shown see page 7 Note 2 For units purchased after February 1 2006 the settings of SW1_3 are reversed than for the settings shown on the diagrams above Set SW1_3 to the Left On for Master a...

Page 13: ...g function has been activated Optic Cable Types Conventionally fiber optic cable with yellow colored insulation is used for Single Mode applications gray or orange colored insulated cable is for Multimode use If Multimode cable is used in a Single Mode application the test results could be erroneous and confusing Calculating the Loss on the Fiber The fiber optic link and or connectors are frequent...

Page 14: ...he TC2201 Slave has a signal generator to simulate an RTU s response message The built in signal generator is a pulse signal indicated by a blinking LED The flash rate is intentionally reduced for easy visual confirmation 1 Set up the bench test as shown in Figure 16 At the Master unit turn on the SIG GEN by slidingSW2_3 on the front panel downward The BRD 1 and BRD 2 LEDs on the TC2200 Master sho...

Page 15: ...al DIP switch SW1_2 to the Left position to disable RxB Connect a BERT tester to the DB25 connector Set the tester up as a DTE or DCE device the opposite of the unit s lit DCE or DTE LED indicator The BERT tester should indicate a SYNC signal Remove the patch cord from TxB and RxA and switch SW1_2 back to the Right position The SYNC light on the tester should turn Off To test the TxA to RxB loop r...

Page 16: ...e bench test as shown in Figure 18 Set SW2_2 LOCLB on the front panel to the Down position and the ALARM LED should start flashing Set the tester up as a DTE or DCE device the opposite of the unit s lit DCE or DTE LED indicator The BRD 1 BRD 2 and RSP 1 RSP 2 LEDs should be dimly lit showing the status of the looped signal The BERT tester should indicate a SYNC signal This test should be performed...

Page 17: ...th appropriate interface module At least two 2 optical jumper cables patch cords with appropriate connectors Procedure Set up the bench test as shown in Figure 19 Make sure to set the internal DIP switches accordingly for each unit At the front panel of the Slave unit to be tested slideSW2_1 RMTLB to the Down position Set the tester up as a DTE or DCE device the opposite of the Master unit s lit D...

Page 18: ... BRD RSP LEDs mean Ans The BRD 1 BRD 2 stand for Broadcast Data They are the signals from the SCADA Host connected to the Master to be transmitted or broadcasted to the Slaves The BRD 1 BRD 2 LEDs on the Master unit reflect the incoming signal status of the DB25 s connector pins 2 4 for an RS 232 interface from the SCADA host On the Slave units the BRD 1 BRD 2 are the received broadcast signals or...

Page 19: ... sensitivity threshold typically from 33dBm to 36dBm the Rx A LED will light solid A marginal or fault condition causes it to flash In some cases the RxA optic signal is above the sensitivity threshold but is of poor quality This will result in an invalid data packet being received causing the SynA LED to flash The possible fault conditions could be one of the following A Received optic signal s p...

Page 20: ...ion setup and Panel LEDs to indicate the status of electrical and optical signals These features can ease installation and facilitate troubleshooting The following diagram depicts the board locations of several key components Figure 21 TC2200 2201 Component Placement Diagram Chapter 5 Component Placement SW2 ...

Page 21: ...422 or RS 485 System Bit Error Rate 1 in 109 or better Visual Indicators Rx A Rx B SynA SynB Vcc BRD 1 BRD 2 RSP 1 RSP 2 MASTER SLAVE DTE DCE PWRA PWRB ALARM Dry Contact Alarm 12VDC 1A Power Source standard 12VDC 650mA optional 24VDC 400mA optional 48VDC 120mA optional 115 or 230VAC with external power cube Temperature Operating standard 10o C to 50o C High Temp Version optional 20o C to 70o C Sto...

Page 22: ...ade of pins 4 5 and 7 Figure 22 DB25 Cable Assembly and Virtual Pin Connections Diagrams ADAPTER S RJ 11 PLUG s DCE Pin Connections Cable Assembly To RTU PLC To TC1900 TC2200 To TC1900 To RTU PLC RJ 11 JACK pin assignment DB25 MALE Connector Channel 1 Channel 2 DB25 MALE Connector TC1900 DB25 MALE Connector RJ 11 to DB25 Connector DB25 to RJ 11 ADAPTER RJ 11 Cross Over Cable RJ 11 3 TxD RxD RTS Rx...

Page 23: ...ion may first inspect such goods at the premises of the Buyer or may give written authorization to Buyer to return the goods to TC Communications Inc transportation charges prepaid for examination by TC Communications Inc 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 pa...

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