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Price: $25 US
Industrial Fiber Optic
Link/Repeaters
Model CH45
User Manual
UMCH45
REV AB
25 Commerce Way #1 North Andover, MA 01845
(978)-688-8807 • FAX (978)-688-8771
www.dymec-dynastar.com
3-44-0005-00-01 Printed in USA
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Warnings, Cautions, and Notes as Used in this Publication WARNING Warning notices are used in this publication to emphasize that hazardous voltages, currents, or other conditions that could cause personal injury exist in this equipment or may be associated with its use. In situations where inattention could cause either injury or damage to equipment, a Warning no- tice is used. CAUTION Caution notices are used where equipment malfunction is possible if care is not
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Table of Contents Page 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.1 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.2 Model CH45 Link/Repeater . . . . . . . . . . . . . . . . . . . . . 1-4 1.2.1 9 pin Data Port D-Connector . . . . . . . . . . . . . . . . 1-4 1.2.2 HD/FD Jumpers . . . . . . . . .
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Model CH45 EIA 422 or 485 1. INTRODUCTION The DYMEC-DynaStar Model CH45 is a data communication Link/Repeater Card, for use in the DYMEC-DynaStar 3900 Series Chassis, which allows the replacement of copper wire with fiber optic cable. Link/Repeaters simply convert electrical signals to light for transmission, then, when received, convert the light to electrical signals. This is done for EIA 422 and EIA 485 formats. Link/Repeaters are passive to software protocol. They are not ad
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Model CH45 EIA 422 or 485 Slave: A Slave is an IED that is passive in a Master/Slave configuration. A Slave's communication is under the control of the Master, and the slave only responds to specific poll requests from the Master. Peer: Peers are IEDs that have equal status and each may initiate a communication when allowed by the system software by a time slot, token, etc. FOC: Fiber Optic Cable. Single-mode: Single-mode fibers generally have diameters of 5µm to 13µm. B
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Model CH45 EIA 422 or 485 Full Duplex Communication: Simultaneous transmit and receive communications. T: Transmit optical port. TE: Diagnostic LED that illuminates when the Link/Repeater is receiving an electrical transmit from its IED. TO: Diagnostic LED that illuminates when the Link/Repeater is transmitting a signal optically. R: Receive optical port. RE: Diagnostic LED that illuminates when the Link/Repeater is delivering a received optical signal electr
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Model CH45 EIA 422 or 485 1.2 MODEL CH45 LINK/REPEATERS Each Link/Repeater consists of the following elements shown in Figure 1. Logic Invert Biasing Resistor HD/FD Jumpers Jumper Jumpers DB 9 Electrical Connector Diagnostic LED's ST Fiber Connectors Data Coupling Repeat Jumper Jumpers FIGURE 1. Elements of the Link/Repeater 1.2.1 9 pin Data Port D-connector The Link/Repeater connects directly to an IED's EIA 422 or 485 communication port. The pin out configuration of
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Model CH45 EIA 422 or 485 HD HD HD MODE FD MODE FD FD Trans/Rec Data − − − − [B/B’] Transmitted Data − − − − [B] (Link lnput) • 1 • 1 Trans/Rec Data + [A/A’] Transmitted Data + [A] (Link Input) 2 • • 2 No Connect Received Data − − − − [B’] (Link Output) 3 3 • • No Connect Received Data + [A’] (Link Output) • 4 • 4 Signal Ground Signal Ground 5 • • 5 No Connect No Connect 6
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Model CH45 EIA 422 or 485 1.2.4 Data Coupling Jumper The Data Coupling jumper selects the electrical input conditioning; the AC position selects capacitively coupled, the DC position is directly coupled. AC: AC coupling has a minimum incoming data requirement of 1200 baud due to the capacitive coupling. This option blocks DC electrical levels should the device connected fail and ‘stick in a high level’. DC: DC coupling allows DC logic levels to be transmitted over the fiber n
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Model CH45 EIA 422 or 485 T Optical Port R Optical Port FIGURE 5. Optical Ports 1.2.7 Optical Ports There are two optical ports, T and R. The T optical port transmits data signals optically to the next Link/Repeater. The R port receives the optical data signal from another Link/Repeater's T optical port. Each port is fitted with an "ST" type receptacle for connecting the FOC FIGURE 6. Diagnostic LED positions on faceplate of CH45 1.2.8 Diagnostic LEDs Each Link/
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Model CH45 EIA 422 or 485 that the illumination of the LEDs corresponds with activity in the unit. See Figure 7 for LED patterns and signal paths. 243 2413 2413 1 REP REP REP OFF OFF OFF Normal Transmission Normal Receive Repeat Mode Selected FIGURE 7. Diagnostic LED patterns and signal paths NOTE The diagnostic LEDs only illuminate when there is signal traffic and are not illuminated during signal "quiet" times. If during quiet time, TE and TO are illuminated, it suggests e
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Model CH45 EIA 422 or 485 manufacturer's specification on attenuation per unit length, attenuation due to aging, diameter, and tensile strength. Choosing the best quality FOC for your installation is important. NOTE DYMEC-DynaStar can supply multi-mode glass FOC in either Simplex, Duplex, or Breakout construction, cut to length, terminated, polished and tested. The specifications for all DYMEC-DynaStar supplied cables are as follows: Fiber Diameter: 62.5/125µm Tensile
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Model CH45 EIA 422 or 485 2. CONFIGURATIONS, OPERATION, AND INSTALLATION Model CH45 Link/Repeaters can be connected in a Point-to-Point configuration, an Optical Bus network, an Optical Star network, or a Master/Slave Loop configuration depending on the needs of the overall communication system. Model CH45 is designed to accept differential electrical inputs per EIA 422 and EIA 485 standards. Various implementation of these electrical standards can result in different types of el
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Models CH45 EIA 422 or 485 Master Last Slave T+ T- R+ R- T+ T- R+ R- 2413 2413 REP REP OFF OFF FIGURE 8. Point-to-Point Configuration 2.1.1 Installation 1. Set the HD/FD Jumper to the appropriate position for each Link/Repeater and its respective IED. 2. Set the Mode Jumper on both of the units to the "OFF" position. 3. Set the Data Coupling Jumpers for the appropriate position based on the data rate used in the communication network 4. Set the Logic Inversion Jumper t
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Model CH45 EIA 422 or 485 NOTE The diagnostic LEDs only illuminate when there is signal traffic and are not illuminated during signal "quiet" times. If during quiet time, TE and TO are illuminated, it suggests either a polarity reversal (pin 2 with pin 1) or that the IED is biased pulling the “A” (+) line with respect to the “B” (-) line. After checking the polarity on the connections, refer to Section 3.5. The diagnostic LEDs may "flicker" when data is passing. This is normal ope
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Models CH45 EIA 422 or 485 Four Wire EIA 485 Master/Slave Master Typical Slave Last Slave T+ T- R+ R- T+ T- R+ R- T+ T- R+ R- REP REP 2413 2413 2413 2413 OFF OFF REP REP OFF OFF Two Wire EIA 485 Master/Slave Master Typical Slave Last Slave - - - + + + REP REP 21 21 21 21 OFF OFF REP REP OFF OFF Figure 10. EIA 485 Bus Configurations APPLICATION NOTE Another variation of the point-to-point concept, is the Optical Star network. This topology may be created using the DYMEC-DynaSt
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Model CH45 EIA 422 or 485 The DYMEC-DynaStar Optical Stars can also be used to create a multi-drop Master / Slave Optical Star network. The Model CH45 is optically compatible with the OS5 and OS9 Master and Slave ports. Figure 11 shows a typical connection of an Optical Star network. The master IED must always be connected to the Master port (port 1) of the Optical Star. The slave IED’s must always be connected to the Slave ports (port 2 and up) of the Optical Star. Variations of
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Models CH45 EIA 422 or 485 Master IED TR Dymec MODEL OS5 FIBER OPTIC STAR Slave Slave Slave IED IED IED TR TR TR Dymec MODEL OS5 FIBER OPTIC STAR Slave Slave Slave Slave IED IED IED IED TR TR TR TR FIGURE 11. Optical Star Configuration (OS5 cascaded to an OS5) 2-6
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Model CH45 EIA 422 or 485 2.2 LOOP OPERATION - MASTER/SLAVE CONFIGURATION NOTE Before constructing a loop network, be sure that the software protocol of the Master is capable of managing the receipt of its own echoed transmission. If it cannot, then use either an Optical Bus or Optical Star configuration. This configuration supports a system which requires more than two IEDs to be communicating. In a Master/Slave loop system, one IED acts as a Master at all times and addresse
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Models CH45 EIA 422 or 485 The Master must have its Mode Jumpers in the "OFF" position. When it transmits a request out its T optical port, it will receive the echo of its request at its R optical port. This request has gone around the loop, and has been repeated by each Slave in the loop. However, the Master does not repeat (re- transmit) any of these received signals optically back around the loop, because its Mode Jumpers are in the "OFF" position. NOTE The communication logic
