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Summary of Contents for Optelecom 9525A
- Page 1 Optelecom 9000 Series Installation and Operation Manual Model 9525A Dual Optics RS232, RS422, or RS485 Drop and Insert Modem UM50235, Manual 9525A, Rev. D...
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Page 3: Table Of Contents
Table of Contents Section Page Safety Instructions Instrucciones de Seguridad Sicherheitsanleitungen Consignes de Sécurité External Wiring Information 1 - INTRODUCTION 1.1 General description 1.2 Physical Specification 1.3 Environmental Specification 1.4 Functional Specifications 2 - INSTALLATION System Architecture Modes of Operation Operational Features and Considerations Set-Up Procedures Mounting... -
Page 4: Safety Instructions
Safety Instructions SA-1 The safety information contained in this section, and on other pages of this manual, must be observed whenever this unit is operated, serviced, or repaired. Failure to comply with any precaution, warning, or instruction noted in the manual is in violation of the standards of design, manufacture, and intended use of the unit. -
Page 5: Instrucciones De Seguridad
Instrucciones de Seguridad SA-1 Debe observarse la información de seguridad contenida en esta sección, y en otras páginas de este manual siempre que se opere, dé servicio o repare esta unidad. Si no se cumple con alguna precaución, advertencia o instrucción indicada en este manual se infringen los SA-1 estándares de diseño, fabricación y el uso destinado a la unidad. -
Page 6: Sicherheitsanleitungen
Sicherheitsanleitungen SA-1 Die in diesem abschnitt und auf anderen seiten dieses Handbuchs enthaltenen Sicherheitsinformationen müssen befolgt werden, wenn diese einheit betrieben, gewartet oder repariert wird. Falls Vorsichtsmassnahmen, Warnungen oder Anweisungen in diesem Handbuch nicht befolgt werden, verstösst dies gegen die Konstruktions, und Herstellungsstandards und erfolgt im gegensatz zum vorgesehenen Verwendungszweck dieser einheit. -
Page 7: Consignes De Sécurité
Consignes de Sécurité SA-1 Les consignes de sécurité contenues dans cette section et dans le reste de ce manuel doivent être respectées a chaque fois que cet appareil est utilisé ou fait l’objêt d’une maintenance ou d’une réparation. Le non-respect d’une précaution, d’un avertissement ou d’une instruction figurant dans ce manuel est une violation des normes de conception, fabrication et indication d’usage de l’appareil. -
Page 8: External Wiring Information
Fiber Information This unit was manufactured with attention to fiber cleanliness by TKH Security Solutions USA. Beyond the optical safety information contained in this manual, the following guidelines should be observed when working with optical fibers. The biggest problem is dirt! It takes very little contamination to cause problems with optical fiber connections;... -
Page 9: Introduction
1 - INTRODUCTION 1.1 General description The TKH Security USA Model 9525A is an RS232, RS422, and RS485 compatible stand alone fiber optic modem with dual optics for drop and insert applications which can be configured in a wide range of poll/response network architectures. -
Page 10: Physical Specification
WAVELENGTH OPTICAL PORT BUDGET 9525A-S-ST 62.5/125 µm 850 nm 22 dB 9525A-L-ST 62.5/125 µm 1310 nm 21 dB 9525A -LD-ST 09/125 µm 1310 nm 23 dB 9525A-LD-FC 09/125 µm 1310 nm 23 dB 9525A-LD3-ST 09/125 µm 1550 nm 23 dB 1.2 Physical Specification... -
Page 11: Functional Specifications
1.4 Functional Specifications 1.4.1 OPTICAL Version Wavelength, nm 1310 1310 1550 Output power, dBm, with BERT Signal enabled, dBm 62.5 um fiber 09/125 um fiber Input power, dBm, min. for 10 BER, measured with transmitting unit BERT Signal enabled 1.4.2 ELECTRICAL (Tx and Rx) Data Interfaces RS232, RS422, or RS485 (2- or 4-wire), switch selectable Connectors... - Page 12 1 — M 9525A E IGURE ODEL NGINEERING IEWS AND IMENSIONS...
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Page 13: Installation
To do this, connect a Model 9525A in RS232 mode to the RJ45 expansion port of another Model 9525A, set the unit for Master Daisy Chain operation and connect other daisy chains to it in the same way they are connected to the... - Page 14 2 – S IGURE IMPLE AISY HAIN RUNKS FROM THE ASTER WITH XAMPLES OF RANCHING SING THE XPANSION...
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Page 15: Modes Of Operation
2.1.3 Fault Tolerant Redundant Ring With the architecture shown in Figure 3, all modems are arranged along a dual fiber ring starting with the master controller modem (operating in Master Fault Tolerant mode), looping through a number of local terminal modems (operating in Local Fault Tolerant mode), and terminating back into the second set of optical ports of the master controller modem, completing the ring. - Page 16 3 – F IGURE AULT OLERANT RCHITECTURE...
- Page 17 In this mode, priority select is not used. This mode is normally used in a network with numerous modems in local daisy chain mode, where the master can act at the head of two separate daisy chains (or more, if the expansion port is used).
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Page 18: Operational Features And Considerations
2.2.2 Local Daisy Chain Mode In this mode, there is a specific "upstream" and "downstream" data direction. Specifically, the TX1 and RX1 ports communicate upstream with the master controller and the TX2 and RX2 ports communicate downstream with the next modem on the daisy chain. The local daisy chain mode is not fault tolerant. Optical data received from the master via RX1 is re-timed, retransmitted downstream via the TX2 port and output as RD on the data port. - Page 19 To use this feature an active RTS signal is required. If the RTS input cannot be actively controlled, the electrical side anti-streaming feature must be disabled. MODES switch numbers 1, 2, and 3 allow the user to select one of seven timeout periods, or disable the feature. To select a timeout, calculate the longest transmission burst expected by the terminal and pick the next highest timeout period.
- Page 20 2.3.5 Echo Cancel There is a circuit that prevents data transmitted around a ring by a unit operating in Master Fault Tolerant mode from being output as received data (RD). This data would normally be termed an ECHO. Some software is intolerant of echoed data. Echo cancel is mandatory when operating in RS485, 2-wire mode to prevent data corruption, optional in other interface modes.
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Page 21: Set-Up Procedures
2.4 Set-Up Procedures The Model 9525A has two dipswitches, marked TIMEOUTS and MODES, accessible via the rear panel. Program each of these switches upon installation to satisfy your chosen network operational requirements. Refer to the following paragraphs. 2.4.1 Modes of Operation To select among the four operational modes as described in Section 2.2, set switch numbers 1 and 2... - Page 22 Optional Switches ECHO CANCEL, SWITCH #7: In RS232, RS422, or RS485 4-wire modes, when operating as a master in a fault tolerant ring, the data ECHO may be disabled by setting MODES switch #7 in the DOWN position. RS485 LINE TERMINATION, SWITCH #10: If the modem is connected to an RS485 bus, terminate the input by setting switch #10 in the DOWN position only if it is the terminating unit on the bus.
- Page 23 Warning: If one of the rings in a fault tolerant ring is broken, a modem on the ring may only be able to receive an important signal from one direction. In this case, unless a time period greater than the priority select timeout elapses before the next transmission occurs, the priority select circuit will not be able to react in time and the first portion of the message could be lost.
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Page 24: Mounting
2.6 Optical Cabling 2.6.1 GENERAL The Model 9525A communicates over four fibers: two fibers to transmit and receive in one direction and a second fiber to transmit and receive in the other direction. Most cable manufacturers identify the individual fibers in the cable. Check the fiber and mark it to ensure that the fiber connected to the TX1 and RX1 ports of the modem at one end are the same fibers that are connected to the RX2 and TX2 ports, respectively, of the modem at the other end. -
Page 25: Electrical Cabling
2.7.1 RS232 Connections Connect both the master controller CPU and each local terminal's RS232 com port via the DB25S RS232 port on the Model 9525A modem. The only required connections between the terminal equipment and the modem are pins 2 (Data Input), 3 (Data Output), and 7 (Signal Return/Common). -
Page 26: Power Wiring
When using the expansion port to branch the network, wire the EXP port to the DB25 port on a second Model 9525A. See the figure below for cable wiring diagram. NOTE: The extended 9525A must be in RS232 mode and the electrical side anti-streaming must be disabled. -
Page 27: Operation
2.8.2 BACKUP BATTERY CONNECTION If it is decided to equip the unit with a 6V gel cell type emergency backup battery, connect it to the two-position BAT screw terminal connection. See the Specification section 1.4 for a recommended battery type. OBSERVE THE POLARITY! 3 - OPERATION 3.1 Turn on Procedure Supply primary power to the unit. -
Page 28: Bert Test
3.3 BERT Test The unit has a rudimentary BERT test feature that may be implemented off-line. See section 2.3.6 for additional information. While the test is being run, no other signals may be introduced to a modem in the network. To run the test, set either switch #3 (for TX1 source), or switch #4 (for TX2 source) of the MODES dipswitch DOWN. - Page 30 TKH Security Solutions www.tkhsecurity.com Siqura B.V. TKH Security Solutions USA Zuidelijk Halfrond 4 • 2801 DD Gouda 12920 Cloverleaf Center Drive • Germantown The Netherlands Maryland 20874 USA Telephone: +31 182 592 333 Telephone: +1 301 444 2200 Fax: +31 182 592 123 Toll Free: +1 800 293 4237 E-mail: sales.nl@tkhsecurity.com...
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