Table of Contents
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Table of Contents
Related Manuals for JDS Uniphase SB Series
Summary of Contents for JDS Uniphase SB Series
- Page 1 SB SERIES FIBEROPTIC SWITCH User’s Manual...
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Page 3: Table Of Contents
Initial Inspection......................11 Operating Environment ....................11 Temperature ......................12 Humidity......................12 Ventilation......................12 Storing and Shipping.....................12 Claims and Repackaging...................12 Returning Shipments to JDS Uniphase .............12 Cleaning Connectors.....................13 Installing the Switch.......................14 Operating and Maintenance Instructions ................15 Front Panel........................15 Operating Keys....................15 Status LEDs.......................15 Rear Panel ........................16 External Switch Module Connections ................16... - Page 4 Sample Driver Application: Electrical Equivalent of Driver..........17 Powering Up the Switch ....................18 Using and Selecting a Channel ..................18 Setting the GPIB Address .....................19 Setting the Interface Command Set for SC and SX Switches ........19 Controlling the Drivers....................19 Controlling the Switch Locally ..................20 Controlling the Switch Remotely by GPIB Interface ............20 Controlling the Switch Remotely by RS232 Interface............20 Calibrating the Switch....................21...
- Page 5 For sales and service information, contact JDS Uniphase or your local representative. JDS Uniphase Corporation 570 West Hunt Club Road Nepean, Ontario, Canada K2G 5W8 Phone: 613 727-1303 Fax: 613 727-8284 E-mail: sales@jdsunph.com Website: http://www.jdsunph.com SD000153 Rev. J May 2000...
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Page 6: Safety Information, Instructions, And Symbols
Safety Information, Instructions, and Symbols Safety Information Classification The unit consists of an exposed metal chassis that is connected directly to earth via a power cord and, therefore, is classified as a Class 1 instrument. Class 1 refers to equipment relying on ground protection as a means of shock protection. -
Page 7: Safety Instructions
Failure to comply with any of these instructions or with any precaution or warning contained in the user’s manual is in direct violation of the standards of design, manufacture, and intended use of the unit. JDS Uniphase assumes no liability for the customer’s failure to comply with any of these safety requirements. - Page 8 circuit the fuse. • Unless absolutely necessary, do not attempt to adjust or perform any maintenance or repair procedure when the unit is opened and connected to a power source. • Repairs are to be carried out only by a qualified professional. •...
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Page 9: Safety Symbols
Safety Symbols The following symbols and messages can be marked on the unit (Table 1). Observe all safety instructions that are associated with a symbol. Table 1: Safety Symbols Symbol Description Laser safety. See the user’s manual for instructions on handling and operating the unit safely. -
Page 10: Compliance
Compliance CE Compliance The unit has been designed and tested to comply with directive 73/23/EEC and its subsequent amendments by the European Community (EC or CE). The directive relates to electrical equipment designed for use within certain voltage limits. It ensures that electrical equipment is constructed with good engineering practice in safety matters. -
Page 11: General Information And Specifications
This user’s manual for the SB Series Fiberoptic Switch contains complete operating instructions. The SB Series 1xN programmable switches are designed to connect a single fiberoptic input channel to any of N (up to 48) output channels (Figure 1). The performance, configuration,... -
Page 12: Dual-Common (Sb-D) Switch Configuration
Figure 2: Single-Common Configuration Dual-Common (SB-D) Switch Configuration The D configuration provides simultaneous connection of a bank of inputs to outputs (Figure 3). The input A can be connected to 1A of 1B or …(N/2)A. In this dual-common configuration, channel connections are stepped in pairs. The channel displayed is the current channel pair (A and B). -
Page 13: Dual-Common Blocking (Sb-F) Switch Configuration
Figure 4: Single-Step Dual-Common Configuration Dual-Common Blocking (SB-F) Switch Configuration This configuration allows one of the inputs to be aligned with an output in a blocking sense, with reduced output channel counts available (Figure 5). Figure 5: Dual-Common Blocking Configuration Key Features •... -
Page 14: Specifications
Specifications The following optical specifications describe the warranted characteristics of the unit ( Table 2). Supplementary specifications describe the typical non-warranted performance of the unit (Table 3 and Table 4). Table 2: Optical Specifications Parameter Typical Maximum Insertion loss single-mode 0.4 dB 0.7 dB multimode... - Page 15 Table 3: Operating Specifications • Step-up, step-down channel selection Local control • Control of one external relay driver • IEEE 488.1 address selection • Return-to-local function • Language selection • GPIB interface: Remote control IEEE 488.1 1987 capability SH1, AH1, T6, L4, SR1, PP0, DC1, C0, E1 •...
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Page 16: Getting Started
Getting Started The SB Series Fiberoptic Switch consists of the switch unit and an AC power cord. The rack- mount kit is optional. Before Initializing and Operating the Unit Inspect the unit for any signs of damage. Read the user’s manual thoroughly, and become familiar with all safety symbols and instructions to ensure that the unit is operated and maintained safely. -
Page 17: Temperature
• The unit does not pass the initial inspection In the event of carrier responsibility, JDS Uniphase will allow for the repair or replacement of the unit while a claim against the carrier is being processed. Returning Shipments to JDS Uniphase JDS Uniphase only accepts returns for which an approved Return Material Authorization (RMA) has been issued by JDS Uniphase sales personnel. -
Page 18: Cleaning Connectors
Ship return material in the original shipping container and packing material. If these are not available, packaging guidelines are as follows: 1. Wear an anti-static wrist strap and work in an ESD controlled area. 2. Cover the front panel with a strip of cardboard. 3. -
Page 19: Installing The Switch
1. Blow the sleeve with filtered compressed air (Figure 6). Figure 6: Connector Cleaning (connector type can vary) 2. Apply optical grade isopropyl alcohol or optical grade ethanol (do not use rubbing alcohol) to a small area of a lint-free towel and rub the end of the ferrule over the wet area. 3. -
Page 20: Operating And Maintenance Instructions
Operating and Maintenance Instructions Front Panel The front of the switch is shown in Figure 7. Figure 7: Front of the Switch Operating Keys The operating keys are described in Table 5. Table 5: Operating Keys Description I / O Turns the power on (I) and off (O) DRIVER 1 Toggles driver 1 on and off... -
Page 21: Rear Panel
Table 6: Status LEDs Description Indicates that the GPIB or RS232 interface is in Remote mode. All front-panel keys except Local are locked out. LOCK Indicates that the SB switch is in Local Lockout mode. This mode prevents the Local key from returning the SB switch to Local mode. ADDR Indicates that the GPIB interface is in talk or listen state Indicates that the interrupt logic of the SB switch has generated a service request... -
Page 22: External Switch Module With Ttl Input Controls
Figure 9: Switch Setup without TTL External Switch Module with TTL Input Controls The setup for a switch with TTL is shown in Figure 10. Figure 10: Switch Setup with TTL Sample Driver Application: Electrical Equivalent of Driver A sample driver application is shown in Figure 11. Operating and Maintenance Instructions –... -
Page 23: Powering Up The Switch
Figure 11: Sample Driver Application: Electrical Equivalent of Driver Caution Do not exceed 100 mA per driver. Powering Up the Switch To power up the switch: 1. Connect the switch to the AC power source with the AC power cord provided. 2. -
Page 24: Setting The Gpib Address
To select a channel: 1. Press the key to scroll to the channel number required. The switch mechanism advances to the channel when the key is released. In SB-C models (SB1CXXXXX+2XXXXXXXX), the channel number displayed is the current channel number connected to the common fiber C (the switch has one common fiber). In the SB-D models (SB2DXXXXX+2XXXXXXXX), the channel number displayed is the current channel pair (the switch has two common fibers). -
Page 25: Controlling The Switch Locally
applications. All drivers are controlled by remote commands (use the Driver port at the back of the switch). Driver 1 can also be controlled locally by the Driver 1 key. To control driver 1 locally: 1. Press the Driver 1 key to toggle driver 1 on and off for manual control. The status LED of the key is lit when on. -
Page 26: Calibrating The Switch
2. At the computer, initialize the serial port to 1200 baud, eight bit ASCII character code, one stop bit, and no parity. Use the following MS-DOS Qbasic program as an example: OPEN "COM2;1200,N,8,1" FOR RANDOM AS #1 PRINT #1, "CLOSE 5" PRINT #1, "CLOSE? "... - Page 27 6. Reinstall the connector panel, guiding the fibers back to ensure that they do not bend sharply. Operating and Maintenance Instructions – 22...
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Page 28: Programming Guide
Programming Guide The following programming instructions for the SB switch are intended for users who are familiar with the GPIB interface and how to send or receive messages over a device. A detailed description of the GPIB interface is contained in ANSI/IEEE Std. 488.1-1987 IEEE Standard Digital Interface for Programmable Instrumentation , published by the Institute of Electrical and Electronics Engineers. -
Page 29: Gpib Interface Functions
3. Press the GPIB ADDR key. The new address is activated and stored. To leave the GPIB address unchanged, press the Driver 1 key. GPIB Interface Functions The GPIB interface functions are listed in Table 7. Table 7: GPIB Interface Functions Mnemonic Function source handshake, complete capability... -
Page 30: Rs232 Driver Pin Assignment
Table 8: RS232 Interface Specifications Name Symbol Pin Number Signal Direction transmitted data received data request to send clear to send data terminal ready signal ground — The data protocol is permanently set to 1200 baud ASCII character code, with eight bits per character, one stop bit, and no parity bit. -
Page 31: Operation Commands
• A command is contained in a message, and messages can contain more than one command, each one separated by a semicolon (;). For example, CLOSE 6;XDR 2 1 <CR> <LF> contains two commands. • All GPIB commands must end with the terminating sequence <CR> <LF>. •... -
Page 32: Query Commands
XDRS i Drivers Control Sets all eight relay drivers according to the binary conversion of i. The binary weight of the drivers is as follows: • Driver 1 = 1 • Driver 2 = 2 • Driver 3 = 4 •... - Page 33 XDRS? Drivers Returns the states of all drivers in a binary-coded integer. LRN? Learn Returns a string containing three commands that, if sent, reset the switch to its current state, for example, CLOSE i;XDRS k;SRE l, where i represents the current path number, k represents the states of the external drivers, and l represents the value of the service request enable register.
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Page 34: Status Reporting And Service Request Control
Identifier Returns a string that identifies the manufacturer, the switch series, and the firmware level, for example, JDS Uniphase, SB Switch, 2.00 Status Reporting and Service Request Control The SB switch maintains three eight-bit registers that are used for status reporting and for enabling the GPIB service request interrupt: •... -
Page 35: Srq Mask Register
error request error available error • Bit 7 (self-test error) is set if a calibration error is detected after power-up or after the self-test query (TST?) is executed. At all other times it is 0. • Bit 6 (service request) is set when the interrupt request logic of the switch detects a reason to generate a service request interrupt on the GPIB interface. -
Page 36: Sending Commands
equipped with a National Instruments GPIB interface board, with National Instruments Universal Language Interface drivers loaded. The commands that control the GPIB are similar to Hewlett Packard HP Basic commands. Most other controller board manufacturers provide basic output and input statements for communicating messages to a GPIB instrument. Before using any of these samples, ensure that the GPIB address is set to 7, the interface command set is SB, the ULI.EXE driver is loaded, and the switch is connected to the computer via a GPIB cable. -
Page 37: Generating A Service Request Interrupt
WEND PRINT sr ' print final value of sr Generating a Service Request Interrupt This example tests the service request interrupt function. It unmasks the settled bit in the SRQ mask register and selects a channel. An interrupt is generated when the switch reaches the channel. -
Page 38: Sending Commands
equipped with a serial port. COM port 2 of the computer is designated as the serial port and is connected to the switch. Before using any of these examples, ensure that the active interface command set is SB. The RS232 interface cannot receive an SRQ interrupt. The RS232C commands that appear in this section do not always show the terminating character <CR>;... -
Page 39: Sc Series Switch Command Set (Scxxx-0Xxx Models)
To change the command set: 1. Press and hold the GPIB ADDR key while the SB switch powers up. The active interface setting is displayed. 2. Press the key to scroll to the required command set, for example, SB, SC, or SX. 3. - Page 40 Table 14: SX Switch Command Set Syntax Function switch to channel n set driver n clear driver n configure drivers with binary code k enable unit to assert SRQ interrupt after completing each command disable SRQ interrupt except when an error occurs remote mode: lock out front panel keys;...