User Guide FTB-9100 Optical Switch for FTB-500
Copyright © 2006–2009 EXFO Electro-Optical Engineering Inc. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form, be it electronically, mechanically, or by any other means such as photocopying, recording or otherwise, without the prior written permission of EXFO Electro-Optical Engineering Inc. (EXFO). Information provided by EXFO is believed to be accurate and reliable.
Contents Contents Copyright Information ............................................................................................................ii Certification Information ........................................................................................................ v 1 Introducing the FTB-9100 Optical Switch ................................................... 1 Main Features ....................................................................................................................
Contents B SCPI Command Reference ..........................................................................39 Quick Reference Command Tree ...........................................................................................40 Product-Specific Commands—Description ............................................................................41 Index .................................................................................................................
Certification Information Certification Information F.C.C. Information Electronic test equipment is exempt from Part 15 compliance (FCC) in the United States. However, compliance verification tests are systematically performed on most EXFO equipment. Information Electronic test equipment is subject to the EMC Directive in the European Union. The EN61326 standard prescribes both emission and immunity requirements for laboratory, measurement, and control equipment.
Certification Information DECLARATION OF CONFORMITY Application of Council Directive(s): Manufacturer’s Name: Manufacturer’s Address: Equipment Type/Environment: Trade Name/Model No.: 2006/95/EC - The Low Voltage Directive 2004/108/EC - The EMC Directive And their amendments EXFO Electro-Optical Engineering Inc.
1 Introducing the FTB-9100 Optical Switch Main Features The FTB-9100 Optical Switch provides highly accurate and repeatable fiber-to-fiber switching for the FTB-500 test modules. OPTICAL SWITCH 8 12 4 7 11 3 6 10 2 5 9 1 FTB-9100 COMMON Common port Note: Actual connectors may differ from the illustration.
Introducing the FTB-9100 Optical Switch Basic Switching Principles The FTB-9100 Optical Switch supports local control (via the ToolBox software) and remote control (through GPIB, RS-232, or Ethernet TCP/IP using SCPI commands or the provided LabVIEW drivers). For more information, refer to the FTB-500 user guide. Basic Switching Principles The switch ports of 1 x N optical switches are numbered on the front panel, while the common port is identified as such. These switches are bidirectional.
Introducing the FTB-9100 Optical Switch Typical Application, OTDR Testing Typical Application, OTDR Testing You can use your switch to test several fibers with an OTDR without having to connect and disconnect them before each acquisition. OPTICAL SWITCH SM OTDR Fibers under test 8 12 4 7 11 3 6 10 2 5 9 1 Patchcord FTB-9100 COMMON For more information, refer to the EXFO OTDR user guide.
Introducing the FTB-9100 Optical Switch Conventions Conventions Before using the product described in this manual, you should understand the following conventions: WARNING Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. Do not proceed unless you understand and meet the required conditions. CAUTION Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.
2 Getting Started with Your Optical Switch CAUTION Your Optical Switch contains sensitive precision optical components. To ensure reliable, long-term service, observe proper handling and operating instructions. At no time should the module be subject to shock or impact. Inserting and Removing Test Modules CAUTION Never insert or remove a module while the FTB-500 is turned on. This will result in immediate and irreparable damage to both the module and unit.
Getting Started with Your Optical Switch Inserting and Removing Test Modules 3. Take the module and place it so that the connector pins are at the back, as explained and shown below. Identification sticker must be facing up and connector pins at the right of the retaining screw hole. Retaining screw hole at the back Connector pins at the back FTB-500 right panel Identification sticker facing up Protruding edges on top 4.
Getting Started with Your Optical Switch Inserting and Removing Test Modules 7. While applying slight pressure to the module, turn the retaining screw clockwise until it is tightened. This will secure the module into its “seated” position. Turn retaining screw knob clockwise FTB-500 left panel When you turn on the unit, the startup sequence will automatically detect the module.
Getting Started with Your Optical Switch Inserting and Removing Test Modules To remove a module from the FTB-500: 1. Exit ToolBox and turn off your unit. 2. Position the FTB-500 so that the left panel is facing you. 3. Turn the retaining screw counterclockwise until it stops. The module will be slowly released from the slot. Turn retaining screw knob(s) counterclockwise FTB-500 left panel 4. Place the FTB-500 so that the right panel is facing you.
Getting Started with Your Optical Switch Inserting and Removing Test Modules 5. Hold the module by its sides or by the handle (NOT by the connector) and pull it out.
Getting Started with Your Optical Switch Starting the Optical Switch Application Starting the Optical Switch Application Your FTB-9100 Optical Switch module can be configured and controlled from its dedicated ToolBox application. Note: For details about ToolBox, refer to the FTB-500 user guide. To start the application: 1. From the main window, select the module to use. It will turn blue to indicate that it is highlighted. 2. Click the corresponding button in the Module Applications box.
Getting Started with Your Optical Switch Starting the Optical Switch Application The main window (shown below) contains all the commands required to control the Optical Switch: Title bar Data display Function bar Control Center Status bar Note: You can also control the switch directly from ToolBox’s OTDR application, as explained in the OTDR user guide.
Getting Started with Your Optical Switch Starting the Optical Switch Application Data Display Common or input port Optical signal path Output port (including port number) Status Bar The status bar, located at the bottom of the main window, identifies the operational status of the FTB-9100 Optical Switch. Control mode Local: Module controlled locally only. Remote: Module controlled remotely, but local commands can also be used (some products only). Lockout: Module controlled remotely only.
Getting Started with Your Optical Switch Exiting the Application Exiting the Application Closing any application that is not currently being used helps freeing system memory. To close the application from the main window: Click in the top right corner of the main window. OR Click the Exit button located at the bottom of the function bar.
3 Operating the Optical Switch Before using the FTB-9100 Optical Switch in a test setup, you must first connect the ports to other test components and select a switching configuration. Note: You can configure your switch before connecting it to your test setup. CAUTION Your Optical Switch contains sensitive precision optical components. To ensure reliable, long-term service, observe proper handling and operating instructions. At no time should the module be subject to shock or impact.
Operating the Optical Switch Installing the EXFO Universal Interface (EUI) Installing the EXFO Universal Interface (EUI) The EUI fixed baseplate is available for connectors with angled (APC) or non-angled (UPC) polishing. A green border around the baseplate indicates that it is for APC-type connectors. Bare metal (or blue border) indicates UPC option Green border indicates APC option To install an EUI connector adapter onto the EUI baseplate: 1.
Operating the Optical Switch Cleaning and Connecting Optical Fibers Cleaning and Connecting Optical Fibers IMPORTANT To ensure maximum power and to avoid erroneous readings: ³ Always inspect fiber ends and make sure that they are clean as explained below before inserting them into the port. EXFO is not responsible for damage or errors caused by bad fiber cleaning or handling. ³ Ensure that your patchcord has appropriate connectors. Joining mismatched connectors will damage the ferrules.
Operating the Optical Switch Cleaning and Connecting Optical Fibers 3. Carefully align the connector and port to prevent the fiber end from touching the outside of the port or rubbing against other surfaces. If your connector features a key, ensure that it is fully fitted into the port’s corresponding notch. 4. Push the connector in so that the fiber-optic cable is firmly in place, thus ensuring adequate contact.
Operating the Optical Switch Optimizing the Application for Repeatability Optimizing the Application for Repeatability The optimization for repeatability ensures better accuracy in positioning the light path when switching. ³ With optimization activated, every time a switching occurs, the switch mechanism returns to the “no continuity” (Off) position before aligning to a new channel position. This option provides better precision, but with slower switching.
Operating the Optical Switch Selecting Configurations Selecting Configurations The different configurations available for your switch allow you to access a number of switch possibilities. To select configurations: 1. Set the Continuity switch to the On or Off position, depending on whether or not you want the light signal to pass through the optical switch. 2. In the Output Port Selection panel, select the port through which you want to direct the light.
Operating the Optical Switch Saving and Recalling Configurations Saving and Recalling Configurations Once you have set the FTB-9100 Optical Switch parameters, you can save your custom configuration and recall it at any time. You can also recall the factory-defined settings. Saved configurations include all parameters set in the Control Center (Instrument function tab) and in the Settings function tab (if present). To save a configuration: 1. Select the Configuration function tab.
Operating the Optical Switch Saving and Recalling Configurations To recall a configuration: 1. Select the Configuration function tab. 2. Click Open. 3. Select the configuration file you want to recall and confirm your action. You will return to your application and the new parameters will be set. To revert to factory settings: 1. Select the Configuration function tab. 2. Click the Reset Module to Factory Settings button.
4 Maintenance To help ensure long, trouble-free operation: ³ Always inspect fiber-optic connectors before using them and clean them if necessary. ³ Keep the unit free of dust. ³ Clean the unit casing and front panel with a cloth slightly dampened with water. ³ Store unit at room temperature in a clean and dry area. Keep the unit out of direct sunlight. ³ Avoid high humidity or significant temperature fluctuations. ³ Avoid unnecessary shocks and vibrations.
Maintenance Cleaning Fixed Connectors Cleaning Fixed Connectors Regular cleaning of connectors will help maintain optimum performance. Do not try to disassemble the unit. Doing so would break the connector. To clean fixed connectors: 1. Fold a lint-free wiping cloth in four to form a square. 2. Moisten the center of the lint-free wiping cloth with only one drop of isopropyl alcohol. IMPORTANT Alcohol may leave traces if used abundantly.
Maintenance Cleaning Fixed Connectors 6. Moisten a cleaning tip (2.5 mm tip) with only one drop of isopropyl alcohol. IMPORTANT Alcohol may leave traces if used abundantly. Avoid contact between the tip of the bottle and the cleaning tip, and do not use bottles that distribute too much alcohol at a time. 7. Slowly insert the cleaning tip into the connector until it reaches the ferrule inside (a slow clockwise rotating movement may help). 8 7 9 8. Gently turn the cleaning tip one full turn. 9.
Maintenance Cleaning EUI Connectors Cleaning EUI Connectors Regular cleaning of EUI connectors will help maintain optimum performance. There is no need to disassemble the unit. IMPORTANT If any damage occurs to internal connectors, the module casing will have to be opened and a new calibration will be required. To clean EUI connectors: 1. Remove the EUI from the instrument to expose the connector baseplate and ferrule. Turn Pull Push 2. Moisten a 2.
Maintenance Cleaning EUI Connectors 5. Repeat steps 3 to 4 with a dry cleaning tip. Note: Make sure you don’t touch the soft end of the cleaning tip. 6. Clean the ferrule in the connector port as follows: 6a. Deposit one drop of isopropyl alcohol on a lint-free wiping cloth. IMPORTANT Isopropyl alcohol may leave residues if used abundantly or left to evaporate (about 10 seconds). Avoid contact between the tip of the bottle and the wiping cloth, and dry the surface quickly. 6b.
Maintenance Recycling and Disposal (Applies to European Union Only) Recycling and Disposal (Applies to European Union Only) Recycle or dispose of your product (including electric and electronic accessories) properly, in accordance with local regulations. Do not dispose of it in ordinary garbage receptacles. This equipment was sold after August 13, 2005 (as identified by the black rectangle).
5 Troubleshooting Solving Common Problems Problem Possible cause Insertion loss higher than Dirty optical expected. connectors. Poor repeatability. Optical Switch Clean all optical connectors. Improper wavelength selected on other instruments Switch to the correct wavelength on all instruments being used. Optical source is unstable. Wait for source to stabilize. — No optical continuity. Recommended action Switch is off. Select Optimize for Repeatability. Set the Continuity switch to On.
Troubleshooting Obtaining Online Help Obtaining Online Help An online version of the FTB-9100 Optical Switch user guide is conveniently available at all times from the application. Note: You will also find a printable PDF version on your installation CD. To access online help: Click the Help button on the function bar.
Troubleshooting Contacting the Technical Support Group Contacting the Technical Support Group To obtain after-sales service or technical support for this product, contact EXFO at one of the following numbers. The Technical Support Group is available to take your calls from Monday to Friday, 8:00 a.m. to 7:00 p.m. (Eastern Time in North America). For detailed information about technical support, visit the EXFO Web site at www.exfo.com.
Troubleshooting Transportation You may also be requested to provide software and module version numbers. This information, as well as technical support contact information, can be found in the About function tab. ³ Select the Technical Support tab to view phone numbers and active Internet links to EXFO’s Technical Support Group. Use these links to send an information request by e-mail or to access EXFO’s web site.
6 Warranty General Information EXFO Electro-Optical Engineering Inc. (EXFO) warrants this equipment against defects in material and workmanship for a period of one year from the date of original shipment. EXFO also warrants that this equipment will meet applicable specifications under normal use.
Warranty Liability Liability EXFO shall not be liable for damages resulting from the use of the product, nor shall be responsible for any failure in the performance of other items to which the product is connected or the operation of any system of which the product may be a part. EXFO shall not be liable for damages resulting from improper usage or unauthorized modification of the product, its accompanying accessories and software.
Warranty Service and Repairs Service and Repairs EXFO commits to providing product service and repair for five years following the date of purchase. To send any equipment for service or repair: 1. Call one of EXFO’s authorized service centers (see EXFO Service Centers Worldwide on page 36). Support personnel will determine if the equipment requires service, repair, or calibration. 2.
Warranty EXFO Service Centers Worldwide EXFO Service Centers Worldwide If your product requires servicing, contact your nearest authorized service center. EXFO Headquarters Service Center 400 Godin Avenue Quebec (Quebec) G1M 2K2 CANADA EXFO Europe Service Center Omega Enterprise Park, Electron Way Chandlers Ford, Hampshire S053 4SE ENGLAND EXFO China Service Center/ Beijing OSIC Beijing New Century Hotel Office Tower, Room 1754-1755 No. 6 Southern Capital Gym Road Beijing 100044 P. R.
A Technical Specifications IMPORTANT The following technical specifications can change without notice. The information presented in this section is provided as a reference only. To obtain this product’s most recent technical specifications, visit the EXFO Web site at www.exfo.com.
B SCPI Command Reference This appendix presents detailed information on the commands and queries supplied with your FTB-9100 Optical Switch. IMPORTANT Since the FTB-500 can house many instruments, you must explicitly specify which instrument you want to remotely control. You must add the following mnemonic at the beginning of any command or query that you send to an instrument: LINStrument: where corresponds to the identification number of the instrument.
SCPI Command Reference Quick Reference Command Tree Quick Reference Command Tree Command ROUTe[1..n] Parameter(s) P.
SCPI Command Reference Product-Specific Commands—Description Product-Specific Commands—Description :ROUTe[1..n]:CLOSe Description This command positions the optical switch to the reset position. In this position, there is no optical continuity. *RST has no effect on this command. Optical Switch Syntax :ROUTe[1..n]:CLOSe Parameter(s) None Example(s) ROUT:CLOSE Notes For all switches except: 1x2, 2x2, and 2x4. See Also ROUTe[1..n]:OPEN ROUTe[1..
SCPI Command Reference Product-Specific Commands—Description :ROUTe[1..n]:OPEN Description This command makes the switch change from the reset position (no optical continuity) to the channel position in effect when the switch was turned off. *RST has no effect on this command. 42 Syntax :ROUTe[1..n]:OPEN Parameter(s) None Example(s) ROUT:OPEN Notes For all switches except: 1x2, 2x2, and 2x4. See Also ROUTe[1..n]:OPEN ROUTe[1..
SCPI Command Reference Product-Specific Commands—Description :ROUTe[1..n]:OPEN:STATe? Description This query returns a value indicating whether the switch is optically open or closed. On *RST, the value of this setting is OFF. Syntax :ROUTe[1..n]:OPEN:STATe? Parameter(s) None Response Syntax Response(s) OpticalContinuity: The response data syntax for is defined as a element.
SCPI Command Reference Product-Specific Commands—Description :ROUTe[1..n]:PATH:CATalog? Description This query returns a value indicating the type of switch in use (e.g. 1x2, 1x4, 1x12, 1x16, 1x 32, 2x2 or 2x4). *RST has no effect on this command. Syntax :ROUTe[1..n]:PATH:CATalog? Parameter(s) None Response Syntax Response(s) Type: The response data syntax for is defined as a element.
SCPI Command Reference Product-Specific Commands—Description :ROUTe[1..n]:SCAN Description This command sets the switch to a specific channel. On *RST, the selected output channel depends on the switch configuration: a) For 1xN switch configuration: Output 1. b) For 2x4 switch configuration: no continuity for both Input 1 and Input 2. c) For 2x2 switch configuration: BYPASS state. Syntax :ROUTe[1..
SCPI Command Reference Product-Specific Commands—Description :ROUTe[1..n]:SCAN 2, means Input 1 is connected to Output 1 and Input 2 is connected to Output 2. 3, means Input 1 is connected to Output 2 and Input 2 is connected to Output 3. 4, means Input 1 is connected to Output 3 and Input 2 is connected to Output 4. 5, means Input 1 is connected to Output 4 and Input 2 has no continuity. c) For a 2x2 switch, a number, 1 or 2, where: 1, means BYPASS state. 2, means INSERT state.
SCPI Command Reference Product-Specific Commands—Description :ROUTe[1..n]:SCAN? Description This query returns a value indicating the current switch position. On *RST, the selected output channel depends on the switch configuration: a) For 1xN switch configuration: Output 1. b) For 2x4 switch configuration: no continuity for both Input 1 and Input 2. c) For 2x2 switch configuration: BYPASS state. Syntax :ROUTe[1..
SCPI Command Reference Product-Specific Commands—Description :ROUTe[1..n]:SCAN? 2, means Input 1 is connected to Output 1 and Input 2 is connected to Output 2. 3, means Input 1 is connected to Output 2 and Input 2 is connected to Output 3. 4, means Input 1 is connected to Output 3 and Input 2 is connected to Output 4. 5, means Input 1 is connected to Output 4 and Input 2 has no continuity. c) For a 2x2 switch, a number, 1 or 2, where: 1, means BYPASS state. 2, means INSERT state.
SCPI Command Reference Product-Specific Commands—Description :ROUTe[1..n]:SCAN:ADJust Description This command makes the switch mechanism return to a reference position before aligning to the current position. This command is an event and has no associated *RST condition or query form. Optical Switch Syntax :ROUTe[1..n]:SCAN:ADJust Parameter(s) None Example(s) ROUT:SCAN:ADJ See Also ROUTe[1..n]:SCAN:ADJust:AUTO ROUTe[1..
SCPI Command Reference Product-Specific Commands—Description :ROUTe[1..n]:SCAN:ADJust:AUTO Description This command sets the option. When this option is selected, the switch mechanism returns to a reference position before aligning to a new position. This ensures optimum repeatability. When this option is not selected, the switch mechanism goes directly to the new channel position. This provides faster switching times, but less repeatability.
SCPI Command Reference Product-Specific Commands—Description :ROUTe[1..n]:SCAN:ADJust:AUTO Example(s) ROUT:SCAN:ADJ:AUTO 0 ROUT:SCAN:ADJ:AUTO? returns 0 (optimization for repeatability is not selected). ROUT:SCAN:ADJ:AUTO 1 ROUT:SCAN:ADJ:AUTO? returns 1 (optimization for repeatability is selected). Optical Switch Notes For all switches except: 1x2 and 2x2. See Also ROUTe[1..n]:SCAN:ADJust ROUTe[1..
SCPI Command Reference Product-Specific Commands—Description :ROUTe[1..n]:SCAN:ADJust:AUTO? Description This query returns the current value of the option. When this option is selected, the switch mechanism returns to a reference position before aligning to a new position. This ensures optimum repeatability. When this option is not selected, the switch mechanism goes directly to the new channel position. This provides faster switching times, but less repeatability.
SCPI Command Reference Product-Specific Commands—Description :ROUTe[1..n]:SCAN:ADJust:AUTO? The response represents the current state of the option, where: 1, option is selected. 0, option is not selected. Example(s) ROUT:SCAN:ADJ:AUTO 0 ROUT:SCAN:ADJ:AUTO? returns 0 (optimization for repeatability is not selected).
SCPI Command Reference Product-Specific Commands—Description :ROUTe[1..n]:SCAN:NEXT Description This command moves the switch to the next position. This command is an event and has no associated *RST condition or query form. 54 Syntax :ROUTe[1..n]:SCAN:NEXT Parameter(s) None Example(s) ROUT:SCAN 1 ROUT:SCAN:NEXT ROUT:SCAN? returns 2 See Also ROUTe[1..n]:SCAN ROUTe[1..n]:SCAN? ROUTe[1..
SCPI Command Reference Product-Specific Commands—Description :ROUTe[1..n]:SCAN:PREV Description This command moves the switch to its previous position. This command is an event and has no associated *RST condition or query form. Optical Switch Syntax :ROUTe[1..n]:SCAN:PREV Parameter(s) None Example(s) ROUT:SCAN 2 ROUT:SCAN:PREV ROUT:SCAN? returns 1 See Also ROUTe[1..n]:SCAN ROUTe[1..n]:SCAN? ROUTe[1..
SCPI Command Reference Product-Specific Commands—Description :ROUTe[1..n]:SCAN:SYNChronous Description This command enables/disables the switch to change position synchronously or not. Syntax :ROUTe[1..n]:SCAN:SYNChronous Parameter(s) Synchronous: The program data syntax for is defined as a element. The special forms ON and OFF are accepted on input for increased readability. ON corresponds to 1 and OFF corresponds to 0.
SCPI Command Reference Product-Specific Commands—Description :ROUTe[1..n]:SCAN:SYNChronous? Description This query returns a value indicating whether the switch is changing position synchronously or not. On *RST, the value of this setting is ON. Syntax :ROUTe[1..n]:SCAN:SYNChronous? Parameter(s) None Response Syntax Response(s) Synchronous: The response data syntax for is defined as a element.
SCPI Command Reference Product-Specific Commands—Description :SNUMber? Description This query returns a value indicating the module's serial number This command is an event and has no associated *RST condition or query form. Syntax :SNUMber? Parameter(s) None Response Syntax Response(s) SerialNumber: The response data syntax for is defined as a element. The response represents a string containing the modules serial number.
SCPI Command Reference Product-Specific Commands—Description :STATus? Description This query returns a value indicating the status of the switch (READY, BUSY, etc.) This command is an event and has no associated *RST condition or query form. Syntax :STATus? Parameter(s) None Response Syntax Response(s) Status: The response data syntax for is defined as a element.
Index Index A About function tab ..................................... 32 after-sales service ........................................ 31 application contacting EXFO support from .............. 32 exiting ................................................... 13 main window description ...................... 11 setting up .............................................. 15 starting, single-module.......................... 10 see also optical switch B bidirectional optical switch ...........................
Index M P main window, application........................... 11 maintenance EUI connectors....................................... 26 fixed connectors .................................... 24 front panel ............................................ 23 general information............................... 23 model, optical switch .................................. 20 model. see configurations module detection ................................................. 7 front panel description .........................
Index T technical specifications................................ 37 technical support .................................. 31, 32 temperature for storage.............................. 23 transportation requirements ................. 23, 32 U user guide. see online user guide W warranty certification ........................................... 34 exclusions .............................................. 34 general .................................................. 33 liability...............................
NOTICE 通告 CHINESE REGULATION ON RESTRICTION OF HAZARDOUS SUBSTANCES 中国关于危害物质限制的规定 NAMES AND CONTENTS OF THE TOXIC OR HAZARDOUS SUBSTANCES OR ELEMENTS CONTAINED IN THIS EXFO PRODUCT 包含在本 EXFO 产品中的有毒有害物质或元素的名称和含量 O X Indicates that this toxic or hazardous substance contained in all of the homogeneous materials for this part is below the limit requirement in SJ/T11363-2006 表示该有毒有害物质在该部件所有均质材料中的含量均在 SJ/T11363-2006 标准规定的 限量要求以下。 Indicates that this toxic or hazardous substance contained in at least one of th
MARKING REQUIREMENTS 标注要求 Product Environmental protection use period (years) Logo 产品 环境保护使用期限 ( 年 ) 标志 This Exfo product 本 EXFO 产品 Batterya 电池 a a. If applicable.
P/N: 1055208 www.EXFO.com · info@exfo.com CORPORATE HEADQUARTERS 400 Godin Avenue Quebec (Quebec) G1M 2K2 CANADA Tel.: 1 418 683-0211 · Fax: 1 418 683-2170 EXFO AMERICA 3701 Plano Parkway, Suite 160 Plano TX, 75075 USA Tel.: 1 972 907-1505 · Fax: 1 972 836-0164 EXFO EUROPE Omega Enterprise Park, Electron Way Chandlers Ford, Hampshire S053 4SE ENGLAND Tel.: +44 2380 246810 · Fax: +44 2380 246801 EXFO ASIA-PACIFIC 151 Chin Swee Road #03-29, Manhattan House SINGAPORE 169876 Tel.