NIPPON TELEGRAPH AND TELEPHONE CORPORATION International Procurement Office; Tokyo Opera City Tower 26F 20-2 Nishi-Shinjuku 3-chome Shinjuku-ku, Tokyo 163-14 Japan

58 -- OPTICAL FIBER IDENTIFIER SOL IPO.09-5015 DUE 090597 POC Point of Contact -- NTT America, Inc., Head Office, 101 Park Avenue, 41st Floor, New York, NY 10178, 212/808-2296 also NTT America, Inc., Pacific and Western Division 700 E. El Camino Real, Suite #200, Mountain View, CA 94040, 650/940-1414 WEB: NTT International Procurement Information Home Page, http://wwwipo.nttinfo.ntt.co.jp. This public notice is to request suppliers to provide NTT with general referential information on similar products or technology prior to procurement of the intended product (mentioned below) by NTT. This public notice is also to request that any suppliers wishing to participate as a subcontractor in the procurement program of this product should declare their intentions to that effect. This public notice is not intended to guarantee public notification of procurement of the product. (1) Name: Optical Fiber Identifier (2) Overview:a. Portable light source This device is portable type and used for optical loss measurement and optical power measurement of optical fiber.The output wavelength emitted from this device shall be 1310-n $B#m (J,1550-n $B#m (J and 1650-n $B#m (J. b. Portable optical power meter This test equipment is portable optical power meter and used for optical loss measurement and optical power measurement of optical fiber.The measurement wavelength emitted from this device shall be 1310-n $B#m (J, 1550-n $B#m (J and 1650-n $B#m (J. c. Optical fiber identifier (Live fiber detector) The optical fiber identifier is used for recognize signals and measure core power without interrupting traffic.The measurement wavelength emitted from this device shall be 1550-n $B#m (J and 1650-n $B#m (J. d. Fiber optic talk set The fiber optic talk set is a handheld unit for full duplex voice communication over 1 or 2 fibers. (3) Contents of RFI: NTT is inviting the following types of information on a product or technology similar to the above-mentioned system. This is not, however, a request for suppliers to provide proprietary and/or confidential information, (1)Technical information Common items -Environment(temperature, humidity) -Power supply -Battery life -Funciton list -Electrical characteristics,Physical characteristics -Optical connector form Items Individual items a. portable light source -The following optical characteristics Output central wavelength,Spectrum half-bandwidth,Output wavefom, Modulationmethod,Optical fiber input power,Temperature stability, Timer stability b. Portable optical power meter -The following optical characteristics Input wavelength,Input waveform,Light power measurement range, Specified error c. Optical fiber identifier (Live fiber detector) -The following optical characteristics Insertion loss(wavelength 1310-n $B#m (J or 1550-n $B#m (J) Minimum reception level(wavelength 1550-n $B#m (J or 1650-n $B#m (J) d. Fiber optic talk set -The following optical characteristics Dynamic range (2)(Budgetary) price -Unit price,Optional component price (3)Standard time of delivery after ordering (4)Sales records (in Japan and in other countries) (5)Others guarantee system after delivery training system after delivery (4) Request for Declaration of the Intention of Participating as a Subcontractor: Any suppliers wishing to participate as a subcontractor in the product procurement program of NTT, are requested to supply NTT with the information listed below. After preparing a list of supplied information, NTT will provide the list to suppliers who wish to be provided with it, to those who have responded to the request for supply of the information listed and to those who have received the PROCUREMENT DOCUMENTATION relating to procurement of the product. NTT, however, will undertake no responsibilies for any outcomes arising from supply of the list, (i)Name of supplier, (ii)Place of contact (Address, name of the person in charge, telephone number, and fascimile number). (5) Deadline of submission of materials and comments: 3:00 PM, September 5, 1997 (Mail must arrive no later than the above date). (6) Language: Japanese or English***** (0217)

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