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Article: Modem chip set eases transition between quad TI/E1 channels in a fiber link.(Brief Article)(Product Announcement)
- Article from:
- EDN
- Article date:
- August 5, 1999
- Author:
CopyrightCOPYRIGHT 1999 Reed Business Information, Inc. (US). This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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With the two-IC ACS406 modem chip set, you can combine four independent E1/TI channels and achieve synchronous transmission over a single optical fiber and single optical wavelength at E2 data rates to 8.448 Mbps (four E1 channels) or T2 rates to 6.312 Mbps (four T1 channels). Comprised of the predominantly analog ACS9010, which comes in a 44-pin TQFP, and the mostly digital ACS4060, which comes in a 100-pin TQFP, the chip set supports links as long as 25 km at full bandwidth, achieving bit-error rates lower than [10.sup.-10] Applications for this chip set are fiber-in-the-loop installations for business and industrial parks, campus sites, and cell-phone base stations.
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