Description:
The 90-4905-16 E is a telecom interface card/module originally manufactured by Newbridge Networks, a Canadian networking company later acquired by Alcatel. This module is part of the 90-4905-xx product group, which is used in high-speed WAN transport and switching systems such as the MainStreet series, the 7470 ATM/Switch platform, and the 36170 MainStreetXpress multiservice systems.
Key Features
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Manufacturer: Newbridge Networks (legacy telecom OEM; later part of Alcatel)
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Part Number: 90-4905-16 E
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Product Type: OC3-2 IR Interface Module / Pack
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Platform Family: Newbridge MainStreet / 36170 / 7470 series systems
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Application: Telecom high-speed WAN interface support (OC3 to 2 Mbps)
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Typical Deployment: Installed in chassis/backplane of multiservice or transport network equipment
Technical Overview
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Interface Type: OC3 (155 Mbps) to 2 Mbps intermediate rate handles high-speed optical and PDH legacy networks.
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Function Role: Provides optical network termination and rate conversion between SONET/SDH OC-3 trunk interfaces and lower-rate connections (e.g., 2 Mbps).
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Compatibility: Works in modular telecom systems that accept 90-4905 series OC3 interface boards.
