The HPE JG428A is a high-performance 1-Port OC-3/STM-1 CPOS HMIM Module, designed for use with HP MSR series routers. Offered by Chicago Computer Supply, this module provides essential optical interface capabilities for modern enterprise and carrier-grade networks.
Engineered to deliver up to 155.52 Mbps over optical fiber, the Product ID JG428A supports OC-3 (North America) and STM-1 (international) standards. This ensures seamless compatibility with SONET and SDH infrastructures, making it an ideal solution for environments that require high-bandwidth, low-latency transmission for critical data and voice applications. Its CPOS (Circuit Packet over SONET/SDH) capability allows efficient packet-based transport over legacy time-division multiplexing (TDM) architectures, bridging traditional networking with modern IP-focused environments.
The module adheres to the Half-Height Multifunction Interface Module (HMIM) form factor, measuring approximately 3.6″ × 12.8″ × 16.3″ and weighing around 2.4 lb. With its compact design, it fits easily into MSR router slots without consuming excessive space. Despite its small footprint, it maintains robust performance for demanding network operations.
When sourced through Chicago Computer Supply, the HPE JG428A is offered in brand-new, factory-sealed condition and comes with the full HPE manufacturer's warranty. This ensures end-to-end reliability and user confidence in mission-critical deployments.
Enterprises and service providers needing high-speed optical backhaul or aggregation will find the JG428A particularly effective. It supports seamless integration with SONET/SDH transport networks while providing packet-friendly interfaces ideal for MPLS, voice, or data services.
In summary, the HPE JG428A delivers high-speed OC-3/STM-1 connectivity, CPOS packet handling, and compact form factor—all backed by support from Chicago Computer Supply. It stands out as a reliable optical interface module for organizations aiming to blend legacy and modern networking strategies with confidence.
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