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HP JD555B 8 Ports E1 IMA (75ohm) MIM Module Expansion Module
- 8 x E1 IMA (75ohm) ports
- Supports Inverse Multiplexing over ATM (IMA)
- Designed for voice and data aggregation
- Compatible with specific HP modular switch platforms
- Provides TDM circuit connectivity
- Enables integration with legacy telecommunication infrastructure
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Product Overview
The HP JD555B is an 8-port E1 IMA (75ohm) module designed for expansion of HP modular switches. It provides integrated access to E1 circuits, enabling voice and data transmission over TDM networks.
Technical Information
| Product Type | Expansion Module |
| Ports | 8 x E1 IMA (75ohm) |
Additional Specifications
| Technology | Inverse Multiplexing over ATM (IMA) |
| Interface | 75 ohm coaxial |
Product Description
The HP JD555B module is a specialized expansion unit designed to bring E1 connectivity to compatible HP modular switch platforms. It features eight ports that support E1 circuits, utilizing the Inverse Multiplexing over ATM (IMA) protocol. This allows for the aggregation of multiple E1 streams to create higher bandwidth connections, essential for transporting voice and data traffic over traditional Time-Division Multiplexing (TDM) networks. This module is particularly useful for organizations that need to interface with existing telecommunications infrastructure or provide connectivity for voice gateways and PBX systems. The 75-ohm impedance is standard for E1 interfaces in many regions, ensuring compatibility with a wide range of telecommunication equipment. The IMA protocol offers flexibility in bandwidth provisioning by dynamically combining E1 links. By integrating E1 IMA capabilities directly into the modular switch, the JD555B simplifies network design and reduces the need for separate TDM aggregation devices. It enhances the versatility of the HP switch, enabling it to serve as a central point for both packet-switched data and circuit-switched voice and data services. This makes it a valuable component for service providers and large enterprises managing diverse network requirements.
