VSC9135YHM-01

Specialized Overview

The VSC9135YHM-01 is a 2.5 Gbps multi-service high order/low order virtual concatenation mapper designed for SONET/SDH and Metro Ethernet applications. It supports 128 independent channels using GFP and HDLC protocols, enabling efficient bandwidth utilization through hitless rate adaptation. The device features OIF compliant SPI-3 (32-bit) and SPI-4.2 (16-bit) system packet interfaces, alongside dual-rate STS-48/STM-16 or STS-12/STM-4 backplane interfaces. Power dissipation is rated at 7W under LOVCAT48 conditions. It operates within the VersaCAT family to provision data services across WAN transport infrastructure.

Specialized Feature Summary

• Supports concurrent legacy contiguous concatenation and virtual concatenation within the same device.
• Includes standards-compliant hitless LCAS implementation with application code.
• Encapsulates received data from SPI-3/4.2 interfaces with a GFP header.
• Allows direct connection to existing SONET/SDH TDM backplanes without external devices.

Specialized Applications

• SONET/SDH Multi-service Provisional Platforms (MSPPs)
• Next generation SONET/SDH Metro Ethernet systems
• Resiliant Packaging Ring (RPR) applications

Specialized Procurement Notes

Verify the specific ordering suffix YHM against official manufacturer documentation to confirm package type and temperature range. Confirm current availability status as product lifecycles may change. Ensure compatibility with existing HOVCAT designs if migrating from previous generations. Request updated software drivers and diagnostic tools from the supplier to accelerate development time.

Specialized Selection Notes

Select this component when designing systems requiring dense termination of multiple network endpoints in a single device. Choose the VSC9135 over higher-capacity variants like the VSC9138 when 2.5 Gbps bandwidth is sufficient. Consider pin compatibility with existing HOVCAT products for easier design migration. Evaluate power dissipation requirements against the 7W specification for thermal management.

Specialized Part Context

This component belongs to the VersaCAT family, which adapts Ethernet technology to WAN environments. It serves as a third-generation VC Mapper device, building upon successful hardware and software platforms. The family includes various mappers and multi-protocol WAN MACs to support Virtual Concatenation and Layer 2 aggregation features for optimizing bandwidth utilization.

Specialized Replacement Considerations

The VSC9138 is a related pin-compatible device offering 10 Gbps bandwidth. Verify functional equivalence if substituting with other HOVCAT family members. Check for updated software drivers when replacing older versions. Ensure interface compatibility with SPI-3 and SPI-4.2 protocols during substitution.