ESR-4OC3-CHSTM1 Cisco 4-Ports OC3 Channelize STM1 SDH SM Line Card

The ESR‑4OC3‑CHSTM1 is a high‑performance Cisco line card engineered to deliver seamless, scalable connectivity for demanding enterprise and carrier networks. Designed for 4‑port OC3 channelization and STM1 SDH SM integration, it provides robust, low‑latency service delivery while maintaining exceptional reliability and uptime. Its compact, rack‑mount form factor supports easy installation and rapid deployment, enabling network operators to expand capacity without disrupting existing infrastructure. With advanced error‑correction and traffic‑management capabilities, the card ensures consistent quality of service across all channels, making it an ideal solution for high‑availability environments that require dependable, high‑throughput performance.