Cisco WS-X4K-CLOCK-E Catalyst 4507R-E/4510R-E Internal Clock Module

Overview

The Cisco WS-X4K-CLOCK-E is an internal clock module designed specifically for the Catalyst 4507R-E and 4510R-E chassis. This compact, hot-swapable unit provides highly accurate timing for network synchronization, ensuring that time-sensitive applications such as voice, video, and data services operate with optimal performance. By integrating a reliable clock source directly into the chassis, the module eliminates the need for external timing devices and simplifies network design.

Key Features

• High precision timing with sub-microsecond accuracy
• Supports IEEE 1588 Precision Time Protocol (PTP) for network-wide synchronization
• Hot-swap capable for zero-downtime installation and replacement
• Redundant clock operation when paired with a second module for increased reliability
• Provides 1 pulse per second (1 PPS) and 10 MHz reference outputs
• Compact form factor fits within the existing chassis without additional rack space

Technical Specifications

• Model number: WS-X4K-CLOCK-E
• Compatible chassis: Catalyst 4507R-E, Catalyst 4510R-E
• Power consumption: less than 5 watts
• Operating temperature range: 0 deg to 55 deg Celsius
• Input voltage: 12 VDC
• Output interfaces: 1 PPS (TTL), 10 MHz (LVDS)
• Synchronization accuracy: +/- 1 microsecond
• Supports both master and slave clock modes

Applications

• Enterprise voice over IP (VoIP) deployments that require precise call timing
• Video streaming and conferencing solutions where frame alignment is critical
• Data center environments that use time-sensitive networking (TSN) for high-frequency trading
• Industrial automation networks that rely on synchronized sensor data
• Service provider edge routers that need accurate timestamping for traffic analysis

By installing the Cisco WS-X4K-CLOCK-E internal clock module, network administrators can achieve reliable, high-precision timing across their infrastructure while reducing hardware complexity and operational costs.