CM-6900-MIL Series

Form Factor:
Category: Rugged Switches
Supplier: On Time Networks
Application(s): Airborne

The CloudberryMIL CM-6900 Series - Rugged up to 52-Port Managed Gigabit/10Gigabit Ethernet Switch with optional PTP GMC, TC/SC and Router capability for Aerospace and Defense applications


The new Cloudberry CM-6900 Series is a commercial off the shelf (COTS), fully managed Layer 2/3 Ethernet switch with optional embedded Cisco 5921 Embedded Services Router (ESR) IOS and network time server capability (IEEE 1588 PTP, NTP, IRIG, 1PPS), in a rugged housing. It is specifically designed to provide reliable, high-performance connectivity for extremely demanding size, weight and power (SWaP) constraints in harsh demanding environments (e.g. high altitude, extreme shock & vibration, extended temperatures, humidity, dust & water exposure, noisy EMI, dirty power).

The CM-6900 is an ideal solution for forward-fit and retrofit applications. It provides a technology advantage for deploying data, video and voice services virtually anywhere LAN/WAN connectivity may be required, especially in mobile, airborne, ground, manned or unmanned vehicle and sensor applications. With routing speeds of up to 500 mbps for the Cisco 5921 ESR package or full wire speeds for OnTime Networks’ own router package, the unit offers a powerful network solution.

With up to 48 gigabit Ethernet and four 10 gigabit Ethernet ports, the CM-6900 provides a robust network routing architecture with the performance, security, quality of service (QoS), high availability and manageability that customers expect from Cisco IOS-based technologies. The familiar Cisco IOS router software and the Cisco-like CLI interface on the switch management side minimize training requirements and provide extensive support for IPv4/IPv6 routing protocols, IP multicasting, Radio Aware Routing (RAR), Dynamic Link Exchange Protocol (DLEP), remote VoIP, Firewall/IPS/IDS, Mobile Ad Hoc Networking (MANET) and Mobile IP routing for connectivity in Comms on the Move (COTM) applications.

Additional information about the Cisco 5921 Embedded Services Router (ESR) IOS can be found here:

Its modular rugged design, enclosed in a military rugged 19” housing, requires no active cooling and provides a number of connector options. The unit feature soptional military-grade power supply for aircraft (MIL-STD-704F) and ground (MIL-STD-1275D) vehicle use, as well as MIL-STD-461F EMI/EMC filtering.

Its performance is optimized for a large numbers of IP-enabled embedded devices, such as computers, cameras, sensors, and command-and-control equipment, deployed in manned and unmanned system platforms at the network edge.

The CM-6900 supports the latest generation of IPv6 switching, allowing it to meet the most challenging requirements for next generation DoD networks. IPv6 provides improved network security and reliability, while support for more network addresses allows for a greater number of interconnected devices. Additional management and configuration features include quality of service (QoS) prioritization, VLANs, LAG, SNMP, RSTP, VRRP, IGMP and traffic policing, providing customers the flexibility to meet their unique networking requirements.

Optionally, the CM-6900-MIL can also be a reliable and accurate PTP Grand Master Clock (GMC) or Transparent Clock/Slave Clock (TC/SC) fulfilling IEEE 1588 STD 2002 (v1) and IEEE 1588 STD 2008 (v2). Both PTPv1 and PTPv2 Slave clocks can co-exist in the same network by using the PTP version translator feature of the CM-6900-MIL platform. The switch can also act as a NTP Network Time Server (NTS) and provide GPS emulation output both when enabled as a GMC and when operating as a TC/SC. GPS emulation means Pulse Per Second (PPS) output signals via dedicated connectors (TTL)as well as NMEA telegrams via the network connection or RS232 Further, the unit can distribute multiple IRIG-B (AM/DC) and 10MHz outputs via dedicated connectors on the front of the unit.

This fully managed, Layer 2/3 Gigabit switch provides a powerful set of networking features, including support for IPv4 multicast traffic filtering according to static filters or IGMP snooping, Virtual Local Area Networks (VLANs), port control (speed / mode / statistics, flow control), Quality of Service (QoS) traffic prioritization, Link Aggregation (802.3ad), SNMP v1/v2/v3 management, secure authentication (802.1X, ACLs, Web/CLI), redundancy (RSTP/MSTP) and port mirroring.

The unit can be equipped with a number of different power supply options, from 115-230VAC to 28VDC redundant power input with polarity protection and power hold-up (option) support.

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