Comtech CX-U Series

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Product Information

  • Type: RAN Optimization
  • Brand: Comtech EF Data
  • SKU: CMT147

Tech Specifications

Datasheet PDF


The CX-U Series brings together a flexible access device and mobile backhaul traffic optimization, offering a variety of backhaul interfaces and transmission options.

The CX-U offers Abis optimization with additional benefits of 2G/3G aggregation, DCME voice trunking optimization, TDM Pseudowire, all over IP, Frame Relay or MLPPP protocol support.

The CX-U products support digital fractional T1/E1, high-speed serial and Ethernet network interfaces with a choice of protocols (Frame Relay, IP/MLPPP) and multiple network backup options. Designed with the utmost reliability in mind, it can support an extended temperature range. Line bypass and optional 100 ms 1+1 hot standby redundancy without service interruption are also available for ultimate availability in challenging remote locations.

The CX-U family is comprised of four products: CX-U 1010, CX-U 1220, CX-U 1240 and CX-U 1280, which can be used in stand-alone mode of operation at hubs or aggregation points, or in conjunction with the CX-U devices located at the remote cell sites.


  • Transparent GSM FR, EFR, HR and AMR codec optimization
  • Supports any data services (GPRS, EDGE, V.110 Fax/Modem)
  • IDLE and silence suppression
  • HDLC signaling frame extraction and forwarding
  • EDGE traffic compression
  • Signaling/voice/data traffic prioritization
  • Transparent support of CDMA-IS95 traffic
  • 3G and CDMA-1X traffic optimization (ATM IDLE cells removal, cell packing, ATM header and payload compression)
  • ATM and TDM Pseudowire over IP
  • SS7 traffic forwarding and optimization (Ater links)
  • End-to-end Abis link continuity check
  • Dynamic Abis map interface auto-configuration
  • Traffic prioritization and 3 level QoS
  • TRX channels usage real-time monitoring

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