HDC3: SS7 and ATM Controller

For AMC, PMC, PCI and PCIe (Full height, Low-Profile and ExpressModule)

Adax SS7 controller, the HDC3 excels at traditional TDM SS7, High-Speed ATM SS7 and I-TDM.  The HDC3 provides a high-density, high performance solution for signaling and interworking applications and offers unparalleled reliability and excellent price performance ratios. The HDC3 allows customers to satisfy a wide range of requirements with common core architecture, a single software driver, and a common API, saving development time, and providing fast time to market and rapid return on investment.  With one of the highest densities on the market today and a low-power on-board processor that performs many thousands of transactions per second, with minimal load on the host, the HDC maximises the performance of the applications and reduces system costs without compromising reliability.

HDC3 Features

  • 8 software selectable trunks of full E1, T1, or J1 per card*
  • Up to 248 LSL MTP2 links per card with high line utilization*
  • Up to 8 HSL (Q.703 Annex A and ATM AAL5) links per card*
  • Up to 2 Ethernet ports per PCI, PCIe and PCIe ExpressModule card
  • AMC, PMC, PCI and PCIe (Full height, Low-Profile and ExpressModule) board formats with common MTP2 driver and API
  • On-board processor for local MTP2 protocol execution
  • Support for up to 64 VCC’s of broadband SS7 ATM AAL5
  • Support for up to 128 channels of Frame Relay or a combination of 248 channels of HDLC, X.25, LAPB/D/F/V5 protocols

*Low-Profile PCIe (LPe) board offers 4 T1, E1 or J1 trunks; 124 LSL MTP2 links; and 4 HSL MTP2 links


Adax HDC3 datasheet


The Adax HDC3 is ideal for:

  • Signaling Gateways
  • Media Gateway Controllers
  • SGSN, GGSN, MSC, HLR, VLR and BSS Nodes
  • VAS applications such as SMS, Roaming & Billing
  • Test & Measurement applications
  • Simulation & Monitoring Systems