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Linux AMC modules connect T1/E1/J1 lines

Nov 13, 2008 — by Eric Brown — from the LinuxDevices Archive — 3 views

Performance Technologies (PT) is shipping two communications controllers that use the AMC (advanced mezzanine card) form factor. The Linux-ready AMC304 and AMC305 enable PT's ATCA (AdvancedTCA) and MicroTCA systems to interface with leased T1/E1/J1 lines, while the AMC305 provides time-division multiplexing (TDM) transmission… capability, says PT.

(Click for larger view of the AMC305)

PT says the AMC304 and AMC305 are intended primarily for use with its MTC5070 MicroTCA system (pictured below, at right). They target telecommunications, aerospace, defense, and certain commercial markets, and are capable of running VoIP, wireless, and IP Multi-media Subsystem (IMS) infrastructure applications, says the company.

PT's MTC5070 MicroTCA system
(Click for details)

Like the network equipment provider's AMC122 board announced in September, the AMC304 and AMC305 are supplied with the company's own NexusWare Carrier Grade Linux (CGL) implementation. NexusWare is the only CGL implementation aside from those of Wind River and MontaVista to be registered for the Linux Foundation's CGL 4.0 specification.

The AMC304 and AMC305 are each equipped with a Freescale MPC8560 PowerQUICC III system-on-chip (SoC) clocked to 833MHz, says PT. The modules ship with 128MB of shared SDRAM, upgradable to 1GB, as well as 64MB of 8-bit flash.

The modules offer dual gigabit Ethernet ports, as well as four individually software selectable T1/E1/J1 interfaces on AMC port 4. They also provide PCI Express interfaces clocked to 100MHz, says the company. The modules are identical except that the AMC305 version adds the ability to transmit time-division multiplexing (TDM) telecom traffic to other modules over its iTDM gigabit Ethernet link, says PT.

Offered in a 7.1 x 2.9-inch, mid-size, single AMC.0 form factor, the modules are said to deliver typical power consumption of 20 Watts. Claimed temperature support ranges from 32 to 131 degrees F (0 to 55 deg. C).

AMC modules are used to customize ATCA and MicroTCA systems for particular industries and applications. Both TCA specs, as well as the AMC format, are maintained by PICMG (PCI Industrial Computer Manufacturer's Group), and aim to help NEPs leverage off-the-shelf hardware and create interoperable systems.


The AMC304 and AMC305 modules are available now, with prices undisclosed. More information may be found here.

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