CompactPCI Remote-Access Card Delivers True Universal Port Capability

June 12, 2000
To some, universal port functionality means that each port must be configured ahead of time for its particular application. Not so with the MTN5000 CompactPCI remote-access card. Its manufacturer, Mapletree Networks, says that it is the first...

To some, universal port functionality means that each port must be configured ahead of time for its particular application. Not so with the MTN5000 CompactPCI remote-access card. Its manufacturer, Mapletree Networks, says that it is the first CompactPCI remote-access card for service-provider and carrier-class OEMs to offer universal-port functionality. Voice, fax, or data calls can be connected to any port without any prior configuration.

Based on the company's UniPorte architecture, the MTN5000 provides 168 56-kbit/ISDN remote-access ports. According to Mapletree, this is over twice as many as its competitors can supply. Each port can be dynamically configured to handle a wide variety of incoming subscriber calls, including V.90 56K, Basic Rate ISDN, fax over IP (FoIP), and voice over IP (VoIP).

The MTN5000 fully complies with the PICMG Hot Plug specification. It's ideal for high-availability telecommunication applications where users need to insert and remove remote-access cards while the system is running.

Equipped with 96 to 168 universal access ports, it can process any type of dial-up access traffic. It also supports T1/PRI and E1/PRI WAN interfaces. A single MTN5000 card provides enough ports to accommodate seven T1 lines, while a CompactPCI chassis equipped with four MTN5000s has enough ports for a full T3 line.

The card supports ITU-T V.90, V.34bis, and lower data modulations, complete with MNP5 and V.42bis compression. MNP 2-4 and ITI-T V.42 error correction are managed as well. It also handles ITU-T V.17, V.29, V.27ter, T-30, Class 2, and Class 2.0 fax modulations. Voice-data support includes ITU G.711, G.723.1, G.729A, and G.729B voice coders, G.165 and G.168 echo cancellation, voice-activity detection, comfort-noise generation, and a DTMF relay. And, it has jitter-buffer management and playback, complete with call-status/progress monitoring, statistics/error collection, and system diagnostics.

Packetization support features PPP and SLIP data, RTP packets for VoIP, T.38 IFP packets for FoIP, and rate adaptation with buffering, spooling, and stalling. Also, the MTN5000 supports the H.110 Computer Telephony Bus. The 168-port configuration consumes 35 W.

The MTN5000 comes with a development kit that includes sample Linux and Windows NT drivers, and generic source code. It costs $60 per port or less, depending on quantity and functionality.

Mapletree Networks Inc., 315 Norwood Park S., Norwood, MA 02062; (781) 751-2400; fax (781) 751-2470; www.mapletree.com.

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