Digium TE121B and TE122B

Compact and powerful interface that can easily toggle between T1/PRI or E1/PRI.

Digium TE121 and TE122 are a high-performance, cost effective digital telephony interface cards with the power to create a seamless network, interconnecting traditional telephony systems with emerging Voice over IP technologies.

The TE122 is a single span, selectable T1 (24-channel), E1 (32-channel), or J1 (24-channel) card. This card utilize Digium's VoiceBus™ technology that allows the TE122 to use an industry standard bus-mastering PCI interface. Improving upon the prior TE120P which does not offer expansion capabilities. The TE122 may be combined with Digium's VPMADT032 echo cancellation module to deliver 128ms of echo cancellation across 30 channels in E1 mode or 24 channels in T1 mode. Bundled with the VPMADT032, the product SKU is TE122B.

The TE121 is a single span, selectable T1 (24-channel), E1 (32-channel), or J1 (24-channel) card. The card utilizes Digium's VoiceBus™ technology which allows it to use an industry standard bus-mastering PCI Express interface. As well as the TE122, the TE121 may be combined with Digium's VPMADT032 echo cancellation module to deliver 128ms of echo cancellation across 30 channels in E1 mode or 24 channels in T1 mode. Bundled with the VPMADT032, the product SKU is TE121B.

A low profile form factor allows these devices to fit within a 2U rackmount case or equivalent chassis, offering excellent density for call center, service provider, and other space-sensitive applications.

Contact ABP for ordering any of these modules.

Feature List

PRI Switch Capability

RBS Voice Modes: GR-303, A-Law, ì-Law, and Linear.

Modes Supported : E&M, E&M Wink, Feature Group D, Groundstart (FXO and FXS), Loopstart (FXO and FXS) with Optional Disconnect Supervision

Data Modes : SyncPPP (both Fixed and Dialup), Frame Relay, Cisco HDLC

Technical Specifications

TE122 and TE121 support industry standard telephony and data protocols, including Primary Rate ISDN (both N. American and Standard Euro) protocol families for voice, PPP, Cisco, HDLC, and Frame Relay data modes. Both line-side and trunk-side interfaces are supported, also included are advanced call features.

Physical Specifications

The TE121 and TE122 work in both 3.3V and 5V PCI slots by auto detecting the slot's voltage.

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Product Applications Scenarios

IPBX

Internet Telephony Service Provider Network for Residential Users

ISP Voice Services

Digital Gateway and Protocol conversion with Asterisk SIP <-> H323

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Downloads

TE121 Data Sheet 723 KB

TE122 Data Sheet 723 KB

VPMADT032 Product Sheet 278 KB