Four Port T1/E1 PCI Express Asterisk
Interface + Echo cancellation-
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Digium TE420B Information:
Digium's TE420B PCI Express card provides termination of up to
60 channels of voice or data across four E1, T1, or J1
interfaces in a PCIe x1 form factor. Selectable on a
per-port or per-card basis, the TE420B allows E1 and T1
circuits to be mixed with full channel synchronization.
Supporting PCIe x1, the TE420B may be used in any available
PCIe 1.0 compliant slot - 1x, x4, x8, and x16 without
considerations for voltage selection or lane size.
Digium TE420B Features:
The TE420B may be combined with Digium's VPMOCT128 Octasic
DSP-based echo cancellation module (not shown in picture).
The VPMOCT128 provides the G.168 algorithm which has been
labeled a benchmark for echo cancellation and performs 128ms
(1024 taps) of echo cancellation across all 128 channels in
E1 mode or all 96 channels in T1/J1 modes. Bundled with the
VPMOCT128, the product SKU is TE420BB.
Digium has designed the TE420B to be fully compatible and
integrated with Asterisk Business Edition, AsteriskNOW, and
open source Asterisk.
The TE420B supports industry standard telephony protocols
including North American and European Primary Rate signaling
as well as standard Robbed Bit, Channel Associated Signaling
in addition to standard PPP, HDLC, and Frame Relay data
Digium TE420B Price:
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