CISCO HWIC-4SHDSL Card

Refurbished CISCO HWIC-4SHDSL Card

Designed to deliver high-speed Ethernet services over SHDSL access, the multimode G.SHDSL EHWIC offers symmetric data rates over one to four pairs of copper wire and supports both EFM and ATM modes. In order to achieve higher bandwidths, bonding of multiple pairs (4-wire, m-pair, Inverse Multiplexing over ATM [IMA], and EFM bonding) is supported.

In EFM mode, the multimode G.SHDSL EHWIC allows bonding as defined by IEEE 802.3ah, and it is typically used in scenarios where individual links are aggregated using the 802.3ah loop aggregation. Depending on the amount of wire pairs in service, the data rates can be 1 x 5.7 Mbps up to 4 x 5.7 Mbps with Annexes F and G. The EHWIC complies with the 2BASE-TL standard, which is based on the IEEE 802.3ah EFM standard. The 2BASE-TL standard uses the technology standard based on ITU recommendation G.991.2 bis.

In ATM mode, the multimode G.SHDSL EHWIC allows bonding of multiple pairs up to 4 pairs (8-wire) with increased bandwidth by using IMA or data interleaving with m-pair mode. In both IMA and m-pair modes, the multimode four-pair G.SHDSL EHWIC offer data rates up to 5.696 Mbps per pair and up to 22.784 Mbps over four pairs. Refer to Table 2 for the data rates supported by the multimode four-pair G.SHDSL EHWIC (EHWIC-4SHDSL-EA) under different modes.

CISCO HWIC-4SHDSL Card: Product Features

• Complies with standard based on ITU Recommendation G.991.2
• Supports G.SHDSL Annexes A (U.S. signaling) and B (European signaling)
• Supports Annexes F and G
• Offers symmetrical WAN speeds up to 1 x 2304 kbps over single copper pair, up to 2 x 2304 kbps over two copper pairs, up to 3 x 2304 kbps over three copper pairs, and up to 4 x 2304 kbps over four copper pairs using ITU-T G.991.2 Annexes A and B
• Offers symmetrical WAN speeds up to 1 x 5696 kbps over single copper pair, up to 2 x 5696 kbps over two copper pairs, up to 3 x 5696 kbps over three copper pairs, and up to 4 x 56964 kbps over four copper pairs using ITU-T G.991.2 Annexes F and G
• Supports EFM bonding; supports up to four SHDSL pairs bonding
• In ATM mode, supports maximum of eight permanent virtual circuits (PVCs)
• Supports dying gasp and wetting current
• Supports point-to-point configuration
• Supports 802.1Q, QinQ, trunk, and VLAN tagging