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Tahoe 4681 - Four-port G.shdsl+ Modem Card
Tahoe 4681 is a card version of the successful Tahoe 684 G.shdsl+ modem
designed for installation in a 19" rack-mounted DSL Access Multiplexer.
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Each modem port achieves throughputs of 5.7 Mbps on the distance of
a few kilometers. The pairs can be bundled into 4-wire or 8-wire trunks
giving speeds reaching 22.8 Mbps - much more than any other xDSL
technology can provide.
Thanks to the line bundling you can connect four Tahoe 681 modems, two Tahoe 682 modems or one Tahoe 684 on the other end of the lines. The
traffic on these lines may be mixed together in bridge mode or separated
using VLANs. In the latter case you may define a DSL port as an untagged and
the Ethernet port as tagged and separate traffic on an external Ethernet
switch (read more)
Apart from typical G.shdsl modulations they support TCPAM-32 coding -
much more efficient than the standard TCPAM-16, giving higher throughputs
and higher reach.
Modem Card Features:
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G.shdsl, conforms to ITU G.991.2
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up to 5.7 Mbps per port
up to 22.8 Mbps on a bundled 8-wire (4-pair) line
symmetrical speed (i.e. 22.8 Mbps upload and 22.8 Mbps download at the same time)
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TCPAM-32
up to 30% higher reach in comparison to HDSL
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Features
(click, to
read more)
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Modem Reach:
Values below were measured on a test line of 0.5mm wire
diameter. They depend on an actual line and thus are not guaranteed. They
may be different - higher or lower - in an individual case.
Technical Details:
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up to 15,000 packets per second
(in transparent bridge mode)
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TCP, IP, UDP, ICMP, TFTP, SNMP, DHCP, BOOTP, PPP, Frame Relay, HDLC, Cisco®
HDLC, IEEE 802.1q
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30 mm (width) x 128 mm (height) x 185 mm (depth)
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User Manual (PDF):
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