Appeal 2007-0636
Application 10/351,016
as well as any chassis that does not have a termination resistor built into the
backplane. (Specification 4).
2. As depicted in Figures 1, 2 and 5, a line card (100) includes a chassis
(200) containing a backplane (202) that does not have a built in termination
resistor. (Id.)
3. The line card further includes a functional circuitry (104) that
interfaces DSX or DSL ports with backplane ports via backplane connectors
(204) and connection contacts C8 and C9, designated as line card connector
contacts 106. (Id.)
4. The line card additionally includes a termination resistor (102) or an
impedance network (602) coupled with the no built-in resistor backplane
(202) to terminate the backplane (202). (Specification 4 through 6). [e.g.,
claims 1, 15]
5. In another embodiment, as depicted in Figures 3 and 4, where the line
card (100) includes a backplane (406) with a termination resistor (502) built
into its chassis (500), the line card couples a jumper (300) across line
connector contacts (106) when they are interfaced with backplane contacts
(302 and 304) to bypass termination resistor (102) of a DSX line.
(Specification 5). [e.g., claim 7]
6. In another embodiment, as depicted in Figures 3 and 4, where the line
card (100) includes a backplane (406) with a termination resistor (502) built
into its chassis (500), the signal DSX lines are coupled directly to the chassis
to terminate the signals with the backplane termination resistor (502).
(Specification 5 and 6). [e.g., claims 22, 29 and 32]
resistor or the line card termination resistor remains open (Specification 1, 5
and 6).
6
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Last modified: September 9, 2013