Sagem 1500 User Manual

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Appendix C - Cables
SAGEM F@st™ 1500 Reference Manual - 288053220-04
Page C-2
Reproduction and communication prohibited without the written permission of
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C.1 Ethernet 
cable
!
DO NOT plug a phone jack connector into any RJ-45 port.
Use only twisted-pair cables with RJ-45 connectors that conform with FCC
standards.
C.1.1 Specifications
Cable Types and Specifications
Cable
Type
Max. Length
Connector
10BASE-T
Cat. 3, 4, 5 100-ohm UTP
100 m (328 ft)
RJ-45
100BASE-TX Cat. 5 100-ohm UTP
100 m (328 ft)
RJ-45
C.1.2 Wiring 
Conventions
For Ethernet connections, a twisted-pair cable must have two pairs of wires. Each wire pair is
identified by two different colors. For example, one wire might be red and the other, red with
white stripes. Also, an RJ-45 connector must be attached to both ends of the cable
Each wire pair must be attached to the RJ-45 connectors in a specific
orientation. The following figure illustrates how the pins on an Ethernet
RJ-45 connector are numbered. Be sure to hold the connectors in the same
orientation when attaching the wires to the pins.
Figure C.1 - RJ-45 Ethernet Connector Pin Numbers
C.1.3 
RJ-45 Port Connection
Use the straight-through CAT-5 Ethernet cable provided in the package to
connect the 
Sagem F@st1500 ADSL Router 
to your PC. When connecting to other network
devices such as an Ethernet switch, use the cable type shown in the
following table.
Attached Device Port Type
Connecting Cable Type
MDI-X
Straight-through
MDI
Crossover