SMC Networks Elite16 Manual page 66

computer and concentrator are
powered on, check the modular plug
connection at the adapter board and
at the concentrator and all wiring.
The polarity status LED is ON if the
polarity of the twisted pair receive
wires is normal. It is OFF if the
polarity is reversed. The adapter will
automatically correct for reversed
polarity.
Using Existing Phone
Cable
The existing telephone wiring in your
building can be used for network in-
terconnection if the wiring meets mini-
mum standards and any wall jacks are
wired correctly Before starting the in-
stallation, verify that all twisted-pair
wires meet the requirements
described in Appendix A "Networi(
Components and Setup".
The existing telephone wiring may
consist of a separate eight-conductor,
twisted-paircable routed to each wall
jack, or it may consist of dozens of
twisted-pair conductors in a cable
bundle.. If a cable bundle is used, the
conductors for each phone line have
been separated from the bundle and
attached to the wall jack: .
In either case, the an-angement of
twisted-pairs at the wall jack in a typi-
cal telephone installation is usually
not acceptable for network signal
transmissions. The two twisted-wire
Wire
Pair
1
1 •
2
2 . .
3
3
4
• 4
Color Code
orange/white band
white/orange band
green/white band
white/green band
blue/white band
white/blue band
solid gray
solid orange
Function
network signals
network signals
network signals
network signals
telephone
telephone
telephone
telephone
Modular Wall
Pin Number
2
1
6
3
4
5
8
7
Table 10. Example Color & Wire-Pair Configuration
70