B.1
APPENDIX B
MULTICHANNEL MEDIA CONVERTER
CHANNEL CABLE SPECIFICATIONS
The physical characteristics of the media cable must meet or exceed
IEEE 802.3 specifications.
Fiber-Optic Cable
Multimode:
62.5 / 125 µm multimode fiber
Optional:
100 /140 µm multimode fiber
85 /125 µm multimode fiber
50 /125 µm multimode fiber
Singlemode:
9 µm singlemode fiber
Twisted-Pair Copper Cable
Use shielded twisted-pair (STP) or unshielded twisted-pair (UTP) copper
cable.
Category 3
Gauge
24 to 22 AWG
Attenuation
28 dB/1000’ @ 10 MHz
Differential Characteristic Impedance
100
Ω
±10% @ 10 MHz
Category 5
Gauge
24 to 22 AWG
Attenuation
20 dB/1000’ @ 10 MHz
22.0 dB /100m @ 100 MHz
Differential Characteristic Impedance
100
Ω
±10% @ 10 MHz
NOTE: The active pairs are pins 1 & 2 and pins 3 & 6. Use only dedicated
wire pairs (such as blue/white & white/blue, orange/white & white/orange)
for the active pins.
When connecting the Multichannel Media Converter twisted-pair copper
channel to a hub, switch, or router, use the straight-through cable
configuration.
When connecting the Multichannel Media Converter twisted-pair copper
channel to a terminal device such as a workstation or printer, use the
crossover cable configuration.
Twisted
Pair #1
Twisted
Pair #2
Crossover Cable
Connectors for like devices
Twisted
Pair #1
Twisted
Pair #2
Straight Through Cable
Connectors for unlike devices
