Installation Notes - Transition Networks NANOMETER E-100BTX-SX-01 User Manual

Switch Settings and Cable Requirements
MDI/MDI-X Straight-Through/Crossover
Straight-through/crossover 100BASE-TX requirements are satisfied
using the MDI/MDI-X switch with straight-through cable.
Set the MDI/MDI-X switch to MDI for cable connections
between hub and media converter.
Set the MDI/MDI-X switch to MDI-X for cable connections
between media converter and terminal, transceiver or NIC.
Straight Through Cable
The two active pairs in a
100BASE-TX network are pins
1 1
Twisted
1 & 2 and pins 3 & 6. Use only
Pair #1
2 2
dedicated wire pairs (such as
blue/white & white/blue,
Twisted 3 3
orange/white & white/orange)
Pair #2
6 6
for the active pins.

Installation Notes

• DO NOT CONNECT MEDIA CONVERTERS BETWEEN HUBS.
• KEEP TWISTED PAIR RUNS AS SHORT AS POSSIBLE.
• Be certain that the 100BASE-TX MDI/MDI-X switch is set correctly for site installation.
• Install unit with power supply unit provided. (Output 9 VDC regulated, 500 mA).
• Connect the power supply cable to the media converter BEFORE connecting to outlet.
• Install no more than two (2) media converters in series.
Troubleshooting the Media Converter
1. Is the power LED on the media converter illuminated?
NO
• Is the power adapter the proper type of voltage and cycle frequency for AC outlet?
• Is the power adapter properly installed in the media converter and in the outlet?
• Contact Technical Support at (800) 260-1312/ (800) LAN-WANS.
YES
• Proceed to step 2.
2. Is the 100BASE-SX SDC LED illuminated?
NO
• Check UTP cables for proper connection and MDI/MDI-X switch position. (See above.)
• Contact Technical Support at (800) 260-1312/ (800) LAN-WANS.
YES
• Proceed to step 3.
3. Is the fiber SDF LED illuminated?
NO
• Check fiber cables for proper connection.
• Verify that TX and RX cables on media converter are connected to RX and TX ports,
respectively, on the other 100BASE-SX device.
• Refer to Tech Tips available at: http://www.transition.com
• Contact Technical Support at (800) 260-1312/ (800) LAN-WANS.
YES
100 meters
MDI switch setting
Setting Switches
Use small flatblade
screwdriver or similar
device to set recessed MDI-X
position
switches. Refer to label on
top of media converter for
MDI/ MDI-X switch
settings. Refer to drawing
at left for four-position
switch settings.
2 kilometers - multimode
Auto-negotiation UP=ON
Full/Half-duplex UP=FULL
MDI
LPT/RFD UP=ON
position
(not used)
Config
MDI MDI-X 1 2 3 4 Switches
Ethernet Cable Specifications
The physical characteristics of the media cable must meet or exceed IEEE 802.3u
100BASE-TX and IEEE 802.3z 100BASE-SX specifications.
100BASE-TX Cable Specifications
Category 5 wire or better is required. Either shielded twisted pair (STP) or unshielded
twisted pair (UTP) can be used. DO NOT USE FLAT OR SILVER SATIN WIRE.
Category 5:
Gauge
Attenuation
Impedance
Maximum Cable Distance:
100BASE-SX Cable Specifications
MULTIMODE
Fiber-optic Cable Recommended:
Optional:
Modal bandwidth:
Fiber-optic Transmitter Power:
Fiber-optic Receiver Sensitivity:
Wavelength:
Bit error rate:
Maximum Cable Distance:
E-100BTX-SX-01
100 meters
MDI-X switch setting
4-Position Switch
(4th switch not used)
Auto-negotiation (UP) Detects and adapts to line
speed/operation mode of attached device.
Full/Half-duplex (UP) Allows an attached full-
duplex station to transmit and receive
simultaneously. (DOWN) Allows an attached
station to transmit and receive sequentially.
LPT/RFD (UP) Blinks the SDF or SDC LED if a
malfunction is detected at the unit to which the
media converter is attached.
24 to 22 AWG
20 dB/1000' @ 10 MHz
100 ±10% @ 10 MHz
100 meters (330 feet)
62.5 / 125 µm multimode fiber
50 / 125 µm multimode fiber
160MHz-Km
min: -20 dBm max: -12 dBm
min: -24 dBm max: -12 dBm
850nM
2.5 -10
2-300 meters