Transition Networks E-100BTX-SX-01 Switch Settings and Cable Requirements, Installation Notes

Switch Settings and Cable Requirements

100 meters

MDI/MDI-XStraight-Through/Crossover

Straight-through/crossover 100BASE-TX requirements are satisfied	MDI switch setting
using the MDI/MDI-X switch with straight-through cable.

E-100BTX-SX-01

100 meters

2 kilometers - multimode

MDI-X switch setting

4-Position Switch (4th switch not used)

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.

Setting Switches

Use small flatblade screwdriver or similar device to set recessed

MDI-X

Auto-negotiation UP=ON

Full/Half-duplex UP=FULL

MDI

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

Twisted Pair #1

Twisted Pair #2

Straight Through Cable

11

22

33

66

The two active pairs in a 100BASE-TX network 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.

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.

position

position			LPT/RFD UP=ON
			(not used)
		1-E	9V
	0		DC
	0
B
T			Input
F-X
O-X
4			Config
MDI MDI-X			1 Switches2 3 4

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.

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

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	24 to 22 AWG
Attenuation	20 dB/1000’ @ 10 MHz
Impedance	100 Ω ±10% @ 10 MHz
Maximum Cable Distance:	100 meters (330 feet)

100BASE-SX Cable Specifications

MULTIMODE
Fiber-optic Cable Recommended:	62.5 / 125 µm multimode fiber
Optional:	50 / 125 µm multimode fiber
Modal bandwidth:	≤ 160MHz-Km
Fiber-optic Transmitter Power:	min: -20 dBm	max: -12 dBm
Fiber-optic Receiver Sensitivity:	min: -24 dBm	max: -12 dBm
Wavelength:	850nM
Bit error rate:	≤ 2.5-10
Maximum Cable Distance:	2-300 meters