Transition Networks FD-CD-01(SM) warranty Cddi Cable

Straight Through/Crossover Cable Requirements and Pin Specifications

Straight-through/crossover CDDI requirements are satisfied using the MDI/MDI-X switch with straight-through cable.

100 meters

2 kilometers - multimode

20 kilometers - singlemode

FD-CD-01, FD-CD-01(SM)

100 meters

CDDI cable connections between a concentrator and the media converter require the MDI/MDI-X switch to be set to MDI.

MDI switch setting

MDI-X MDI

position position

MDI-X switch setting

CDDI Cable

CDDI cable connections between the media converter and a NIC require the switch to be set to MDI-X

Using small flatblade screwdriver or similar tool and referring to label at front of media converter, set MDI/MDI-X switch position for site installation.

	X-MDI	MDI
Input		FD-CD-01	CDDI
12V DC	FDDI to CDDI		FDDI

Twisted Pair #1

Twisted Pair #2

Straight Through Cable

11

22

77

88

The two active pairs in a CDDI network are pins 1 & 2 and pins 7 & 8. Use only dedicated wire pairs (such as blue/white & white/blue, orange/white & white/orange) for the active pins.

Installation Notes

•KEEP TWISTED PAIR RUNS AS SHORT AS POSSIBLE.

•Be certain that the CDDI MDI/MDI-X switch is set correctly for site installation.

•Connect the power supply cable to the media converter BEFORE connecting to the outlet.

•Install unit with PSU provided. (Output 12 VDC regulated, 350 mA).

•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 your AC outlet? NOTE: Refer to the “Power Supply Requirements” on the back page.

•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 CDDI Link LED illuminated?

NO

•Check UTP cables for proper connection and pin assignment. (See above.)

•Contact Technical Support at (800) 260-1312/ (800) LAN-WANS.

YES

•Proceed to step 3.

3.Is the fiber Link 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 FDDI device.

•Refer to Tech Tips available at: http://www.transition.com

•Contact Technical Support at (800) 260-1312/ (800) LAN-WANS.

YES

•Contact Technical Support at (800) 260-1312/ (800) LAN-WANS.

ETHERNET CABLE SPECIFICATIONS

The physical characteristics of the media cable must meet or exceed ANSI X3T12 FDDI specifications.

FDDI CABLE SPECIFICATIONS

SINGLEMODE
Fiber-optic Cable Recommended:	9 µm singlemode fiber
Fiber-optic Transmitter Power:	min: -15.0 dBm	max: -8.0 dBm
Fiber-optic Receiver Sensitivity:	min: -32.5 dBm	max: -8.0 dBm
Wavelength:	1300nM
Bit error rate:	≤ 10-9
Maximum Cable Distance:	20 kilometers
MULTIMODE
Fiber-optic Cable Recommended:	62.5 / 125 µm multimode fiber
Optional:	100 / 140 µm multimode fiber
	85 / 125 µm multimode fiber
	50 / 125 µm multimode fiber
Fiber-optic Transmitter Power:	min: -19.0 dBm	max: -14.0 dBm
Fiber-optic Receiver Sensitivity:	min: -32.5 dBm	max: -14.0 dBm
Wavelength:	1300nM
Bit error rate:	≤ 10-9
Maximum Cable Distance:	2 kilometers

CDDI 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)