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TRFOT-2, TRFOT-3

CABLETRON SYSTEMS, INC.

TRFOT-2, TRFOT-3

Device Type

Fiber Optic Transceiver

NIC Type

Token Ring

Maximum Onboard Memory

Unidentified

Boot ROM

Not available

Network Transfer Rate

4/16Mbps

Topology

Star

Wiring Type

Unshielded twisted pair (10Base-T)

Fiber optic

Data Bus

External

CONNECTIONS

Function

Label

Function

Label

Power jack

CN1

Fiber optic connector (ST) - receive

RX

AUI transceiver via DB-9

CN2

Fiber optic connector (ST) - transmit

TX

USER CONFIGURABLE SETTINGS

Function

Label

Position

Phantom drive disabled

SW1/C

On

Phantom drive enabled

SW1/C

Off

Cabletron proprietary devices

SW1/D

On

802.5J compatible devices

SW1/D

Off

Note: SW1/C & SW1/D apply to RI/RO applications

APPLICATION SETTINGS

Setting

SW1/A

SW1/B

SW1/C

SW1/D

Station application enabled

On

Off

Off

Off

Lobe (TCU) application enabled

Off

Off

Off

Off

Ring in application enabled

On

On

See note

See note

Ring out application enabled

Off

On

See note

See note

Note: SW1/C & SW1/D may be in either position as illustrated in the user configuration table

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

PWR

Green

On

Power is on

PWR

Green

Off

Power is off

CU

Green

On

Phantom detected/valid copper link

CU

Green

Blinking

Phantom detected/valid copper link, no data present

CU

Red

On

Phantom not detected. No copper link

FO

Green

On

Fiber optic link is good

FO

Red

On

Fiber optic link is broken