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  5. Quick Reference

Cabletron Systems MCC-DFL Quick Reference

Manual is about: Fiber Link Conversion Module, SETTING SWITCHES AND JUMPERS

Summary of MCC-DFL

  • Page 1

    Qr-1 mcc-dfl quick reference qr.1 setting switches and jumpers location of sw1/sw2 switchblocks and jumpers p1/p2 (default settings) copyright 1997 by cabletron systems, inc., p.O. Box 5005, rochester, nh 03866-5005 all rights reserved printed in the united states of america order number: 9032131-01...

  • Page 2

    Qr-2 qr.1.1 selecting port configurations example a configuration switch settings example rj45 port as a lobe fiber st port as a station (default configuration) 1 – off 2 – on 3 – off 4 – on a rj45 port as a station fiber st port as a lobe 1 – off 2 – off 3 – off 4 – on b rj45 port as a ri fiber st ...

  • Page 3

    Qr-3 example b example c mcc-dfl p 1 p 2 p1 p2 16 mb pwr p1 p2 16 mb pwr p 2 p 1 tx tx rx rx f o t b f o t a fiber key fiber key phantom current phantom current concentrator station mmac mcc-dfl p 1 p 2 p1 p2 16 mb pwr p1 p2 16 mb pwr p 2 p 1 tx tx rx rx f o t b f o t a ring out to ring in ring out ...

  • Page 4

    Qr-4 example d qr.1.2 selecting the ring speed(s) the jumpers p1 and p2 are used to select the mcc-dfl’s ring(s) speed. Use jumper p1 to set the ring speed of fot-a, as shown in the table. Use jumper p 2 to set the ring speed of fot-b, as shown in the table. Ring speed of fot-a put jumper p1 sleeve ...

  • Page 5

    Qr-5 qr.1.3 description of switches switch 1 you can set the type of fiber keying on ri/ro ports to connect to devices using 802.5j fiber keying or devices using cabletron fiber keying. Switch 1 dictates the type of fiber keying; the setting depends on whether the attached device is using cabletron ...

  • Page 6

    Qr-6 switch 3 when the fot is being used as a ri/ro device this switch enables or disables the autowrap feature on the rj45 port. It has no relevance to station/lobe applications. The feature should be enabled to connect to cabletron devices or disabled to connect to non-cabletron devices. Set switc...

  • Page 7: Qr.2

    Qr-7 qr.2 led functions consult the diagram to help interpret led indications. Mcc-dfl leds pwr - power the pwr led lights green during normal operation, indicating the reception of power. If the led is off, the mcc-dfl is not receiving power. 16 mb - ring speed each fot has a 16 mb led. The leds li...

  • Page 8

    Qr-8 on fot-b, the p1 led indicates the status of the fiber st port and the p2 led indicates the status of the rj45 port. P1 and p2 leds for station and lobe ports the p1 and p2 led indications vary slightly for fiber st and rj45 ports. The table below describes the led indications for ports configu...

  • Page 9

    Qr-9 p1 and p2 leds for ri and ro ports the p1 and p2 leds indicate the status of the ri/ro ports as described in the table. Port led activity meaning rj45 ri/ro green active (port open) blinking green autowrap condition (port wrapped). Blinking red speed-fault condition caused the port to wrap. Off...

  • Page 10

    Qr-10