Cabletron Systems MCC-DFL Manuel utilisateur

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MCC-DFL QUICK REFERENCE

QR.1 SETTING SWITCHES AND JUMPERS

Location of SW1/SW2 Switchblocks And Jumpers P1/P2

(Default Settings)



Printed in the United States of America

Order Number: 9032131-01 July, 1997

The Complete Networking Soluti

SW2

1234

SW1

1234

SW1

1234

SW2

1234

OFF

SW1 (FOT-A or RI)

On – Cabletron ﬁber key

Off – 802.5J ﬁber key

On – RO or lobe (RJ45 port)

Off – RI or station (RJ45 port)

On – Autowrap enable (RJ45 port)

Off – Autowrap disable (RJ45 port)

On – Station and lobe application

Off – RI and RO application

Switch Conﬁguration Table

(From back of card)

Notes: SW1 switchblock manages FOT-A.

SW2 switchblock manages FOT-B.

Individual switches on each

switchblock have the same

functionality.

Jumper P1 controls ring speed of

FOT-A.

Jumper P2 controls ring speed of

FOT-B.

SW2 (FOT-B or RO)

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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

RJ45 port as a station

Fiber ST port as a lobe

1 – Off

2 – Off

3 – Off

4 – On

RJ45 port as a RI

Fiber ST port as a RO

1 – On or Off

2 – Off

3 – On or Off

4 – Off

RJ45 port as a RO

Fiber ST port as a RI

1 – On or Off

2 – On

3 – On or Off

4 – Off

MCC-DFL

16 Mb

PWR

16 Mb

PWR

Phantom Current

Fiber Key

Concentrator

Station

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Example B

Example C

MCC-DFL

16 Mb

PWR

16 Mb

PWR

Fiber Key

Phantom Current

Concentrator

Station

MMAC

MCC-DFL

16 Mb

PWR

16 Mb

PWR

Ring Out To Ring In

MMAC MMAC

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Example D

QR.1.2 SelectingThe 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 Over

16 Mbps Pins 1 and 2 (Default setting)

4 Mbps Pins 2 and 3

Ring Speed of FOT-B Put Jumper P2 Sleeve Over

16 Mbps Pins 1 and 2 (Default setting)

4 Mbps Pins 2 and 3

MCC-DFL

16 Mb

PWR

16 Mb

PWR

Ring Out To Ring In

MMAC MMAC

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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 ﬁber keying or 802.5J ﬁber keying.

Set the switch as shown in the table.

Switch 2

This switch works in conjunction with Switch 4 to select the mode of

operation for the RJ45 port. Use Switch 4 to dictate whether the FOT will

act as a RI/RO device or station/lobe device. Once this has been done

Switch 2 determines the application of the RJ45 port. The ﬁber ST port

automatically conﬁgures to work with the RJ45 port. For example,

conﬁguring the RJ45 port as a RI, automatically changes the ﬁber ST port

to a RO. Set Switch 2 as shown in the table.

NOTE

Cabletron Systems offers complete compatibility with vendor

products that comply with the “new” 802.5J standard for ﬁber

RI/RO ports.Therefore, the MCC-DFL offers connectivity to

products using 802.5J or Cabletron Systems ﬁber keying.

KeyingType for Fiber RI/RO ST Port * Set Switch 1 to Position

Connection to Cabletron compliant devices On

Connection to 802.5J compliant devices Off

*Applicable to RI/RO applications only – 802.5J ﬁber keying is always

used for station and lobe applications.

Mode of Operation for RJ-45 Port Set Switch 2 to Position

RO or lobe applications On

RI or station applications Off

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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 Switch 3 as shown in the table.

Switch 4

This switch selects the mode on the entire FOT. Use the switch to

conﬁgure it as a RI/RO device or a station/lobe device. Then use Switch 2

to establish the conﬁguration of the RJ45 port; the ﬁber ST port

conﬁgures automatically. Set Switch 4 as shown in the table.

Autowrap on RJ45 RI/RO Port Set Switch 3 to Position

Connection to Cabletron devices On

Connection to non-Cabletron devices Off

Conﬁgure FOT Mode for Set Switch 4 to Position

RI/RO applications Off

Station/Lobe applications On

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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 lightsYELLOW to indicate a

16 Mbps ring speed on the associated FOT. An unlit LED indicates a ring

speed of 4 Mbps on the associated FOT.

P1 And P2 - Ports

Each FOT has

and

LEDs to indicate the status of the associated

port.

On FOT-A, the

LED indicates the status of the RJ45 port and the

LED indicates the status of the ﬁber ST port.

MCC-DFL

16 Mb

PWR

16 Mb

PWR

P216 Mb

PWR

16 Mb

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On FOT-B, the

LED indicates the status of the ﬁber ST port and the

LED indicates the status of the RJ45 port.

P1 And P2 LEDs For Station And Lobe Ports

The

and

LED indications vary slightly for ﬁber ST and RJ45 ports.

The table below describes the LED indications for ports conﬁgured as

lobe or station ports.

NOTE

The

and

LEDs act differently on FOTs conﬁgured for

station/lobe applications than they do for FOTs conﬁgured for

RI/RO applications.

Port LED Activity Meaning

RJ45

Lobe or

Station

GREEN Phantom current present (port inserted).

OFF No phantom current present (port wrapped).

Blinking RED

(Lobe port only) Speed-fault condition caused the port to wrap.

Fiber

Lobe

GREEN Fiber key received (port inserted).

Blinking GREEN The connection from the upstream device to

the Receive connection is complete but the

port is wrapped.

Blinking RED Speed-fault condition caused the port to wrap.

OFF Rx disconnected - signal loss.

Fiber

Station

GREEN Fiber key received (port inserted).

Blinking GREEN The connection from the upstream device to

the Receive connection is complete but the

port is wrapped.

OFF Rx disconnected - signal loss.

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P1 And P2 LEDs For RI And RO Ports

The

and

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 No activity (port wrapped).

Fiber

RI/RO

GREEN Rx connected, ﬁber key received.

Blinking GREEN

The connection from the upstream device to

the Receive connection is complete but from

the Transmit connection to the downstream

device it is incomplete.

Blinking RED Speed-fault condition caused the port to

wrap.

OFF No connection.

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