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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 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.

 

Keying Type 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

Содержание MCC-DFL

Страница 1: ...SW1 1 2 3 4 SW2 1 2 3 4 OFF ON OFF ON P1 P2 P2 P1 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 1 2 3 4 Switch Configuration Table From back of card Notes SW1 switchblock manages FOT A SW2 switchblock manages FOT B I...

Страница 2: ... 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 port as a RO 1 On or Off 2 Off 3 On or Off 4 Off C RJ45 port as a RO Fiber ST port as a RI 1 On or Off 2 On 3 On or Off 4 Off D 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 Phantom Current Phantom Current Fiber Key Fiber Key Concentrator Station ...

Страница 3: ...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 To Ring In Ring Out To Ring In Ring Out To Ring In MMAC MMAC ...

Страница 4: ...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 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 To Ring In Ring Out To Ring In Ring Out To R...

Страница 5: ...n 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 ...

Страница 6: ...n 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 Cabletro...

Страница 7: ...Mb LED The LEDs lights YELLOW 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 P1 and P2 LEDs to indicate the status of the associated port On FOT A the P1 LED indicates the status of the RJ45 port and the P2 LED indicates the status of the fiber ST port MCC DFL P 1 P 2 P1 P2 16 Mb PWR P1 P2 16 M...

Страница 8: ...s 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 fau...

Страница 9: ...p 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 con...

Страница 10: ...QR 10 ...

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