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1.4.4 Link Fault Pass-Through Function

When this function is enabled, a link fault detected on the TP port will force a
link down on the FX port.  Similarly, a link fault detected on the FX port will
also force a link down on the TP port.  As illustrated in the following figure,
this function allows a TP link fault to pass to the remote link partner and
makes the converter act like a TP cable extender.

Summary of Contents for M727xS

Page 1: ...A010430357 M727xS 10 100BaseTX FX Selectable Media Converter Installation Guide Copyright January 2004 VERSITRON Inc 83 Albe Drive Suite C Newark DE 19702 www versitron com ...

Page 2: ... device may not cause harmful interference and 2 this device must accept any interference receivedincludingtheinterferencethatitmaycause CE NOTICE Marking by the symbol indicates compliance of this equipment to the EMC directive of the European Community Such marking is indicative that this equipment meets or exceeds the following technical standards EMC Class B EN50081 1 1992 EN55022 EN61000 3 2 ...

Page 3: ...1 4 5 Remote TP Port Monitoring Function 12 1 4 6 LoopBackTestFunction 12 2 Installing the Switch 13 2 1 Unpacking 13 2 2 MountingtheDevice 13 2 3 ApplyingPower 14 2 4 Making TP Port Connection 15 2 5 MakingFX PortConnection 16 2 6 LEDIndicators 17 2 7 Performing Loop Back Test 18 3 Optional Configuration Settings 19 3 1 UserInaccessibleJumpers 20 3 1 1 ForwardingModeSettingJP1 20 3 1 2 802 3x Fun...

Page 4: ...ion Support 10Mbps and 100Mbps speed on TP connections Auto MDI MDI X detection function on the TP port Auto negotiation function on the TP port Link fault pass through function Provide manual configuration settings for TP port to support connection to non auto negotiation devices Transparent to 802 1Q VLAN tagged packets Far End Fault function on FX port Provide LED status display for remote TP p...

Page 5: ...toMDI MDI Xdetection Signal Compliance 802 3 10Base T 802 3u 100BaseTX Data Speed 10Mbps or 100Mbps Duplex Mode Half duplex or Full duplex Configuration Auto negotiationcapableandoptional forced manual settings Cable Types 10Mbps Category 3 4 or 5 UTP 100Mbps Category 5 UTP Supported Link Distance Up to 100 meters ...

Page 6: ...ck test RELEASE Stop loop back test User Accessible Settings SW NO SETTING STATE FUNCTION SW1 TP Port Configuration OFF Auto negotiation default ON Forced mode SW2 TP Port Duplex OFF Full duplex default ON Half duplex SW3 TP Port Speed OFF 100Mbps default ON 10Mbps SW4 Link Fault Pass through OFF Disable default ON Enable SW5 Reserved Optional Settings User inaccessible JP1 JP3 on board NO SETTING...

Page 7: ... FX OL FX port optical link ON Optical signal is detected OFF No optical signal RTP LINK Remote TP port link ON Link up and no traffic OFF Link fault RTP 100M Remote TP port speed ON 100Mbps OFF 10Mbps RTP FDX Remote TP port duplex ON Full duplex OFF Half duplex RTP LINK 100M FDX LEDs are also used for loop back test report DC Power Input DC Input Jack D6 3mm D2 0mm Operating Input Voltage 4 75V 1...

Page 8: ...ets IEEE 802 1Q VLAN tagged packets Packet Length Up to 1522 bytes at store and forward mode No limit at smart forward mode 100to100 Flow Control Back pressure for half duplex mode 802 3x pause frame base for full duplex mode Mechanical Dimension 0 91H x 2 86W x 4 25D in 23x72 5x108mm Housing Enclosed metal with no fan Mounting Desktop Wall mount Center chassis Weight 0 47 lbs 212g Environmental O...

Page 9: ...33dBm 2 Km M7274S SC Duplex MM 1310nm 19 14dBm 33dBm 2 Km M7275S 2 SC Duplex SM 1310nm 15 8dBm 30dBm 20 Km M7275S 5 SC Duplex SM 1310nm 5 0dBm 35dBm 50 Km M7275S 9 SC Duplex SM 1310nm 0 5dBm 37dBm 90 Km Single Fiber WDM Series Model Connector Fiber Wavelength Tx Power Sensitivity Distance M7275S 2SFA SC Single Fiber SM TX 1310nm 14 8dBm 33dBm 20 Km RX 1550nm M7275S 2SFB SC Single Fiber SM TX 1550n...

Page 10: ...nected device automatically each time a link is being established 1 4 3 Far End Fault Function The FX port is facilitated with this function which conforms to IEEE 802 3u 100BaseFX specifications When the FX port detects a link failure on its receiving circuitry it will send out an FEFI Far End Fault Indication signal to the remote connected device to indicate a remote fault is detected It also is...

Page 11: ...ted on the TP port will force a link down on the FX port Similarly a link fault detected on the FX port will also force a link down on the TP port As illustrated in the following figure this function allows a TP link fault to pass to the remote link partner and makes the converter act like a TP cable extender ...

Page 12: ...k Test Function As illustrated in the following figure the local MC starts a loop back test by pressing the loop back test button It sends test frames from its FX port to the remote MC The remote MC forwards the received test frames back to the local MC from its FX port The local MC verifies the loop back test frames and displays the test result on the RTP LINK 100M FDX LEDs This function can help...

Page 13: ...pation from and adequate ventilation around the device Do not place heavy objects on the device Wall Mounting The media converter can be mounted on a wall On the bottom of the device a hole is provided for wall mounting Installation into a Chassis Center The media converter can be installed in any one of four chassis The chassis center provides the power supply to the converter Up to 16 converters...

Page 14: ... area options Rated AC120V 60Hz DC7 5V 1A Rated AC230V 50Hz DC7 5V 1A Rated AC100V 50 60Hz DC7 5V 1A Rated AC100V 50 60Hz DC5V 1A Rated AC240V 50Hz DC7 5V 1A Steps to apply the power to the converters are 1 Connect power adapter DC plug to the DC input jack located on the back of the converter before connecting to the AC outlet 2 To ensure against accidental disconnection tie the DC cable with the...

Page 15: ... Cat 5 EIA TIA 568 100 ohm STP Link distance Up to 100 meters Configuration Setup To make a proper connection the following configuration settings are recommended TP port link partner SW1 SW2 SW3 Auto negotiation device Off auto Off full duplex Off 100M Fixed 10M half duplex device On forced On half duplex On 10M Fixed 100M half duplex device On forced On half duplex Off 100M Fixed 10M full duplex...

Page 16: ...Bm 30dBm 20 Km M7275S 5 SC Duplex SM 1310nm 5 0dBm 35dBm 50 Km M7275S 9 SC Duplex SM 1310nm 0 5dBm 37dBm 90 Km Single Fiber WDM Series Model Connector Fiber Wavelength Tx Power Sensitivity Distance M7275S 2SFA SC Single Fiber SM TX 1310nm 14 8dBm 33dBm 20 Km RX 1550nm M7275S 2SFB SC Single Fiber SM TX 1550nm 14 8dBm 33dBm 20 Km RX 1310nm Since the WDM single fiber media converters use different wa...

Page 17: ... Off Link fault Blink Rx Tx activities FX OL FX port optical link On Optical signal is detected Off No optical signal is detected Link Fault Pass Through Function is enabled TP LINK FX LINK FX OL Interpretation On On On Both TP and FX ports link up Off Off On 1 TP port link fault or 2 FX port received FEFI si ngle FX port Tx path failed Off Off Off 1 TP port link fault or 2 FX port Rx link failure...

Page 18: ...00M LED It is ON to indicate a completion of the loop back test and OFF during test 4 Check RTP FDX LED for the test result It is ON to indicate a TEST PASS and OFF for TEST FAIL 5 Release Loop back test button RTP LINK 100M FDX LEDs are back to display remote TP port status Summary of Loop Back Test LEDs LED Status Interpretation RTP LINK Blink The MC is in Loop Back Test mode RTP 100M On Loop ba...

Page 19: ...ers The setting jumpers are not accessible by users generally For accessing these jumpers the upper case must be removed from the circuit board An authorized and experienced technician must perform removal of the case The setting jumper block is located on the position shown below The setting functions are as follows JP1 Forwarding mode setting Open Store and forward mode Short Smart forward mode ...

Page 20: ...ame speed on both the TP port and the FX port Direct conversion method converts the signal between the TP port and the FX port without storing the received packet on one port then forwarding to another port The media converter operates with the minimum delay Note 1 In direct conversion both devices connected to the TP port and FX port must have the same duplex modem setting for proper transmission...

Page 21: ... This method uses pause frames for one port to stop further transmission from its link partner 3 1 3 FX Duplex Setting JP3 This setting is used to set the duplex mode of the FX port 3 2 JP1 JP3 Factory Default Settings The factory default settings for JP1 JP2 and JP3 are as follows JP1 Open Store and forward mode JP2 Open 802 3x function is enabled JP3 Open FX port full duplex ...

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