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Local Loop-Back (L/LB) 

This switch will set the Flex Point T1/E1 converter in a loop-back mode on both the fiber 
and copper connections.  By turning the switch to the normal position, the unit will 
resume to normal operation. 
 

FO-Tx

FO-Rx

CuRx

CuTx

Loopback Enabled

 

 
 
 

Transmit/force 1’s to Fiber 

This switch is used to insert an “all ones” pattern into the data stream being transmitted 
out of the fiber port on the Flex Point T1/E1 converter.  Data being received on the coax 
or twisted pair will be disabled and data being received on the fiber is passed through to 
the coax or twisted pair side.  By returning the switch to the normal position, the unit will 
resume to normal operation. 
 

Transmit/force 1’s to Coax or UTP 

This switch is used to insert an “all ones” pattern into the data stream being transmitted 
out of the coax or twisted pair on the Flex Point T1/E1 converter.  Data being received on 
the fiber will be disabled and data being received on the coax or twisted pair is passed 
through to the fiber side.  By returning the switch to the normal position, the unit will 
resume to normal operation. 
 

Содержание MT660A-MM

Страница 1: ...TOMER Order toll free in the U S Call 877 877 BBOX SUPPORT outside U S call 724 746 5500 INFORMATION FREE technical support 24 hours a day 7 days a week Call 724 746 5500 or fax 724 746 0746 Mailing a...

Страница 2: ...with a Listed Direct Plug In Power Unit marked Class 2 and rated at 9VDC 1 Amp 2 This product should always be used only with the supplied power unit 3 Models shipped with international power supplie...

Страница 3: ...ed for the active pins Set the UTP DCE DTE switch for the RJ 45 48 port to the appropriate setting Note Use copper cables that are compliant with the specifications that are outlined in copper cable s...

Страница 4: ...1 DS 1 RJ 45 48 0 dB D D D D T1 DS 1 RJ 45 48 7 5 dB D U D U T1 DS 1 RJ 45 48 15 0 dB D U U D T1 DS 1 RJ 45 48 22 5 dB D U U U E1 75 ohm Coax BNC Standard U D D D E1 120 ohm RJ 45 48 Standard U D D U...

Страница 5: ...eceived on the coax or twisted pair will be disabled and data being received on the fiber is passed through to the coax or twisted pair side By returning the switch to the normal position the unit wil...

Страница 6: ...of operation and return a signal to the sending unit An LED on the local and remote Flex Point T1 E1 converters will show a configuration that the fiber segment is communicating properly between devi...

Страница 7: ...nk All Ones received Test Green Off Normal Operation On L LB or All 1 s Test Mode Blink R L LB Received Master Fast Blink R L LB Received Slave Fiber Cable Specifications Multimode Cable 50 125 62 5 1...

Страница 8: ...ance 6 000 ft Twisted Pair cable for E1 Gauge 22 to 24 AWG Impedance 120 ohm 10 Impedance characteristic 2 6 dB 100m 1 0 MHz Maximum Distance 8 000 ft Coax cable for E1 Gauge 22 to 24 AWG Impedance 75...

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