Patton electronic 2701/B, 2701/D, 2701/C SW1-6 SW1-7 Clock Mode, SW1-6 and SW1-7 Clock Modes

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SW1

SW2

SW3

SW4

SW5

Speed

 

 

 

 

 

 

On

On

Off

On

Off

1344 kbps

Off

On

Off

On

Off

1408 kbps

 

 

 

 

 

 

On

Off

Off

On

Off

1472 kbps

 

 

 

 

 

 

Off

Off

Off

On

Off

1536 kbps

 

 

 

 

 

 

On

On

On

Off

Off

1600 kbps

 

 

 

 

 

 

Off

On

On

Off

Off

1664 kbps

 

 

 

 

 

 

On

Off

On

Off

Off

1728 kbps

 

 

 

 

 

 

Off

Off

On

Off

Off

1792 kbps

 

 

 

 

 

 

On

On

Off

Off

Off

1856 kbps

 

 

 

 

 

 

Off

On

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1920 kbps

 

 

 

 

 

 

On

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1984 kbps

 

 

 

 

 

 

Off

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Off

Clear Channel 2048 kbps

 

 

 

 

 

 

Note When the data rate is set to 2.048Mb/s, the unit is forced into G.703 mode, and it transmits user data on all 32 time-lots. There is no framing information; therefore, the CRC4 MF (SW2-2) switch is ignored. In all other rate settings, the unit employs G.704 framing; TS0 is reserved for signaling.

SW1-6

SW1-7

Clock Mode

 

 

 

On

On

Network (Received Recovered)

On

Off

Internal

 

 

 

Off

On

External

 

 

 

Off

Off

Network (Received Recovered)

 

 

 

SW1-6 and SW1-7 Clock Modes

Use Switches SW1-6 and SW1-7 to configure the 2701 for internal, external, or receive recover clock mode.

Network Clock—Transmitter timing is derived using the received line signal (received recovered) from the network.

Internal Clock—Transmitter timing is derived from an internal clock source.

External Clock—Transmitter timing is derived from DTE terminal timing.

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Contents User Manual Contents Page Warranty Information Radio and TV InterferenceCE Notice Tel +1 301 Email support@patton.com ServiceFeatures General InformationDescription DIP Switch Configuration ConfigurationSwitch SW1-1 through SW1-5 SW1 SW2 SW3 SW4 SW5Speed SW1-6 and SW1-7 Clock Modes SW1-6 SW1-7 Clock ModeS1-8 Setting SW1-8 Enable/Disable Loop Tests from DTEPosition Function Factory Default Selected Option Switch SW2-1 Line Coding HDB3 defaultSwitch SW2-3 Data Inversion Switch SW2-2 CRC-4 MultiframeSW2-2 Option SW2-3 OptionSwitch SW2-5 Front Panel Switches Switch SW2-4 Remote Digital Loopback TypeSwitch SW2-6 V.54 Response Disabled default S2-4 RDL TypeConnecting to the G.703 Network InstallationConnecting the Twisted Pair 120 ohm to the G.703 Network Opening the CaseConnecting to a DTE Device Connecting the Serial PortPower Connection Connecting to a DCE DeviceUniversal AC Power 100-240 VAC Configuring the X.21 Interface 2701/DThere are no user-serviceable parts DC PowerPower supply section of the Model 2701. Con Tact Patton Electronics Technical support atOperation POWER-UPLED Status Monitors TD & RDOperating Local Loopback LL Loop V.54 & Telco DiagnosticsRemote Loop in a Network Extension Application Operating Remote Digital Loopback RLCSU Loop Using the V.52 BER Test Pattern GeneratorAppendix a Network ConnectorNetwork Data Rate Nominal ImpedanceTemperature Power SupplyDimensions HumidityAppendix B Page Appendix C Interface 34F Female Connector DCE Configuration Pin # SignalPage Appendix D Patton Model # Description Appendix E