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

Off

Off

Off

1920 kbps

 

 

 

 

 

 

On

Off

Off

Off

Off

1984 kbps

 

 

 

 

 

 

Off

Off

Off

Off

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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Image 9
Patton electronic 2701/B, 2701/D, 2701/C user manual SW1-6 SW1-7 Clock Mode, SW1-6 and SW1-7 Clock Modes