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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 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.
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
SW1-6 SW1-7 Clock Mode
On On Network (Received Recovered)
On Off Internal
Off On External
Off Off Network (Received Recovered)
SW1 SW2 SW3 SW4 SW5 Speed