G.703/G.704 NTU W/V35
10
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.
2.3.19 SW1-6
AND
SW1-7 C
LOCK
M
ODES
Use Switches SW1-6 and SW1-7 to configure the MT335A 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
