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ON
ON
rd
bit：Time slot auto-follow function switch TS_FLOW（default status:
2. 3
OFF）
The following conditions must be satisfied to realize time slot auto-follow
function:
（1）Same series devices must be pair used and in point-to-point topology.
（2）In E1 line there is no PCM device that the Sa bit is occupied.
（3） Neither of the two ends devices can be configured in transparent mode.
Local device must be configured in fractional mode at first! Set SW1-1
ON, and DIP-switches from TS1 to TS31cannot be OFF all.
（4）When set local device in slave clock mode, time slot auto-follow function
will enable automatically.
After satisfy the above conditions, set the time slot auto-follow function switch
ON, and enable the auto-follow function, then local time slots and frame format
(PCM30/PCM31) will follow that of remote device.
th
bit：error code test switch BERT（default status: OFF）
3. 4
Inside the device there is an error code test unit that generates pseudo-random
sequences in 2E15-1 Std format, and transmits the sequences to E1 line. The
sequences can be configured to transmit in different data channels, then users
can configure loop-back mode for the device checking the return sequences.
The PWR/PAT indicator light will display test result. When there is error code,
the PWR/PAT indicator will turn green for 1 second at least, and will turn yellow
if there is no more error code.
When enable the error code test function (V35 service will be interrupted), the
device will send test sequences to data channel, and the function is available in
both fractional and transparent mode.
Note：
Error code test function can be used for variable tests along with multiple
OFF
N/A
ON
Slave clock mode （ follow E1Rx line clock）
rd
3
bit
Time slot
auto-follow function
switch
ON
Enable
OFF
Disable
SW5
4
ON
Enable inside error
code test
OFF
Disable inside error
code test
12
Raisecom Technology Co., Ltd
th
bit
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