BEIJING HUAHUAN ELECTRONICS Co., LTD.
H9MO-1641S User Guide V2.2
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5.1 OLT-A
Interface
Double click the OLT-A, the pop-up window is shown as figure 5.3.
Figure 5.3 OLT-A interface
From the pop-up window of the OLT-A, that is used for status display and defining the ‘Alarm
Indicator’; ‘Loopback’; ‘SDH Clock Mode’; ‘Operation Mode’; ‘J0 Byte Setup’; ‘J1 Byte Setup’; ‘J2 Byte
Setup’; ‘Version Query’; ‘RS485 Rate Setting’; ‘E1 Signal Status’ and ‘Self Healing Mode’. The
‘Loopback’ command is used for interface OLT-A only.
Click the ‘SDH Clock Mode’, the ‘System Clock Setting’ will appear as figure 5.4. The upper
portion is used to define the priority of the external clock (including the line clock). The highest priority is
‘I’ and the lowest is ‘V’.
On the left hand side of the lower portion, it shows the clock mode which is currently in use. ‘Free
Oscillation’ means at tthe internal crystal clock is being used. When the external clock is selected, the
