DTA-SDH/155
Operating Manual
Shineway Technologies, Inc.
24
4. Event Record
Event record interface including: trace overhead test, regular overhead test, pointer value test,
pointer sequence test, error insert test, insert alarm, pointer adjusting test as in Figure 4-1.
Figure 4-1 Event Record Interface
4.1. Trace Overhead Test
Trace overhead test includes HOPOH (J0, J1) & LOPOH (J0, J2). Each part involves “Transmit
value”, “Expected value” and “Receive value”. The input value or parameter of “Transmit value” and
“Expected value” is set up by the ”Set” shortcut key, of which the result influences display select of
TCM in LED. “Receive value” will not be controlled by a shortcut key and receive in real time. The
initial interface is HOPOH. See Figure 4-2 as follows:
Figure 4-2 Trace Overhead Test
J0 has default value of “111111111111111”. J1 & J2 have default value of “111111111111111”.
