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Chapter 4.
d)
e)
f)
Note :
a)
b)
20
and indicates that NSE is completely locked to the input reference i.e.
CLK0.
At MAX-L exchange end, the clock cards i.e. SCK-02 cards in both
copies need to be replaced with SCK-04 cards for NSE integration.
Hence force out standby SCK-02 card and replace it with SCK-04 card.
Force in this SCK copy. Now force out the other SCK-02 card and
replace it with SCK-04 card. Force in service this SCK copy also.
At CRP terminal give the following commands:
1.
MOD-CLKSRC-EQPAG to equip NSE clock. The response on
CRP terminal shall indicate equipage of NSE clock. Also an
urgent alarm on OOD and ADP shall be raised indicating the
equipage of NSE clock.
2.
SEL-CLK-SRC to select NSE-0 (NSE clock connected to SCK-0
copy) or NSE-1 (NSE clock connected to SCK-1 copy). Urgent
alarm from OOD & ADP shall be removed.
3.
DISPL-CRNT-CLK-SRC command to display which clock is
selected by the exchange i.e. NSE-0, NSE-1, CLK-0 (SCK-0) or
CLK-1 (SCK-1).
Connect a cable at DTS monitor port (corresponding to the selected
reference at NSE) and the IOP to get slip dumps using PORTMON and
SLIP utility as explained in Chapter 7.
Care must be taken that NSE 2 MHz output cable length shall
not be more than 10-15 meters.
SCK-04 card shall be used only when NSE output is connected to
it.
C-DOT NSE
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