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Possible cause
The cable is faulty.
The jack assigned to CU
1 in the MERLIN II
system control unit is
faulty.
1
2
The CU 1 jack on the
CMS card is faulty.
Corrective action
Try switching the cables plugged into CU 1
and CU2. Unplug the cable from CU 1 and
plug it into CU 2, and vice versa. If the CU 1
indicator on the screen stops flashing and the
CU 2 indicator appears on the screen, you
know the problem is either a faulty cable or a
faulty MERLIN II system component. Do not
plug the cables back into their original jacks on
the CMS card. Restart CMS. CMS can
manage calls using only the CU 1 jack while
you further isolate and correct the problem.
Unplug the CU 1 cable from its jack in the
MERLIN II system control unit and plug it
into another attendant jack. The control
unit jacks that can be attendant jacks are
marked “ATT” on the Station Jacks section
of the MERLIN II system Master Planning
Form.
Administer the jack as an attendant jack
following the instructions under the
heading “Designate Attendant Positions”
in “Step 3: Perform Basic Administration”
in Section 4 of the MERLIN II
Communications System with Feature Module 2
Installation and Administration Manual.
If none of the above actions correct the
problem, contact your equipment supplier for
assistance.
Call Management Problems
9-11