AT&T 999-501-149 system manual ERROR-CU 1 Faulty or Disconnected. CMS Cannot Manage Calls

ERROR—CU 1 Faulty or Disconnected. CMS Cannot Manage Calls.

Status lndicator: CU 1 [flashing)

Effect on Call Management: Until this problem is corrected, CMS cannot manage calls. See “Managing Calls if CMS is Disabled” at the end of this section of the manual.

Possible cause		Corrective action
There’s a loose	Make sure one end of the cable is securely
connection between the	plugged into the CU 1 jack at the back of the
CU 1 jack and the	PC and the other end is securely plugged into
MERLIN II system	the jack in the MERLIN II system control unit
control unit.	assigned to CU 1.
The cable is faulty.	Try switching the cables plugged into CU 1
	and CU 2. Unplug the cable from the CU 1
	jack and plug it into CU 2, and vice versa, If
	the CU 1 indicator on the screen stops flashing
	and the CU 2 indicator goes on, 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.
The jack in the MERLIN	1	Unplug the CU 1 cable from its jack in the
II system control unit		MERLIN II system control unit and plug it
assigned to CU 1 is		into another attendant jack, The control
faulty.		unit jacks that can be attendant jacks are
		marked “ATT” on the Station Jacks section
		of the MERLIN II system Master Planning
		Form.
	2	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.
The CU 1 jack on the	If none of the above actions corrects the
CMS card is faulty.	problem, contact your equipment supplier for
	assistance.

9-4Startup Problems