AT&T Call Management System Supervizor's Manual page 243

Troubleshooting
ERROR--CU 1 Faulty or Disconnected. CMS Cannot Manage Calls.
Status Indicator: CU 1 (flashing)
Audible Signal: A single short beep from the PC and a longer beep from
the CMS card
Effect on Call Management:
is corrected. See "Fallback Plan" at the end of this chapter.
NOTE:
CMS can manage calls using the CU2 port on the CMS PC if it is connected
to the CU1 jack on the control unit.
Effect on Data Collection:
are saved, but data on calls in progress when the problem occurred are lost.
Contact the MERLIN LEGEND system manager before attempting these
corrective actions.
Possible Cause
A cable connection
between the CU1 jack and
the MERLIN LEGEND sys-
tern control unit is loose.
CU1 and CU2 are not con-
netted to the same MER-
LIN LEGEND system con-
trol unit module.
9-4 Error Messages
CMS cannot manage calls until this problem
Data collection stops. Data on completed calls
Corrective Action
1. Make sure one end of the cable is
plugged securely into the CU1 port on
the back of the PC.
2. Make sure the other end is plugged
securely into the jack assigned to CU1
on the MERLIN LEGEND control unit.
Connect the CU1 and CU2 cables to two
operator jacks on the same analog
module.