Nortel Communication Server 1000 Fundamentals page 27

If the LEDs do not flash three times, unseat the card using the faceplate
ejector tabs, breaking the card's connection with the backplane. Re-insert
the card and lock it in place with the ejector tabs. If the LEDs still do not
flash three times, contact a sales representative about returning the card
to Nortelfor repair or replacement.
Every time an MCR card boots, the self-test examines Flash memory
to see if it has a good checksum. If not, the card runs a complete Flash
memory read/write test. The results of the self-test are shown in
"Messages from Power-On Self-Test for Flash Memory" (page
Table 2
Messages from Power-On Self-Test for Flash Memory
Message
Flash test running...
FLASH NOT DETECTED
Flash erased and passed test
Flash read/write error
Timeslot assignment and hold
The determining factor for timeslot assignment is on-hook/off-hook status.
When MCR detects a telephone going off-hook, it assigns a timeslot to
that telephone. For analog cards, off-hook status is used to indicate a
need for a timeslot. For digital cards, any speaker-on state is used to
indicate a need for a timeslot; MCR assigns a timeslot to the telephone if
the handset is picked up or the handsfree mode is activated. ACD sets
receive a timeslot when they are logged in or when the headset is plugged
in. When all speakers are turned off and all ACD sets are logged off, MCR
determines all timeslots to be available.
As long as the digital set is off-hook, it retains the timeslot. An MCR user
may place a call on hold, make a second call, and switch between calls.
However, the call on hold is not occupying a timeslot. If the user places
the digital set on-hook while there is still a call on hold, the timeslot is
lost, but not the call. To re-establish the call, another timeslot must be
available. If the MCR user tries to access the call that was placed on hold
while no timeslots are available, the user will receive re-order but the call
will remain on hold. After receiving re-order, the user may place the call
back on hold and try again for a timeslot. This may be repeated until a
timeslot is available or the caller hangs up.
This informs you that the card is functioning.
You must wait for the test to finish. The Yellow
Maintenance LED on the faceplate should be
flashing.
If the FMM is not installed, this message appears.
This is not an error.
Internal Flash or FMM memory has passed the test.
Internal Flash or FMM memory has failed the test.
Nortel Communication Server 1000
Mini-Carrier Remote Fundamentals
NN43001-557 04.01 4 June 2010
Copyright © 2003-2010 Nortel Networks. All Rights Reserved.
Functionality 27
Table 2
27).
Meaning