Led Indications - NEC ux5000 Hardware Manual

Chapter 2 - Blade Installation and Startup
The 4COIU consumes 4 trunk ports ranging between ports 001-200. The CN2 connector provides connection
to 4 analog trunk ports. The ground start ports are polarity sensitive (tip to tip, ring to ring) - the loop start
trunks are not. The power failure circuits (CN3), however, are not polarity sensitive.

2.7.1.1 LED Indications

Live LED
Flashing
(1 second)
Flashing
(100 ms)
2 - 64
9.5" 19" Chassis
Chassis w/CCPU
2 5
When using the COIU-LG1 blade for ground start trunks, the PBX
●
ground must be connected as described on page 1-73 or the trunks will
not function correctly.
The ground start trunk ports are polarity sensitive. Be careful when
●
wiring the trunks.
When connecting the RJ61 cables to the COIU blade, note the position
●
of the Power Failure connector (CN3). Do not confuse this connector as
the trunk connector (CN2).
LED Indication
Busy LED
(green) (red)
On On
On
Flashing
(1 second)
On
Off
Off On
Off
Flashing
(80 ms on/
off x 3/400
ms off)
Blade Maximum's
19" Chassis
w/o CCPU
6
! Important !
Operation Status
Blade Initializing
Blade assignment refused (system
capacity exceeded or software
version incorrect)
Trouble found during self-
diagnostics routine.
Normal operation
Blocked blade
Downloading firmware
19" Chassis System Max.
x4 w/Networking
23 25
Operation Status
At least 1 channel busy
All channels idle
At least 1 channel busy
All channels idle
Chapter 2