2 - 64 Chapter 2
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
Blade Maximum’s
9.5”
Chassis
19” Chassis
w/CCPU
19” Chassis
w/o CCPU
19” Chassis
x4
System Max.
w/Networking
25 6 2325
LED Indication
Operation Status Operation Status
Live LED
(green)
Busy LED
(red)
On On Blade Initializing
Flashing
(1 second)
On Blade assignment refused (system
capacity exceeded or software
version incorrect)
Flashing
(1 second)
Trouble found during self-
diagnostics routine.
Flashing
(100 ms)
On Normal operation At least 1 channel busy
Off All channels idle
Off On Blocked blade At least 1 channel busy
Off All channels idle
Flashing
(80 ms on/
off x 3/400
ms off)
Downloading firmware
! Important !
● 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).
To Next Page
Loading...
