Hardware manual

Issue 8 Electra Elite
5 - 44 Installing Electronic Telephone Units
4.7.2 Installation
A maximum of 8 COID(4)/(8)-U( ) ETUs can be installed in
slots S1~S4 in the basic and first expansion B64-U10
KSUs (S7000 or lower).
Using S8000 or higher, 14 COID(4)-U( ) or eight
COID(8)-U( ) ETUs can be installed in any interface slot in
the system, limited by 64 trunks.
4.7.3 Switch Settings
The RESET switch resets the unit.
4.7.4 LED Indications
4.7.5 Connectors
The COID( )-U( ) has one connector:
CN1 Connects to the backboard
Table 5-17 COID(4)/(8)-U( ) ETU LED Indications
LED Description On Flashing Off
LIVE ETU status Operation stopped
(Power On)
Normal Operation No Power
LED 1 Line 1 status
COID(4)/COID(8)
Busy Not Used Idle
LED 2 Line 2 status
COID(4)/COID(8)
Busy Not Used Idle
LED 3 Line 3 status
COID(4)/COID(8)
Busy Not Used Idle
LED 4 Line 4 status
COID(4)/COID(8)
Busy Not Used Idle
LED 5 Line 5 status COID(8) Busy Not Used Idle
LED 6 Line 6 status COID(8) Busy Not Used Idle
LED 7 Line 7 status COID(8) Busy Not Used Idle
LED 8 Line 8 status COID(8) Busy Not Used Idle