Hardware manual

Issue 8 Electra Elite
5 - 30 Installing Electronic Telephone Units
4.3.2 Installation
A maximum of 16/8 COI(4)/(8)-U( ) ETUs can be installed
in any IF slot in the system, limited by 64 trunks.
4.3.3 Switch Settings
Refer to Table 5-9 COI(4)/(8)-U( ) ETU Default Switch
Settings.
4.3.4 LED Indications
Table 5-9 COI(4)/(8)-U( ) ETU Default Switch Settings
Switch Setting Description
SW1~8
Set according to the
line type.
Default Setting: LP
Switches between Loop Start (LP)
or Ground Start (GS) Trunks on
Lines 1~8 of COI(8)-U( )ETU.
SW1~4 LP only Always LP for COI(4)-U( ) ETU
Reset N/A Resets the COI ETU
Table 5-10 COI(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
COI(4)/COI(8)
Busy Not Used Idle
LED 2 Line 2 status
COI(4)/COI(8)
Busy Not Used Idle
LED 3 Line 3 status
COI(4)/COI(8)
Busy Not Used Idle
LED 4 Line 4 status
COI(4)/COI(8)
Busy Not Used Idle
LED 5 Line 5 status COI(8) Busy Not Used Idle
LED 6 Line 6 status COI(8) Busy Not Used Idle
LED 7 Line 7 status COI(8) Busy Not Used Idle
LED 8 Line 8 status COI(8) Busy Not Used Idle