Hardware manual

Electra Elite Issue 8
System Hardware Manual 5 - 55
4.10.5 LED Indications
Refer to Table 5-21 EXPT(2)-U( ) ETU LED Description.
4.10.6 Connectors
CN 1
Connects to the backboard
CN 2
Connects to CN3 on the CPUB( )-U( ) ETU or CN 3
on the EXP-U( ) ETU (Installed in the first expansion
cabinet using an expansion cable).
CN 3
For Maintenance
CN 4
For Maintenance
CN 5
RS232 COM Port for manufacture inspection
Table 5-21 EXPT(2)-U( ) ETU LED Description
LED Description On Flashing Off
Live 2 Host Side
Operation
Stopped
Connected Not Connected
Live 1 Remote Side
Operation
Stopped
Connected Not Connected
Talk Channel Activity Active N/A Idle
LED 1
For manufacture
inspection
N/A N/A N/A
LED 2
For manufacture
inspection
N/A N/A N/A
LED 3 For manufacture
inspection
N/A N/A N/A