Appendix
2.2 LED Indication
Appendix 2-3
INTERCOM button
Off
Green On
Flashing Green Slowly
Flashing Green Moderately
Flashing Green Rapidly
Intercom Line Condition
Idle
You are using the line.
You are holding a line.
Intercom call exclusive hold
Incoming intercom/doorphone call

LED Indication on the INTERCOM Button

The table below shows the lighting patterns for intercom line conditions.

BLF on DSS Button

The Busy Lamp Field (BLF) indicator button is red when the corresponding extension is busy.
This is available for flexible CO buttons assigned as DSS buttons on proprietary telephones
and DSS buttons on DSS console.
The Light Emitting Diode (LED) button indicate the line conditions by using lighting patterns.

Flashing light patterns

CO Button
Off
Green On
Flashing Green Slowly
Flashing Green Moderately
Flashing Red Rapidly
Red On
Flashing Red Slowly
Outside (CO) Line Condition
Idle
You are using the line.
You have a held call or Hold Recall.
You have one of the following:
(1) exclusive hold, or (2) outside-to-outside (CO-to-CO) line call
Incoming call
Other-use
Other hold*

LED Indication on the CO Button

The table below shows the lighting patterns for outside (CO) line conditions.
— Item with a * is only available on a Single-CO button.
1 sec.
Flashing slowly
(60 flash/min.)
Flashing moderately
(120 flash/min.)
Flashing rapidly
(240 flash/min.)