Cordless Section; Cordless Section; Explanation Of Data Communication - Panasonic KX-F900 Service Manual

KX-F900 J
13. CORDLESS SECTION
13-1. EXPLANATION OF CPU DATA COMMUNICATION
(1) Calling
Portable
Handset (STANDBY MOD E)
Base
Unit
[TALK]
TALK LED ON
ACK-T
ACK-OK
(Empty Channel Information)
TALK
When calling, a communication
request DATA (ACK-T) is
transmitted from the Portable
Handset first, and a permitting
data (ACK-OK) is returned from
the Base Unit to it, then a
communication data (TALK) is
transmitted from the Portable
Handset.
OFF HOOK
IN USE LED ON
The permitting DATA (ACK-OK)
from Base Unit to Portable
Handset includes the empty
channel information stored in
Base Unit. After transmitting the
communication DATA (TALK)
from Portable Handset to Base
Unit, the channel is used.
(2) To terminate
Communication
[TALK]
TALK LED OFF
STANDBY
When the TALK button on
Portable Handset is pressed
during communication, a LINK
terminating DATA (STANDBY) is
sent to terminate communication.
OFF HOOK
IN USE LED OFF
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