Samsung OfficeServ 7100 Technical Manual page 60

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OfficeServ 7100 INSTALLATION
TECHNICAL MANUAL PART 7 APRIL 2007
operation. In addition the FKDBF may have up to 3 external microphones attached to it
for conference room type applications. These microphones require an "EXTMIC" key
programmed on the keyset to activate or deactivate them. See Figure 7.11.
DS KDB-FULL DUPLEX (KDBF)
This is a daughter card that can only be installed in the 21D or 14D button keysets. The
standard speakerphone mode of operation for a DS keyset is "half duplex". This means
that you cannot transmit and receive speech at the same time. Adding a KDBF to your
keyset will convert the speakerphone into full duplex mode enhancing its operation. In
addition the KDBF may have up to 3 external microphones attached to it for conference
room type applications. These microphones require an "EXTMIC" key programmed on
the keyset to activate or deactivate them.
The KDB-D/KDB-S daughter boards are not supported on the iDCS and DS keysets
when connected to the OfficeServ 7100 system.
7.8