Carbon Handset Transmitter Installation - Toshiba Perfecptione Installation And Maintenance Manual

telephone, and the NDKU must be set for option 2
(see Paragraph 3.45 of this chapter).
6.22 A DVSU PCB inside a lOOO-series digital
telephone allows the digital telephone to receive
the Off-hook Call Announce feature.
NOTE:
It is not recommended to equip digital tele-
phones with both Off-hook Cal/Announce and
the headset option at the same time.
6.23 The installation of the DVSU PCB must be
done in accordance with the following steps:
1) Loosen the four captive screws securing the
telephone' s mounting base (Figure 4-43), and
remove the base.
2) Loosen the four captive screws securing the
metal plate to the standoffs inside the base
where the DVSU PCB will be installed (Figure
4-46). Remove the metal plate and discard it.
3) Position the DVSU PCB on the standoffs
Make sure that
the
DVSU wire
TO DVSU
plugs are inserted into the
correct UPPER and LOWER
CONNECTOR
PCB connectors of the
ON UPPER PCB
telephone. Do not plug DVSU
INSIDE into HHEU connector.
TELEPHONE
IMPORTANT! IMPORTANT!
.I-,--
-----? that
the
DVSU wire
! inserted into the
' PPER and LOWER
nnectors of
the
ON LOWER
PC
TELEPHONE
FIGURE 4-46-DVSU INSTALLATION
INSTALLATION INSTRUCTIONS
SECTlON200-255-204
FEBRUARY1992
(Figure 4-46), and secure it with the four
screws provided. '
4) Connect the DVSU wire plugs to the connec-
tors labelled "DVSU"on both telephone' s PCBs
(Figures 4-46 and 4-47).
IMPORTANT NOTE.'
Make sure that the DVSU wire plugs are
connected to the proper connectors.
5) Reinstall the telephone' s mounting base
(Figure 4-43), and secure it with its four cap-
tive screws.
6.24 A single pair of wires are required to connect
the digital telephone to the NDKU port. OCA con-
nection details are shown in Figure 4-42, the Digital
Telephone Connection diagram.
6.30 Carbon Handset Transmitter Installation
6.31 If a customer-supplied carbon-type handset
is used with the 1 OOO-series digital telephone, the
two jumper straps on the telephone' s upper PCB,
labelled "PERCEPTION-SUB (SPF)," must be cut.
To cut the straps:
1) Loosen the four captive screws securing the
telephone' s mounting base (Figure4-43), and
remove the base.
FIGURE 4-47
TELEPHONEPCBCONNECTIONSANDSTRAPS
4-35