Toshiba CTX28 用户手册
PCB Installation
BDKU/BDKS – Digital Telephone Interface Unit
Strata CTX I&M 06/04
6-7
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BDKU/BDKS – Digital Telephone Interface Unit
Circuits per PCB:
eight digital telephone circuits (plus eight more with the BDKS PCB)
Interfaces with:
all Toshiba digital telephones (corded and cordless, DDCB, DSS, ADM, BPCI)
Older Version(s):
none
BDKU Hardware Options
BDKU can be equipped with a BDKS piggyback PCB to provide a total of 16 circuits. Refer to
for instructions on how to connect digital telephones, DDCBs, and
DDSS consoles to the BDKU/BDKS, as well as how to upgrade digital telephones with these
options: a PC Interface Unit (BPCI), a Speaker Off-hook Call Announce upgrade (BVSU), and a
Headset/External Speaker (BHEU). The BDKU can be installed alone, or with the BDKS
subassembly.
options: a PC Interface Unit (BPCI), a Speaker Off-hook Call Announce upgrade (BVSU), and a
Headset/External Speaker (BHEU). The BDKU can be installed alone, or with the BDKS
subassembly.
BDKS
The BDKS can be installed onto the BDKU to add eight more digital telephone circuits.
³ To install the BDKS
³
Match the BDKS connectors to the BDKU, as shown in
. Press firmly to ensure that
the connectors are snug.
BDKU Installation
1. Set the BDKU/PDKU switch for the appropriate system (refer to
).
2. Insert the BDKU2 (component side
facing right) into the appropriate slot,
and apply firm, even pressure to
ensure proper mating of connectors.
Refer to
and apply firm, even pressure to
ensure proper mating of connectors.
Refer to
to ensure the BDKU is in a suitable
slot.
slot.
3. Install the Ferrite Core (comes with
the BDKU) onto the 25-pair cable
that connects the BDKU to the MDF:
Flip open the two snaps on the Ferrite
Core, then snap it shut around the
BDKU cord as shown in
that connects the BDKU to the MDF:
Flip open the two snaps on the Ferrite
Core, then snap it shut around the
BDKU cord as shown in
.
The core must be as close as possible
to the BDKU.
to the BDKU.
The core is needed to comply with
FCC requirements.
FCC requirements.
4. Some Ferrite Cores require a tie-wrap
at the bottom to keep it from sliding.
For those, feed the tie-wrap through
the slots in the Ferrite Core, then cinch it.
For those, feed the tie-wrap through
the slots in the Ferrite Core, then cinch it.
S104
5845
F
errite Core
T
ie Wrap
Figure 6-3
BDKU Ferrite Core