Station Apparatus
7-9
Strata CTX I&M September 2002
Figure 7-6 BHEU Installation
Telephone Option Straps
Certain option straps on the DKT3000/3500-series phones must be cut when installing carbon
handsets, external power or headsets. Refer to Table 7-5 and Figures 7-7~7-9 for further instruction.
Table 7-5 Station Option Interface PCB Compatibility
Name of
the Strap
on the DKT
PCB
DKT3010-S,
DKT3020-S,
DKT3010-SD,
DKT3020-SD
DKT3500-series
DKT3014
-SDL
DKT3001 Explanation
Carbon W301, W302
W301,
W302
If a carbon-type handset or carbon-type headset is
connected to the
handset
jack, the carbon wire
jumper straps, listed on the left, must be cut inside
the telephone. When a carbon headset is connected
to the BHEU, you do not need to cut the straps. See
Figures 7-7~7-9.
HEU W303 W303 W103
To turn off the handset receiver when the handset is
on-hook and a headset is used with the BHEU, cut
the “HEU” strap shown on the left.
EX.POWE
R
W101, W102
W101,
W102
W101,
W102
Cut the “EX.POWER” straps only when external
power is connected to the second pair (pins 2 and 5)
of the telephone modular jack. See Chapter 6 –
MDF PCB Wiring, Figure 6-6 on page 6-9.
SET UP W401, W402
W401,
W402
Do not cut – for factory use only.
Digital
Telephone
Top Assembly
Digital
Telephone Base
Red
Wire
5657
(P3) HEU
BHEU
BVS U or BP C I
(optional)
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