Loud Ringing Bell/Headset Upgrade (Hheu) - Toshiba STRATA DK14 Installation And Maintenance Manual

Station Apparatus
DKT2001 Digital Single Line Telephone
HHEU
W303
W302
Carbon
W301
Carbon
Figure 11-17 1000-series Digital Telephone Strap and Connector Locations

Loud Ringing Bell/Headset Upgrade (HHEU)

The Loud Ringing Bell/Headset upgrade (HHEU) enables an external speaker (HESB) for the
Loud Ringing Bell feature and/or a headset to be connected to both series of digital telephones.
Notes
There are two types of HHEUs: the HHEU1 (which has four versions, V.1~V.4) and the
G
HHEU2.
Both 2000- and 1000-series digital telephones require either an HHEU2 or a V.3 or V.4
G
HHEU1 for HESB operation; earlier HHEU1 versions are only sufficient for headset operation
only.
Only digital telephones equipped with an HHEU2 can be wall mounted. The HHEU2 is
G
identical to the V.4 HHEU1, except that the HHEU2 has longer wires to accommodate wall
mounting.
A Toshiba HESC-65A cable is required to connect the HHEU in a digital telephone to the
G
HESB.
1000-series digital telephones cannot be equipped with the HHEU (any type or version) and
G
the integrated data interface unit (PDIU-DI) at the same time, but 2000-series digital
telephones can support an HHEU and a RPCI-DI or PDIU-DI2 at the same time.
11-18
DKT1020SD
W201
Carbon
1020SD Room
Noise Switch
Ex. SP Strap
W204-1020H
W305-1020SD
DKT1020H
W202
HHEU
W203
N
H
HHEU
DVSU
1486
Ex: Power
W101/W102-1020H
Beep
W301-1020H
W304-1020SD
Ex: Power
W101/W102-1020SD
DVSU
HHEU
Red
Wire
Red
DVSU
Wire
Strata DK I&M
Red Wire
DVSU
6/00