Toshiba strata CT Installation & Maintenance Manual page 168

Station Apparatus
G
G
HHEU Upgrade Installation
H
Figure 5-9 HHEU Installation for Digital Telephones
See
1.
C
2.
3.
5-12
A Toshiba HESC-65A cable is required to connect the HHEU in a digital telephone to
the HESB.
2000 & 2500-series digital telephones can support an HHEU and a PCIU at the same
time.
R607 (HHEU1 V.1 ~ V.3)
HHEU
Figures 5-1 and 5-7~5-10
Loosen the four captive screws on the telephone base, and remove the base.
Use a screwdriver or other suitable tool to remove the plastic tab on the back of the base.
(The HHEU modular connector for the headset is accessed through this opening.)
If installing a V.3 HHEU1, set the SW601 switch on the HHEU to headset for the
headset or loud bell application.
V.4 HHEU1 and HHEU2 do not have this switch, because they are automatically set for
the headset/loud bell application.
Component Side of HHEU
SW601
(HHEU1 V.1 ~ V.3)
OCA
(HHEU1 V.4
or HHEU2)
P601
1487
and follow these steps:
Strata CT I&M Manual October 2000