Toshiba strata CT Installation & Maintenance Manual page 206

Peripheral Installation
Installing the HESB Loud Speaker Amplification in Digital Telephones
1.
2.
3.
Note
4.
5.
6.
7.
H
8.
Important!
C
6-18
Connect a jumper between terminals 2 and 10 on the HESB TB1 terminal block
(Figure 6-11).
Connect a jumper between terminals 4 and 5 on the HESB TB2 terminal block.
Install an HHEU PCB and HESC-65A cable in the telephone per
Apparatus before proceeding with Step 4 for more information..
HESB connections made in
modular jack instead of the TB1 terminal block.
Connect terminal 1 of the HESB TB1 terminal block to the red (+) wire of the HESC-
65A using a modular block.
Connect terminal 2 of the HESB TB1 terminal block to the green (-) wire of the HESC-
65A using a modular block.
Connect terminal 8 of the HESB TB1 terminal block to the yellow (L2) wire of the
HESC-65A cable using a modular block.
Connect the customer supplied +12VDC power supply lead (+12V) to terminal 1 of the
HESB TB2 terminal block, and connect the power supply's 0V lead to terminal 2.
Plug the provided power cord into the power supply and into a 240VAC, 50Hz power
source.
If AC voltage is not within range, have a qualified electrician correct the
problem.
Steps 4~6 can be accomplished using the HESB VOICE
Strata CT I&M Manual October 2000
Chapter 5 – Station