Toshiba CTX28 manual Telephone Bheu to External Speaker Hesb Cable Connection, 12-18

Peripheral Installation

External Speaker Unit (HESB) Options

6.Connect terminal 8 of the HESB TB1 terminal block to the yellow (L2) wire of the HESC-65A cable using a modular block.

7.Connect the HACU-120 power supply’s +12V lead to terminal 1 of the HESB TB2 terminal block, and connect the power supply’s 0V lead to terminal 2.

8.Plug the provided power cord into the power supply and to a 115VAC ± 10VAC, 60Hz power source.

Important! If AC voltage is not within range, have a qualified electrician correct the problem.

Telephone (BHEU) to External Speaker (HESB) Cable Connection

The HESC-65A cable is required to connect the telephone BHEU to the HESB external speaker. The BHEU can be installed into the DKT3000-series telephones. It can also be installed into DKT3010 and DKT3020 telephones that have either a BVSU or BPCI installed. For DKT3001 telephones, the installation is same as below, only the connector location is different.

HESC-65A and BHEU Installation

1.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 HESC-65 cable connector is accessed through this opening. See Figure 12-17.)

2.Connect the HESC cable to P1 of the BHEU and feed it through the telephone base.

3.Position the BHEU PCB (component side down) on the standoffs inside the base, and secure with the two provided screws (see Figure 12-18).

4.Connect the BHEU integrated wire plug to P3 (HEU) on the telephone base PCB (see Figure 12-19). Note the location of the red wire

Feed through	To HESB
HESC-65A Cable	Block

Knock out with screwdriver for BHEU

5650

modular connector

SW601

HESC-65 Cable

or

HESC-65A Cable

BHEU P1

Figure 12-17 HESC-65A Cabling

...or for DKT3001 telephones only, connect the BHEU wire plug to P1 (HEU) on the telephone base PCB (see Figure 12-20). Note the location of the red wire.

5.Reinstall the base on the telephone.

6.Connect the HESC-65A cable to the HESB (see Figure 12-17).

7.Connect station wiring (see Figure 12-21).

12-18 Strata CTX I&M 06/04