Toshiba CTX28 manual Hheu Installation, 11-48, Feed Through To Hesb For HESC-65A Cable Block

Station Apparatus

2000-series Telephones

HHEU Installation

See Figures 11-24and 11-32~11-35and follow these steps:

1.Loosen the four captive screws on the telephone base, and remove the base.

2.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.)

3.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

R607 (HHEU1 V.1 ~ V.3)	SW601
	(HHEU1 V.1 ~ V.3)

OCA (HHEU1 V.4 or HHEU2)

P601

HHEU

1487

Figure 11-32 HHEU Installation

4.Connect the HESC-65A cable to P601 of the HHEU (both HHEU1A versions and the HHEU2 have P601) if the Loud Ringing Bell option is required.

Refer to Chapter 12 – Peripheral Installation for HESB installation procedures.

5.For the V.3 HHEU1: If only the headset is connected to the HHEU, cut both sides of the R607 resistor, then remove the resistor to eliminate electrical contact.

Note Do not cut the R607 resistor if connecting an HESB to the HHEU for the Loud Ringing Bell–even if a headset is also installed on the HHEU.

...or

For the V.4 HHEU1 and the HHEU2: if only the headset is connected to the HHEU, cut the speaker OCA strap.

Feed Through	To HESB
for HESC-65(A) Cable	Block

1488

SW601

HESC-65 Cable

or

HESC-65A Cable

HHEU P601

Figure 11-33 HESC-65A Cabling

Note Do not cut the speaker OCA strap if connecting an HESB to the HHEU for the Loud Ringing Bell–even if a headset is also installed on the HHEU.

6.Position the HHEU PCB on the standoffs inside the base, and secure with the two provided screws.

Note See Figures 11-34~11-35for Steps 7~8.

11-48 Strata CTX I&M 06/04