Toshiba DK8 HVSU2 Installation for Electronic Telephones, 90 DKT2000 Add-On-Module Installation

1)Loosen the four captive screws securing the telephone base (Figure 6-1), and remove the base.

2)Depending on the telephone, refer to Figure 6-7, 6-8, or 6-9 and locate the EX.POW straps, W101 and W102. Cut these straps.

3)Reinstall the telephone base, and secure it with its four captive screws.

NOTE:

Refer to Section 100-816-208for external AC/DC power supply ordering information and installation instructions.

3.90DKT2000 Add-On-Module Installation

3.91See Paragraph 7 in this chapter.

4ELECTRONIC TELEPHONE UPGRADE OPTIONS (DK16 Only)

4.00This section describes how to upgrade and configure electronic telephones for features and options.

4.10Off-hook Call Announce Upgrade (HVSU2 or HVSU/HVSI)

4.11Electronic telephones must be equipped with either the HVSU2 subassembly or the combined HVSU and HVSI subassemblies to receive Off- hook Call Announce (OCA) calls. These tele- phones also require three-pair wiring to receive OCA, instead of the standard two-pair. Telephones making OCA calls do not require an upgrade or extra wire pair.

4.12HVSU2 Upgrade Installation. Install the HVSU2 in accordance with the following steps:

1)Loosen the four captive screws securing the telephone base (Figure 6-1), and remove the base.

2)Position the HVSU2 on the standoffs inside the base, and secure with the two provided screws (Figure 6-12).

INSTALLATION-STATION APPARATUS
	SECTION 100-816-206
	MARCH 1993
TO HVSU
CONNECTOR (P2)
ON MAIN PCB	HVSU2
INSIDE
TELEPHONE

FIGURE 6-12

HVSU2 INSTALLATION FOR ELECTRONIC TELEPHONES

3)Connect the HVSU2 wire plug to the P2 connector on the printed circuit board (PCB) in the telephone (Figure 6-13).

4.13HVSU/HVSI Upgrade Installation. In- stall the HVSU/HVSI subassemblies in accor- dance with the following steps:

1)Loosen the four captive screws securing the telephone base (Figure 6-1), and remove the base.

2)Align the P5 connector on the HVSI subas- sembly with the receptacle on the HVSU subassembly (Figure 6-14). Apply firm, even pressure to the PCBs to ensure that the connectors mate properly (they should click).

NOTE:

Exercise care when assembling the HVSU to the HVSI to prevent damage to the connector pins; also, verify that the HVSU is aligned with the silk-screened image on the HVSI.

6-11