Electronic Telephone Upgrades; Off-Hook Call Announce Upgrade (Hvsu2 Or Hvsu/Hvsi) - Toshiba STRATA DK14 Installation And Maintenance Manual

Electronic Telephone Upgrades

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

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

Electronic telephones must be equipped with either the HVSU2 subassembly or the combined
HVSU and HVSI subassemblies to receive Speaker Off-hook Call Announce (OCA) calls. These
telephones also require three-pair wiring to receive speaker OCA, instead of the standard two-pair.
Telephones making speaker OCA calls do not require an upgrade or extra wire pair.
Notes
See Notes in Figure 11-11 on Page
G
Handset OCA is not available on electronic telephones.
G
HVSU2 Upgrade Installation
See Figures 11-7 and
1. Loosen the four captive screws on the telephone base and remove the base.
2. Position the HVSU2 on the standoffs inside the base, and secure with the two provided screws.
3. Connect the HVSU2 wire plug to the P2 connector on the PCB in the telephone.
To HVSU
Connector (P2)
On Main PCB
Inside
Telephone
1489
Figure 11-20 HVSU Installation for Electronic Telephones
Strata DK I&M 6/00
11-14.
11-20 and follow these steps:
HVSU2
Electronic Telephone Upgrades
R-UP (6510-H,
6510-S, 6520-S)
Room Noise
RED
HI
P2
RED
Beep
Strap
R-UP
To HVSU
(6520-SD)
Carbon
Connector, P2
Carbon Straps
W201
W202
HHEU Strap
W203
Station Apparatus
To HHEU
Connector
P1
P1
Red Wire
1490
11-23