Station Apparatus
Electronic Telephone Upgrades
Strata DK I&M 6/00
11-23
Station Apparatus
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
●
Handset OCA is not available on electronic telephones.
HVSU2 Upgrade Installation
See
and follow these steps:
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.
Figure 11-20
HVSU Installation for Electronic Telephones
To HVSU
Connector (P2)
On Main PCB
Inside
Telephone
HVSU2
1489
R-UP (6510-H,
6510-S, 6520-S)
To HHEU
Connector
P1
To HVSU
Connector, P2
Room Noise
Beep
Strap
HI
Carbon Straps
W201
W202
Carbon
HHEU Strap
W203
Red Wire
RED
RED
R-UP
(6520-SD)
P2
P1
1490
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