Telephone Speaker Off-Hook Call Announce Upgrade (Bvsu) - Toshiba Strara CTX Series Installation And Maintenance Manual

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Telephone Speaker Off-hook Call Announce Upgrade (BVSU)

To receive Speaker Off-hook Call Announce (OCA) calls over the digital telephone speaker, a digital
telephone must be upgraded with a BVSU; the telephone making the call does not require a BVSU.
Digital telephones do not require an additional wire pair to receive Speaker OCA call.
Notes
BVSU is not necessary to receive handset OCA.
BVSU Upgrade Installation
1. Loosen the four captive screws on the telephone base and remove the base (see
2. On the BVSU see FigXXX below, set strip pins SW1 and SW2 per the table below:
Control/Indicator/Connector
SW1
SW2
Figure 7-1 Speaker Off-hook Call Announce Upgrade (BVSU1A)
3. Slide the BVSU under the tabs.
4. Position the BVSU holes over the standoffs and secure with the two provided screws.
Screws are provided with the BVSU:
Four M2.6 screws for DKT2000/2500
Two M3 screws for the DKT3000/3500
5. Connect the BVSU wire plugs to the two "PCI/VSU" connectors on the PCB inside the phone,
with the red wire on the side where "RED" is silk-screened on the DKT PCB (see
7-7, 7-8).
7-6
Type of Component
6-terminal jumper plug
3-terminal jumper plug
HF U
S P F
BVSU1A
30 (default) - use for DKT3000 telephones.
20 Mu - use for DKT2000 telephones in Mu Law
countries, including US and Canada.
20A - uses for DKT2000 in A Law countries.
SPF (default setting). Use for all DKT3000
DKT2000 telephones, except the DKT2010-H.
HFU - use for DKT200_H telephones.
20 Mu
S W1
6068
Figure 7-2).
Description
Figures 7-3
Strata CTX I&M September 2002
and