Electronic Telephone Upgrades
Station Apparatus
Strata DK40 I&M Manual Spring 1999
5-19
Refer to the Strata DK40 Programming Manual or DK Library CD-Rom for more details.
HVSU/HVSI Upgrade Installation
1. Loosen the four captive screws securing the telephone base (Figure 5-1) and remove the
base.
2. Align the P5 connector on the HVSI subassembly with the receptacle on the HVSU
subassembly (Figure 5-12). 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.
3. Position the HVSU/HVSI subassembly on the standoffs inside the base, and secure with
the two screws provided (Figure 5-12).
4. Connect the HVSU/HVSI subassembly wire plug to the P2 connector on the electronic
telephone PCB (Figure 5-11).
5. Reinstall the electronic telephone base, and secure it with its four captive screws.
To P2 HVSU
Connector on
Main PCB
Inside Telephone
HSVI
P5
HVSU
1491
Figure 5-12 HVSI/HVSU Installation for Electronic Telephones
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